Additive color system with compensation of repeatability errors

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

350150, G01J 132

Patent

active

042296480

ABSTRACT:
The additive color system includes a light source providing three component light beams. The component beams are combined to form a composite beam. Three variable-density electrooptical filter units are provided, each arranged in the path of a respective one of the component beams. Each filter unit attenuates the respective component beam in dependence upon a control voltage applied to its control electrodes. A selecting device selects the transmission value to which the filter units are to be set. A circuit generates corresponding control voltages and applies them to the control electrodes of the filter units, and includes compensating circuits for compensating for repeatability errors in the response of the filter units.

REFERENCES:
patent: 3675022 (1972-07-01), Nelson et al.
patent: 3705758 (1972-12-01), Haskal
patent: 3986022 (1976-10-01), Hyatt
patent: 4091279 (1978-05-01), Kaufman

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Additive color system with compensation of repeatability errors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additive color system with compensation of repeatability errors , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additive color system with compensation of repeatability errors will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2024539

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.