Abstract: A video signal termination detection system includes an input configured to connect to a video driver that produces a video signal, an output configured to connect to a video receiver that operates with a signal type, a detection circuit connected between the input and the output and configured to detect the signal type of the video receiver and to output a detection signal, and a conversion circuit configured to receive the video signal from the video driver and to convert the video signal to the signal type if the video signal is different than the signal type.

Abstract: A surveillance device includes a circuit card assembly disposed in a housing and a plurality of light emitting diodes disposed on the circuit card assembly, each of the plurality of light emitting diodes configured to emit a narrow beam of light. The surveillance device further includes a diffuser disposed in the housing, the diffuser configured to spread the narrow beam of light and a Fresnel lens disposed in the housing, the Fresnel lens configured to spread and redirect light emitted from the diffuser.

Abstract: A video signal termination detection system includes an input configured to connect to a video driver that produces a video signal, an output configured to connect to a video receiver that operates with a signal type, a detection circuit connected between the input and the output and configured to detect the signal type of the video receiver and to output a detection signal, and a conversion circuit configured to receive the video signal from the video driver and to convert the video signal to the signal type if the video signal is different than the signal type.

Abstract: A surveillance device includes a circuit card assembly disposed in a housing and a plurality of light emitting diodes disposed on the circuit card assembly, each of the plurality of light emitting diodes configured to emit a narrow beam of light. The surveillance device further includes a diffuser disposed in the housing, the diffuser configured to spread the narrow beam of light and a Fresnel lens disposed in the housing, the Fresnel lens configured to spread and redirect light emitted from the diffuser.

Abstract: A light detection and ranging system includes a mirror unit rotating around a scan axis. The mirror unit includes a receiving portion and a transmitting portion offset by an angle about the scan axis relative to a surface plane of the receiving portion. Respective centroids of the receiving and transmitting portions are positioned at a common point on the scan axis while the receiving and transmitting portions rotate around the scan axis. A transmitter transmits a light pulse toward the mirror unit. The transmitting portion is positioned to reflect the light pulse toward a target. A receiver is positioned to reflect the light pulse reflected from the target toward the receiver. The angle offset compensates for a change between a cone of illumination of the transmitting portion and a field-of-view of the receiving portion resulting from the rotation of the mirror unit.

Abstract: A LADAR has adjustable operational parameters to accommodate surveillance of a particular site. The LADAR includes a controller, a laser source governed by the controller to generate a laser beam pulsed at a pulse repetition rate, an optical scanner, a first set of optics, a first drive assembly governed by the controller, a second drive assembly governed by the controller, a light detector, a second set of optics for guiding laser echo pulses, and a processor coupled to the light detector to accommodate surveillance of the particular site.

Abstract: A light detection and ranging system includes a mirror unit rotating around a scan axis. The mirror unit includes a receiving portion and a transmitting portion offset by an angle about the scan axis relative to a surface plane of the receiving portion. Respective centroids of the receiving and transmitting portions are positioned at a common point on the scan axis while the receiving and transmitting portions rotate around the scan axis. A transmitter transmits a light pulse toward the mirror unit. The transmitting portion is positioned to reflect the light pulse toward a target. A receiver is positioned to reflect the light pulse reflected from the target toward the receiver. The angle offset compensates for a change between a cone of illumination of the transmitting portion and a field-of-view of the receiving portion resulting from the rotation of the mirror unit.

Abstract: A LADAR has adjustable operational parameters to accommodate surveillance of a particular site. The LADAR includes a controller, a laser source governed by the controller to generate a laser beam pulsed at a pulse repetition rate, an optical scanner, a first set of optics, a first drive assembly governed by the controller, a second drive assembly governed by the controller, a light detector, a second set of optics for guiding laser echo pulses, and a processor coupled to the light detector to accommodate surveillance of the particular site.

Abstract: A layer of urethane or silicone elastomer is interposed between a plastic film undergoing sputter deposition and a support for the film to avoid thermal damage to the film.