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. 13, 1988
Filed:
Apr. 08, 1987
Applicant:
Inventor:
Henry J Emmel, Rochester, NY (US);
Assignee:
Cambridge Instruments Inc., Buffalo, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G01D / ; G01D / ; G09F / ;
U.S. Cl.
CPC ...
350523 ; 350528 ; 350321 ; 350266 ; 116202 ; 116324 ; 362295 ;
Abstract
A mechanical indicator for indicating the intensity of an illuminator is described for use in an optical instrument. The indicator includes a cover plate having a plurality of apertures and an opaque slide plate mounted behind the cover. The opaque slide plate is connected to the apparatus controlling the lamp intensity and moves across the apertures as the lamp intensity is changed. A source of illumination is positioned with respect to the opaque slide plate so as to emit light through the apertures not covered by the plate.