Eugene G Olczak

6353502, Mar 5, 2002

Jun 13, 2000

09/593105

Alan B. Marchant - Fairport NY
Eugene G. Olczak - Rochester NY

Eastman Kodak Company - Rochester NY

G02B 2710

359626, 359619, 359641

Apparatus for collimating multiple laser beams from a Vertical Cavity Surface Emitting Laser (VCSEL) array and directing the collimated beams through a common aperture includes a VCSEL array including at least two VCSEL sources disposed in a spatial pattern and each VCSEL source emitting a divergent laser beam; a microlens array with lenslet elements disposed in a spatial pattern geometrically similar to the pattern of sources on the VCSEL array, said lenslet pattern being scaled to a smaller dimension than the VCSEL source pattern and arranged to receive the divergent laser beams; and the microlens array being arranged so that the lenslet surface of the microlens array is maintained at a distance from the VCSEL array substantially equal to the focal length of the lenslets to substantially collimate the beams and also being maintained in a lateral orientation so that each beam passes through a corresponding microlens in the microlens array causing the laser beam from each VCSEL source to be directed through a common aperture.

6385147, May 7, 2002

Jan 4, 2000

09/478120

Eugene G. Olczak - Rochester NY

Eastman Kodak Company - Rochester NY

G11B 700

369 4438, 36911229, 36912402, 369 5331

Apparatus for simultaneously recording and reading information on a medium moveable in forward and reverse directions includes a first record laser and means for establishing a first beam path for recording information on the moveable medium and a second read laser and at least one read-out detector and means for establishing a beam path so that the light from the second laser illuminates the medium and is reflected to the detector which reads recorded information. The apparatus further adjusts the relative position of the first and second laser beam paths so that, in a first position, when the medium is moving in the forward direction, the first and second laser paths are arranged in close proximity so that the detector reads information which was just previously recorded by the record laser and that, in the second position, when the medium is moving in the reverse direction, the first and second laser paths are arranged in close proximity so that the detector reads information which was just previously recorded by the record laser.

6442126, Aug 27, 2002

Jan 3, 2000

09/476571

Alan B. Marchant - Fairport NY
Eugene G. Olczak - Rochester NY

Eastman Kodak Company - Rochester NY

G11B 700

36911217, 369 5322, 369120

Apparatus for simultaneously recording and reading information on a medium moveable in forward and reverse directions includes a first record laser and means for establishing a first beam path for recording information on the moveable medium and a second read laser and at least a first and second read-out detector respectively associated with the forward and reversed directions of the recording medium and means for establishing two beam paths which direct the laser light to positions forward and rearward from where the first laser beam illuminates the medium and such read laser beams are reflected respectively to the first and second detectors. The apparatus further includes means to select either the first or the second read-out detectors and to process information read by such selected detector so that as the medium is moving in the forward direction, the data are read from the first detector and when the medium is moving in the reverse direction. the data are read from the second detector.

6779920, Aug 24, 2004

Feb 28, 2002

09/683895

Ljubisa Dragoljub Stevanovic - Montreal, CA
Eugene George Olczak - Glenville NY
Frank Jacob John Mueller - Scotia NY
Dietmar Karl Sundermann - Fontenay-les-Briis, FR

General Electric Company - Niskayuna NY

G21K 700

378206

An X-ray localizer light system comprises: a long life X-ray localizer light source; an optical concentrator, the light source being situated at a first focal spot, the optical concentrator being configured for concentrating X-ray localizer light from the light source to a second focal spot; and an opaque shield having an aperture therein situated proximate to the second focal spot and being of such a geometrical shape so as to maximize light throughput while meeting light field edge contrast requirements. In another light system, the optical concentrator comprises a reflector comprising a quasi-ellipsoidal portion within which the light source is situated, a cylindrical portion situated between the quasi-ellipsoidal portion and the shield for reflecting stray light, a back reflector portion situated proximate to the shield, and a centrally-mounted portion situated between the aperture and the light source for directing back-reflected light in the direction of the aperture.

6811274, Nov 2, 2004

Dec 4, 2002

10/065957

Eugene Olczak - Glenville NY

General Electric Company - Schenectady NY

F21V 704

362 31, 362 26, 362551, 362556, 362558, 362520, 362561, 362511, 362583, 362593, 359487

A polarization sensitive optical substrate comprises a planar surface and a first thin film applied to the planar surface. The first film has a thickness of /4/h, where is the wavelength of light incident upon the first film and n is the refractive index of the first film. A prismatic surface is optionally also thin film coated, and is in opposition to the planar surface.

6844970, Jan 18, 2005

May 3, 2001

09/681591

Eugene George Olczak - Glenville NY, US

General Electric Company - Niskayuna NY

G03B 2156

359460

RD 29133-17-A method for facilitating a reduction of speckle in a screen receiving light from a light source includes positioning at least one optical path distributing screen element such that the light originating from the light source passes through the screen element and emerges decorrelated from the screen element toward an audience space. The method further includes positioning an angular distribution element between the screen element and the audience space such that the angular distribution element distributes the decorrelated light from the screen element toward the audience space.

6862141, Mar 1, 2005

May 20, 2002

10/150958

Eugene George Olczak - Glenville NY, US

General Electric Company - Schenectady NY

G02B027/10
G02B027/46

359621, 359561

An optical surface substrate. The optical substrate features a three-dimensional surface having a correlation length of about 1 cm or less. The optical substrate is defined by a first surface structure function modulated by a second surface structure function, the first surface structure function producing at least one specular component from a first input beam of light. The optical substrate is suitable for use in a variety of applications, including brightness enhancement and projection devices.

6893145, May 17, 2005

Feb 20, 2004

10/784486

Ljubisa Dragoljub Stevanovic - Montreal, CA
Eugene George Olczak - Glenville NY, US
Frank Jacob John Mueller - Scotia NY, US
Dietmar Karl Sundermann - Fontenay-les-Briis, FR

General Electric Company - Niskayuna NY

F21S013/14

362257, 362302, 362303, 362350

An X-ray localizer light system comprises: a long life X-ray localizer light source; an optical concentrator, the light source being situated at a first focal spot, the optical concentrator being configured for concentrating X-ray localizer light from the light source to a second focal spot; and an opaque shield having an aperture therein situated proximate to the second focal spot and being of such a geometrical shape so as to maximize light throughput while meeting light field edge contrast requirements. In another light system, the optical concentrator comprises a reflector comprising a quasi-ellipsoidal portion within which the light source is situated, a cylindrical portion situated between the quasi-ellipsoidal portion and the shield for reflecting stray light, a back reflector portion situated proximate to the shield, and a centrally-mounted portion situated between the aperture and the light source for directing back-reflected light in the direction of the aperture.