Automatic light intensity compensating device of surgical light
US9920922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2016 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jul 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automatic light intensity compensating device of a surgical light includes a suspension or support system and one or multiple light heads carried on the suspension or support system. Each of the light head includes a housing, one or multiple grips mounted to the housing for hand holding and moving the light head to a desired position, one or multiple light sources mounted in the housing for illumination, a focus adjustment mechanism for adjusting the focal length of illumination, a focusing detection mechanism for detecting a position of the focus adjustment mechanism within a variation range, and an automatic illuminance compensation device, which automatically increases or decreases luminance of the light source according to the position of the focus adjustment mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.