Abstract: A system can include an optical device and an accessory device. The optical device can include a housing, an objective lens at a first end of the housing and supported by the housing, an ocular lens at a second end of the housing and supported by the housing, and an optical path defined from the objective lens through the housing to the ocular lens, and a display device supported by the housing proximate the second end of the housing. The display device can include a display, hardware logic circuitry to process display data and to display the display data on the display, an input port, and a display holder to position the display in the optical path in the presence of a signal from the accessory device and to position the display out of the optical path in the absence of a signal from the accessory device.

Abstract: A separable common aperture fusion binocular, including: a sensor unit, an ocular unit, and a control unit. The sensor unit includes: a fusion aperture, a laser range finder, and an infra-red illuminator. The ocular unit includes: at least one high-definition display and an ocular lens assembly for viewing data received from the sensor unit on the at least one high-definition display. The control unit provides functionality for control of the sensor unit and data display in the ocular unit.

Abstract: In some implementations, a passive personal laser detector warning safety device includes a plurality of wide frequency range detectors which detect illumination by a high-intensity electromagnetic radiation source. A detector processor is interoperably coupled to the plurality of wide frequency range detectors, where the detector processor continuously monitors a background signal of ambient electromagnetic radiation illumination, where the detector processor compares incoming signals that exceed the background signal, and where the detector processor generates an illumination alert with respect to determined non-spurious signals that exceed the background signal. A plurality of light emitting diodes (LEDs) illuminate to indicate detection of and direction of the high-intensity electromagnetic radiation source. A speaker can emit tone or voice output. Haptics can provide haptic sensory feedback.

Abstract: The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

Abstract: A drinking vessel can include a liquid container that includes temperature controller and a temperature measurement device. The temperature measurement device can measure a temperature of a beverage within the liquid container. The temperature control device can control the temperature of the beverage within the liquid container to maintain the beverage at a desired temperature for consumption. The drinking vessel can also include a base that includes one or more of a power supply, electronics, a transceiver, input/output ports, a display, or charger. The base can couple to the liquid container via a mechanical and electrical interface.

Abstract: Aspects of the embodiments include an optical device comprising a housing; and an afocal lens assembly comprising a zoom lens in the housing, the zoom lens supported in the housing to move along a long axis of the housing. The afocal lens assembly can also include an objective lens configured to move synchronously with the zoom lens based on rotation of a zoom+focus adjustment knob coupled to a lens driving mechanism.

Abstract: The present disclosure describes a single aperture laser range finder (SALRF). In an implementation, the single aperture laser range finder includes a beam extender including an aperture and an input aperture lens. A matching lens collimates light emitted from an emitter element associated with a single aperture optical circulator and received by the beam extender, respectively. A single aperture optical circulator has an emitter channel associated with the emitter element and a detector channel associated with a detector element. The emitter channel and the detector channel merge together at an input/output aperture. A light gating mechanism is configured to permit received light to enter the detector channel and to prevent the received light from entering the emitter channel. The SALRF has an electronics end cap.

Abstract: An apparatus includes a laser rangefinder, an imaging device aligned to an optical path of the laser rangefinder, a control interface to activate the laser rangefinder and to cause the imaging device to capture an image during an operating cycle of the laser rangefinder, and a display to display an image of an object captured by the imaging device and a corresponding distance to the target determined by the laser rangefinder. The imaging device can capture an image of an intended target, allowing the operator to verify that the ranged distance provided by the laser rangefinder corresponds to the intended target.

Abstract: An optical device includes an ocular assembly that includes an ocular housing comprising an inner surface and an outer surface, the ocular housing including a bayonet latch mating surface extending radially inwards from the inner surface of the ocular housing. The optical device includes a main body assembly that includes a main body housing that houses the objective lens assembly, the housing comprising an outer surface comprising a bayonet latch receiving surface, and an objective lens assembly secured within the main body housing.

Abstract: An apparatus can include an optical device comprising an internal display, a communications system coupled to the optical device, the communications system to receive a wireless signal comprising data representing a textual signal, and a hardware processor to convert the data representing the textual signal into a format for displaying on the digital display. The apparatus can include a text and speech processor for converting signals representing audible speech to visual text and primitive graphics for display on the internal display. The text and speech processor can also convert text to speech for audio output.

