Claims
- 1. Apparatus for reproducing an image, comprising:
- a light source for emitting pulses of visible light;
- a substrate;
- an image including an infrared producing layer on said substrate, an image portion of said image producing layer responsive to said light source for converting said pulses of visible light into infrared light;
- an image forming layer responsive to said infrared light to develop at least one portion of said image forming layer; and
- means in said image portion of said infrared image producing layer for forming an infrared image not visible to an unaided eye.
- 2. The apparatus of claim 1, wherein the image forming layer further comprises:
- image forming means developed by infrared light from said image portion for reproducing said image.
- 3. Apparatus for reproducing an image, comprising:
- a visible light source;
- an image responsive to said light source for converting said visible light into infrared light;
- an image forming layer responsive to said infrared light to develop at least one portion of said image forming layer;
- a substrate supporting said image; and
- layer means on said substrate covering said image for obscuring said image until developed.
- 4. The apparatus of claim 3, wherein said image forming layer further comprises:
- infrared light detector means for converting infrared light into electrical signals for developing said at least one portion of said image forming layer.
- 5. The apparatus of claim 4, wherein said source further comprises:
- scanning means mounted for motion with respect to said image for emitting pulses of visible light.
- 6. The apparatus of claim 4, wherein said infrared light detector means is mounted for motion with said scanning means.
Parent Case Info
This is a continuation of prior application Ser. No. 598,266, filed on Oct. 16, 1990, which issued as U.S. Pat. No. 5,151,595 on Sep. 24, 1992.
US Referenced Citations (57)
Foreign Referenced Citations (1)
Number |
Date |
Country |
61-4362 |
Jan 1986 |
JPX |
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Entry |
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Continuations (1)
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Number |
Date |
Country |
Parent |
598266 |
Oct 1990 |
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