WO2010017121A2 - Portable multi position magnifier camera - Google Patents

Portable multi position magnifier camera Download PDF

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Publication number
WO2010017121A2
WO2010017121A2 PCT/US2009/052543 US2009052543W WO2010017121A2 WO 2010017121 A2 WO2010017121 A2 WO 2010017121A2 US 2009052543 W US2009052543 W US 2009052543W WO 2010017121 A2 WO2010017121 A2 WO 2010017121A2
Authority
WO
WIPO (PCT)
Prior art keywords
camera
image
display
housing
chamber
Prior art date
Application number
PCT/US2009/052543
Other languages
French (fr)
Other versions
WO2010017121A3 (en
Inventor
Carlos M. Rodriquez
Patrick Murphy
Waldemar Tunkis
Todd Conard
Michael Goldenberg
Jeffrey Mcdaniel
Brad Davis
Lee Hamilton
Original Assignee
Freedom Scientific, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Freedom Scientific, Inc. filed Critical Freedom Scientific, Inc.
Priority to EP09805389.5A priority Critical patent/EP2321960B1/en
Priority to ES09805389T priority patent/ES2428228T3/en
Priority to JP2011522135A priority patent/JP5600676B2/en
Priority to CN2009801308869A priority patent/CN102138321B/en
Publication of WO2010017121A2 publication Critical patent/WO2010017121A2/en
Publication of WO2010017121A3 publication Critical patent/WO2010017121A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19594Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays using a television camera or a still video camera
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/51Housings
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04Scanning arrangements
    • H04N2201/0402Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/043Viewing the scanned area
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04Scanning arrangements
    • H04N2201/0402Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0436Scanning a picture-bearing surface lying face up on a support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04Scanning arrangements
    • H04N2201/0402Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/045Mounting the scanning elements in a collapsible or foldable structure, e.g. for ease of transportation

Definitions

  • This invention relates to a magnification device for individuals with low vision. More particularly, the present invention relates to a portable magnification device that has a variety of discrete configurations .
  • magnifiers that are designed to be placed upon the object to be viewed typically leave little or no room over top of the object. This prohibits the user from interacting with the object being viewed. For instance, if the object is a document, a user cannot write upon the document while it is being magnified.
  • FIG. 1 is a perspective view of the magnifier camera of the present invention in a reading mode whereby the magnifier is placed upon an object to be viewed.
  • Fig. 2a is a perspective view of the magnifier camera being reconfigured from a reading mode to a closed configuration .
  • Fig. 2b is an additional perspective view of the magnifier camera being reconfigured from a reading mode to a closed configuration.
  • Fig. 2c is a perspective view of the magnifier camera in the closed configuration.
  • FIG. 3 is a detailed view of the underside of the magnifier camera showing the camera and associated mirror .
  • Fig. 4 is an exploded view of the lighting chamber of the present invention.
  • Fig. 5 is a diagram showing how lighting is distributed within the lighting chamber of the present invention.
  • Fig. 6 is a perspective view of the magnifier camera in the writing stand mode.
  • Fig. 7 is a perspective view of the magnifier camera in the handheld mode.
  • Fig. 8 is a perspective view of the magnifier camera in the inspection mode of operation.
  • Fig. 9 is a perspective view of the magnifier camera in the inspection mode of operation.
  • the present invention relates to portable magnifier camera that can be selectively positioned into a variety of configurations. At least four distinct viewing configurations are provided: a reading mode wherein the camera rests flatly upon the viewed object; a writing mode wherein the camera rests at an angle upon the viewed object; a hand-held mode wherein the user holds the camera relative to a distant object; and an inspection mode wherein the user holds the viewed object in close proximity to the camera. These configurations enable a user to effectively view objects of differing size and at varying distances .
  • the camera 10 of the present invention is depicted in Figure 1.
  • the camera 10 includes four housing components that are pivotally interconnected in a manner that provides for multiple discrete configurations. These housing components include a cover 20, a control panel 30, a camera housing 40, and a base 60. These components are preferably constructed from a lightweight impact resistant plastic. An acrylonitrile butadiene styrene (ABS) plastic, or the equivalent, is preferred.
  • Cover 20 includes an LCD screen 22 that is positioned within its interior face. The inner surface also includes opposing indentations 24 that permit screen 22 to be easily gripped and manipulated by the user. The exterior face of cover 22 serves to protect the various components of camera 10 when it is in a closed configuration (note Fig.
  • Screen 22 is preferably a full color video graphics array (VGA) display.