Abstract: This disclosure describes an afocal attachment that allows for alteration of received electromagnetic radiation (or “light”) prior to entry into the telescope. For example, a rifle scope may have a base magnification of 2×, and the afocal attachment may allow magnification of a received image at levels ranging from 2× to 4×. In this example, the entire telescope system with the afocal attachment installed will have an overall magnification of 4× to 8×. In another example, the magnification of the telescope can be increased, transforming a telescope with a 4× magnification into a telescope with a higher effective magnification. In some instances the afocal attachment's optical axis can be configured to permit independent adjustment, allowing for easy removal and reinstallation of the afocal attachment without a need to re-adjust the telescope itself.

Abstract: The present disclosure describes a single aperture laser range finder (SALRF). In an implementation, the single aperture laser range finder includes a beam extender including an aperture and an input aperture lens. A matching lens collimates light emitted from an emitter element associated with a single aperture optical circulator and received by the beam extender, respectively. A single aperture optical circulator has an emitter channel associated with the emitter element and a detector channel associated with a detector element. The emitter channel and the detector channel merge together at an input/output aperture. A light gating mechanism is configured to permit received light to enter the detector channel and to prevent the received light from entering the emitter channel. The SALRF has an electronics end cap.

Abstract: In one embodiment, an optical device includes an afocal magnifying lens train comprising a plurality of optical elements, which can magnify or demagnify an image of an object with zero or close to zero net convergence or divergence of the incoming light. The afocal magnifying lens train may include a catadioptric system. The optical device also includes an alignment adjustment mechanism to tilt, tip, or move one or more of the optical elements of the afocal magnifying lens train. The optical device further includes a clamp mechanism to secure the optical device to a rail or to another optical device.

Abstract: The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

Abstract: This disclosure describes an afocal attachment that allows for alteration of received electromagnetic radiation (or “light”) prior to entry into the telescope. For example, a rifle scope may have a base magnification of 2x, and the afocal attachment may allow magnification of a received image at levels ranging from 2x to 4x. In this example, the entire telescope system with the afocal attachment installed will have an overall magnification of 4x to 8x. In another example, the magnification of the telescope can be increased, transforming a telescope with a 4x magnification into a telescope with a higher effective magnification. In some instances the afocal attachment's optical axis can be configured to permit independent adjustment, allowing for easy removal and reinstallation of the afocal attachment without a need to re-adjust the telescope itself.

Abstract: The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

Abstract: This disclosure describes an afocal attachment that allows for alteration of received electromagnetic radiation (or “light”) prior to entry into the telescope. For example, a rifle scope may have a base magnification of 2×, and the afocal attachment may allow magnification of a received image at levels ranging from 2× to 4×. In this example, the entire telescope system with the afocal attachment installed will have an overall magnification of 4× to 8×. In another example, the magnification of the telescope can be increased, transforming a telescope with a 4× magnification into a telescope with a higher effective magnification. In some instances the afocal attachment's optical axis can be configured to permit independent adjustment, allowing for easy removal and reinstallation of the afocal attachment without a need to re-adjust the telescope itself.

Abstract: A system can include an optical device and an accessory device. The optical device can include a housing, an objective lens at a first end of the housing and supported by the housing, an ocular lens at a second end of the housing and supported by the housing, and an optical path defined from the objective lens through the housing to the ocular lens, and a display device supported by the housing proximate the second end of the housing. The display device can include a display, hardware logic circuitry to process display data and to display the display data on the display, an input port, and a display holder to position the display in the optical path in the presence of a signal from the accessory device and to position the display out of the optical path in the absence of a signal from the accessory device.

Abstract: The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

Abstract: Systems and devices can include a first optical element and a second optical element, the first and second optical elements transparent to visible light; and a photovoltaic element residing between the first optical element and the second optical element, the photovoltaic element transparent to visible light, the photovoltaic element to generate electricity based on the absorption of ultraviolet (UV) and near-infrared (NIR) light. The photovoltaic element can include a conductive element to conduct electricity generated from the absorption of UV and NIR light.