Composite photometric and range finding element array
US5302997A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Dec 28, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/09979
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multiple photosensitive element array and lens system particularly adapted for use in a camera for providing scene image light intensity signals for use in automatic exposure and automatic focus control. A two-dimensional photometric sensor array of planar photosensitive array segments is centrally disposed on an integrated circuit substrate so that the planar segments each receive light from corresponding segments of the image focused thereon for developing first light intensity related signals in response thereto. At least one pair of linear range arrays, each comprising a plurality of photosensitive elements, is mounted on the substrate on either side of the two-dimensional sensor array, such that the linear range arrays are separated by a baseline distance extending across the two-dimensional photometric sensor array. A lens system is provided for focusing an image of a scene to be photographed upon each of the two-dimensional photometric sensor array and the linear photosensitive element range arrays. The photosensitive elements of the pair of linear photosensitive element arrays each receive light from a fractional portion of the image focused thereon and develop second lig…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.