  • the input to the LCD screen 22 comes from a field programmable gate array (FPGA) that resides within camera housing 40.
  • FPGA field programmable gate array
  • LVDS LVDS is employed in interconnecting FPGA to LCD screen 22. This renders a purely digital output on screen 22 and also permits camera 10 to be used in conjunction with an external monitor (not shown) .
  • Cover 20 is pivotally interconnected to a control panel 30.
  • Control panel 30 includes a centrally located slider 32 as well as adjacent touch sensitive controls 34 and 36.
  • Slider 32 provides for the variable control of one or more camera functions. The variable control can be accomplished via a variable resistor, such as a rheostat, potentiometer, or like equivalents.
  • Control 34 can be used to take "snap shots" of the object being viewed. These static images can be stored in a memory for later viewing.
  • Control 36 can be used to cycle through the modes controlled by slider 32.
  • slider 32 is used to vary the camera magnification. For instance, by moving slider to the right (as noted in Fig. 1) a user can change the magnification continuously from 3.5x to 14x.
  • slider 32 is used to change the color combinations of screen 22. Namely, in order to enhance viewing for low vision users, LCD screen 22 can display the object being viewed in various color combinations, such as blue/green, red/yellow or black/white. Thus, slider 32 can be used to cycle through the various color combinations to find the most effective output for the user. This feature can be used in conjunction with both live camera views as well as static images that have been stored within the camera's memory. In either case, slider 32 has the advantage of permitting the user to easily cycle through a variety of color options .
  • Slider 32 can also be used to navigate through a static or live camera image. For instance, in one mode, movement of the slider shifts the image from right to left. In another mode, movement of the slider shifts the image up and down. Both the vertical and horizontal navigation modes can be used in conjunction with the magnification mode to allow the user to zoom into any portion of the image .
  • housing 40 is pivotally connected to control panel 30.
  • control panel 30 serves as a hinge between cover 20 and housing 40.
  • housing 40 includes an output 52 for coupling camera 10 to an external monitor or television.
  • a power button 50 is also included on the opposite side of housing 40 (note Fig. 3) .
  • the device can further be configured to power itself off when in the closed configuration (Fig. 2c) .
  • the optical components associated with camera 10 are stored within a chamber 42 positioned within camera housing 40. As noted in Figures 3 and 4, these optical components include a sensor 44, a mirror 46, a light source 48, light guides 54, and an optical lens 56.
  • Chamber 42 preferably includes a rounded interior surface that is lightly colored so as to promote reflection.
  • Light source 48 is preferably two rows of light emitting diodes (LEDs) that are mounted to vertical surfaces within the chamber 42. Other light sources, such as cold cathode fluorescent lamps (CCFL) , can be used in conjunction with the invention. Still yet other light sources will be readily identified by those skilled in the art.
  • Light guides are used in directing the light from the LEDs both towards the viewed object and to the interior of chamber 42. A suitable light guide is described in commonly owned U.S. Pat. 7,172,304 to Rodriguez et al . , the contents of which are fully incorporated herein.
  • Sensor 44 is preferably a 3 megapixel CMOS image sensor. Such sensors are commercially available and those of ordinary skill in the art will appreciate suitable equivalents thereto.
  • the output of the image sensor is provided to the FPGA and to an image buffer.
  • chamber 42 is either placed over or pointed towards the object to be viewed.
  • the image of the viewed object is then picked up by mirror 46.
  • Sensor 44 and lens 56 are positioned within chamber 42 so as to record the image reflected by mirror 46.
  • Alignment guides 53 are included on the sides of the housing to assist blind or low vision users in properly orienting the chamber 42 relative to the object to be viewed.
  • the light provided to light guides is also adjustable to permit the selective control of direct and indirect light provided to the object being viewed. Namely, for near objects, such as those viewed in the reading mode, the light from guides 54 is directed into the interior of chamber 42, thereby increasing the amount of indirect lighting used. This is accomplished by directing more light through the upper surfaces 54a of light guides 54. The resulting indirect lighting is preferred for closely positioned objects. By contrast, in the writing and handheld modes, the light will be primarily directed through the lower surface 54b of light guides 54. This results in distant objects being illuminated with more direct lighting, which is preferred in such situations.
  • FIG. 6 The various configurations of camera 10 are described next. These configurations are achieved by pivotally interconnecting housing 40 to both control panel 30 and to base 60. More specifically, the forward end of housing 40 is connected to control panel 30 while the rearward end is connected to base 60. However, in the preferred embodiment, the connection between base 60 and housing 40 permits only a limited degree of angular adjustment.
  • Base 60 is preferably formed from two opposing feet 60a and 60b (note Fig. 6) .
  • a clearance space 62 is provided between feet 60a and 60b so as to permit an unobstructed view of objects by camera 44. Additional clearance space can be created by pivoting housing 40 relative to base 60 as noted more fully hereinafter.
  • a power supply (not shown) is preferably stored within one or both feet 60a and 60b. The power supply can be, for example, a re-chargeable lithium ion battery. Reading Mode
  • the reading mode is depicted in Fig. 1.
  • base 60 rests upon the object being viewed.
  • Both cover 20 and control panel 30 can be angled for optimal viewing by the user. This is the preferred mode for viewing flat objects, such as a page of text, where there is no need for the user to interact with the viewed object.
  • Light guides 54 can be adjusted while in the reading mode to provide more indirect light. Indirect lighting is preferred in the reading mode due to sensor 44 being closer to the viewed object.
  • the writing mode is preferred.
  • the writing mode is illustrated in Figure 6.
  • base 60 again rests upon the object being viewed.
  • base 40 is pivoted slightly with respect to base 60. In the preferred embodiment, this angle is no more than 45 degrees.
  • This angle is no more than 45 degrees.
  • Space 62 allows a user to, for instance, write upon the object being viewed.
  • This mode can be used, for example, if the user wishes to sign a document or fill out a check.
  • the light guides 54 can be adjusted while in the writing mode to provide more direct light. Direct lighting is preferred in the writing mode due to sensor 44 being further away from the viewed object.
  • FIG. 7 The hand-held mode is depicted in Figure 7.
  • cover 20 is pivoted such that its exterior surface contacts base 40.
  • feet 60a and 60b of base are grasped by the user. The permits camera 10 to be picked up and pointed at distant objects.
  • control 34 can be used to take static images of the object "O" being viewed.
  • FIG. 8 and 9 the inspection mode of camera 10 is illustrated in Figures 8 and 9.
  • base 60 is pivoted so that the chamber 42 is pointing towards the user. The allows the user to hold objects "0" in front of the camera for inspection.
  • LCD screen 22 can be positioned in differing orientations while in the inspection mode.

Abstract

Disclosed is a portable magnifier camera that can be selectively positioned into a variety of configurations. At least four distinct viewing configurations are provided: a reading mode wherein the camera rests flatly upon the viewed object; a writing mode wherein the camera rests at an angle upon the viewed object; a hand-held mode wherein the user holds the camera relative to a distant object; and an inspection mode wherein the user holds the viewed object relative to the camera. These configurations enable a user to effectively view objects of differing size and at varying distances.

Description

PORTABLE MULTI POSITION MAGNIFIER CAMERA
BACKGROUND OF THE INVENTION Cross References to Related Applications This application claims benefit of co-pending application serial number 61/085,966 filed on August 4, 2008 and entitled "Portable Multi Position Magnifier Camera." The contents of this application are incorporated herein by reference.
Field of the Invention
[001] This invention relates to a magnification device for individuals with low vision. More particularly, the present invention relates to a portable magnification device that has a variety of discrete configurations .
Description of the Background Art
[002] The use of portable magnifiers for low vision users is known in the art. To date, however, these magnifiers have been heavy, bulky, and cumbersome to use. Additionally, many of these magnifiers have only one mode of operation, a mode that requires the user to hold the device at a fixed distance above the object being viewed. [003] Other magnifiers avoid the need to hold the camera above the object being viewed. Although these magnifiers avoid the need for the device to be held, they can only achieve focus by height adjustments. More specifically, a mechanism must be provided to selectively adjust the height of the magnifying camera relative to the object being viewed. Yet, these adjustment mechanisms tend to be large and complex and yield devices that are not readily transportable .
[004] Additionally, magnifiers that are designed to be placed upon the object to be viewed typically leave little or no room over top of the object. This prohibits the user from interacting with the object being viewed. For instance, if the object is a document, a user cannot write upon the document while it is being magnified.
[005] What is needed, then, is a magnifier with multiple configurations and modes of operation, whereby a user can use the magnifier by either holding the device over the object or by placing the device upon the object. There is an additional need for a magnifier that allows users to interact with the object while it is being magnified. There is also a need in the art for a portable magnifier that has a compact closed orientation that protects the magnifier when it is not in use. The portable multi position magnifier camera of the present invention is directed at fulfilling these needs.
