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:
Feb. 20, 2024
Filed:
Feb. 07, 2019
Applicant:
Hamamatsu Photonics K.k., Hamamatsu, JP;
Inventors:
Assignee:
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G03H 1/22 (2006.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
G02F 1/01 (2013.01); G02F 1/29 (2013.01); G03H 1/2294 (2013.01);
Abstract
An SLM includes a modulation unit and a driving circuit. The modulation unit includes a plurality of pixels, and modulates a phase or an intensity of incident light in each pixel according to an amplitude of a drive signal changing periodically with time. The driving circuit provides the drive signal to the modulation unit. The driving circuit performs control such that a phase of the drive signal V(t) provided to a first pixel group in the plurality of pixels and a phase of the drive signal V(t) provided to a second pixel group in the plurality of pixels are mutually inverted.