Patent application number | Description | Published |
20090015929 | SUBSTRATE-GUIDED RELAYS FOR USE WITH SCANNED BEAM LIGHT SOURCES - Substrate-guided relays that employ light guiding substrates to relay images from sources to viewers in optical display systems. The substrate-guided relays are comprised of an input coupler, an intermediate substrate, and an output coupler. In some embodiments, the output coupler is formed in a separate substrate that is coupled to the intermediate substrate. The output coupler may be placed in front of or behind the intermediate substrate, and may employ two or more partially reflective surfaces to couple light from the coupler. In some embodiments, the input coupler is coupled to the intermediate substrate in a manner that the optical axis of the input coupler intersects the optical axis of the intermediate substrate at a non-perpendicular angle. | 01-15-2009 |
20090051828 | ELECTRONIC ALIGNMENT OF PRIMARY COLOR PIXELS IN A SCANNED DISPLAY - An image generation apparatus provides correction for color offsets. Color offsets may be caused by misalignments in laser diodes or optics assemblies in a laser projector. The offsets may be measured during or after manufacture of the laser projector. An image buffer is responsive to the offset data to translate each color plane separately. The image buffer may include separately addressable portions for each color. Further, variable delay elements on the output of the image buffer may provide color offset correction. Interpolation provides further offset correction. | 02-26-2009 |
20090067057 | BURIED NUMERICAL APERTURE EXPANDER HAVING TRANSPARENT PROPERTIES - Briefly, in accordance with one or more embodiments, a buried numerical aperture expander may be utilized to provide a head-up or virtual display at a larger field of view without requiring a larger amount of space, larger sized display, or larger sized optics. The buried numerical aperture expander is capable of selectively reflecting light emanating from a display such that the reflected light is expanded into a larger field of view, while simultaneously allowing other light to be transmitted through the buried numerical aperture expander without expansion so that the buried numerical aperture expander may be deployed in conjunction with a windshield or window without adversely affecting the ability to see through buried numerical aperture expander. | 03-12-2009 |
20090190098 | Scanned Beam Display Engine with Polarizing Beam Splitter - A scanned beam projection system includes a polarizing beam splitter, a polarization rotating component and a scanning mirror. Light is directed on a first light path to the polarizing beam splitter at a substantially constant angle of incidence. The P-polarized light passes through. The P-polarized light passes through the polarization rotating component, is reflected off the scanning mirror back through the polarization rotating component, and arrives at the polarizing beam splitter as S-polarized light with a non-constant angle of incidence. The S-polarized light is reflected by the polarizing beam splitter, and a scanned image results. | 07-30-2009 |
20090195875 | Avoiding Interference Artifacts in a Head-Up Display or a Reflected See-Through Type Display - Briefly, in accordance with one or more embodiments, a birefringent layer may be utilized in conjunction with a head-up display (HUD) for a vehicle or the like, for example where the birefringent layer is disposed in or on the windshield. The birefringent layer may impart a change in the polarization of light emerging from a projector of the head-up display in order to reduce or minimize interference between beams from the display and reflecting off of two or more surfaces that are combined at the viewer's eye, and/or to reduce or minimize the effect of polarizing sunglasses on the viewability of the image projected by the display. In one or more embodiments, the birefringent layer alters the polarization of the light reaching the viewer's eye if the user is wearing polarizing glasses or lenses so that less light from the display is blocked. | 08-06-2009 |
20090201589 | Wide Field of View Head-Up Display System - A projection system, such as a system suitable for head-up displays in automobiles, includes a laser projection source ( | 08-13-2009 |
20090251788 | Optical Device for Use with Scanned Beam Light Sources - Substrate-guided relays that employ light guiding substrates to relay images from sources to viewers in optical display systems. The substrate-guided relays are comprised of an input coupler, an intermediate substrate, and an output coupler. In some embodiments, the output coupler is formed in a separate substrate that is coupled to the intermediate substrate. The output coupler may be placed in front of or behind the intermediate substrate, and may employ two or more partially reflective surfaces to couple light from the coupler. In some embodiments, the input coupler is coupled to the intermediate substrate in a manner that the optical axis of the input coupler intersects the optical axis of the intermediate substrate at a non-perpendicular angle. | 10-08-2009 |
20100046075 | EMBEDDED RELAY LENS FOR HEAD-UP DISPLAYS OR THE LIKE - Briefly, in accordance with one or more embodiments, an optical relay comprises a partially-reflective-coated Fresnel lens or similar low-profile lens such as a diffractive lens or a holographic lens having a first index of refraction and a filler medium having a second index of refraction and being disposed adjacent to the Fresnel lens. The optical relay enables the optical power of the Fresnel or similar low-profile lens embedded within the two layers to influence a beam that is reflected from the optical relay while allowing transmitted light to experience little or no influence from the embedded lens. | 02-25-2010 |
20100097534 | Projection System Using High-Frequency Drive Modulation to Reduce Perceived Speckle - An image producing system ( | 04-22-2010 |
20100201953 | Substrate-Guided Display Having Polarization Selective Input Structure - A display system includes and image-guiding substrate with input and/or output structures configured to improve image quality. | 08-12-2010 |
20100202034 | Substrate-Guided Display with Improved Image Quality - A display system includes and image-guiding substrate with input and/or output structures configured to improve image quality. | 08-12-2010 |
