WO2007004125A2 - Apparatus for preventing visual impairment - Google Patents

Apparatus for preventing visual impairment Download PDF

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Publication number
WO2007004125A2
WO2007004125A2 PCT/IB2006/052120 IB2006052120W WO2007004125A2 WO 2007004125 A2 WO2007004125 A2 WO 2007004125A2 IB 2006052120 W IB2006052120 W IB 2006052120W WO 2007004125 A2 WO2007004125 A2 WO 2007004125A2
Authority
WO
WIPO (PCT)
Prior art keywords
user
screen
looking
time
receiver
Prior art date
Application number
PCT/IB2006/052120
Other languages
French (fr)
Other versions
WO2007004125A3 (en
Inventor
Raymond Butcher
Original Assignee
Raymond Butcher
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 Raymond Butcher filed Critical Raymond Butcher
Publication of WO2007004125A2 publication Critical patent/WO2007004125A2/en
Publication of WO2007004125A3 publication Critical patent/WO2007004125A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013—Eye tracking input arrangements

Definitions

  • the present invention relates to an apparatus for minimising the risk of visual impairment, especially when using computers.
  • CVS Computer Vision Syndrome
  • a solution to the problem is for a VDU operator to take breaks before the onset of CVS. It has been proposed that a break of five minutes in every thirty minutes is acceptable.
  • This invention seeks to provide a solution to this problem.
  • an apparatus for preventing visual impairment comprising: a) a component for fitment to the head of the user - said head component having a transmitter to transmit a signal in the direction in which the user is looking, and b) a receiver component adapted to be placed adjacent to the user's computer screen - said receiver component receiving signals from the head component only when the user is looking at the screen, and said receiver component generating a warning signal when the user has been looking at the screen for more than a predetermined period of time.
  • the head component is adapted to engage with the ear of the user.
  • the receiver component is adapted to engage with the top edge of a computer screen.
  • the receiver component Preferably, the receiver component generates a warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a predetermined value.
  • the receiver component Preferably, the receiver component generates a first warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a first predetermined value.
  • the receiver component Preferably, the receiver component generates a second warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a second predetermined value.
  • the safety factor is about 6.
  • the receiver includes a first counter to count the time a signal is received representing the time the user is looking at the screen to provide a first time value, a second counter to count the time multiplied by a safety factor a signal is not received representing the time the user is not looking at the screen to provide a second time value, and the means to compare the first time value with the second time value and generate a first warning signal when a first predetermined value is exceeded and generate a second warning signal when a second predetermined value is exceeded.
  • the receiver includes visual and/or audible warning signals.
  • first and second warning signals are generated by first and second lights, such as light emitting diodes (LEDs), on a receiver housing.
  • first and second lights such as light emitting diodes (LEDs)
  • Third and fourth lights may also be provided to indicate when the user is looking at the screen, or not, respectively.
  • Figure 1 shows a schematic perspective view of the apparatus with a computer
  • Figure 2 shows a schematic perspective view of the apparatus
  • Figure 3 shows a schematic flow chart for the receiver.
  • FIG. 1 there is shown an apparatus (1 ) for preventing visual impairment when using a computer with screen (X).
  • the apparatus has a head component (10) to engage with the ear on the head of the user.
  • the head component may be similar to the Bluetooth ear piece used with mobile telephones.
  • the head component has a narrow infra-red beam (12) aimed in the direction in which the user is looking.
  • a receiver component (20) has a housing (21 ) adapted to be placed on the top edge of the computer screen. The receiver component receives the transmitted infra-red signals from the head component only when the user is looking at the screen.
  • the receiver component generates a warning signal when the user has been looking at the screen for a time period more than a predetermined time as described more fully below.
  • Housing (21 ) has a receiver (22) to receive the transmitted infra-red signals from the head component only when the user is looking at the screen. Inside the housing is an electronic circuit (23) connected to the receiver and four LEDs (24, 25, 26 and 27).
  • LED 24 representing the user is working, is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the VDU.
  • LED 25 representing the user is not working, is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. the user is not looking at the VDU.
  • LED 26 is illuminated as a first warning signal by the electronic circuit when the user is coming close to a time when he or she has been looking at the VDU for too long. If the user takes a rest at this point (i.e. looks away from the screen), LED 26 will extinguish.
  • LED 27 is illuminated as a second warning signal by the electronic circuit when the user has been looking too long at the VDU, and must take a rest. If the user takes a rest at this point (i.e. looks away from the screen), LED 27 will extinguish, and LED 26 will illuminate and eventually extinguish.
  • the electronic circuit operates as shown in the flow diagram of Figure 3.
  • the electronic circuit operates on the basis that the user should rest from looking at the screen for 1/6 th of the time spent looking at the screen, i.e. 10 minutes in any one hour.
  • a sensor senses when the receiver is receiving an infra-red signal from the head component.
  • LED 24 is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the screen.
  • a counter is provided to count the resultant time a signal is received representing the time the user is looking at the screen, actively allowing for the recommended rest period.
  • LED 25 is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. when the user is not looking at the screen.
  • a second counter is provided to count the time, multiplied by a safety factor, a signal is not received, representing the time the user is not looking at the screen, to provide a second time value.
  • a comparator compares the first time value and the second time value and generates a first warning signal by illuminating LED 26 when a first predetermined value representing 15 minutes is exceeded, and generates a second warning signal by illuminating LED 27 when a second predetermined value representing 30 minutes is exceeded.
  • the receiver thus generates a first and second warning signal when on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen exceeds a predetermined value of first 15 minutes, and then 30 minutes.
  • the user could look at the screen for 10 minutes and then look away from the screen for 2 minutes, and the comparator and counter would register a time value of zero, which represents a condition of minimal risk. It is only when, on an accumulated basis, the amount of time looking at the screen exceeds a predetermined value that the warning LEDs illuminate.
  • the invention may take a form different to that specifically described above.
  • the safety factor could be a different value, or it could be a variable factor to adjust the apparatus for more, or less, sensitive eyes.
  • the receiver could give out audible signals as well as, or instead of, visual signals.
  • the receiver could include a simpler electronic circuit which gives out a warning signal simply after the user has been looking at the screen for more than a predetermined period or time.
  • the apparatus of the invention may have applications for preventing visual impairment in other situations or other visual displays, e.g. people who need to read for long periods of time, children playing computer games (where a game could be programmed to suspend or save for later resumption), or simply watching TV, etc.
  • the hardware electronic circuit functionality could be replaced by a software program.

