Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OPTICAL SENSOR AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/208606
Kind Code:
A1
Abstract:
An optical sensor includes: a light emitting element (2); a first light receiving element (3) for receiving reflected light; a second light receiving element (4) for receiving, as a detection standard, a portion of light emitted from the light emitting element (2); a first chamber (21) for accommodating the light emitting element (1); a second chamber (22) for accommodating the second light receiving element (4), a third chamber (23) for accommodating the first light receiving element (3); and a case (20) comprising a light blocking material and having an opening (25) for passing light from the light emitting element (2) to a detection object. A partition wall (51) between the first chamber (21) and the second chamber (22) is provided with a window (52) for passing the portion of light that serves as the detection standard.

Inventors:
OKADA NORIKAZU
TAKADA TOSHIYUKI
KAMADA SHOHEI
Application Number:
PCT/JP2017/013425
Publication Date:
December 07, 2017
Filing Date:
March 30, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SHARP KK (JP)
International Classes:
H01L31/12
Foreign References:
JPS6438577U1989-03-08
JP2011108925A2011-06-02
JP2008028005A2008-02-07
JPS5487075U1979-06-20
US20130105822A12013-05-02
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Download PDF: