Apparatus for exposing an adjustable area of a film
US5631722A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1994 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Dec 28, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/028
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for exposing a selected area of a film, and comprising a holding assembly for holding a film, and a first support assembly connected to and supporting the holding assembly. The apparatus further comprises an exposure area control assembly located adjacent the holding assembly and forming an adjustable opening to expose a selected area of the film, and a second support assembly connected to and supporting the exposure area control assembly. Preferably, the first support assembly supports the film assembly for movement upward and downward and forward and rearward, and for pivotal movement about horizontal and vertical axes. Also, the second support assembly supports the exposure area control assembly for forward and rearward movement, and for pivotal movement about horizontal and vertical axes. In addition, in a preferred embodiment, the exposure area control assembly includes a frame and a multitude of slats supported by the frame, and these slats may be moved to vary the size, shape, and position of the adjustable opening formed by that control assembly. A preferred embodiment of the invention described herein in detail is very well suited for seamless topographic imaging…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.