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:
Nov. 16, 2021
Filed:
Dec. 11, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Masahito Ogata, Osaka, JP;
Toshiya Mori, Osaka, JP;
Ken'ichi Kasazumi, Osaka, JP;
Hiroaki Okayama, Nara, JP;
Abstract
A screen includes a surface inclined with respect to a reference plane. A driver moves the screen in a movement direction orthogonal to the reference plane. When forming a first virtual image serving as a virtual image on a first virtual plane whose inclination angle α with respect to an optical axis of a projector is smaller than a predetermined value, a controller is configured to hold the screen in the movement direction. When forming a second virtual image serving as the virtual image on a second virtual plane whose inclination angle ß with respect to the optical axis of the projector is larger than the predetermined value, the controller is configured to move the screen in the movement direction.