Systems and methods for estimating lens temperature
US6826361B1 · kind B1 · utility
10Cited by
2References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for estimating lens temperature is disclosed. In one embodiment, a camera comprises a body and a lens assembly. The lens assembly comprises a focus mechanism. The body comprises a heat generating element, a sensor proximally located to the heat generating element, and a processor. The sensor is configured to provide a signal responsive to temperature. The processor is configured to apply an input responsive to the signal to a heat transfer model to determine a temperature of the lens assembly. The processor further determines a focus error correction responsive to the temperature of said lens assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.