Dielectric bootlace lens

Details Dielectric bootlace lens Dielectric bootlace lens

1998-09-03

1999-11-02

Epps, Georgia

Optical: systems and elements

Lens

With diverse refracting element

359741, 359619, 359620, 343911R, 343753, 362 11, G20B 300, G20B 2710, H01Q 1508, H01Q 1906

Patent

active

059781572

ABSTRACT:
A lens is fabricated of an array of parallel rod-shaped dielectric waveguides extending from a generally planar front surface of the array, this front surface constituting a front surface of the lens, to a concave back surface of the array, this back surface constituting a back surface of the lens. The wavguides vary in length, from a maximum length at an outer region of the lens to a minimum length at a central region of the array, to provide the concave back surface. The back lens surface envelops a receptor of radiant energy located at a focus of the lens. This configuration of lens provides an increased spherical angle of impingement of the incident radiation upon the receptor.

REFERENCES:
patent: 2547416 (1951-04-01), Skellett
patent: 4321604 (1982-03-01), Ajioka
patent: 4571591 (1986-02-01), Valentino et al.
patent: 4804970 (1989-02-01), Todd
patent: 5661499 (1997-08-01), Epshtein et al.
patent: 5677796 (1997-10-01), Zimmerman et al.
patent: 5808806 (1998-09-01), Guhman et al.

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