The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
May. 02, 2011
Hidenao Iwai, Hamamatsu, JP;
Masatoshi Fujimoto, Hamamatsu, JP;
Hidenao Iwai, Hamamatsu, JP;
Masatoshi Fujimoto, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
Provided is an observation device which can obtain a phase image of a moving object rapidly with high sensitivity even when using a photodetector having a slow read-out speed per pixel. The observation devicecomprises a light source, a first modulator, a second modulator, a lens, a beam splitter, a photodetector, and an arithmetic unit. The lensreceives scattered light generated by a moving objectand forms a Fourier transform image of the object. The photodetectoroutputs data representing a sum in a v direction of data temporally changing at a frequency corresponding to a Doppler shift frequency of the light having reached each position on a light-receiving surface through the lensat each position in a u direction at each time. The arithmetic unitobtains an image of the objectaccording to the output of the photodetector