Optical device with means for reducing internal reflections

Details Optical device with means for reducing internal reflections Optical device with means for reducing internal reflections

1972-10-10

1977-01-25

Husack, Ralph

Single-crystal, oriented-crystal, and epitaxy growth processes;

Organic compound containing single-crystal {c30b 29/54}

Tartrate containing (e.g., rochelle salt) {c30b 29/56}

117 333, 117124A, 117124D, 117124E, 117168, 350165, 350276, G02b 522, B32b 1706

Patent

active

040048519

ABSTRACT:
The outer surface of a transparent optical mass is directly coated with an internal reflection suppressing coating having an index of refraction smaller than that of the optical mass for suppressing internal reflections of light passing through the mass at angles of incidence to the surface greater than the critical angle. The coating includes a dispersing medium and a material in the form of light absorbing particles having dimensions smaller than one-fifth of the wavelength of visible light dispersed in the medium. The particles have a sufficient density near the surface to absorb a major portion of visible light at all wavelengths incident upon the surface through the mass at angles of incidence greater than the critical angle.

REFERENCES:
patent: 1631421 (1927-06-01), Lohofer
patent: 3039349 (1962-06-01), Rodgers
patent: 3062103 (1962-11-01), Bolz
patent: 3298959 (1967-01-01), Marks
patent: 3509063 (1970-04-01), Teague
Harrick, "Total Internal Reflection and its Application to Surface Studies," in Annals of N.Y., Acad. Sci., 101, pp. 928-959, 1963.
Sease, "Halation" in American Cinematographer, p. 14, July, 1931.

Affiliated with

Also associated with

Rating

Optical device with means for reducing internal reflections does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical device with means for reducing internal reflections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device with means for reducing internal reflections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476545