TRISTIMULUS COLORIMETER HAVING INTEGRAL DYE FILTERS
First Claim
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1. A solid-state color-measuring device, comprising:
- a plurality of photodetectors; and
a plurality of filters permanently deposited on the plurality of photodetectors, wherein at least one of the plurality of filters comprises a single colorant layer having a transmission coefficient as a function of wavelength that descends from a maximum value between approximately 445 and 450 nm to fifteen percent of the maximum value between approximately 485 and 495 nm.
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Abstract
One embodiment of a solid-state color-measuring device includes a plurality of photodetectors and a plurality of filters permanently deposited on the photodetectors, where at least one of the filters includes a single colorant layer having a transmission coefficient as a function of wavelength that descends from a maximum value between approximately 445 and 450 nm to fifteen percent of the maximum value between approximately 485 and 495 nm.
56 Citations
21 Claims
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1. A solid-state color-measuring device, comprising:
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a plurality of photodetectors; and a plurality of filters permanently deposited on the plurality of photodetectors, wherein at least one of the plurality of filters comprises a single colorant layer having a transmission coefficient as a function of wavelength that descends from a maximum value between approximately 445 and 450 nm to fifteen percent of the maximum value between approximately 485 and 495 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A colorimeter, comprising:
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a semiconductor substrate having at least four photodetectors; at least four filters permanently deposited on the at least four photodetectors, where at least one of the at least four filters comprises a single colorant layer having a transmission coefficient as a function of wavelength that descends from a maximum value between approximately 445 and 450 nm to fifteen percent of the maximum value between approximately 485 and 495 nm; and at least four channels including the at least four photodetectors and the at least four filters, so that linear combinations of a plurality of spectral responses of the at least four channels approximate a set of Commission Internationale de I'"'"'Eclairage (CIE)-like target color-matching functions. - View Dependent Claims (18, 19, 20, 21)
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Specification