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:
Aug. 15, 1995
Filed:
Jan. 22, 1993
Applicant:
Inventor:
Katsuyasu Mizuno, Gamagori, JP;
Assignee:
Nidek Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G03B / ; A61N / ;
U.S. Cl.
CPC ...
359784 ; 359362 ; 359434 ; 606-4 ;
Abstract
A lens system disposed between the emitting area of a laser diode and a focal plane for focusing the output beam of the laser diode on the focal plane is disclosed, in which system, as regards a direction parallel to the lengthwise direction of the emitting area of the laser diode, the emitting area and the focal plane are conjugate, and a telescopic optical system is formed of the lens system to form a telescopic image indicative of the exit pupil of the lens system at an infinite distance and to make small the convergent angle of the laser beam incident on the focal plane.