发明名称 |
METHOD AND APPARATUS FOR CONTACT IMAGE SENSING |
摘要 |
A contact image sensor comprises: a waveguiding structure for propagating light in a first direction comprising, in series, a first clad medium, a first core, a switchable grating clad, a second core, and a second clad medium sandwiched by transparent substrates, patterned parallel electrode elements orthogonally traversing the waveguides, a light source, a platen and a detector. Switchable grating regions overlapped by a first voltage-addressed electrode element diffract TIR light from the first core towards the platen. Switchable grating region overlapped by a second voltage-addressed electrode element diffract TIR light reflected from the platen into a TIR path within the second core. |
申请公布号 |
WO2016156776(A1) |
申请公布日期 |
2016.10.06 |
申请号 |
WO2016GB00065 |
申请日期 |
2016.03.30 |
申请人 |
POPOVICH, Milan Momcilo;WALDERN, Jonathan David;GRANT, Alastair John |
发明人 |
POPOVICH, Milan Momcilo;WALDERN, Jonathan David;GRANT, Alastair John |
分类号 |
G02F1/13;G02B5/18;G02B26/08;G02B27/42;G02F1/29 |
主分类号 |
G02F1/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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