Title:
PHOTOSENSOR UNIT
Document Type and Number:
WIPO Patent Application WO/2014/097941
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a photosensor unit which has a simple structure and does not reduce detection accuracy. This photosensor unit comprises light-emitting elements (1) and a light-receiving element (2) housed in a unit case (3); detection light is projected from the light-emitting elements (1) to outside of the unit case (3), and the light reflected back from outside of the unit case (3) is detected by means of the light-receiving element (2), wherein multiple light-emitting elements (1) are arranged around the light-receiving element (2), and a suitable dividing wall (4) divides the space inside of the unit case (3) through which the reflected light passes from the space through which the detection light passes.
Inventors:
ONO TAKASHI
HIRAI WATARU
HIRAI WATARU
Application Number:
PCT/JP2013/083180
Publication Date:
June 26, 2014
Filing Date:
December 11, 2013
Export Citation:
Assignee:
ALPHA CORP (JP)
NISSAN MOTOR (JP)
NISSAN MOTOR (JP)
International Classes:
G01S17/04; G01V8/12; G01J1/02; G01J1/06
Domestic Patent References:
| WO2007099611A1 | 2007-09-07 | |||
| WO2012043663A1 | 2012-04-05 |
Foreign References:
| JP2009020763A | 2009-01-29 | |||
| JP2004502062A | 2004-01-22 | |||
| JP2009150690A | 2009-07-09 |
Other References:
See also references of EP 2896975A4
Attorney, Agent or Firm:
KAWAOKA Hideo et al. (JP)
Hideo Kawaoka (JP)
Hideo Kawaoka (JP)
Download PDF:
Previous Patent: PHOTOSENSOR LENS
Next Patent: CATALYST FOR ALCOHOL SYNTHESIS, APPARATUS FOR PRODUCING ALCOHOL AND METHOD FOR PRODUCING ALCOHOL
Next Patent: CATALYST FOR ALCOHOL SYNTHESIS, APPARATUS FOR PRODUCING ALCOHOL AND METHOD FOR PRODUCING ALCOHOL