SUMMARY OF THE INVENTION
[006] It is therefore one of the objectives of this invention to allow a user to configure a magnifier camera into one of a variety of viewing modes so as to optimize the viewing of different sized objects at differing distances .
[007] It is another objective of this invention to provide a magnifier camera that can either be held over an object to be viewed or positioned upon the object to be viewed.
[008] It is a further object of this invention to provide a magnifier camera that can be positioned upon an object to be viewed, while at the same time providing a clearance space to permit the user to interact with the object .
[009] It is yet another objective of this invention to provide a magnifier camera that has a closed orientation that is compact and readily transportable and which protects the components of the camera. [010] Another object of this invention is to provide a rheostat-type controller for increasing functionality and ease of use .
[Oil] The foregoing has outlined rather broadly the more pertinent and important features of the present invention in order that the detailed description of the invention that follows may be better understood so that the present contribution to the art can be more fully appreciated. Additional features of the invention will be described hereinafter which form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and the specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the invention as set forth in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:
[0011] Fig. 1 is a perspective view of the magnifier camera of the present invention in a reading mode whereby the magnifier is placed upon an object to be viewed.
[0012] Fig. 2a is a perspective view of the magnifier camera being reconfigured from a reading mode to a closed configuration .
[0013] Fig. 2b is an additional perspective view of the magnifier camera being reconfigured from a reading mode to a closed configuration.
[0014] Fig. 2c is a perspective view of the magnifier camera in the closed configuration.
[0015] Fig. 3 is a detailed view of the underside of the magnifier camera showing the camera and associated mirror .
[0016] Fig. 4 is an exploded view of the lighting chamber of the present invention.
_ C _ [0017] Fig. 5 is a diagram showing how lighting is distributed within the lighting chamber of the present invention.
[0018] Fig. 6 is a perspective view of the magnifier camera in the writing stand mode.
[0019] Fig. 7 is a perspective view of the magnifier camera in the handheld mode.
[0020] Fig. 8 is a perspective view of the magnifier camera in the inspection mode of operation.
[0021] Fig. 9 is a perspective view of the magnifier camera in the inspection mode of operation.
[0022] Similar reference characters refer to similar parts throughout the several views of the drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0023] The present invention relates to portable magnifier camera that can be selectively positioned into a variety of configurations. At least four distinct viewing configurations are provided: a reading mode wherein the camera rests flatly upon the viewed object; a writing mode wherein the camera rests at an angle upon the viewed object; a hand-held mode wherein the user holds the camera relative to a distant object; and an inspection mode wherein the user holds the viewed object in close proximity to the camera. These configurations enable a user to effectively view objects of differing size and at varying distances .
[0024] The camera 10 of the present invention is depicted in Figure 1. The camera 10 includes four housing components that are pivotally interconnected in a manner that provides for multiple discrete configurations. These housing components include a cover 20, a control panel 30, a camera housing 40, and a base 60. These components are preferably constructed from a lightweight impact resistant plastic. An acrylonitrile butadiene styrene (ABS) plastic, or the equivalent, is preferred. [0025] Cover 20 includes an LCD screen 22 that is positioned within its interior face. The inner surface also includes opposing indentations 24 that permit screen 22 to be easily gripped and manipulated by the user. The exterior face of cover 22 serves to protect the various components of camera 10 when it is in a closed configuration (note Fig. 2c) . Screen 22 is preferably a full color video graphics array (VGA) display. The input to the LCD screen 22 comes from a field programmable gate array (FPGA) that resides within camera housing 40. In the preferred embodiment, low-voltage differential signaling
(LVDS) is employed in interconnecting FPGA to LCD screen 22. This renders a purely digital output on screen 22 and also permits camera 10 to be used in conjunction with an external monitor (not shown) .
[0026] Cover 20 is pivotally interconnected to a control panel 30. Control panel 30 includes a centrally located slider 32 as well as adjacent touch sensitive controls 34 and 36. Slider 32 provides for the variable control of one or more camera functions. The variable control can be accomplished via a variable resistor, such as a rheostat, potentiometer, or like equivalents. Control 34 can be used to take "snap shots" of the object being viewed. These static images can be stored in a memory for later viewing. Control 36 can be used to cycle through the modes controlled by slider 32.
