Optical Night Vision Monocular

HAWKEEP OPTICAL NIGHT VISION MONOCULAR 

This is a single-tube low-light night vision device that can be used for long-distance night observation, actual combat exercises, maritime patrols, night monitoring, etc. This night vision device uses a 2nd generation + image intensifier tube, and can also be equipped with a higher-level 3rd generation image intensifier. The lens uses an ultra-wideband multi-layer anti-reflection film, which can effectively transmit visible light and near-infrared light. The built-in infrared light can provide a light source under low-light conditions, and the built-in low-battery indicator can provide timely reminders when the battery is too low.

Perfect waterproof and dust-proof effect, up to IP68. Zero standby consumption, extended service life. The body is designed with ergonomics, large eyepiece, and wide field of view. It is also equipped with automatic brightness adjustment and anti-glare protection.

Objective Lens Focus Knob

OFF/ON/IR Swith

Light Detector(Light Sensor)

IR Illuminator

Battery Compartment

Eyepiece(focusing ring of eyepiece)

Mounting Part

The light transmission is to increase the transmittance of optical components and reduce their reflection.

Generally, optical instruments are made of glass. When the incident light hits the instrument, the reflected light reduces the intensity of the transmitted light. Generally, one interface can lose 4% of the incident light intensity, then the double interface will lose 8%, and the loss will increase if there are more than 4 interfaces. According to this inference, if there are many lenses, the transmitted light intensity will be very small, making it difficult for observers to observe. Some high-precision telescopes and microscopes have dozens of lenses. If no measures are taken, the image will not be visible.

The commonly used method of transmission is to coat a layer of anti-reflection film on the surface of optical components. Anti-reflection film is also called anti-reflection film. It is an optical film deposited on the surface of optical components to reduce surface reflection and increase the transmittance of the optical system. It is the most widely used and longest-standing type of film among all kinds of optical films. The working band can range from the extreme ultraviolet region to the far infrared region. According to the working band range, it is divided into single-wavelength, multi-wavelength and broadband anti-reflection films, but the most widely used is the visible light band anti-reflection film. Since the anti-reflection effect of a single-layer film is limited, and it cannot achieve a high anti-reflection effect in a wide spectral range, a two-layer, three-layer or even multi-layer anti-reflection film is required.

Broadband multilayer antireflection film

The appraisal meeting of broadband multilayer antireflection film technology and field application for optical parts developed by Shenyang Instrument and Meter Technology Research Institute was held in Tianjin from November 26 to 28, 1983. Entrusted by the Instrument Bureau of the Ministry of Machinery Industry, the Second Machinery Industry Bureau of Tianjin hosted the meeting. More than 70 representatives from 35 units attended the meeting. The research unit introduced the design and preparation of broadband multilayer antireflection film, three-layer antireflection film system suitable for various refractive index glasses and control methods, and focused on the design and preparation of multilayer antireflection film system on color photography objective lens to obtain the best color multiplication index and the highest transmittance design idea, and introduced the film system design and test results of applying multilayer antireflection film on Peacock Camera. The representatives measured the high and low refractive index glass coating samples, and the results showed that the antireflection band width and residual reflectivity were far better than the indicators specified in the product sample of Balzers in 1978. This achievement has made a major breakthrough in the transition of multilayer antireflection film technology from laboratory to industrial production.

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