Filter having adjustable spectral transmittance function

Details Filter having adjustable spectral transmittance function Filter having adjustable spectral transmittance function

1989-10-20

1992-06-09

Arnold, Bruce Y.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359272, 359573, 359615, G02B 518, G02F 113, G02F 1167

Patent

active

051212390

ABSTRACT:
An optical filter having a variable spectral transmittance function of selectable shape is described which includes a spectrum forming element for dispersing a light beam into a characteristic spectrum, an optical system for forming an image of the spectrum and directing the image into a multi-element electronic spatial light modulator, such as a liquid crystal display or electrophoretic display, and an optical system for projecting the spectrally filtered light as a directed beam.

REFERENCES:
patent: 2002515 (1935-05-01), Worrall
patent: 3383460 (1968-05-01), Pritchard
patent: 3501219 (1970-03-01), Caulfield
patent: 3710015 (1973-01-01), Fowler
patent: 3729252 (1973-04-01), Nelson
patent: 4110014 (1978-08-01), Yevick
patent: 4626897 (1986-12-01), Sato et al.
patent: 4687329 (1987-08-01), Schultz
patent: 4957349 (1990-09-01), Clerc et al.

Affiliated with

Also associated with

Rating

Filter having adjustable spectral transmittance function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter having adjustable spectral transmittance function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter having adjustable spectral transmittance function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1809173