[0027] In one mode, slider 32 is used to vary the camera magnification. For instance, by moving slider to the right (as noted in Fig. 1) a user can change the magnification continuously from 3.5x to 14x. In another mode, slider 32 is used to change the color combinations of screen 22. Namely, in order to enhance viewing for low vision users, LCD screen 22 can display the object being viewed in various color combinations, such as blue/green, red/yellow or black/white. Thus, slider 32 can be used to cycle through the various color combinations to find the most effective output for the user. This feature can be used in conjunction with both live camera views as well as static images that have been stored within the camera's memory. In either case, slider 32 has the advantage of permitting the user to easily cycle through a variety of color options .
[0028] Slider 32 can also be used to navigate through a static or live camera image. For instance, in one mode, movement of the slider shifts the image from right to left. In another mode, movement of the slider shifts the image up and down. Both the vertical and horizontal navigation modes can be used in conjunction with the magnification mode to allow the user to zoom into any portion of the image .
[0029] As noted in Figs. 2a-2c, camera housing 40 is pivotally connected to control panel 30. Thus, in effect, control panel 30 serves as a hinge between cover 20 and housing 40. With reference to Figure 1, it will be noted that housing 40 includes an output 52 for coupling camera 10 to an external monitor or television. A power button 50 is also included on the opposite side of housing 40 (note Fig. 3) . The device can further be configured to power itself off when in the closed configuration (Fig. 2c) . [0030] The optical components associated with camera 10 are stored within a chamber 42 positioned within camera housing 40. As noted in Figures 3 and 4, these optical components include a sensor 44, a mirror 46, a light source 48, light guides 54, and an optical lens 56. Chamber 42 preferably includes a rounded interior surface that is lightly colored so as to promote reflection. Light source 48 is preferably two rows of light emitting diodes (LEDs) that are mounted to vertical surfaces within the chamber 42. Other light sources, such as cold cathode fluorescent lamps (CCFL) , can be used in conjunction with the invention. Still yet other light sources will be readily identified by those skilled in the art. Light guides are used in directing the light from the LEDs both towards the viewed object and to the interior of chamber 42. A suitable light guide is described in commonly owned U.S. Pat. 7,172,304 to Rodriguez et al . , the contents of which are fully incorporated herein. Sensor 44 is preferably a 3 megapixel CMOS image sensor. Such sensors are commercially available and those of ordinary skill in the art will appreciate suitable equivalents thereto. The output of the image sensor is provided to the FPGA and to an image buffer.
[0031] In use, chamber 42 is either placed over or pointed towards the object to be viewed. The image of the viewed object is then picked up by mirror 46. Sensor 44 and lens 56 are positioned within chamber 42 so as to record the image reflected by mirror 46. However, the use of other configurations is within the scope of the present invention. Alignment guides 53 are included on the sides of the housing to assist blind or low vision users in properly orienting the chamber 42 relative to the object to be viewed.
[0032] The light provided to light guides is also adjustable to permit the selective control of direct and indirect light provided to the object being viewed. Namely, for near objects, such as those viewed in the reading mode, the light from guides 54 is directed into the interior of chamber 42, thereby increasing the amount of indirect lighting used. This is accomplished by directing more light through the upper surfaces 54a of light guides 54. The resulting indirect lighting is preferred for closely positioned objects. By contrast, in the writing and handheld modes, the light will be primarily directed through the lower surface 54b of light guides 54. This results in distant objects being illuminated with more direct lighting, which is preferred in such situations.
