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. 18, 1989
Filed:
Jun. 22, 1987
Yukuo Nishimura, Sagamihara, JP;
Yuko Miyajima, Tokyo, JP;
Kazuo Minoura, Yokohama, JP;
Takeshi Baba, Yokohama, JP;
Kazuhiko Matsuoka, Yokohama, JP;
Masayuki Usui, Yokohama, JP;
Atsushi Someya, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This specification discloses a light modulating device comprising a liquid medium whose physical properties are variable by heat, and a heat-generating element for heating the liquid medium to such a degree that boiling does not occur to the liquid medium. The specification also discloses a light modulation apparatus comprising a liquid medium whose physical properties are variable by heat, a heat-generating element for heating the liquid medium to such a degree that boiling does not occur to the liquid medium, and a optical system for taking out one of a light flux modulated by the variation in physical properties of the liquid medium and a light flux not modulated by said variation from a state in which the light fluxes are mixedly present.