Abstract

a) a component for fitment to the head of the user - said head component having a transmitter to transmit a signal in the direction in which the user is looking, and b) a receiver component adapted to be placed adjacent to the user's computer screen - said receiver component receiving signals from the head component only when the user is looking at the screen, and said receiver component generating a warning signal when the user has been looking at the screen for more than a predetermined period of time. The apparatus of the invention may have applications for preventing visual impairment in other situations e.g. people who need to read for long periods of time, children playing computer games (where a game could be programmed to suspend or save for later resumption), or simply watching TV, etc.

Description

Title: Apparatus for Preventing Visual Impairment
The present invention relates to an apparatus for minimising the risk of visual impairment, especially when using computers.
It is well known that people looking at a VDU for long periods of time each day, such as in a work environment, can suffer visual impairment. The condition has been referred to as "Computer Vision Syndrome" (CVS) by the American Optometric Association. CVS includes many symptoms, either singly or in combination, including temporary myopia, eye strain and fatigue, blurred vision, dry irritated or watery eyes, increased sensitivity to light, headaches, etc.
A solution to the problem is for a VDU operator to take breaks before the onset of CVS. It has been proposed that a break of five minutes in every thirty minutes is acceptable.
Whilst many people are aware of the benefit of taking breaks, most people do not take breaks which pre-emt the risk of CVS. This may be due, at least in part, because there is no indicator or measurement device to tell users when to take a break, and so to train users to habitually take appropriate breaks, or to change their working routine and stagger their exposure to their VDU during the work period.
This invention seeks to provide a solution to this problem.
According to the present invention there is provided an apparatus for preventing visual impairment, especially when using computers, comprising: a) a component for fitment to the head of the user - said head component having a transmitter to transmit a signal in the direction in which the user is looking, and b) a receiver component adapted to be placed adjacent to the user's computer screen - said receiver component receiving signals from the head component only when the user is looking at the screen, and said receiver component generating a warning signal when the user has been looking at the screen for more than a predetermined period of time.
Preferably, the head component is adapted to engage with the ear of the user.
Preferably, the receiver component is adapted to engage with the top edge of a computer screen.
Preferably, the receiver component generates a warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a predetermined value.
Preferably, the receiver component generates a first warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a first predetermined value.
Preferably, the receiver component generates a second warning signal when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a second predetermined value.
Preferably, the safety factor is about 6.
Preferably, the receiver includes a first counter to count the time a signal is received representing the time the user is looking at the screen to provide a first time value, a second counter to count the time multiplied by a safety factor a signal is not received representing the time the user is not looking at the screen to provide a second time value, and the means to compare the first time value with the second time value and generate a first warning signal when a first predetermined value is exceeded and generate a second warning signal when a second predetermined value is exceeded.
Preferably, the receiver includes visual and/or audible warning signals.
In one embodiment the first and second warning signals are generated by first and second lights, such as light emitting diodes (LEDs), on a receiver housing. Third and fourth lights may also be provided to indicate when the user is looking at the screen, or not, respectively.
An embodiment of the invention will now be described with reference to the accompanying drawings in which:
• Figure 1 shows a schematic perspective view of the apparatus with a computer
• Figure 2 shows a schematic perspective view of the apparatus, and
• Figure 3 shows a schematic flow chart for the receiver.
Referring to Figures 1 and 2, there is shown an apparatus (1 ) for preventing visual impairment when using a computer with screen (X).
