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:
Dec. 04, 2018
Filed:
Feb. 10, 2016
Hitachi-lg Data Storage, Inc., Tokyo, JP;
Yasuhiro Yoshimura, Tokyo, JP;
Ayano Otsubo, Tokyo, JP;
Seiichi Katou, Tokyo, JP;
Hiroshi Ogasawara, Tokyo, JP;
Tatsuya Yamasaki, Tokyo, JP;
Kenji Watabe, Ibaraki, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
In an optical module and a scanning-type image display device, a reduction in heat insulating effect due to a natural convection generated between the optical module and a case is suppressed to alleviate laser overheating and thermal expansion or contraction of each component and obtain a stable projection image quality. In an optical module that couples laser beams from a plurality of laser beam sourcesand irradiates the laser beams to a desired position, a cover that covers the optical module is provided, a second cover is provided in a space between the optical module and the cover, and a projecting part is provided on a surface of the second cover facing the optical module.