Infrared illumination system for digital camera
First Claim
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1. An infrared illumination system for a digital camera having a taking lens, comprising:
- a) a plurality of infrared emitting diodes arranged around the taking lens, each diode being contained in a package having an infrared transparent window;
b) first diffuser means located over the windows of the packages for diffusing the light from the infrared light emitting diodes; and
c) second diffuser means spaced apart from the first diffuser means for further diffusing the light from the light emitting diodes.
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Abstract
An infrared illumination system for a digital camera having a taking lens, includes: a plurality of infrared emitting diodes arranged around the taking lens, each diode being contained in a can having an infrared transparent window; a first diffuser located over the windows of the cans; and a second diffuser spaced apart from the first diffusers. The first diffuser is a new type of diffuser called a Fourier transform holographic diffuser.
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Citations
9 Claims
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1. An infrared illumination system for a digital camera having a taking lens, comprising:
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a) a plurality of infrared emitting diodes arranged around the taking lens, each diode being contained in a package having an infrared transparent window; b) first diffuser means located over the windows of the packages for diffusing the light from the infrared light emitting diodes; and c) second diffuser means spaced apart from the first diffuser means for further diffusing the light from the light emitting diodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification