2results about How to "Reduce assembly tolerances" patented technology

The utility model discloses a car lamp lens module, including radiator, light source board, lens support and be located in the lens support's lens structure, the light source board is located on the radiator, and the lens structure sets up correspondingly the light source on the light source board, the lens structure is three piece type lens structure, and three piece type lens structure includes three lenses that set up in order along the light path, and one of them is double cemented lens. The car lamp lens module structure design is reasonable, and it adopts three piece type lens module structure, and one glass lens adopts double cemented lens, so that can realize four piece type lens module's optical effect, can also improve optical utilization rate, and simultaneously because has reduced the lens quantity more easily to assemble, has reduced the assembly tolerance, has improved the production consistency.

The application relates to the technical field of diffusion plates, in particular to an efficient light diffusion plate of a direct backlight module and a preparation process thereof, which comprises a diffusion plate body, the outer side of the diffusion plate body is provided with a guard element, the outer ring surface of the guard element is embedded with elastic clamping pieces, and the four male corners of the elastic clamping pieces are embedded with mounting pieces. The plastic frame can effectively absorb external impact force, prevent the diffusion plate from being broken or deformed due to collision in the transportation, installation or use process, can close the side wall of the diffusion plate body, prevent moisture, dust or chemical substances from penetrating from the edge, avoid the internal material of the diffusion plate from being degraded due to environmental factors, and prolong the service life.