The apparatus has a head component (10) to engage with the ear on the head of the user. The head component may be similar to the Bluetooth ear piece used with mobile telephones. The head component has a narrow infra-red beam (12) aimed in the direction in which the user is looking. A receiver component (20) has a housing (21 ) adapted to be placed on the top edge of the computer screen. The receiver component receives the transmitted infra-red signals from the head component only when the user is looking at the screen. The receiver component generates a warning signal when the user has been looking at the screen for a time period more than a predetermined time as described more fully below.
Housing (21 ) has a receiver (22) to receive the transmitted infra-red signals from the head component only when the user is looking at the screen. Inside the housing is an electronic circuit (23) connected to the receiver and four LEDs (24, 25, 26 and 27).
LED 24, representing the user is working, is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the VDU.
LED 25, representing the user is not working, is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. the user is not looking at the VDU.
LED 26 is illuminated as a first warning signal by the electronic circuit when the user is coming close to a time when he or she has been looking at the VDU for too long. If the user takes a rest at this point (i.e. looks away from the screen), LED 26 will extinguish.
LED 27 is illuminated as a second warning signal by the electronic circuit when the user has been looking too long at the VDU, and must take a rest. If the user takes a rest at this point (i.e. looks away from the screen), LED 27 will extinguish, and LED 26 will illuminate and eventually extinguish.
The electronic circuit operates as shown in the flow diagram of Figure 3.
The electronic circuit operates on the basis that the user should rest from looking at the screen for 1/6th of the time spent looking at the screen, i.e. 10 minutes in any one hour.
A sensor senses when the receiver is receiving an infra-red signal from the head component. LED 24 is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the screen. A counter is provided to count the resultant time a signal is received representing the time the user is looking at the screen, actively allowing for the recommended rest period.
LED 25 is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. when the user is not looking at the screen. A second counter is provided to count the time, multiplied by a safety factor, a signal is not received, representing the time the user is not looking at the screen, to provide a second time value.
A comparator compares the first time value and the second time value and generates a first warning signal by illuminating LED 26 when a first predetermined value representing 15 minutes is exceeded, and generates a second warning signal by illuminating LED 27 when a second predetermined value representing 30 minutes is exceeded.
The receiver thus generates a first and second warning signal when on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen exceeds a predetermined value of first 15 minutes, and then 30 minutes.
It will be appreciated that, for example, the user could look at the screen for 10 minutes and then look away from the screen for 2 minutes, and the comparator and counter would register a time value of zero, which represents a condition of minimal risk. It is only when, on an accumulated basis, the amount of time looking at the screen exceeds a predetermined value that the warning LEDs illuminate.
The invention may take a form different to that specifically described above. For example, the safety factor could be a different value, or it could be a variable factor to adjust the apparatus for more, or less, sensitive eyes. The receiver could give out audible signals as well as, or instead of, visual signals.
The receiver could include a simpler electronic circuit which gives out a warning signal simply after the user has been looking at the screen for more than a predetermined period or time.
The apparatus of the invention may have applications for preventing visual impairment in other situations or other visual displays, e.g. people who need to read for long periods of time, children playing computer games (where a game could be programmed to suspend or save for later resumption), or simply watching TV, etc.
The hardware electronic circuit functionality could be replaced by a software program.
There is also the possibility that the input devices, such as the keyboard and pointing device, could be temporarily disabled, or that a Screensaver be activated when there is a need for a rest.

