Texas Instruments Corporation

Steven Paul Krycho

Bryan R Teichgraeber

Steven Monroe Penn

D Scott Dewald

Sajjad Ali Khan

Vikrant R Bhakta

Frank Joseph Poradish

Scott Patrick Overmann

In described examples, one or more devices include: a light source to generate a beam of light; and optics to generate a spot of light in response to the beam of light. A color wheel revolves in a direction of rotation about an axis, so the spot of light illuminates an area of the color wheel. The spot of light has: a first width; and a second width wider than the first width and orthogonal to the first width. The first width is aligned tangential to the direction of rotation.

Assymetric spot area spoke reduction

Provided is a method and system for reducing speckle in an image produced from a light source. The method, in one embodiment, includes providing a line generating element, the line generating element having a collection of optical elements having an axis. The method, in this embodiment, further includes directing an input beam of light at the line generating element while the line generating element is being vibrated back and forth in a direction substantially transverse to the axis.

Method and system for reducing speckle by vibrating a line generating element

To improve the cooling efficiency and ensure uniform cooling of all portions of the inside back surface of the reflector, a deflector () has been developed. The air deflector () typically encircles the lamp () allowing air () to flow between the deflector () and the lamp (). This air () cools the lamp (). Air () passing between the deflector () and the reflector () is deflected outward to cool the inside surface of the reflector near the lamp (). Because the deflector () is small and is located directly behind the lamp (), it does not block any of the useful light generated by the lamp (). The light striking the deflector () from the lamp (), if not for the deflector (), would have passed through the opening in the reflector () and would have been lost. The deflector () typically has a number of vanes around the perimeter of a cylindrical body portion. The vanes are bent outward at an angle sufficient to force part of the cooling air to flow across the inside back surface of the reflector.

Lamp reflector cooling air deflector

An optical system and method of increasing the contrast of a projected image. The optical system () comprises a combination of aperture stops () in at least one of the illumination and projection paths to filter scattered light and/or light prone to scatter into the projection aperture.

Illumination aperture for projection display

An alignment tool ( ) designed to replace a high-powered lamp with a low-powered lamp to facilitate safe alignment of a projector lamp console. The alignment tool ( ) comprised of a cathode portion ( ) and an anode portion ( ) connected by one or more rods ( ). The alignment tool holds a light source such as a flashlight ( ) having an exposed bulb ( ) in the approximate location of the arc of the high-powered lamp. The cathode and anode sockets and the reflector of the projector lamp console are adjusted until the exposed bulb ( ) is at the F1 focal point of the reflector and the optical axis of the alignment tool is the optical axis of the reflector.

Growing community of inventors

Plano, TX, United States of America

Steven Paul Krycho