Title:
Photosensor
Document Type and Number:
Japanese Patent JP6167117
Kind Code:
B2
Abstract:
An optical sensor having one or more sensing interference elements is disclosed. A first detector function generates a coarse optical path difference signal for example using a discrete Fourier transform of a detected interference spectrum, and a second detector function generates a refined optical path difference signal using the coarse optical path difference signal and for example a cross correlation of the interference spectrum with one or more sets of periodic transfer functions.
Inventors:
Pechstedt, Ralph-Dieter
Application Number:
JP2014561510A
Publication Date:
July 19, 2017
Filing Date:
March 13, 2013
Export Citation:
Assignee:
Oxenses Limited
International Classes:
G01D5/26; G01K11/12; G01L9/00
Domestic Patent References:
| JP2011515659A | ||||
| JP2031113A | ||||
| JP2007532871A | ||||
| JP2011506949A |
Foreign References:
| US20120050735 | ||||
| US20070006663 | ||||
| GB2202936A |
Attorney, Agent or Firm:
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Nao Usui
Fumiaki Doi
Keita Kobuchi
Shintaro Suzuki
Tatsuya Tanaka
Yasumitsu Suzuki
Nao Usui
Fumiaki Doi
Keita Kobuchi
Shintaro Suzuki