20100232005 | Speckle Reduction in Display Systems Using Transverse Phase Modulation in A Non-Image Plane - Briefly, in accordance with one or more embodiments, a scanned beam display comprises one or more light sources to generate one or more light beams, a scanner module to receive the one or more light beams to generate a displayed image via scanning of the light beams onto a projection surface, and a spatial phase modulator disposed between the light source and the scanner module to phase modulate the one or more light beams to provide speckle reduction in the display image projected onto the projection surface. | 09-16-2010 |
20100265420 | Scanned Projection System Using Polymerized Liquid Crystal Layer for Speckle Reduction - An imaging system ( | 10-21-2010 |
20100265466 | Laser Projection Source with Birefringent Wedge for Speckle Reduction - An imaging system ( | 10-21-2010 |
20100265467 | Laser Projection Source with Polarization Diversity Element for Speckle Reduction - An imaging system ( | 10-21-2010 |
20100315597 | Apparent Speckle Reduction Via Beam Offset Diversity in Pupil Space - Briefly, in accordance with one or more embodiments, beam position diversity or beam offset diversity in pupil space performs the complement to angular diversity by maintaining angular content of a beam while changing its position and/or polarization properties in pupil space over time. | 12-16-2010 |
20110013097 | Correcting Scanned Projector Distortion By Varying the Scan Amplitude - Briefly, in accordance with one or more embodiments, scanned beam projector may comprise a light source, a scan drive and a scanning platform to project an image onto a projection surface. The scan drive circuit is capable of at least partially correcting distortion in the projected image by varying an amplitude of the scan drive signal to at least partially compensate for the distortion in the projected image. | 01-20-2011 |
20110018986 | Integrated Photonics Module and Devices Using Integrated Photonics Modules - An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors. | 01-27-2011 |
20110025930 | Integrated Photonics Module and Devices Using Integrated Photonics Modules - An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors. | 02-03-2011 |
20110025983 | Integrated Photonics Module and Devices Using Integrated Photonics Modules - An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors. | 02-03-2011 |
20110063574 | Three-Dimensional Display Using an Invisible Wavelength Light Source - Briefly, in accordance with one or more embodiments, a full color image and an invisible wavelength monochrome image are projected onto a display screen via a scanning platform of a scanned beam display. The monochrome image is re-radiated from a Photoluminescent material of the display screen as a visible wavelength monochrome image. The overall image may be viewed by a viewer as a three-dimensional image by providing the monochrome image to a first eye of the user without the full color image, and providing the full color image to a second eye of the user without the monochrome image. | 03-17-2011 |
20110069084 | IMAGE GENERATION WITH INTERPOLATION OF PIXELS ON A GRID TO PIXELS ON A SCAN TRAJECTORY - An image generation apparatus provides interpolation and distortion correction. The interpolation and distortion correction may be provided in one or two dimensions. Nonlinear image scan trajectories, such as sinusoidal and bi-sinusoidal trajectories are accommodated. Horizontal and vertical scan positions are determined using a linear pixel clock, and displayed pixel intensities are determined using interpolation techniques. | 03-24-2011 |
20110149251 | Diffractive Optical Element Having Periodically Repeating Phase Mask and System for Reducing Perceived Speckle - A optical apparatus ( | 06-23-2011 |
20110234919 | Integrated Photonics Module and Devices Using Integrated Photonics Modules - An integrated photonics module may include a selective fold mirror configured to pass at least a portion of emitted light toward the MEMS scanner and reflect scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors. | 09-29-2011 |
20120001834 | Scanned Beam Display Having a Redirected Exit Cone - Briefly, in accordance with one or more embodiments, a scanned beam display, comprises a light source to generate a beam to be scanned and a scanning platform to scan the beam into an exit cone. The scanning platform receives the beam at a selected feed angle, and the scanning platform has a surface structure to redirect the exit cone at an exit angle that is less than the feed angle. | 01-05-2012 |
20120013852 | Alternating Beam Laser Imaging System with Reduced Speckle - An imaging system ( | 01-19-2012 |
20120013855 | Laser Scanning Imaging System with Reduced Speckle - An imaging system ( | 01-19-2012 |
20120069415 | Scanning Projector with Dynamic Scan Angle - A scanning projector includes a MEMS device with a scanning mirror that sweeps a beam in two dimensions. Actuating circuits receive scan angle information and provide signal stimulus to the MEMS device to control the amount of mirror deflection on two axes. The period of movement on one or both axes may be modified to effect changes in line density in a resultant display. | 03-22-2012 |
20130016321 | Active Polarization Switch for Speckle Reduction in Laser Projection SourcesAANM Duelli; MarkusAACI SeattleAAST WAAACO USAAGP Duelli; Markus Seattle WA USAANM Freeman; Mark O.AACI SnohomishAAST WAAACO USAAGP Freeman; Mark O. Snohomish WA USAANM DeJong; Christian DeanAACI SammamishAAST WAAACO USAAGP DeJong; Christian Dean Sammamish WA USAANM Lescure; Alban N.AACI Les MureauxAACO FRAAGP Lescure; Alban N. Les Mureaux FR - A laser-based imaging system ( | 01-17-2013 |
20130038837 | Mixed Polarization Imaging System for Three-Dimensional Projection and Corresponding Methods - An imaging system ( | 02-14-2013 |
20130120428 | Mobile Projector with Position Dependent Display - A projection apparatus memorizes settings as a function of location, orientation, elevation, or any combination. The projection apparatus recalls the settings when the location, orientation, elevation, or combination of the projection apparatus matches memorized values. Memorized settings may include projector settings, image source settings, audio output settings, audio source settings, and the like. | 05-16-2013 |
20130142383 | Scanned Image Projection System with Gesture Control Input - An imaging system ( | 06-06-2013 |