Telescopes - Design and construction

A telescopic sight, commonly called an area that has a mechanism to provide additional accuracy using a point of destination for weapons such as guns, compressed air and spring.

The areas are classified in diameter than the magnification and the lens, for example, 10 × 50 pixels. That means 10 times magnification with a 50mm lens. In general, the objectives of larger diameter are better (more light and give a wider field of view), theChange magnification should be selected on the basis of the appeal. There are also sites where the adjustable magnification objectives can be changed.

Scopes are a number of different patterns, ranging from the traditional to the viewfinder complex designed for the shooter to estimate accurately the distance to a target, to compensate for the fall of the ball, and dunnage necessary to compensate for crosswinds due. A user can select objects to estimateknown size of familiar objects on the road, and also near the volume to compensate for the wind and drag hunting bullet with known lattice.

There are two main types of grid: grid Wire

Wire grids is the oldest type of reticles and are made of wire. They are mounted in a tube optically correct position in the field of view. patterns are carved images of the cross are engraved on the desired configurationan optical element. This optical element (lens) with the lattice is then tied to examine areas of interest as part of the pipe chain perspective, the backlight of the ocular a wire reticle will reflect the incident light and not a target of contrasting black. A lattice remains black if backlit. Gratings recorded by most as a sophisticated solution is to interpret and provide greater flexibility in the lattice. For this reason, some producersprovide customers with tailored viewfinder on request. The expensive and sophisticated modern patterns imprinted on the most dominate. As part of the lattice sites often cheaper son, mounted the stage to avoid a costly and specialized production.

The grid can be seen lying on the front or rear focal plane (the first focal plane (FFP) or second focal plane (SFP)) of. Attach to the frame, there are no major attractionsDifference, but the electric field of variable sites in the frontal plane reticle remains at a constant size compared to the target, while rear plane reticles remain a constant user, the image of the target increases and decreases. focal plane reticles are slightly later development, but most American users prefer that the size of the lattice remains constant, the situation changes, so that almost all modern power flow variable focal sites backplane designs.

Both types of gratings canlighting system for use in low light conditions. With an illuminated reticle, it is essential that its brightness can be adjusted. A network that is too bright to cause glare in the eyes of the operators, to interfere with his ability to see in low light. This is because the pupil of the eye closes quickly upon receiving a source of light. Most illuminated reticles provide adjustable brightness of the reticle precisely adjust to ambient light.

A scopeSeveral checks are:

development control at the end of observation - to take a clear picture of the object and reticle.

Elevation or control the vertical movement of the cross.

Since the regulating or controlling the horizontal orientation of the cross.

optical control - do to change the magnification by turning a ring, which is usually different power levels increase significantly.

command to adjust the line of sight light - intended to regulatethe brightness of the illuminated portion of the cross of the grid.