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:
Oct. 03, 2017
Filed:
Jun. 20, 2016
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Yasunari Mikutsu, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Jun Mashimo, Tokyo, JP;
Takahiro Hiramatsu, Kanagawa, JP;
Yoshito Saito, Kanagawa, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Yasunari Mikutsu, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Jun Mashimo, Tokyo, JP;
Takahiro Hiramatsu, Kanagawa, JP;
Yoshito Saito, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An illumination optical system is provided that is configured to guide light emitted from a light source to an image generation unit that is arranged to be movable in a direction perpendicular to incoming light and is configured to generate an image by reflecting the incoming light. The illumination optical system includes a first lens that is arranged to be movable in a direction perpendicular to an optical axis of the first lens, a second lens that is arranged to be movable in a direction that changes a face-to-face distance between the first lens and the second lens, and a lens position control unit configured to displace the first lens and the second lens.