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. 02, 1985
Filed:
Sep. 14, 1982
Applicant:
Inventor:
Hideo Hirose, Kawaguchi, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
350415 ; 350427 ; 350523 ;
Abstract
A telecentric illumination system for telecentrically illuminating an object includes a light source, optical means for telecentrically supplying a light beam from the light source to the object, and an auxiliary condenser removably disposed between the optical means and the object to be illuminated. The auxiliary condenser has a first and a second lens group disposed with a spacing therebetween corresponding to the sum of the focal lengths thereof. Thus, when the auxiliary condenser is inserted between the optical means and the object to be illuminated, there is achieved a telecentric illumination of higher magnification than the illuminated condition by the optical means.