| 摘要 |
A sight for a gun includes a transparent, substantially cubic, glass body having a front, a rear, and peripheral surfaces including a top, a bottom, a right side and a left side which are opaque and matte. A semi-reflective surface within the body extends from the top to the bottom at a diagonal to the front. Light from a light emitting diode and reticle negative on a the bottom surface is collimated by a collimating mirror with an F/# between 0.6 and 2.0 and reticle negative on the top surface. Light from a target may pass through the front of the transparent body and exit the rear, and light from the light source may be imaged by the reticle negative, pass through the semi-reflective mirror, be reflected and collimated by the collimating mirror and reflected out of the rear by the semi-reflective mirror as an aimpoint pattern that intermixes with light from the target and the light source. The reticle negative and collimating mirror cooperate to make an aimpoint pattern comprising a 30' arc-minute diameter ring having a 4' arc-minute line width focussed at infinity.
|