Claims

Claims
1. An apparatus for preventing visual impairment comprising a component for fitment to the head of the user (said head component having a transmitter to transmit a signal in the direction in which the user is looking), and a receiver component receiving signals from the head component only when the user is looking at the screen, and said receiver component generating a warning when the user has been looking at the screen for more than a predetermined period of time.
2. The screen may be that of a computer, game station/console, television, or simply any object of continual fixed-focus activity.
3. The head component is adapted to engage with the ear of the user, but may be attached to a cap, hat, hair-band, etc.
4. The receiver component is adapted to engage with, or simply rest on, the top edge of the screen, but may be incorporated into the screen housing.
5. The receiver component generates a warning when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a predetermined value.
6. The receiver component generates a first warning when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a first predetermined value.
7. The receiver component generates a second warning when, on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen, exceeds a second predetermined value.
8. The safety factor is about 6.
9. The warning may be visual and/or audible.
10. The consequences of ignoring the warning may be none, or input/output devices may be disabled and work (or games) saved for later resumption.
1 1. The receiver includes a first counter to count the time a signal is received representing the time the user is looking at the screen to provide a first time value, a second counter to count the time multiplied by a safety factor a signal is not received representing the time the user is not looking at the screen to provide a second time value, and the means to compare the first time value with the second time value and generate a first warning signal when a first predetermined value is exceeded and generate a second warning signal when a second predetermined value is exceeded.
12. In one embodiment the first and second warning signals are generated by first and second lights, such as light emitting diodes (LEDs), on a receiver housing, third and fourth lights may also be provided to indicate when the user is looking at the screen, or not, respectively.
13. Referring to Figures 1 and 2, there is shown an apparatus (1 ) for preventing visual impairment when using a computer with screen (X).
14. The apparatus has a head component (10) to engage with the ear on the head of the user - the head component may be similar to the Bluetooth ear piece used with mobile telephones.
15. The head component has a narrow infra-red beam (12) aimed in the direction in which the user is looking.
16. A receiver component (20) has a housing (21 ) adapted to be placed on the top edge of the computer screen, the receiver component receives the transmitted infra-red signals from the head component only when the user is looking at the screen - the receiver component generates a warning signal when the user has been looking at the screen for a time period more than a predetermined time as described more fully below.
17. Housing (21 ) has a receiver (22) to receive the transmitted infra-red signals from the head component only when the user is looking at the screen and inside the housing is an electronic circuit (23) connected to the receiver and four LEDs (24, 25, 26 and 27).
18. LED 24, representing the user is working, is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the screen.
19. LED 25, representing the user is not working, is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. the user is not looking at the screen.
20. LED 26 is illuminated as a first warning signal by the electronic circuit when the user is coming close to a time when he or she has been looking at the screen for too long and if the user takes a rest at this point (i.e. looks away from the screen), LED 26 will extinguish.
21. LED 27 is illuminated as a second warning signal by the electronic circuit when the user has been looking too long at the screen, and must take a rest and if the user takes a rest at this point (i.e. looks away from the screen), LED 27 will extinguish, and LED 26 will illuminate and eventually extinguish.
22. The electronic circuit operates as shown in the flow diagram of Figure 3.
23. The electronic circuit operates on the basis that the user should rest from looking at the screen for 1/6th of the time spent looking at the screen, i.e. 10 minutes in any one hour.
24. A sensor senses when the receiver is receiving an infra-red signal from the head component and LED 24 is illuminated by the electronic circuit when the receiver is receiving an infra-red signal from the head component, i.e. when the user is looking at the screen, and a counter is provided to count the resultant time a signal is received representing the time the user is looking at the screen, actively allowing for the recommended rest period.
25. LED 25 is illuminated by the electronic circuit when the receiver is not receiving an infra-red signal from the head component, i.e. when the user is not looking at the screen, and a second counter is provided to count the time, multiplied by a safety factor, a signal is not received, representing the time the user is not looking at the screen, to provide a second time value.
26. A comparator compares the first time value and the second time value and generates a first warning signal by illuminating LED 26 when a first predetermined value representing 15 minutes is exceeded, and generates a second warning signal by illuminating LED 27 when a second predetermined value representing 30 minutes is exceeded.
27. The receiver thus generates a first and second warning signal when on an accumulated basis the time the user has been looking at the screen, less the time multiplied by a safety factor the user has not been looking at the screen exceeds a predetermined value of first 15 minutes, and then 30 minutes.
28. It will be appreciated that, for example, the user could look at the screen for 10 minutes and then look away from the screen for 2 minutes, and the comparator and counter would register a time value of zero, which represents a condition of minimal risk - it is only when, on an accumulated basis, the amount of time looking at the screen exceeds a predetermined value that the warning LEDs illuminate.
29. The hardware electronic receiver circuit functionality could be replaced by a software program.
PCT/IB2006/052120 2005-07-02 2006-06-27 Apparatus for preventing visual impairment WO2007004125A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0513637.9 2005-07-02
GB0513637A GB2427952B (en) 2005-07-02 2005-07-02 Apparatus for preventing visual impairment

Publications (2)

Publication Number Publication Date
WO2007004125A2 true WO2007004125A2 (en) 2007-01-11
WO2007004125A3 WO2007004125A3 (en) 2007-08-09

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WO (1) WO2007004125A2 (en)

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CN104679491A (en) * 2013-11-29 2015-06-03 上海斐讯数据通信技术有限公司 Method and electronic device for controlling electronic device use time for user
CN112492361A (en) * 2020-11-26 2021-03-12 安徽国广数字科技有限公司 Set-top box with intelligence-developing game anti-addiction system

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CN103400476B (en) * 2013-07-30 2016-04-20 步步高教育电子有限公司 A kind of sitting posture prompting method and device

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CN112492361A (en) * 2020-11-26 2021-03-12 安徽国广数字科技有限公司 Set-top box with intelligence-developing game anti-addiction system

Also Published As

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GB0513637D0 (en) 2005-08-10
GB2427952A (en) 2007-01-10
WO2007004125A3 (en) 2007-08-09
GB2427952B (en) 2010-09-01

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