WO1996010165B1 - Ultraviolet exposure detection apparatus - Google Patents
Ultraviolet exposure detection apparatusInfo
- Publication number
- WO1996010165B1 WO1996010165B1 PCT/US1995/013054 US9513054W WO9610165B1 WO 1996010165 B1 WO1996010165 B1 WO 1996010165B1 US 9513054 W US9513054 W US 9513054W WO 9610165 B1 WO9610165 B1 WO 9610165B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- indication
- detector
- solar
- energy
- fibers
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 claims abstract 24
- 239000000835 fiber Substances 0.000 claims abstract 18
- 238000006243 chemical reaction Methods 0.000 claims abstract 3
- 238000012512 characterization method Methods 0.000 claims 8
- 230000003595 spectral effect Effects 0.000 claims 8
- 238000000034 method Methods 0.000 claims 6
- 231100000430 skin reaction Toxicity 0.000 claims 3
- 239000004973 liquid crystal related substance Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- MXBCYQUALCBQIJ-RYVPXURESA-N (8s,9s,10r,13s,14s,17r)-13-ethyl-17-ethynyl-11-methylidene-1,2,3,6,7,8,9,10,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-ol;(8r,9s,13s,14s,17r)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6h-cyclopenta[a]phenanthrene-3,17-diol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1.C1CC[C@@H]2[C@H]3C(=C)C[C@](CC)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 MXBCYQUALCBQIJ-RYVPXURESA-N 0.000 claims 1
- 230000003213 activating effect Effects 0.000 claims 1
- 230000036555 skin type Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract 3
- 206010042496 Sunburn Diseases 0.000 abstract 1
Abstract
An ultraviolet radiation exposure detection system (240) determines either ultraviolet flux or accumulated ultraviolet energy. A detector (242) converts the ultraviolet radiation into voltage, and a voltage-to-frequency converter (243) provides a corresponding frequency. If the system measures flux, a conversion subsystem converts the frequency to an associated ultraviolet flux in watts. If the sensor measures ultraviolet energy over a period of time, a counter (244) counts at the frequency of the voltage-to-frequency converter thereby integrating the received ultraviolet energy at the detector. A reset button allows the user to reset the system, clearing the counter, prior to entering the sun for the day. A warning light, display (245), or buzzer indicates to the user of the system that her skin is in danger of receiving a sun burn. A plurality of fibers and/or lambertian half-spheres are used to provide substantially uniform solar acceptance. A solar cell (250) can be used to power the apparatus, especially within a watch configuration.
Claims
1. Apparatus for determining the accumulated exposure to ultraviolet radiation, comprising:
detector means for sensing ultraviolet radiation and for producing a voltage proportionate to the radiation, said detector means having a spectral response characterization;
ultraviolet filter means for compensating said spectral response characterization to substantially represent human skin response characteristics;
energy-to-frequency converter means for converting said voltage to a corresponding frequency;
counter means for counting at said frequency; and
indication means for communicating at least an indication of a value counted to by said counter means to a user of the apparatus.
2. Apparatus according to claim 1 wherein said indication means is selected from the group consisting essentially of a liquid crystal display, a light emitting diode, a piezoelectric buzzer, a tactile sensor, and mixtures thereof.
3. Apparatus according to claim 1. further comprising reset means for resetting said counter means to a zero value selectively.
4. Apparatus according to claim 1. further comprising a wrist- watch, said apparatus being arranged substantially within said wrist-watch wherein said indication means is visible to a wearer of said wrist-watch.
5. Apparatus according to claim 1. further comprising battery means for providing energy to said apparatus.
6. Apparatus according to claim 4. further comprising LCD display means for displaying the time-of-day. and toggle means for displaying a value of said counter means on said LCD display selectively.
7. Apparatus according to claim 1 wherein said indication means comprises a LCD display, further comprising a conversion subsystem for converting a count value of said O 96/10165 PCMJS95/13054
20 counter means into UV energy and for displaying said UV energy on said LCD display selectively.
