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:
Jul. 19, 2022
Filed:
Dec. 15, 2017
Nec Corporation, Tokyo, JP;
Satoshi Kyosuna, Tokyo, JP;
Hirofumi Tsuda, Tokyo, JP;
Satoshi Komatsu, Tokyo, JP;
Fujio Okumura, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A projection device comprises: a spatial light modulator having a display unit whereon a pattern corresponding to a display image is presented; a light source arranged to irradiate the display unit with emission light; a projection optical system arranged on the optical path of the reflected light of the emission light incident on the display unit and projecting projection light with the high order component included in the reflected light removed therefrom; and a projection control unit that causes the display unit to present a composite image that combines an image formed by a virtual lens that focuses the emission light incident on the display unit at a first focus position with the pattern corresponding to the display image, and controls the light source so that the display unit is irradiated with the emission light.