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:
Apr. 14, 2020
Filed:
Nov. 15, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hideo Onishi, Osaka, JP;
Abstract
An image projection device projects an image to a projection surface, and includes an image forming element, a refractive optical unit, and a reflective optical unit. The image forming element forms an image to be projected to the projection surface based on an image signal. The refractive optical unit has a refractive optical system including a plurality of lenses guiding light of the image toward the projection surface, the image being formed by the image forming element. The reflective optical unit includes a reflective optical system having a first mirror reflecting the light guided by the refractive optical system and a second mirror reflecting the light reflected by the first mirror toward the projection surface; and a blocking section including a blocking surface disposed at a position of blocking part of light generated in the refractive optical unit and passing through between the first mirror and the second mirror.