Optical sighting devices such as the telescopic sight are used to project a target aiming pattern over a large field of view. The aiming system can be designed to use an aiming light source, a lens aperture effect, or a combination of the two. Typically, an aiming light source is a laser that creates a light signature that projects on the target. A laser is an intuitive device that provides quick and easy point and shoot aiming.
Aiming optics are generally comprised of an image sensor, an illumination module, and an aiming light source. An imaging module includes a first circuit board with a plurality of aiming LEDs and a second circuit board carrying a two-dimensional image sensor. An aiming light source can be either a visible or an IR laser. The illumination system includes a light redirecting element such as a mirror or prism. The image sensor may also be combined with an optoelectronic element to provide night vision. The aiming system may be configured to vary control based on a sensed condition, such as the color of the target.
Aspects of an aiming system that may Ottiche da puntamento be overlooked include the optical elements, including the reticle, that help to project the aiming pattern onto the target. This may be achieved by a lens aperture effect, or by an optical plate carried parallel to the image sensor plane. The imaging optical element may be a spherical lens, which images light rays in a horizontal and vertical plane. An aiming reticle is usually mounted in a focally appropriate position in the optical system.
The aiming system has several components, including an aiming light source, an aiming reticle, an imaging module, and a support assembly. An aiming reticle is a cylindrical object with a crosshair. It is positioned in a focally appropriate position in the lens assembly and is aimed forwardly. The aiming reticle may be optically mounted on the optical plate or in a dedicated reticle mount. The reticle may have a lateral edge, which is useful for sighting indicia, such as a target’s lateral edge. The lateral edge is often a dashed line.
An aiming system is also able to project an aiming pattern whose dimensions can be adjusted to meet a variety of shooting needs. A common 30/30 reticle has fine horizontal and vertical crosshair lines of 30 MOAs at four times the magnification. The reticle may have a crosshair lateral edge, but is usually not graduated. In a crosshair design, the transition between thinner and thicker lines is defined as a distance from the center.
The optical reader is another important component of an aiming system. An image sensor is a small image sensor that is disposed on the first circuit board and provides the image. The optical reader is also equipped with a aiming optical element. The aiming optical element is a spherical lens that aims forwardly and optically forward of an aperture. A diffuser for diffusing light horizontally can be disposed on the light exit surface.