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Title:
OPTICAL MODULE, AUTHENTICATION DEVICE, CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/235039
Kind Code:
A1
Abstract:
Provided is an optical module having: a parallel light conversion unit for converting reflection light into parallel light; and a light collection unit on which the parallel light is incident, wherein an optical distance between the parallel light conversion unit and the light collection unit is set to be variable.

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Inventors:
ENOKIDO TOSHIO (JP)
Application Number:
PCT/JP2019/013596
Publication Date:
December 12, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
G06T1/00; G03B15/00; G03B17/17
Domestic Patent References:
WO2017132360A12017-08-03
Foreign References:
JP2001264636A2001-09-26
JP2005202015A2005-07-28
JP2000171488A2000-06-23
JPH0928697A1997-02-04
JPH06325158A1994-11-25
JP2011107512A2011-06-02
US20080267463A12008-10-30
Other References:
SHOGENJI ET AL: "3 fingerprint image acquisition system", ITE TECHNICAL REPORT, vol. 29, no. 27, 20 May 2005 (2005-05-20), pages 13 - 16
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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