[0033] The various configurations of camera 10 are described next. These configurations are achieved by pivotally interconnecting housing 40 to both control panel 30 and to base 60. More specifically, the forward end of housing 40 is connected to control panel 30 while the rearward end is connected to base 60. However, in the preferred embodiment, the connection between base 60 and housing 40 permits only a limited degree of angular adjustment. Base 60 is preferably formed from two opposing feet 60a and 60b (note Fig. 6) . A clearance space 62 is provided between feet 60a and 60b so as to permit an unobstructed view of objects by camera 44. Additional clearance space can be created by pivoting housing 40 relative to base 60 as noted more fully hereinafter. A power supply (not shown) is preferably stored within one or both feet 60a and 60b. The power supply can be, for example, a re-chargeable lithium ion battery. Reading Mode
[0034] The reading mode is depicted in Fig. 1. In this mode, base 60 rests upon the object being viewed. Both cover 20 and control panel 30 can be angled for optimal viewing by the user. This is the preferred mode for viewing flat objects, such as a page of text, where there is no need for the user to interact with the viewed object. Light guides 54 can be adjusted while in the reading mode to provide more indirect light. Indirect lighting is preferred in the reading mode due to sensor 44 being closer to the viewed object. Writing Mode
[0035] In the event the user needs to interact with the viewed object, the writing mode is preferred. The writing mode is illustrated in Figure 6. In this mode, base 60 again rests upon the object being viewed. However, unlike the reading mode, base 40 is pivoted slightly with respect to base 60. In the preferred embodiment, this angle is no more than 45 degrees. By pivoting base 40 upwardly, a space 62 is created. Space 62 allows a user to, for instance, write upon the object being viewed. This mode can be used, for example, if the user wishes to sign a document or fill out a check. The light guides 54 can be adjusted while in the writing mode to provide more direct light. Direct lighting is preferred in the writing mode due to sensor 44 being further away from the viewed object. Hand-heId Mode
[0036] The hand-held mode is depicted in Figure 7. Here, cover 20 is pivoted such that its exterior surface contacts base 40. Additionally, instead of base 60 resting upon the object to be viewed, feet 60a and 60b of base are grasped by the user. The permits camera 10 to be picked up and pointed at distant objects. During this viewing, control 34 can be used to take static images of the object "O" being viewed. Inspection Mode
[0037] Finally, the inspection mode of camera 10 is illustrated in Figures 8 and 9. In this mode, base 60 is pivoted so that the chamber 42 is pointing towards the user. The allows the user to hold objects "0" in front of the camera for inspection. As noted by Figures 8 and 9, LCD screen 22 can be positioned in differing orientations while in the inspection mode.
[0038] The present disclosure includes that contained in the appended claims, as well as that of the foregoing description. Although this invention has been described in its preferred form with a certain degree of particularity, it is understood that the present disclosure of the preferred form has been made only by way of example and that numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention.

Claims

WHAT IS CLAIMED IS: 1. A display device comprising: a display screen; a control panel for controlling images displayed on the display screen, the control panel including a sliding control and a function key for cycling through a number of different display modes,- the display device including a first display mode wherein the sliding controller is used to change the color scheme of the displayed image, the display device including a second display mode wherein the sliding controller is used to position the image within the display, and the display device including a third display mode wherein the sliding controller is used to enlarge the image.
2. A display device comprising: a display screen; a control panel for controlling images displayed on the display screen, the control panel including a sliding control and a function key for cycling through a number of different display modes.
3. The display device as described in claim 2 wherein at least one display mode is provided and wherein the sliding controller is used to change the color scheme of the displayed image.
4. The display device as described in claim 2 wherein at least one display mode is included and wherein the sliding controller is used to position the image within the display.
5. The display device as described in claim 2 wherein at least one display mode is included and wherein the sliding controller is used to enlarge the image.
6. The display device as described in claim 2 wherein the sliding controller is a rheostat.
7. The display device as described in claim 2 wherein the sliding controller is a potentiometer.
8. The display device as described in claim 5 wherein the sliding controller provides for continuous magnification from 3.5x to 14x.
9. The display device as described in claim 3 wherein the sliding controller is used to cycle through at least two of the following color combinations: blue/green, red/yellow, or black/white.
10. The display device as described in claim 4 wherein another display mode is included and wherein the sliding controller is used to enlarge the image.
11. A magnification device comprising: a magnification camera; a display screen for displaying magnified images; a control panel for controlling images displayed on the display screen, the control panel being pivotally secured to the display screen, the control panel including a sliding control.
12. The magnification device as described in claim 11 wherein at least one display mode is provided and wherein the sliding controller is used to change the color scheme of the displayed image.
13. The magnification device as described in claim 11 wherein at least one display mode is included and wherein the sliding controller is used to position the image within the display.
14. The magnification device as described in claim 11 wherein at least one display mode is included and wherein the sliding controller is used to enlarge the image.
15. A multi position portable camera for magnifying an object, the camera comprising: a cover having exterior and interior surfaces and a liquid crystal display (LED) positioned within the interior surface; a control panel pivotally connected to the cover, the control panel including a sliding control for selectively varying the magnification of the camera,- 87 a camera housing having forward and rearward portions,
88 upper and lower surfaces, the forward portion being
89 pivotalIy connected to the control panel, the camera
90 housing including a chamber formed within its lower
91 surface, the chamber including a partially curved interior,
92 a mirror positioned within the chamber for reflecting the
93 image of the object being magnified, a sensor mounted
94 within the chamber for sensing the image reflected by the
95 mirror, the output of the sensor being viewable on the LCD
96 with the magnification being selected via the sliding
97 control, a light source and an associated light guide being
98 positioned within the chamber, the light guide selectively
99 controlling the amount of light received by the object;
100 a base being pivotally connected to the rearward
101 portion of the camera housing, the base including two feet
102 with a clearance space formed therebetween, wherein the
103 base can be pivoted relative to the camera housing as to
104 orient the object within the clearance space and beneath 105 the chamber.