8. Apparatus according to claim 1. further comprising ultraviolet filter means for altering the spectrum of said ultraviolet radiation selectively.
9. Apparatus according to claim 1 wherein said detector means has a spectral response characterization, further comprising ultraviolet filter means for compensating for said spectral response characterization selectively.
10. Apparatus according to claim 1 , further comprising means for selecting at least one skin type setting associated with a count of said counter means wherein said indication means provides an indication to a user of the apparatus that said count is attained.
1 1. Apparatus according to claim 1 , further comprising memory means for storing at least a value representative of UV energy stored from one day, and computational module means for determining that said representative value is within approximately 50% of a maximum preselected UV exposure value.
12. Apparatus according to claim 1 1. further comprising (i) reset means for resetting said counter means to a zero value and (ii) means for activating said indication means when said reset means is activated if said representative value is within 50% of said maximum preselected UV exposure value.
13. Apparatus according to claim 1. further comprising one or more lambertian-like half-spheres, each of the half-spheres providing a more uniform solar acceptance to solar energy impinging onto the detector means.
14. Apparatus according to claim 13, further comprising a plurality of UV- transmitting fibers, each of the fibers relaying energy scattered from within the half- sphere to the detector means.
15. Apparatus according to claim 1. wherein the energy-to-frequency converter means comprises a voltage-to-frequency converter.
16. Apparatus according to claim 1. further comprising a plurality of UV-transmitting fibers, the fibers arranged to receive solar radiation at differing angles relative to a surface normal of the detector, the fibers providing a more uniform solar acceptance to solar energy impinging onto the apparatus. 21
17. Apparatus according to claim 1. further comprising a wrist- watch, said detector means, energy-to-frequency converter means, counter means and indication means being arranged substantially within said wrist-watch wherein said indication means is visible to a wearer of said wrist-watch along a viewing axis, and further comprising a plurality of UV -transmitting fibers, the fibers arranged to receive solar radiation at differing angles relative to the viewing axis, the fibers providing a more uniform solar acceptance to solar energy impinging onto the apparatus.
18. Apparatus according to claim 1. further comprising a solar cell connected to view the ultraviolet radiation and to power the apparatus.
19. Low power UV sensing watch apparatus for communciating ultraviolet radiation exposure to a user of the watch , comprising:
detector means for sensing ultraviolet radiation and for producing a signal proportionate to the radiation, the detector means being a photovoltaic device for drawing substantially zero power; and
energy-to-frequency converter means for converting said signal to a corresponding frequency, the energy-to-frequency converter means being an integrated circuit and drawing negligible power within a watch circuitry.
20. Apparatus according to claim 19. further comprising counter means for counting at said frequency.
21. Apparatus according to claim 19. further comprising indication means for communicating at least an indication of a value counted to by said counter means to a user of the apparatus.
22. Apparatus according to claim 19. further comprising conversion module means for converting said frequency into watts.
23. Apparatus according to claim 19 wherein said indication means is selected from the group consisting essentially of a liquid crystal display, a light emitting diode, a piezoelectric buzzer, a tactile sensor, and mixtures thereof.
24. A method for determining ultraviolet radiation exposure and for communicating that exposure to an individual, comprising the steps of: 22
sensing ultraviolet radiation with a detector having a spectral response characterization and producing a signal proportionate to said radiation;
compensating said spectral response characterization to substantially represent human skin response characteristics;
converting said signal to a corresponding frequency;
counting at said frequency; and
communicating at least an indication of a value counted to by said counter means to the individual.
25. A method according to claim 24. further comprising the steps of storing a count from one day and counting from said stored count on a following day.
26. A method according to claim 24. further comprising the step of warning the individual when said value reaches a preselected level.
27. A method according to claim 24. further comprising the step of sensing the ultraviolet radiation through one or more lambertian-like half-spheres, each of the half- spheres arranged to provide a more uniform solar acceptance to solar energy impinging onto the detector means.
