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:
Jun. 14, 2022
Filed:
May. 28, 2018
Sharp Nec Display Solutions, Ltd., Tokyo, JP;
Ryosuke Kawase, Tokyo, JP;
SHARP NEC DISPLAY SOLUTIONS, LTD., Tokyo, JP;
Abstract
Illumination optical system () for outputting light to a projection lens, light source unit () for outputting light to illumination optical system (), and dust-proof case () houses illumination optical system () and can be divided into two housings are provided, and the dust-proof case () has second positioning member (-), (-) provided on the outer surface of dust-proof case () and fitted to and first positioning member (-), (-) provided in light source unit (), mounting seating surface () provided on the outer surface of the dust-proof case () for screwing light source unit (), and pinching portion () for sandwiching a final optical member of light source unit () sandwiched between two housings.