Short focal lens array with multi-magnification properties
US4692015A · kind A · utility
25Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Mar 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A short focal length lens array has a plurality of lenslets formed within the body of a photosensitive glass. The lenslets have areas which are oriented such that they tilt away from each other from the center out to the array edges. The lens array acts as a reduction or enlargement lens when reproducing objects at an object plane onto an image plane. A one or two row embodiment is disclosed suitable for incremental scanning of a document at image planes. A further full frame lens array is disclosed for providing full frame exposure of a document at various selected magnifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.