28. A method according to claim 27, further comprising the step of a sensing the ultraviolet radiation through a plurality of UV-transmitting fibers, each of the fibers relaying energy scattered from within the half-sphere to the detector means.
29. A method according to claim 24. further comprising the step of sensing the ultraviolet radiation through a plurality of UV-transmitting fibers, the fibers arranged to receive solar radiation at differing angles relative to a surface normal of the detector, the fibers providing a more uniform solar acceptance to solar energy impinging onto the apparatus.
30. Apparatus for determining the accumulated exposure to ultraviolet radiation, comprising: 23 detector means for sensing ultraviolet radiation and for producing a signal proportionate to the radiation;
energy-to-frequency converter means for converting said signal to a corresponding frequency;
counter means for counting at said frequency;
means for providing a more uniform solar acceptance to solar energy impinging onto the detector means; and
indication means for communicating at least an indication of a value counted to by said counter means to a user of the apparatus.
31. Apparatus according to claim 30 wherein said detector means has a spectral response characterization, further comprising ultraviolet filter means for compensating for said spectral response characterization selectively to substantially represent human skin response characteristics.
32. Apparatus according to claim 30, wherein the means for providing a more uniform solar acceptance to solar energy impinging onto the detector means comprises one or more lambertian-like half-spheres.
33. Apparatus according to claim 32, further comprising a plurality of UV- transmitting fibers, each of the fibers relaying energy scattered from within the half- sphere to the detector means.
34. Apparatus according to claim 30, wherein the means for providing a more uniform solar acceptance to solar energy impinging onto the detector means comprises a plurality of UV-transmitting fibers, the fibers arranged to receive solar radiation at differing angles relative to a surface normal of the detector means.
35. Apparatus according to claim 30. further comprising a wrist- watch, said detector means, energy-to-frequency converter means, counter means and indication means being constructed and arranged substantially within said wrist- watch wherein said indication means is visible to a wearer of said wrist-watch along a viewing axis, said means for providing a more uniform solar acceptance to solar energy impinging onto the detector means being constructed and arranged to receive solar radiation at differing angles relative to 24 the viewing axis, thereby providing a more uniform solar acceptance to solar energy impinging onto the apparatus.
36. In a wristwatch, the improvement comprising:
detector means for sensing ultraviolet radiation and for producing a voltage proportionate to the radiation;
voltage-to-frequency converter means for converting said voltage to a corresponding frequency;
counter means for counting at said frequency;
battery means for providing energy to said wristwatch; and
indication means for communicating at least an indication of an accumulated exposure of ultraviolet radiation to a user of the wristwatch.
25
STATEMENT UNDER ARTICLE 19
Further to our receipt of the International Search Report dated 08 February 1996, we enclose a new set of claims (6 sheets) to replace the original claims and to further clarify the invention. A new abstract (1 sheet) is also enclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU39541/95A AU3954195A (en) | 1994-09-28 | 1995-09-27 | Ultraviolet exposure detection apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31422794A | 1994-09-28 | 1994-09-28 | |
| US08/314,227 | 1994-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1996010165A1 WO1996010165A1 (en) | 1996-04-04 |
| WO1996010165B1 true WO1996010165B1 (en) | 1996-07-18 |
Family
ID=23219110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1995/013054 WO1996010165A1 (en) | 1994-09-28 | 1995-09-27 | Ultraviolet exposure detection apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5686727A (en) |
| AU (1) | AU3954195A (en) |
| WO (1) | WO1996010165A1 (en) |
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-
1995
- 1995-09-27 WO PCT/US1995/013054 patent/WO1996010165A1/en active Application Filing
- 1995-09-27 US US08/534,546 patent/US5686727A/en not_active Expired - Fee Related
- 1995-09-27 AU AU39541/95A patent/AU3954195A/en not_active Abandoned
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