Invention Grant
- Patent Title: Microscope having a transmitted-light illuminating device for critical illumination
- Patent Title (中): 显微镜具有用于临界照明的透射光照明装置
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Application No.: US13613283Application Date: 2012-09-13
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Publication No.: US09042011B2Publication Date: 2015-05-26
- Inventor: Robert Lettow , Guenter Grabher
- Applicant: Robert Lettow , Guenter Grabher
- Applicant Address: CH Heerbrugg
- Assignee: LEICA MICROSYSTEMS (SCHWEIZ) AG
- Current Assignee: LEICA MICROSYSTEMS (SCHWEIZ) AG
- Current Assignee Address: CH Heerbrugg
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: DE102011082770 20110915
- Main IPC: G02B21/06
- IPC: G02B21/06 ; G02B3/00 ; G02B21/08 ; G02B5/02

Abstract:
A microscope includes a light source including an LED device having a light radiating surface and a light directing element including a larger coupling-out surface. The light directing element is disposed so as to couple in light radiated by the light source and couple out the radiated light from the coupling-out surface. The light directing element is disposed so that the light is radiated out in an angular range of ±10° to ±50° and illuminates an area at 5 meters in an angular range of at least ±5° with intensity fluctuations of less than 50%. A condenser is disposed between the coupling-out surface of the light directing element and the object to be viewed. The condenser has an aperture with an aperture dimension and is disposed such that the aperture is irradiated completely with the light coupled out from the coupling-out surface.
Public/Granted literature
- US20130070335A1 MICROSCOPE HAVING A TRANSMITTED-LIGHT ILLUMINATING DEVICE FOR CRITICAL ILLUMINATION Public/Granted day:2013-03-21
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