Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIGHT SOURCE POSITION DETECTION DEVICE, LIGHT SOURCE TRACKING DEVICE, CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/091628
Kind Code:
A1
Abstract:
A light source position detection device (10) has a condensing lens (32) for condensing light emitted from the sun, an imaging element (33) for receiving the light condensed by the condensing lens (32), and a CPU (21) for detecting the position of the sun on the basis of per-pixel light reception information received by the imaging element (33), and the CPU (21) changes the shutter speed of the imaging element (33) and adjusts the amount of light received by the imaging element in response to the amount of light emitted from the sun. The light source position detection device (10) can detect the position of a light source with high precision, and can detect the position of a light source with high precision even when the light source is obscured by clouds, for example.

Inventors:
IGARI SANEKAZU (JP)
KIKUCHI KATSUHIKO (JP)
SHIOMI TOSHIO (JP)
ISHIKAWA HIDEO (JP)
Application Number:
JP2012/082550
Publication Date:
June 19, 2014
Filing Date:
December 14, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
OPTO RES CORP (JP)
SOFT WORKS CORP (JP)
ISHIKAWA TRADING CO LTD (JP)
International Classes:
G01C1/00; F24S50/20; H01L31/042; G01S3/786; H04N5/238
Foreign References:
JP2000196125A2000-07-14
JPH0351713A1991-03-06
JP2004340784A2004-12-02
JP2009014495A2009-01-22
JP2009281980A2009-12-03
JP2010223915A2010-10-07
JPH10197247A1998-07-31
JP2000234925A2000-08-29
JP2004153203A2004-05-27
JP2004085270A2004-03-18
JP2000337876A2000-12-08
Other References:
See also references of EP 2933601A4
None
Attorney, Agent or Firm:
KOKUBUN, Takayoshi (JP)
Takayoshi Kokubu (JP)
Download PDF: