| 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 |
| 20090046140 | Mobile Virtual Reality Projector - A spatially aware apparatus includes a projector. Projected display contents can change based on the position, motion, or orientation of the apparatus. The apparatus may include gyroscope(s), accelerometer(s), global positioning system (GPS) receiver(s), radio receiver(s), or any other devices or interfaces that detect, or provide information relating to, motion, orientation, or position of the apparatus. | 02-19-2009 |
| 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 |
| 20090128782 | MEMS Based Projector - A MEMS-based projector may be included in various user devices. A selective fold mirror, a MEMS-based projector, and a polarization rotator may be oriented to reflect a beam within the device for external projection. Alternatively, a total internal reflection prism may take the place of a selective fold mirror or a polarization rotator and may reduce the number of necessary components in the user device. Various optical components may be placed in the MEMS-based projector and arranged in different positions to reflect a light beam in a desired direction for external projection. The components that make up the MEMS-based projector may depend on the available footprint in the device and the direction in which the light beam is to be projected. Some optical components may provide multiple functionalities which would otherwise require multiple components and may reduce the size of the projector. | 05-21-2009 |
| 20090141244 | MEMS based projector having a prism - A MEMS-based projector may be included in various user devices. A selective fold mirror, a MEMS-based projector, and a polarization rotator may be oriented to reflect a beam within the device for external projection. Alternatively, a total internal reflection prism may take the place of a selective fold mirror or a polarization rotator and may reduce the number of necessary components in the user device. Various optical components may be placed in the MEMS-based projector and arranged in different positions to reflect a light beam in a desired direction for external projection. The components that make up the MEMS-based projector may depend on the available footprint in the device and the direction in which the light beam is to be projected. Some optical components may provide multiple functionalities which would otherwise require multiple components and may reduce the size of the projector. | 06-04-2009 |
| 20090167726 | Input Device for a Scanned Beam Display - Briefly, in accordance with one or more embodiments, an input device may be utilized in conjunction with a scanned beam display or the like, or may be based on the scanning platform as used in a scanned beam display such as a MEMS based scanner. An input event such as illumination of a photodetector or reflection of a scanned beam off of a retroreflector may be correlated with a timing event of the scanning platform such as a refresh signal, or a horizontal and vertical sync signals. The correlation of the timing event may be representative of an X-Y location, and in some embodiments of a Z location, that may be utilized to provide input data back to a host device. | 07-02-2009 |
| 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 |
| 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 |
| 20100002991 | Substrate Guided Relay with Polarization Rotating Apparatus - A substrate guided relay ( | 01-07-2010 |
| 20100053591 | Scanned Proximity Detection Method and Apparatus for a Scanned Image Projection System - A encoded image projection system ( | 03-04-2010 |
| 20100111472 | Substrate Guided Relay with Pupil Expanding Input Coupler - An optical substrate guided relay ( | 05-06-2010 |
| 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 |
| 20110149251 | Diffractive Optical Element Having Periodically Repeating Phase Mask and System for Reducing Perceived Speckle - A optical apparatus ( | 06-23-2011 |
