Browse Prior Art Database

SPLIT SCREEN OPTICAL ENHANCER

IP.com Disclosure Number: IPCOM000006367D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2001-Dec-28
Document File: 1 page(s) / 57K

Publishing Venue

Motorola

Related People

Gary Blitman: AUTHOR [+3]

Abstract

Robotic vision placement requires sufficient cam- era resolution of required features for accurate vision guided placement. The proper resolution is normally obtained by adjusting the camera's field of view by var- ying lenses and focal lengths. Most components can be analyzed with a single image.

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MOTOROLA /NC. Technical Developments Volume 15 May 1992

SPLIT SCREEN OPTICAL ENHANCE@

by Gary Blitman, Jerrold S. Pine and DiAnn J. Bee&h

  Robotic vision placement requires sufficient cam- era resolution of required features for accurate vision guided placement. The proper resolution is normally obtained by adjusting the camera's field of view by var- ying lenses and focal lengths. Most components can be analyzed with a single image.

  However, some components, such as shown at the top of Figure 2, may have relevant features that are very small relative to the size of part. In these instances, the usual procedure would be to tie multiple images of the part. Unforhmately, this increases cycle time and may result in some loss of accuracy.

  The SPLIT SCREEN OPI'ICAL ENHANCER was designed for imaging such components. The part shown at the top of Figure 2 has through-hole posts that are ,028 in diameter at opposite end of a 3 * body. If only one image was taken, the posts would be represented by a

spot less than 1% of the e&e image, thereby making a determination of the posts position unreliable. The Split Screen Optical Enhancer jjermits imaging of the posts with a much higher resolution while ignoring the rest of the component by using bptically aligned mirrors to "ZOOM IN" on the desire? features as in Figure 1.

  The SPLIT SCREEN OPTICAL ENHANCER, shown in Figure 2, consists of 2 sets of mirrors at 45 degree angles mounted diectly under the desired fea- tures. A cam...