Title:
DETECTION DEVICE, DETECTION PROGRAM, STORAGE MEDIUM, DETECTION METHOD, AND LIGHT EMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/201570
Kind Code:
A1
Abstract:
This detection device (1) comprises a light-emitting element array (20) comprising a plurality of light-emitting elements, a light-receiving element array (5) comprising a plurality of light-receiving elements for receiving light that has been reflected after being emitted onto an object to be detected from the light-emitting element array, a drive unit (50) for driving the light-emitting elements, and a detection unit (8) for detecting the object to be detected by controlling at least one from among the timing of the supply of a drive current to the light-emitting elements to emit light and the light reception timing of the light-receiving elements such that even if the arrangement of the light-emitting elements to emit light changes, the variation in the amount of time from the start of light emission from the light-emitting elements to emit light to the time when the light-receiving elements receive light falls within a predetermined range. When an object to be detected is detected through the detection of light that has been reflected after being emitted onto the object to be detected from a light-emitting element array comprising a plurality of light-emitting elements, this invention makes it possible to, relative to a case in which the influence of variation in the arrangement of the light-emitting elements to emit light is not taken into consideration, suppress the influence of light-emission-rise-characteristic variation even if the arrangement of the light-emitting elements to emit light changes.
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Inventors:
IGUCHI DAISUKE (JP)
KONDO TAKASHI (JP)
SAKITA TOMOAKI (JP)
KONDO TAKASHI (JP)
SAKITA TOMOAKI (JP)
Application Number:
PCT/JP2021/026849
Publication Date:
September 29, 2022
Filing Date:
July 16, 2021
Export Citation:
Assignee:
FUJIFILM BUSINESS INNOVATION CORP (JP)
International Classes:
G01S7/484; G01B11/24; G01S7/4863; G01S17/89
Foreign References:
| JP2019138805A | 2019-08-22 | |||
| JP2010025906A | 2010-02-04 | |||
| JP2018006137A | 2018-01-11 | |||
| JP2005064000A | 2005-03-10 | |||
| US20200209358A1 | 2020-07-02 | |||
| JP2019219400A | 2019-12-26 | |||
| JP2019028039A | 2019-02-21 | |||
| JP2017015448A | 2017-01-19 | |||
| JP2007333592A | 2007-12-27 | |||
| JP2021051646A | 2021-04-01 |
Attorney, Agent or Firm:
KOH-EI PATENT FIRM, P.C. (JP)
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