Patent application number | Description | Published |
20110038390 | MULTI-PLATE COMPOSITE VOLUME BRAGG GRATINGS, SYSTEMS AND METHODS OF USE THEREOF - Variations of composite volume Bragg grating devices and methods for creating same are disclosed. Also, variations of chirped pulse amplification laser systems, and system portions, that make use of a composite volume Bragg grating device for pulse stretching and/or compression are disclosed. | 02-17-2011 |
20130279528 | OPTICALLY LOCKED HIGH ENERGY OPO-OPA - Systems and methods for producing high-energy, pico-second laser pulses are disclosed. Systems and methods include using a modelocked laser source to drive an OPO (optical parametric oscillator) and an OPA (optical parametric amplifier) such that the OPA and OPO self-synchronize without the use of separate synchronization components and produce high-energy output without requiring pulse stretchers or pulse compressors, making the laser system viable for portability and vehicle mounting from both cost and durability standpoints. | 10-24-2013 |
20130279529 | COMPACT HIGH ENERGY MID WAVE OPCPA LASER - Systems and methods of optical parametric chirped pulse amplification for laser pulses are provided. Techniques and components include replacing pulse stretcher and/or pulse compressors with chirped volume Bragg gratings (CVBGs) to reduce size, weight, cost, and environmental sensitivity of the laser system. | 10-24-2013 |
20140062652 | ITEM AUTHENTICATION - Mechanisms for validating the authenticity of an item. A reader device records authentication data that is obscured in a label. The authentication data is provided to a remote authentication server via a network. The reader device receives, from the remote authentication server, an authentication response based on the authentication data. Based at least in part on the authentication response, the reader device displays an indication that identifies whether the item is authentic. | 03-06-2014 |
20140126042 | SYSTEM AND METHOD TO EFFICIENTLY FILTER RADIATION ABOVE A PREDEFINED WAVELENGTH - A system including a light source and at least a first filter, having a front surface and a rear surface, positioned in a path of radiation from the light source, the at least first filter further comprising a reflective coating applied to a front surface of the at least first filter to reflect radiation off the front surface at a predefined wavelength. The front surface and the rear surface of the at least first filter are oriented in a non-parallel arrangement with respect to each other such that an angle is formed between the front surface and the rear surface. The non-parallel arrangement is configured to capture radiation unfiltered by the reflective coating and to re-direct the unfiltered radiation. Another system and a method are also disclosed. | 05-08-2014 |
20150215509 | LATENT FINGERPRINT DETECTION - Systems, devices, and methods for detecting a contaminant on a substrate are discussed herein. Variations of such systems, devices, and methods may include one or snore illumination sources that emit illumination at one or more desired wavelength ranges to illuminate one or more areas on the substrate; where the desired wavelength range is one that is absorbed by the contaminant while causing the substrate to fluoresce. Such fluorescence may be detected with a visible-spectrum detector, which will also detect the contaminant as a darker contrast area against the fluorescence. In some variations, an illumination source includes a broad-spectrum light source and a waveband filtering device that filters all but the desired illumination waveband out of the broad-spectrum light generated by the broad-spectrum light source. | 07-30-2015 |
20150241350 | LATENT FINGERPRINT DETECTION - Systems, devices, and methods for detecting a contaminant on a substrate are discussed herein. Variations of such systems, devices, and methods may include one or more illumination sources that emit illumination at one or more desired wavelength ranges to illuminate one or more areas on the substrate; where the desired wavelength range is one that is absorbed by the contaminant while causing the substrate to fluoresce. Such fluorescence may be detected with a visible-spectrum detector, which will also detect the contaminant as a darker contrast area against the fluorescence. In some variations, an illumination source includes a broad-spectrum light source and a waveband filtering device that filters all but the desired illumination waveband out of the broad-spectrum light generated by the broad-spectrum light source. | 08-27-2015 |
20150268547 | REMOVING AND RECOMBINING A PORTION OF A PROJECTED LIGHT STREAM - Mechanisms for clipping, or diverting, a portion of a projected light stream and seamlessly recombining the diverted portion with the projected light stream on a display surface are disclosed. A reflective surface having a shape diverts a portion of a projected light stream from a first optical path between a projector and a display surface to an imaging system outside of the first optical path. The imaging system focuses the portion at a focal plane that is coplanar with the display surface to generate a focused portion based at least on a distance between the imaging system and the display surface. The focused portion is issued through an aperture having the shape to combine the focused portion with the projected light stream on the display surface. | 09-24-2015 |
20150271463 | ADDING CONTENT TO A PROGRAM - Mechanisms for adding content to a projected light stream are disclosed. A polarization rotation panel receives content and generates a polarization rotation pattern based on the content. The polarization rotation panel receives at least a first portion of a first projected light stream that has a first polarization orientation. The first polarization orientation of a sub-portion of the at least the first portion of the first projected light stream is rotated an offset amount to a first offset polarization orientation in accordance with the polarization rotation pattern, and the at least the first portion of the first projected light stream and the sub-portion are issued in a downstream direction. | 09-24-2015 |