Donald S Servaes

US Patent:

45602352, Dec 24, 1985

Filed:

Sep 22, 1982

Appl. No.:

6/421687

Inventors:

Donald A. Servaes - Burlington MA
George O. Reynolds - Waban MA

Assignee:

Honeywell Inc. - Minneapolis MN

International Classification:

G02B 517

US Classification:

350 9624

Abstract:

An optical condensing device for use in combination with an optical imaging system to provide an image with improved contrast and resolution. The device uses a shaped fiber optic bundle coupled to a source of illumination to provide a plurality of coherent point sources, each of which is incoherent to each other, to illuminate the aperture of the optical system. The relative incoherence of each point source is achieved by varying the length of fibers in the shaped bundle so that no fiber is within the coherence length of any other fiber.

US Patent:

49021001, Feb 20, 1990

Filed:

Jun 2, 1986

Appl. No.:

6/869519

Inventors:

George O. Reynolds - Waban MA
Donald A. Servaes - Burlington MA

Assignee:

Honeywell Inc. - Minneapolis MN

International Classification:

G02B 2756
G02B
G02B
G02B 532

US Classification:

350320

Abstract:

A method and apparatus are disclosed for correcting complex phase aberrations in a thick window in an airborne vehicle using the technique of phase conjunction. A conjugate element of the window is fabricated by machining. The conjugate element and an imaging lens are positioned behind the window such that the window is imaged onto the conjugate element. Phase aberrations produced when broadband radiation is passed through the window are removed when the wavefront passes through the imaging lens and conjugate element. In another embodiment, halogram is prepared of the wavefront passing through the window. The spatial phase information encoded in the hologram is read out by a phase measurement system and then fed into a computer where the conjugate wavefront is calculated. The conjugate wavefront is then written into a thin corrector plate of refractive material. The corrector plate with the conjugate wavefront imprinted thereon is then placed at the location where the hologram was initially formed.

Address:

66 Hillcrest Rd, Braintree, MA 02184

VIN:

2CNDL23F676031111

Make:

CHEVROLET

Model:

EQUINOX

Year:

2007