Patent ID: 7961381
Filing Date: 2011-06-14
Classification: F41G,G02B

Abstract:
1. A night vision device, comprising: an optical path defined within the night vision device; an image intensifying sensor/display combination having an optical path length; a daytime optical path length compensator having an optical path length substantially the same as the optical path length of the image intensifying sensor/display combination, the compensator comprising a glass plate having planar input and output surfaces; a slider including both the image intensifying sensor/display combination and the daytime optical path length compensator, the slider being structured to selectively reciprocate between a day position and a night position, the daytime optical path length compensator being positioned within the optical path in the day position, the image intensifying sensor/display combination being positioned within the optical path in the night position, and wherein the slider slides laterally between the day position and the night position; and wherein the night vision device is mounted onto a weapon for use as a day/night sight.