System and method for recording successive images of the same object at varying depths of field
US5528334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/097
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for recording successive images of the same object at varying depths of field. An automatic distance measuring circuit measures the distance from an object, and a brightness measuring circuit measures the ambient brightness around the object. A shutter release switch is activated in first and second steps. A microcontroller controls the system and is connected to the automatic distance measuring circuit, the brightness measuring circuit, a shutter actuator, a diaphragm actuator, and a film motor actuator. After pressing the shutter release button once, a plurality of images are automatically recorded, each having the same exposure and a different depth of field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.