US871915A - Reflector. - Google Patents
Reflector. Download PDFInfo
- Publication number
- US871915A US871915A US29659906A US1906296599A US871915A US 871915 A US871915 A US 871915A US 29659906 A US29659906 A US 29659906A US 1906296599 A US1906296599 A US 1906296599A US 871915 A US871915 A US 871915A
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- Prior art keywords
- reflector
- rays
- light
- corrugations
- spots
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
Definitions
- This invention relates to improvements in the construction. of light reflectors especially adapted for use in connection with incandescent electric lamps.
- a further object is to produce a reflector having uni ue ornamental effects, there being insuch evices a certain degree of utility in the design or conformation, inasmuch as many of this class ofreflectors are used in displa 'ng goods in store windows and it is deslralile that the reflector should contribute to and harmonize with the artistic or ornaniental eflects producedby the window dis- P y
- my invention as a reflector in the general sha e in front elevation or around .its
- edges 0 a parallelogram, and in cross-section, in the form ofa hood in which the u :per side overhangs the lower ed e, and t e ack is concave conformin to t care of a circle.
- Figure 1 is a front elevational view of my invention in operative osition and in combination with two incan escent electric lamps; Fi 2 is an inside plan viewof the reflector wit out the lamps, and Fig. 3 is a cross-section onthe dotted line shown in Fig. 1, with the lamp V removed.
- A represents generally a reflector constructed in accordance with my invention of any suitmay have a olished refleeting surface or have applied thereto a substance having light reflecting qualities.
- the surface of the reflector On each side of the opening a, the surface of the reflector has spots a a ⁇ , which are plain or flat and in making the reflectors these lain surfaces are so arranged that they will be directly behind the center of the rays of light from the filaments 6 From each of the spots 0, the inner surface of the reflector is formed with series of corrugations (Z ,'a which radiate on curved lines from the spots as centers and most of which extend to the periphery of the reflector.
- This reflector Will be so mounted or hung that the rays of light will be thrown directly upon the objects to be illumined, the an le and general contour of its walls being esigned to contribute to the reflective power of the corrugated surfaces.
- a reflector consisting of a hood-like structure of suitable material, having a central opening to receive a lam attachment, and having the reflecting surace on opposite sides of said opening formed into series of corrugations, the corrugations of each series radiating on curved and slightly diverging lines from a common center.
- a light-reflector consisting of a hoodlike structure, rectangular, in outline, and
Description
PATENTED NOV. 26, 1907. A. D. CURTIS.
REFLECTOR.
APPLICATION FILED mums, 1906.
0.1 m. x. W
AUGUSTUS D. CURTIS, OF CHICAGO, ILLINOIS.
REFLECTOR.
Specification of Letters Patent.
Patented Nov. 26, 1907.
Application filed January 18, 1906. Serial No. 296.599.
To all whom it may concern:
Be it known that I, AUGUSTUS D. CURTIs,
citizen of theUnited States, residing at Chicago, in the county of Cook and State of Illinois,- have invented certain new and useful Improvements in Reflectors, of which the following is a specification. This invention relates to improvements in the construction. of light reflectors especially adapted for use in connection with incandescent electric lamps.
An important object attained through the improvements which form the subject matter of this application for patent is the diffusion of the rays of light so that there are no shadows produced or thrown on the obi'ects illumined by the combined effect of the amps and the reflector.
A further object is to produce a reflector having uni ue ornamental effects, there being insuch evices a certain degree of utility in the design or conformation, inasmuch as many of this class ofreflectors are used in displa 'ng goods in store windows and it is deslralile that the reflector should contribute to and harmonize with the artistic or ornaniental eflects producedby the window dis- P y In' the accompanying drawing I have shown my invention as a reflector in the general sha e in front elevation or around .its
edges 0 a parallelogram, and in cross-section, in the form ofa hood in which the u :per side overhangs the lower ed e, and t e ack is concave conformin to t care of a circle. I do not howeverwish to be understood as limiting myself herein to such general form as the essential features of my invention are applicable to many different shapes ofreflectors.
