3 results about "Entocentric lens" patented technology

The utility model discloses a kind of combination lens disc and stage lamp for multi-light source LED stage lamp, including lens fixed cover, lens assembly and lens mounting disc, the lens assembly is between lens fixed cover and lens mounting disc, the lens fixed cover is connected with the lens mounting disc;The lens assembly includes a center lens and the multiple peripheral lenses around the center lens periphery side, the size and shape of the peripheral lens are same;The inside of lens fixed cover and lens mounting disc is equipped with several partitions and mutually corresponding, several partitions are mutually connected and form hollow honeycomb structure;The one side of lens mounting disc towards lens fixed cover is equipped with several bosses, the peripheral lens is composed of multiple lenses, hollow lens break is equipped between the lens and lens, the position and size of the lens break are adapted to the boss, the peripheral lens is connected by the cooperation of lens break and the boss of lens mounting disc.

This application discloses a projection lamp, including a housing, a light source, and a lens assembly. The housing has a light inlet and a light outlet on its front and back sides, respectively. An optical path channel is provided inside the housing. The light source is installed at the light inlet, and a light-transmitting plate is provided inside the light outlet. The lens assembly includes at least two upper lenses, one central lens, and at least one lower lens. The upper, central, and lower lenses are sequentially installed in the optical path channel from back to front. All three lenses are elliptical. This invention reduces the thickness of each lens by using elliptical lenses instead of the circular lenses used in the prior art, thereby effectively reducing the size of the projection lamp.

The utility model provides a kind of staggered segmented infrared detection lens and infrared detection device, wherein the staggered segmented infrared detection lens has a central lens group and a wide-angle lens group being staggered arranged relative to the central lens group, and based on the staggered arrangement between the central lens group and the wide-angle lens group has the staggered segmented light entrance face design compared with the overall convex light entrance face form has in the convex direction relatively compressed size, wherein the light entrance face of the wide-angle lens group is formed by a plurality of planar splicing, and compared with the arc convex light entrance face form avoids the reflection / refraction of incident infrared light, to improve the light gathering efficiency of each lens unit of the wide-angle lens group, so as to facilitate the design of large light entrance face area to ensure the detection accuracy of the infrared detection device, and the miniaturization design of the infrared detection device is also considered.