Infrared cut-off filter
First Claim
Patent Images
1. A device, comprising:
- an image sensor;
an optical system comprising at least one lens; and
an infrared, IR cut-off filter;
the transmission characteristics of the IR cut-off filter comprising a ripple with a low transmission between wavelengths corresponding to blue and green.
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Accused Products
Abstract
According to an embodiment a device comprises: an image sensor, an optical system comprising at least one lens, and an infrared, IR cut-off filter, transmission characteristics of the IR cut-off filter comprising a ripple with low transmission between wavelengths corresponding to blue and green.
21 Citations
20 Claims
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1. A device, comprising:
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an image sensor; an optical system comprising at least one lens; and an infrared, IR cut-off filter; the transmission characteristics of the IR cut-off filter comprising a ripple with a low transmission between wavelengths corresponding to blue and green. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A portable device, comprising:
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an image sensor; an optical system comprising at least one lens; and an infrared, IR cut-off filter; a response of the image sensor in a green region being greater than standard red green blue, sRGB color space; and transmission characteristics of the IR cut-off filter comprising a ripple with low transmission between wavelengths corresponding to blue and green. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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configuring an image sensor on a substrate, in an enclosure; configuring an infrared IR cut off filter over the image sensor, in the enclosure, transmission characteristics of the IR cut off filter comprising a ripple with substantially lower transmission of in between wavelengths corresponding to colors blue and green; configuring an optical system over the image sensor, in the enclosure; configuring the enclosure on a circuit board comprising at least one processor and storage; and enclosing the circuit board comprising the enclosure in a casing, such that there is an optical aperture in the casing corresponding to the enclosure. - View Dependent Claims (20)
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Specification