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:
May. 25, 2021
Filed:
Dec. 07, 2016
Hamamatsu Photonics K.k., Hamamatsu, JP;
Yoshinori Matsui, Hamamatsu, JP;
Haruyoshi Toyoda, Hamamatsu, JP;
Munenori Takumi, Hamamatsu, JP;
Kazutaka Suzuki, Hamamatsu, JP;
Kazuhiro Nakamura, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A light beam irradiation device includes a light source unit that emits a light beam, a reflection mirror and a driving unit that swings the reflection mirror under supply of a driving signal, and comprises the light deflection unit receiving and reflecting the light beam emitted from the light source unit using the reflection mirror, a light deflection angle detection unit that includes a light reception surface that receives the light beam reflected by the reflection mirror, the light deflection angle detection unit detecting a position of the light beam on the light reception surface at a frequency equal to or higher than four times a resonance frequency of the light deflection unit and outputting a detection signal indicating the position, and an operation control unit that corrects the driving signal on the basis of the detection signal and outputs the corrected driving signal to the light deflection unit.