Automated light tuner
US6179448A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/708
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for automatically tuning the power and the intensity of light supplied to an illuminated object to some desired values, the apparatus including a light source positionable along at least a first axis with respect to a reflector, a drive assembly for positioning the light source in response to an intensity of light measured by a light meter positioned to sample light reflected from the object along a reflected light path, and a diaphragm having an adjustable aperture for controlling the amount of light supplied to the object. The light source is automatically positioned along the first axis to achieve a maximum intensity of light on the object. The light source may then be automatically positioned along a second axis and a third axis to achieve respective maximum light intensities on the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.