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:
Sep. 17, 1991
Filed:
Oct. 17, 1988
Applicant:
Inventor:
Yasushi Ohbayashi, Shizuoka, JP;
Assignee:
Hamamatsu Photonics Kabushiki Kaisha, Shizuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359513 ; 359507 ; 359580 ; 359894 ;
Abstract
In order to reduce the light reflectance, an optical element comprises an optical element body formed of an optical crystal or a lens, and glass members with a prescribed refractive index, wherein the glass member is bonded to each of the light incident and emergent surfaces of the element body by an adhesive agent with a prescribed refractive index. The optical element body will not be affected adversely even if it is made of a crystal which is vulnerable to heat.