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:
Jan. 14, 2003
Filed:
May. 26, 2000
Applicant:
Inventors:
Hiroyuki Hoshino, Kawasaki, JP;
Takashi Kiyota, Yokohama, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/00 ; H04N 5/74 ;
U.S. Cl.
CPC ...
C09K 5/00 ; H04N 5/74 ;
Abstract
A cooling medium and a cooling device for optical equipment using the same, which cooling medium has a refractive index in a specific range, hardly causes the problem to dissolve or swell plastic lens and other component parts, and is flame retardant. The cooling medium comprises a cyclic aliphatic hydrocarbon having at least one cross linkage and has a flash point of 120° C. or above and a melting point of −20° C. or below. The space between a pair of transparent optical members of a cooling device for optical equipment, is filled with the cooling medium.