In the accompanying drawing; Figure 1 is a front elevational view of my invention in operative osition and in combination with two incan escent electric lamps; Fi 2 is an inside plan viewof the reflector wit out the lamps, and Fig. 3 is a cross-section onthe dotted line shown in Fig. 1, with the lamp V removed.
i able material which Referring. to the details of the drawing, A represents generally a reflector constructed in accordance with my invention of any suitmay have a olished refleeting surface or have applied thereto a substance having light reflecting qualities.
(1 is an opening to receive the lamp socket b which, is of any well known construction and has secured thereon incandescent lamps b which have the usual filaments b.
On each side of the opening a, the surface of the reflector has spots a a}, which are plain or flat and in making the reflectors these lain surfaces are so arranged that they will be directly behind the center of the rays of light from the filaments 6 From each of the spots 0, the inner surface of the reflector is formed with series of corrugations (Z ,'a which radiate on curved lines from the spots as centers and most of which extend to the periphery of the reflector.
It will be apparent that as the rays of light from the lamp filaments are pro ected radially on straight lines that such rays will intersectlthe rays reflected from the corrugated surfaces of the reflector, the eflect of which is to break upor difiuse the rays which are r0- jected from the latter. The increase in rilliancy due to the multiplicity of reflectlng concavo-convex surfaces is well known in this art, and it is apparent that I'get the benefit of such results in this invention.
This reflector Will be so mounted or hung that the rays of light will be thrown directly upon the objects to be illumined, the an le and general contour of its walls being esigned to contribute to the reflective power of the corrugated surfaces.
Having thus described my invention, I claim p 1. A reflector consisting of a hood-like structure of suitable material, having a central opening to receive a lam attachment, and having the reflecting surace on opposite sides of said opening formed into series of corrugations, the corrugations of each series radiating on curved and slightly diverging lines from a common center.
2 A light-reflector consisting of a hoodlike structure, rectangular, in outline, and
having its reflecting 'surface formed with one or more substantially flat spots and with corrugations radiating from said spots on curved and diverging lines extending to the margins of the structure, the depth of said corrugations being substantially the same throughout their length. 1
In testimony whereof I aflix my signature in presence of two witnesses.
AUGUSTUS D. CURTIS.
Witnesses F. BENJAMIN, WM. B. Moon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29659906A US871915A (en) | 1906-01-18 | 1906-01-18 | Reflector. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29659906A US871915A (en) | 1906-01-18 | 1906-01-18 | Reflector. |
Publications (1)
Publication Number | Publication Date |
---|---|
US871915A true US871915A (en) | 1907-11-26 |
Family
ID=2940362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US29659906A Expired - Lifetime US871915A (en) | 1906-01-18 | 1906-01-18 | Reflector. |
Country Status (1)
Country | Link |
---|---|
US (1) | US871915A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040001345A1 (en) * | 2002-06-29 | 2004-01-01 | Lee Sang-Duk | Illuminating apparatus, backlight assembly and liquid crystal display device having the same |
US20040264201A1 (en) * | 2003-06-30 | 2004-12-30 | Guide Corporation, A Delaware Corporation | Chromatic effect using light sources and condensing lenses |
-
1906
- 1906-01-18 US US29659906A patent/US871915A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040001345A1 (en) * | 2002-06-29 | 2004-01-01 | Lee Sang-Duk | Illuminating apparatus, backlight assembly and liquid crystal display device having the same |
US7021813B2 (en) * | 2002-06-29 | 2006-04-04 | Samsung Electronics Co., Ltd. | Backlight assembly for liquid crystal display device having diffusive reflector |
US20040264201A1 (en) * | 2003-06-30 | 2004-12-30 | Guide Corporation, A Delaware Corporation | Chromatic effect using light sources and condensing lenses |
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