Raytheon Company

Texas Instruments Corporation

The Mead Corporation

David H Rester

James M Florence

Paul Klocek

Robert B Chipper

James T Hoggins

Brent L Sisney

James Jay Hudgens

Daniel J Murphy

John Anthony Tejada

Chung C Wang

William R Beaudet

Wayne A Weimer

Mark A Culpepper

An optical apparatus () includes a base member () with a plurality of grooves (), and includes a respective lens () fixedly mounted in each groove. Optical filters () are mounted on the support member in predetermined locations. One such lens is fixedly secured to an input optical fiber (), and the input fiber is used to introduce radiation into the apparatus. Several output optical fibers () are successively positioned in relation to respective lenses by a fiber positioner (), which monitors the amount of radiation passing through the fiber being positioned, and then causes a laser () to fuse the fiber end to the associated lens in a selected position.

Method and apparatus for effecting alignment in an optical apparatus

A vehicle ( ) includes an infrared imaging system ( ). The system includes an infrared camera ( ) positioned in the center of the front grille of the vehicle. The infrared camera includes a window ( ) that has a holographic fringe pattern ( ) which cooperates with visible light rays ( ) to generate an image ( ) that is visible at a location spaced from the vehicle. The visible image may, for example, be a trademark or other symbol identifying the manufacturer of the vehicle. Infrared radiation ( ) passes through the element and the structure thereof without significant change, and is detected by an infrared detector ( ). A visible image corresponding to the infrared radiation is ultimately displayed by a head up display ( ) on a portion ( ) of the vehicle windshield ( ).

Method and apparatus for generating a visible image with an infrared transmissive window

An apparatus includes a support section which supports a further section, an optically transmissive substrate, and a dispersive section, the further section transporting plural signal components at respective frequencies along a path of travel. A plurality of optical fibers have ends fixedly coupled to a surface on the substrate. The dispersive section has a dispersive characteristic which deviates a direction of travel of each signal component by a respective different amount to optically map each signal component between the end portion of a respective fiber and the path of travel in the further section. During assembly, the fiber ends are moved relative to the surface while radiation passing through them is monitored, and then they are fixedly coupled to the surface in a selected position.

An apparatus for processing optical signals includes a cladding material having therein at least two elongate core regions which serve as respective waveguides. A coupling portion therein includes adjacent and parallel portions of the two waveguides which extend sufficiently closely for a sufficient distance to permit coupling of radiation between these waveguide portions. Structure is provided that respectively permits and frustrates such coupling for respective component signals having respective different wavelengths. The coupling portion may optionally include an externally controlled switching section that can have a selected one of two states in which is respectively transmissive and nontransmissive to radiation.

Apparatus for separating and/or combining optical signals, and methods of making and operating it

A method of using a display system having a spatial light modulator (14) to display holographic images. The spatial light modulator (14) generates images that represent vertical strips of a hologram. These images are de-magnified by a three-dimensional optics unit (18), in the horizontal direction so as to form image strips. A scanning mirror (45) scans the image strips in a series across an image plane at a rate sufficiently fast that the viewer perceives a composite hologram comprised of these image strips.

Holographic 3-D display system with spatial light modulator

A fluid jet print head for producing a plurality of jet drop streams of fluid includes a manifold defining an elongated cavity and an orifice plate defining a plurality of orifices, arranged in at least one row, which communicate with the cavity. A transducer arrangement, including a piezoelectric means, is mounted in the cavity and is spaced from the orifice plate so as to define a fluid reservoir therebetween. The transducer arrangement further includes acoustic isolation material which surrounds the piezoelectric means and supports the piezoelectric means in the cavity. The transducer means, when electrically excited, produces pressure waves of substantially uniform wave front which travel through the fluid in the reservoir toward the orifice plate and cause break up into jet drop streams of fluid flowing through the orifices. The piezoelectric means may include an elongated transducer which defines a plurality of slots extending alternately from opposite sides of the transducer partially therethrough. Each of the slots is substantially perpendicular to the row or rows of orifices. The slots prevent wave propagation along the transducer. Alternatively, the piezoelectric means may include a plurality of transducers arranged in at least one transducer row extending in a direction substantially parallel to the row of orifices.

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Dallas, TX, United States of America

David H Rester