Luna Optics: Night Vision Optics

For a printable "About Night Vision" Data Sheet, please click here.

• Optical part of every Night Vision device consists of the Objective Lens and the Ocular (Eyepiece).

• The main demand for an Objective Lens is the high light transmittance in the visible and near Infrared light. It is expressed with the geometric light power from the line (F-number). Examples of the F-numbers are 1.0, 1.4, 2.0, 2.8 etc… The higher the F-number is, the less light is transmitted through the objective lens. Good light transmittance is very important for any night vision device, but especially for Generation-I models.

• The Ocular is equally important for any night vision device, as it picks up the illuminated image from the Intensifier tube and brings it to the user's eye. All of the Luna units feature high quality all-glass oculars with anywhere between 4 and 21 lens elements to provide the highest possible image quality to the user.

• IMPORTANT: The magnification of the night vision devices is generally much lower than of the daylight binoculars or spotting scopes. It is important to consider the fact that when employing higher magnification, the objective lens elements are thicker and therefore transmitting less light than thinner lens. The magnification of Luna devices ranges from 1x to 7x, preserving the best possible balance between image magnification and the light transmission.