Integrating ultraviolet exposure detection devices

• US 6,465,791 B1
• Filed: 03/30/2000
• Issued: 10/15/2002
• Est. Priority Date: 01/30/1998
• Status: Expired due to Term

• Current Assignee: Segan Industries Inc.
• Original Assignee: Segan Industries Inc.
• Inventors: Frankel, David A., Ribi, Hans O.
• Primary Examiner(s): Sugarman, Scott J.
• Assistant Examiner(s): HANIG, RICHARD E
• Application Number:
  US09/539,487
• Time in Patent Office: 929 Days
• Field of Search: 250/372, 250/473.1
• US Class Current: 250/372
• CPC Class Codes: G01J 1/50 using change in colour of an indicator, e.g. actinometer

Abstract

Diyne monomers are used as photochromic agents in devices or formulations. The devices and formulations may be applied to body parts for semi-pemanent attachment at various sites to allow for detection of levels of ultraviolet radiation. Clear films may be placed on eyeglass lenses to detect UV radiation occurring between the lens and the eye.

Claims

1. A method of detecting a plurality of different amounts of UV radiation in association with a body part, said method comprising:

placing on said body part a device comprising areas having differing amounts of a photochromic agent sufficient to change to a detectable color upon exposure to predetermined amounts of UV radiation, wherein said device is semi-permanent being disposable and removable without harm to said body part and said device comprises an elastomeric band or non-elastomeric transparent adherent film.

3. The method according to claim 1 or claim 2, wherein said device is an elastic band.

4. The method according to claim 1 or claim 2, wherein said device is an adherent, transparent tape.

5. The method according to claim 1 or claim 2, wherein said device is a decal.

2. A method of detecting a plurality of different amounts of UV radiation in association with a body part, said method comprising:

placing on said body part a device comprising areas having differing amounts of a photochromic agent sufficient to change to a detectable color upon exposure to predetermined amounts of UV radiation, wherein said device is semi-permanent being removable without harm to said body part, and wherein said device on said body part does not result in untanned portions of skin, being substantially transparent or of sufficiently small dimension.

6. A method of detecting a preselected amount of UV radiation in association with a body part, said method comprising:

placing on said body part a nail polish comprising an amount of photochromic agent sufficient to change to a detectable color upon exposure to a predetermined amount of UV radiation, wherein said composition is semi-permanent, being removable without harm to said body part, and wherein said composition further comprises an adherent plastic or petrolatum.

7. A device for detecting a predetermined amount of UV radiation to which a body part is exposed and placing on said body part comprising:

an adherent substrate and a photochromic agent sufficient to change to a detectable color upon exposure to predetermined amounts of UV radiation, comprising said photochromic agent at a plurality of concentrations in different areas resulting in color changes at different levels of exposure to UV radiation, wherein said device is designed to removably adhere to said body part, said device does not result in untanned portions of the skin, being substantially transparent or of sufficiently small dimension, and said device is disposable.

8. The device according to claim 7, comprising a decal, wherein said photochromic agent is present in a design.

9. The device according to claim 7, wherein said adherent substrate comprises an adhesive layer attached to a non-adhesive layer comprising said photochromic agent.

10. The device according to claim 9, wherein said photochromic agent is impregnated into said non-adhesive layer.

11. The device according to claim 9, wherein said photochromic agent is coated onto said non-adhesive layer.

12. The device according to claim 7, further comprising at least one standard color region for comparison with gradations of color change of said photochromic agent.

13. The device according to claim 7, wherein a portion of said device over said photochromic agent comprises a UV filtering composition.