Method and apparatus for contact image sensing
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United States of America Patent
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Aug 8, 2017
Issued Date -
N/A
app pub date -
Jul 30, 2014
filing date -
Jul 31, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A contact image sensor having an illumination source; a first SBG array device; a transmission grating; a second SBG array device; a waveguiding layer including a multiplicity of waveguide cores separated by cladding material; an upper clad layer; and a platen. The sensor further includes: an input element for coupling light from the illumination source into the first SBG array; a coupling element for coupling light out of the cores into output optical paths coupled to a detector having at least one photosensitive element.
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 77 Citation Count
- F21V Class
- 99.15 % this patent is cited more than
- 8 Age
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