Abstract: The present disclosure discloses a method of substance identification of an item to be inspected using a multi-energy-spectrum X-ray imaging system, the method comprising: acquiring a transparency related vector consisting of transparency values of the item to be inspected in N energy regions, wherein N is greater than 2; calculating distances between the transparency related vector and transparency related vectors stored in the system consisting of N transparency mean values of multiple kinds of items with multiple thicknesses in the N energy regions; and identifying the item to be inspected as the item corresponding to the minimum distance. The present disclosure is based on a multi-energy-spectrum X-ray imaging system, and proposes a method of substance identification by analyzing the multi-energy-spectrum substance identification issue.

Abstract: An aiming device including a thermoelectric module, a light source and a sight element. The thermoelectric module generates electricity from a thermal gradient, produced from a user's body heat that is transferred to the module. The electricity powers the light source. The light source illuminates a sight element of a projectile shooting device to enhance visibility of the sight element in a variety of ambient lighting conditions, optionally in low light conditions. The aiming device can be mounted to a projectile shooting device. With the aiming device, a user can selectively illuminate a sight element of a projectile shooting device, with the user's own body heat, to assist aiming the projectile shooting device during a shooting activity. The projectile shooting device can be any type of archery bow and/or firearm. Related methods are also provided.

Abstract: An illumination system for weapon optics includes a light source and one or more channels that direct light from the light source onto adjustment interfaces of a weapon optical device, such as windage and elevation turrets of a scope. An illumination system for weapon optics may also include an illuminated level device for positioning the weapon level in relation to the surface of the earth. An illumination system for weapon optics illuminates adjustment interfaces of a weapon optical device such that markings on the adjustment interfaces can be read in low-light and no-light conditions.

Abstract: A riflescope is provided with a detachable digital ocular lens group that enables vision enhancement functions, e.g. night vision, zoom, etc while being replaceable with a regular ocular group in the event of power failure or faulty components. To ensure accuracy of the digital ocular lens group, a non-visible marker, e.g. IR marker, may be placed on a reticle that can be detected by a photo-sensor of the digital ocular. A processor can use the detected position of the marker to calibrate the digital display of the digital ocular.

Abstract: Disclosed herein are reusable adapters for sighting devices for rocket launchers and other large weapons, particularly mounting adapters for reusable sighting devices that allow retrofitting of existing weapons inventory. Some embodiments include an adapter that includes a laser sighting device mount coupled to a mounting bracket, wherein the mounting bracket is configured to register to and align with one or more housing features of the rocket launcher. In various embodiments, the adapter also includes a strap member configured to secure and immobilize the adapter in position on the rocket launcher. In various embodiments, the laser sighting device mount may be factory calibrated with respect to the adapter, and therefore once the adapter has been mounted on the rocket launcher, no field calibrations of the laser sighting device are necessary.

Abstract: The invention relates to a reticle with a visible pattern in a transparent substrate for a telescope. The pattern of the reticle is made of open grooves which are engraved in a surface of the transparent substrate, wherein the engraved open grooves define groove surfaces at an angle to said substrate surface in which the open grooves are engraved. The groove surfaces have a surface roughness which is large enough to scatter light directed onto the reticle perpendicular to the substrate surface when the reticle is illuminated in transmission mode, such that the pattern becomes visible relative to the remaining substrate surface by said light scattering at the groove surfaces in the transmission mode when viewed from a direction perpendicular to the substrate surface. The reticle is produced with direct laser engraving of the grooves.

Abstract: The invention is a method of irradiating at least one surface of a three-dimensional object (36, 114) with a desired ultraviolet light irradiance flux produced by an ultraviolet light source (22, 102).