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. 19, 1994
Filed:
Jun. 24, 1992
Shintaro Nakagaki, Miura, JP;
Tsutou Asakura, Yokohama, JP;
Ryusaku Takahashi, Yokosuka, JP;
Tetsuji Suzuki, Yokosuka, JP;
Fujiko Tatsumi, Yokohama, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
Color separating or composing optical system having an optical axis wherein at least one color filter is placed obliquely to the optical axis to perform color separation or composition by color-selective reflection and passing of lights proceeding along the optical axis, a cylindrical lens is placed in an optical path of a light passing the color filter, another feature of this invention is that two color filters are placed obliquely with respect to the optical axis to perform color separation or composition by color-selective reflection and passing of lights proceeding along the optical axis, and are arranged in configuration as such that an imaginary plane defined to include the optical axis and a line perpendicular to one of the two color filters, is perpendicular to another imaginary plane defined to include the optical axis and another line perpendicular to the other of the two color filters.