Patent for Sale:

High Quality Projector - Light Source    

Light source assemblies in digital projectors

Overview

These patents relate to light source assemblies in digital projectors. Inventions include back up light sources and various configurations and alignments of lamp assemblies, reflector assemblies and lamp receivers for projecting higher quality images.

The seller would like to be granted a license back.

The seller may consider selling these patents individually.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 353: Optics: Image Projectors

Projectors for particular types of objects to be projected; such as maps and aerial photographs, targets, transparent plates, information data, microscopic objects, scales and indicators, and stencils or perforated plates. Various other species and types of projectors are also included here such as kaleidoscopic, heliostats, stereoscopic and relief, pointers, gun type, moving images on screens, episcopes and cabinets including screens. Various plural and composite types of projectors are included such as projectors involving plural projected images including multicolor, projectors for images combined with real objects, projectors with manual delineation, and plural projection with a single light source. Projectors selective at the operators choice are also included as where the selection is between a slide and a film strip, between a cabinet and a distant screen, and between opaque and transparency projection.

Subclass 119: HOUSING
Subclass 52: TEMPERATURE CONTROL
Subclass 55: Heat filter
Subclass 57: Blower
Subclass 60: Air directed against face or back of object
Subclass 85: LAMP CONTROL
Subclass 87: Lamp position adjustable
Subclass 94: PLURAL

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 207: Light detection means (e.g., with photodetector)

Class 348: Television

Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.

Subclass 751: Liquid crystal
Subclass 794: With cabinet or housing structure
Subclass E9.027: Using light modulating optical valves (EPO)
Subclass E5.139: Involving the use of a spatial light modulator, e.g., a light valve, controlled by a video signal (EPO)

Class 349: Liquid Crystal Cells, Elements And Systems

Cells, elements, and systems which include molecules of a material having both liquid and crystalline properties. Included in this class are those which have a significant liquid crystal cell detail or liquid crystal response or properties, and in which the liquid crystal controls or changes the optical properties of electromagnetic radiation such as direction, phase, amplitude, frequency, or polarization state. This class also provides for nominal manufacturing methods for producing significant liquid crystal cell structure.

Subclass 5: Projector including liquid crystal cell (s)

Class 362: Illumination

Means and processes for casting visible radiant energy in at least one direction to render objects in that direction visible.

Subclass 285: Adjustable or repositionable light source or light source support
Subclass 288: Resiliently biased
Subclass 294: With ventilating, cooling or heat insulating means
Subclass 298: Opposed
Subclass 301: With or including planar reflecting surface
Subclass 306: With resilient means to position source or modifier
Subclass 341: Reflector
Subclass 365: With mounting means
Subclass 416: Arc lamp hanger
Subclass 418: Adjustable light support
Subclass 519: With bulb mounting means
Subclass 560: With reflective surface (e.g., mirror)
Subclass 655: Locking
Subclass 657: Male contact
Subclass 658: Exposed contacts
Subclass 659: Parallel contacts

Class 352: Optics: Motion Pictures

Structure motion picture cameras, which record motion picture cameras, upon a single actuation a series of individual photographs which are separated in time. Generally the recording rate is related to the persistence of vision when the photograph series is used to accurately portray an action. Included in this class are exhibitors which display motion pictures and the motion picture carriers for use in the exhibitors. The exhibitors may display the motion pictures by either affording the viewer a direct view of the pictures with or without the aid of optical magnifiers, or optically projecting a real image of the pictures on a surface which is visible to the viewers. The exhibitors display the individual pictures of the motion picture series sequentially at such a rate that due to the persistence of vision of the viewer an illusion of motion is created. The individual pictures of the motion picture series may be carried on an opaque or transparent base, which may be in the form of a strip, a disc, a drum or individual plates. Motion picture cameras and/or projectors with perfecting structure are also included in this class. Plural arrangements of motion picture apparatus, and motion picture apparatus which is combined with or convertible to other devices are also provided for in this class.

Subclass 146: Film cooling

Class 355: Photocopying

Apparatus and methods for photos: graphically copying information from an original or carrier that is not classified elsewhere, generally employing a concentrated source of light and an image receiving medium with a photosensitive emulsion surface. Various plural and composite types of copies are included such as those involving plural projected images including multicolor and duplex.

Subclass 30: With temperature or foreign particle control

Class 445: Electric Lamp Or Space Discharge Component Or Device Manufacturing

This is the residual and generic class of process and apparatus for the manufacturing, fabrication, repair, salvage, assembly, disassembly or other treatment of an electric lamp, liquid crystal display device or an electric space discharge device which process or apparatus is not elsewhere classified.

Subclass 44: Hermetically assembling plural parts

Class 313: Electric Lamp And Discharge Devices

This is the generic class for electric lamp and electric space discharge device structure. Examples of such devices are electric incandescent lamps, gas or vapor filled electric discharge tubes, including lamps, mercury arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission electron multipliers, spark plugs, and open air arc and spark devices.

Subclass 49: WITH DETACHABLE ELECTRICAL CONNECTOR OR SUPPORT
Subclass 318.06: Having three or more electrical contacts
Subclass 318.11: Having a reflector in combination with base

Class 359: Optical: Systems And Elements

Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.

Subclass 853: Light concentrating (e.g., heliostat, etc.), concave, or paraboloidal structure