Browse Prior Art Database

Reflectance Scanner With Direct Viewing During Alignment

IP.com Disclosure Number: IPCOM000052859D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Harrison, RW: AUTHOR

Abstract

A reflectance scanner's deflecting mirror swings out of the light path during alignment, allowing an operator to directly view the image of the sampling aperture imposed on the object.

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Reflectance Scanner With Direct Viewing During Alignment

A reflectance scanner's deflecting mirror swings out of the light path during alignment, allowing an operator to directly view the image of the sampling aperture imposed on the object.

In Fig. 1, during normal operation, a light source illuminates an object monitored by a detector through a lens, aperture, and reflecting mirror. In Fig. 2, for alignment, the operator swings the mirror away from the aperture and places an ocular and beam splitter directly in the path between another light source and the object. The operator thus directly views the object through the ocular, upon which he sees imposed a bright image of the sampling aperture.

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