106
107 16. A magnifier camera comprising:
108 a cover including a display screen; 109 a hinge pivotally connected to the cover;
110 a housing pivotally connected to the hinge, whereby
111 the hinge permits the display screen to be oriented
112 relative to the housing to accommodate the user;
113 a sensor assembly positioned within the housing and
114 adapted to take images of objects positioned beneath the
115 housing, wherein the images are thereafter displayed on the
116 display screen;
117 a base pivotally connected to the housing, wherein a
118 user can selectively pivot the base to thereby properly
119 orient the object relative to the sensor assembly;
120 The magnifier camera as described in claim 2 wherein the
121 hinge includes a sliding control for permitting the user to
122 selectively control the magnification of the image. 123
124 17. The magnifier camera as described in claim 16 wherein
125 the base includes two feet that are separated by a
126 clearance space and wherein the object is adapted to be
127 positioned within the clearance space. 128
129 18. The magnifier camera as described in claim 16 wherein
130 the sensor assembly includes at least one light source and 131 an associated light guide and wherein the light guide
132 controls the amount of light directed to the object. 133
134 19. The magnifier camera as described in claim 16 wherein
135 the sensor assembly includes a mirror and wherein the
136 sensor reads the image reflected from the mirror. 137
138 20. The magnifier camera as described in claim 16 wherein
139 the sensor is positioned within a chamber that is designed
140 to reflect light so as to illuminate the object with
141 indirect lighting. 142
143 21. The camera as described in claim 16 wherein the hinge
144 includes a sliding control for selectively cycling through
145 various color combinations displayed by the display. 146
147 22. The camera as described in claim 16 wherein the signal
148 between the sensor and the display is provided via low
149 voltage differential signaling. 150
151 23. A multiple position portable camera comprising: 152 a cover, a hinge, a housing and a base which are all
153 pivotally interconnected;
154 an image sensor positioned within the housing, and an
155 output display positioned within the cover, whereby the
156 output of the sensor can be viewed in the display;
157 whereby the pivotal interconnection between the cover,
158 hinge, housing and base allow for a closed orientation 159 wherein the cover and base are in facing relation and the
160 display is hidden, a reading orientation wherein the cover
161 is pivoted relative to the base to permit a user to view
162 the screen, a writing mode wherein the cover and base are
163 both pivoted relative to the housing so as to permit
164 objects to be positioned beneath the housing, and a hand
165 held mode wherein the cover is pivoted in facing relation
166 to the housing but with the screen visible. 167
168 24. A camera device for blind or low vision users, the
169 camera device comprising:
170 a camera housing and an interconnected writing stand;
171 a display screen interconnected to the camera housing
172 for viewing images taken by the camera device; 173 the camera device having a first orientation wherein
174 the writing stand is at an angle relative to the camera
175 housing and a second orientation wherein the writing stand
176 and the camera housing are co-planar. 177
178 25. The camera device as described in claim 24 wherein the
179 camera housing is pivotally interconnected to the display
180 screen by way of a control panel. 181
182 26. The camera device as described in claim 25 wherein the
183 writing stand houses a power supply. 184
185 27. The camera device as described in claim 24 wherein
186 alignment guides are formed within the camera housing and
187 writing stand. 188
189 28. The camera device as described in claim 24 wherein the
190 screen can be pivoted to be in facing relation with the
191 camera housing. 192
193 29. The camera device as described in claim 25 wherein the
194 camera is a magnifier camera and wherein a rheostat type
195 control is included on the control panel. 196
197 30. A lighting system for a portable camera, the camera
198 functioning to magnify an object residing in an image
199 plane, the lighting system comprising:
200 an optical chamber adapted to be positioned over the
201 image plane, the optical chamber having a lightly colored
202 internal surface for promoting light reflection, the
203 internal surface including a curved wall, an angled wall 204 and two side walls therebetween, a mirror positioned upon 205 the angled wall for reflecting the image of the object 206 residing in the image plane;
207 a CMOS image sensor positioned within the optical
208 chamber opposite the mirror so as to record the image
209 reflected by the mirror, the output of the image sensor
210 being provided to an output screen by way of a field
211 programmable gate array;
212 a row of light emitting diodes positioned upon each of
213 the side walls of the optical chamber, a light guide with
214 upper and lower surfaces positioned over each row of light 215 emitting diodes, the lower surface being parallel to the
216 image plane and the upper surface being angled with respect
217 to the image plane, the light guides functioning to help
218 control the amount of direct and indirect lighting received
219 by the object, whereby the light guides causes more 220 indirect lighting when the image plane is in close
221 proximity to the optical chamber and more direct lighting
222 when the image plane is further away from the optical 223 chamber.
