Abstract: A system and method are disclosed for a low F-number precision variable-focus telescope that includes a telescope housing containing an optical system. There is a first temperature sensing device to detect a temperature of the telescope housing, a second temperature sensing device to detect an ambient temperature around the telescope housing, and a pressure sensing device to detect ambient pressure around the telescope housing. A controller is in operative communication with the first temperature-sensing device, the second temperature sensing device, and the pressure sensing device. The control regulates the heater to maintain the telescope at a desired temperature to achieve diffraction limited performance in response to signals from the first temperature-sensing device, the second temperature sensing device, and the pressure sensing device.

Abstract: A system and method are disclosed for a precision variable-focus telescope that includes a telescope housing containing an optical system; a gap pad including a first side and a second side, wherein the first side of the gap pad is attached to the telescope housing; a heat spreader including a first side and a second side, wherein the heat spreader is contiguous with the telescope housing and wherein the second side of the heat spreader is attached to the second side of the gap pad; a temperature-sensing device connected to the first side of the heat spreader; and an electric-film heater including a first side and a second side, wherein the second side of the electric-film heater is attached to the first side of the heat spreader.

Abstract: An optical bench utilizing narrowband optical filters on precision rotary stages that can provide custom tuning of the operational frequencies of the optical bench while maintaining the ability to switch between narrowband and wideband operation thereof. The precision rotary filters may further provide dynamic reconfiguration of the optical bench to alternate frequencies for intersystem compatibility, the enablement of additional self-test capabilities, and easing the manufacturing tolerances thereof.

Abstract: A system and method are disclosed for a precision variable-focus telescope that includes a telescope housing containing an optical system; a gap pad including a first side and a second side, wherein the first side of the gap pad is attached to the telescope housing; a heat spreader including a first side and a second side, wherein the heat spreader is contiguous with the telescope housing and wherein the second side of the heat spreader is attached to the second side of the gap pad; a temperature-sensing device connected to the first side of the heat spreader; and an electric-film heater including a first side and a second side, wherein the second side of the electric-film heater is attached to the first side of the heat spreader.

Abstract: Systems and methods for testing or correcting optical pointing systems are disclosed. An optical pointing system may include an imaging sensor including a field-of-view (FOV) carried by the optical pointing system, at least one collecting device for collecting optical photons and directing the optical photons to the imaging sensor, at least one directing device for directing the at least one collecting device to different pointing vectors, and at least one non-transitory computer-readable storage medium carried by the optical pointing system having instructions encoded thereon that when executed by at least one processor operates to test the optical pointing system by, inter alia, determining a pointing error based, at least in part, on a macro image of a targeted object.

Abstract: Systems and methods for testing or correcting optical pointing systems are disclosed. An optical pointing system may include an imaging sensor including a field-of-view (FOV) carried by the optical pointing system, at least one collecting device for collecting optical photons and directing the optical photons to the imaging sensor, at least one directing device for directing the at least one collecting device to different pointing vectors, and at least one non-transitory computer-readable storage medium carried by the optical pointing system having instructions encoded thereon that when executed by at least one processor operates to test the optical pointing system by, inter alia, determining a pointing error based, at least in part, on a macro image of a targeted object.

Abstract: A counter measure system is provided having a unitary infrared transparent dome including a look angle greater than 180. The dome has two hemispherical regions, with a second region having a truncated bottom end defining an opening to a central cavity inside which electro-optical elements are disposed. The electro-optical elements can view outward through the dome at the look angle. The second region on the dome has a complementary curvature as the first region by continuing a similar radius beyond a transverse horizontal axis or equator. The dome is mounted to a base, which also may be referred to as a bezel. The base defines a rabbet extending circumferentially about the base imaginary center defining an aperture. The base and the dome are formed from different materials but have equivalent coefficients of thermal expansion. In one embodiment the dome if formed from sapphire and the base is titanium.

Abstract: A counter measure system is provided having a unitary infrared transparent dome including a look angle greater than 180. The dome has two hemispherical regions, with a second region having a truncated bottom end defining an opening to a central cavity inside which electro-optical elements are disposed. The electro-optical elements can view outward through the dome at the look angle. The second region on the dome has a complementary curvature as the first region by continuing a similar radius beyond a transverse horizontal axis or equator. The dome is mounted to a base, which also may be referred to as a bezel. The base defines a rabbet extending circumferentially about the base imaginary center defining an aperture. The base and the dome are formed from different materials but have equivalent coefficients of thermal expansion. In one embodiment the dome if formed from sapphire and the base is titanium.

Abstract: An infrared countermeasure system comprises a transparent infrared camera dome with an anti-icing surface coating.

Abstract: An infrared countermeasure system comprises a transparent infrared camera dome with an anti-icing surface coating.

Abstract: An ultralight laser infrared countermeasure (IRCM) system is disclosed. In One embodiment, the system includes an ultra light housing. The system further includes a laser or an infrared missile warning sensor to provide imagery data upon detecting a threat infrared surface to air missile (IRSAM). The ultralight housing is further configured to include at ultralight laser infrared assembly, which includes a laser, and laser pointer assembly. The ultralight housing is furthermore configured to include a missile warning processing module to produce a track point for the laser and to produce a modulation signal based on the imagery data, wherein the ultralight laser infrared assembly to modulate the laser pointer assembly based on modulation signal for a predetermined length of time to provide multiple simultaneous IRSAM engagement protection.

Abstract: A dental patient hand held vibrating device having a interdental mouthpiece portion for insertion into the mouth for gripping between the teeth of the dental patient encountering discomfort resulting from the adjustment of their orthodontic appliances. The hand held device comprises a housing containing a battery and a switch for selectively operating a motor with an off center weight attached to the motor rotating shaft for creating a high frequency vibration that vibrates the entire device. The vibration is transferred from the body of the device to the interdental mouthpiece held between the teeth of the patient. The vibrating interdental mouthpiece reestablishes an adequate blood supply to the teeth and surrounding periodontal structures so as to substantially eliminate the discomfort encountered by a patient that has had their orthodontic appliance adjusted.

Abstract: A span gap runner for detecting and measuring misalignment of rolls in a continuous caster comprises an elongated member having a middle portion recessed from the bottom surface of the member, a position transducer mounted in an aperture of the member and at the midpoint of the member. The member has end portions adapted to span the distance between a three roll segment from a minimum roll spacing to a maximum roll spacing. Span gap is measured between the surface of the middle roll of the three roll segment and a line or plane tangent to the surfaces of the adjacent two rolls.

Abstract: Gas flow through electrodes for electrochemical cells having a porous flow through matrix with electrocatalysts supported on the surfaces of the matrix within the pores, the pores providing a through route for a metastable colloid of electrochemically reducible or oxidizable gas bubbles in liquid electrolyte, with absorption of some of the gaseous component on the walls of the pores. Improved depolarization of the electrode provides long life and stable gas flow through electrodes for electrochemical cells.