Helmet Night Vision Binoculars

HAWKEEP HELMET NIGHT VISION BINOCULARS 

This is a portable multi-function dual-eye monocular helmet night vision device. It adopts high-performance super 2nd generation + image intensifier (3rd generation image intensifier can also be optionally selected to meet higher use requirements). It has excellent performance, small size, light weight, clear imaging, powerful functions, simple operation, and can change the magnification by replacing the objective lens. The biggest feature is that the interpupillary distance can be adjusted arbitrarily according to the user's requirements, and the image seen at night can be converted into video output. This product can be connected to the helmet for use, or can be used for handheld observation alone. The night vision device is equipped with a dual-band infrared auxiliary light source and automatic anti-glare protection system. This product has strong practicality, with a shortest focusing distance of 0.25 meters, and can be used to handheldly view newspapers and maps. It can also be replaced with a 4x lens for long-distance viewing, making it an ideal device for observing targets in a completely dark environment at night.

Rubber Eye Cup

Eyepiece(focusing ring of eyepiece)

Objective Lens (focusing ring of objective lens)

Battery Compartment

IR Illuminator

Function selection switch

Light Detector(Light Sensor)

Video output port

OFF/ON/IR Swith Knob

Far-infrared switch

Mounting Part

The exit pupil diameter is the diameter of the bright spot formed behind the eyepiece after the light in the refracting telescope converges through the eyepiece. The human pupil is about 3 mm during the day and can reach a maximum of about 7 mm at night. The exit pupil diameter is related to the aperture and magnification, and the formula is exit pupil diameter = aperture / magnification. Understanding the exit pupil diameter and exit pupil distance will help you choose the telescope that suits you best.

For optical equipment used by the naked eye, light must pass through the pupil to enter the retina to form an image. The human pupil is about 3 mm during the day and can reach a maximum of about 7 mm at night. When observing with optical equipment, the bright spot formed by the eyepiece converging light will be projected onto the pupil. Therefore, the larger the exit pupil diameter, the brighter the image will feel. But an exit pupil diameter larger than the pupil diameter is meaningless.

The calculation formula for the exit pupil diameter is: p = D / M, where p represents the exit pupil diameter, D represents the objective lens aperture, and M represents the magnification.

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