Abstract: A universal self-contained proximity sensor for attachment to any night-vision device that does not have such a sensor or for replacement of the existing sensor. The proposed sensor has a cable with a connection cap that connects terminal contacts of the sensor with the master battery of the night-vision device and can be mechanically connected to the master-battery compartment of the night-vision device by replacing the existing cap of mastery-battery compartment. The sensor can be attached to any selected area on the surface of the night-vision device by means of tiny hooks and loops known under trademark Velcro®. This attachment is carried out with the use of two parts, one of which is adhesively attached to the substrate of the sensor and the other to the housing of the night-vision device, while both parts engage through the aforementioned tiny hooks and loops.

Abstract: The self-contained day/night optical sight device of the invention has a sealed sight housing permanently attached to the weapon or to other object and containing an objective lens and an eyepiece lens installed on a common optical path at a distance from each other so that a space is formed between the both. The same sealed housing pivotally supports a night-vision unit, such as an image-intensifier tube, which can be turned in the plane that contains the optical axis of the sight between the position offset from the aforementioned common optical axis and the position coincident with this optical axis. Since both the night-vision and day-vision optics are located in a sealed housing, the lenses are protected from contamination and fogging. The use of a single optical path makes it possible to reduce the weight of the system.

Abstract: An optical sight for a photocamera viewfinder or for an aiming device of a firearm comprises a combination of a light emitting diode (LED) with a plurality of reticle patterns applied onto the surface of the LED and selectively illuminated by connecting various portions of the reticle patterns to the source of electric power supply. The switching from one reticle pattern to another is carried out electrically without the use of moving parts of the reticles or reticle images. This ensures high accuracy in positioning of reticle elements with regard to each other, e.g., with regard to the front sight center of the partially transparent mirror, and hence, with regard to the ballistic trajectory of the bullet.

Abstract: An optical sight system of the invention with a wide range of shooting distances comprises a combination of a telescopic optical sight with a reticle type sight. The reticle sight consists of a partially transparent mirror attached to the outer surface of the telescopic sight at the distal end of the telescopic sight. The telescopic sight supports on its outer surface a light source, which emits a light beam onto the aforementioned partially transparent mirror. The mirror reflects a part of the beam incident on its surface toward a full-reflection mirror attached to the outer surface on the proximal end of the telescopic tube.