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. 09, 1996
Filed:
Jul. 14, 1993
Reinhard Jorgens, Aalen, DE;
Carl-Zeiss-Stiftung, Heidenheim, DE;
Abstract
In a microscope with a laser illumination, the laser beam is coupled in over the reflected light illumination beam path from the rear side of the microscope stand. The reflected light illumination reflectors are received in a slide with several switching positions. In one switching position, the slide is fitted with a fully reflecting mirror. The position of the fully reflecting mirror is monitored by sensors. The sensors are coupled to a shutter, such that the laser beam is only released when the fully reflecting mirror is inserted. The microscope is constructed as a laser scanning microscope of the inverted type. Sensors are also provided on a pivotable arm that supports a housing. The housing holds a transmitted light condensor and folding mirror above the object stage, and protects against inadvertently looking into the laser light. The signals from both sensors are connected together in the sense of a logic AND circuit, The laser beam path is closed by the shutter (and the laser is released) only when both sensors signal a safe state.