Chromatic focal pencil beam-generating apparatus

Details Chromatic focal pencil beam-generating apparatus Chromatic focal pencil beam-generating apparatus

1995-02-09

1997-03-11

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 19, 359 15, 359615, 369 4423, G02B 532, G02B 504, G11B 700

Patent

active

056107340

ABSTRACT:
An optical system is disclosed which focuses a polychromatic source to an extended focal pencil. The implementation makes use of two holographic optical elements (HOEs) fabricated and aligned to form a deliberate longitudinal color dispersion, but to alleviate lateral chromatic effects. Consequently, the HOE doublet focuses different wavelengths of the source to different locations along the optical axis. The strong intensity of the focused wavelengths dominate at each location, so that the overall beam has a near-diffraction-limited 1/e.sup.2 spot size and suffers only relatively weak background illumination. An alternative optical system using bulk lenses and several possible applications for the device are also described.

REFERENCES:
patent: 3185021 (1965-05-01), Thompson
patent: 3707687 (1972-12-01), Hercher et al.
patent: 4779943 (1988-10-01), Tatsuno et al.
patent: 4832464 (1989-05-01), Kato et al.
patent: 4981332 (1991-01-01), Smith
patent: 5363220 (1994-11-01), Kuwayama et al.

Affiliated with

Also associated with

Rating

Chromatic focal pencil beam-generating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chromatic focal pencil beam-generating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromatic focal pencil beam-generating apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-447735