1
John Popovich, David G Pelka, William A Parkyn, Michael J Popovich, Eric D Pelka: Lighting apparatus. Teledyne Lighting and Display Products, Kirkpatrick & Lockhart, June 24, 2003: US06582103 (255 worldwide citation)

An illumination apparatus provides an output with high spatial uniformity of luminance. The illumination apparatus includes a cavity that has reflective surfaces and an output area. At least one light source is disposed in the cavity, with the light source including a point source (such as an LED) a ...


2
David G Pelka, John Popovich: Lighting apparatus having low profile. Teledyne Lighting and Display Products, Knobbe Martens Olson & Bear, October 29, 2002: US06473554 (181 worldwide citation)

Disclosed is a low profile lighting apparatus that is particularly advantageous for use as a backlight for illuminating a display. The lighting apparatus includes a waveguide coupled to a light source for injecting light into the waveguide. The waveguide includes a plurality of elongate structures f ...


3
William A Parkyn Jr, David G Pelka: Light extraction from LEDs with light pipes. Teledyne Lighting and Display Products, Kirkpatrick & Lockhart, May 6, 2003: US06560038 (145 worldwide citation)

A non-imaging optical coupler that is a figure of revolution combining a light-transmitting body defining a recessed input cavity, a transparent droplet-shaped encapsulant of a light-emitting diode, or array of diodes in the cavity, the body having a curved side wall shaped to totally internally ref ...


4
David G Pelka, William A Parkyn: Strip lighting apparatus and method. Teledyne Lighting and Display Products, Kirkpatrick & Lockhart, October 28, 2003: US06637924 (122 worldwide citation)

An illumination apparatus comprises an elongated waveguide having proximal and distal ends and a central longitudinal axis. The waveguide includes an elongated forward side for outputting light and an elongated rearward side having an elongated reflective surface for reflecting light towards the for ...


5
George W Panagotacos, David G Pelka: Flexible lighting segment. Teledyne Lighting and Display Products, Kirkpatrick & Lockhart, May 20, 2003: US06566824 (120 worldwide citation)

An illumination apparatus comprises a lighting segment that includes a plurality of lighting sections. Each of the sections comprises a printed circuit board having a solid state optical emitter mounted thereon. The sections are interconnected by printed circuit board connectors, which serially posi ...


6
Philip L Gleckman: Light source utilizing reflective cavity having sloped side surfaces. Teledyne Lighting and Display Products, Knobbe Martens Olson & Bear, November 6, 2001: US06313892 (119 worldwide citation)

A light source for illuminating a display panel comprises a light-emitting device such as an incandescent light bulb or LED array disposed within a cavity having diffusely reflecting walls and an aperture. In one embodiment, a diffuser and brightness enhancing film are situated proximate the opening ...


7
William A Parkyn Jr: Illuminating lens designed by extrinsic differential geometry. Teledyne Lighting and Display Products, William W Haefliger, July 20, 1999: US05924788 (114 worldwide citation)

An illumination system with a prescribed output pattern comprising a light source and an optical lens redirecting the light of the source into an output beam, the lens with multiple surfaces at least one of which has a shape that is not a surface of revolution, the shape generated by the following m ...


8
William A Parkyn Jr: Illuminating lens designed by extrinsic differential geometry. Teledyne Lighting and Display Products, William W Haefliger, August 14, 2001: US06273596 (113 worldwide citation)

A grid defining illumination cells having areas to pass light from a source for use in generation of a lines, wherein the grid is defined by first lines extending about one axis defined by the source, and second lines emanating from the axis to intersect first lines, each cell having four edges defi ...


9
Philip L Gleckman: Light source utilizing diffusive reflective cavity. Teledyne Lighting and Display Products, Knobbe Martens Olson & Bear, March 28, 2000: US06043591 (96 worldwide citation)

A light source for backlighting a display comprises a light-emitting device such as an incandescent bulb or LED array disposed within a cavity having diffusely reflecting walls and an aperture. A diffuser and brightness enhancing film are situated at the opening of the aperture between the aperture ...


10
Philip L Gleckman: Backlighting apparatus for uniformly illuminating a display panel. Teledyne Lighting and Display Products, Robert J Pugh, April 6, 1999: US05892325 (89 worldwide citation)

A light source for backlighting a display panel comprises a light-emitting device such as an incandescent light bulb or LED array disposed within a cavity having diffusely reflecting walls and an aperture. A diffuser and brightness enhancing film are situated proximate the opening of the aperture wh ...