224
225 31. A lighting system for a portable camera, the lighting
226 system comprising:
227 an optical chamber,-
228 an image sensor positioned within the optical chamber,
229 the output of the image sensor being provided to an output
230 screen;
231 a light source positioned within the optical chamber,
232 a light guide with upper and lower surfaces being
233 operatively coupled to the light source, the light guide
234 functioning to help control the amount of direct and
235 indirect lighting received by an object being magnified. 236
237 32. The lighting system as described in claim 31 wherein
238 the optical chamber includes a lightly colored internal
239 surface for promoting light reflection. 240
241 33. The lighting system as described in claim 31 wherein
242 the optical chamber includes an internal surface with a
243 curved wall, an angled wall, and two side walls
244 therebetween. 245
246 34. The lighting system as described in claim 33 wherein a
247 mirror is positioned upon the angled wall for reflecting
248 the image of the object being magnified. 249
250 35. The lighting system as described in claim 31 wherein
251 the light source is a row of light emitting diodes. 252
253 36. The lighting system as described in claim 31 wherein
254 the light guide causes more indirect lighting when the
255 object being magnified is in close proximity to the optical
256 chamber and more direct lighting when the object being
257 magnified is further away from the optical chamber. 258
- 01 -
259 37. The lighting system as described in claim 31 wherein
260 the sensor is a CMOS image sensor. 261
262 38. The lighting system as described in claim 31 wherein
263 the output of the image sensor is provided to the output
264 screen by way of a field programmable gate array. 265
266 39. A lighting system comprising:
267 an optical chamber with lightly colored curved and
268 angled internal surfaces for promoting light reflection;
269 a camera positioned within the optical chamber, the
270 camera functioning to take the image of an object beneath
271 the optical chamber;
272 a light source and an associated light guide for
273 illuminating the object beneath the optical chamber, the
274 light source and associated light guide being positioned 275 within the optical chamber, the light guide functioning to
276 help control the amount of direct and indirect lighting
277 received by the object beneath the optical chamber.
PCT/US2009/052543 2008-08-04 2009-08-03 Portable multi position magnifier camera WO2010017121A2 (en)

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EP09805389.5A EP2321960B1 (en) 2008-08-04 2009-08-03 Portable multi position magnifier camera
ES09805389T ES2428228T3 (en) 2008-08-04 2009-08-03 Multi-position portable magnification camera
JP2011522135A JP5600676B2 (en) 2008-08-04 2009-08-03 Portable multi-position magnifier camera
CN2009801308869A CN102138321B (en) 2008-08-04 2009-08-03 Portable multi position magnifier camera

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US8596608P 2008-08-04 2008-08-04
US61/085,966 2008-08-04
US12/235,240 US8115831B2 (en) 2008-08-04 2008-09-22 Portable multi position magnifier camera
US12/235,207 US20100026855A1 (en) 2008-08-04 2008-09-22 Portable Multi Position Magnifier Camera
US12/235,182 US8259222B2 (en) 2008-08-04 2008-09-22 Portable multi position magnifier camera
US12/235,240 2008-09-22
US12/235,182 2008-09-22
US12/235,207 2008-09-22

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EP (1) EP2321960B1 (en)
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WO2010017121A3 (en) 2010-04-08
US8259222B2 (en) 2012-09-04
EP2321960B1 (en) 2013-06-19
US20100026855A1 (en) 2010-02-04
CN102138321A (en) 2011-07-27
EP2321960A2 (en) 2011-05-18
ES2428228T3 (en) 2013-11-06
US20100026854A1 (en) 2010-02-04
EP2321960A4 (en) 2012-05-30
CN102138321B (en) 2013-12-11
JP2011530262A (en) 2011-12-15
JP5600676B2 (en) 2014-10-01
US20100027237A1 (en) 2010-02-04
US8115831B2 (en) 2012-02-14

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