4results 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 utility model discloses a guide rail type focusing device, and relates to the technical field of guide rail type focusing. The guide rail type focusing device comprises a transmission gear, a fixing support, an image sensor and a stepping motor. The transmission gear is in sliding connection with the fixing support, the image sensor is arranged on the fixing support, a spring is further arranged between the image sensor and the fixing support, a driving gear is arranged at the output end of the stepping motor, and the driving gear is connected with the transmission gear in a meshed mode. According to the guide rail type focusing device provided by the utility model, the image sensor is arranged on the fixed bracket, and the fixed bracket performs lifting motion so as to achieve the purpose of focusing. In addition, a guide rail mode formed by the transmission gear and the fixing support enables a guide rail inclined groove and an inclined bone position to be in surface-to-surface contact so as to achieve the purposes of stability and zero clearance, assembly tolerance is reduced, focusing precision is improved, high-speed snapshot is achieved, meanwhile, the whole image is clear and balanced, and the problem that one side of the image is clear and the other side of the image is blurred is solved.

The utility model provides an integrated coupling lens which comprises a lens base body, the lens base body is provided with a light inlet face and a light outlet face, the light inlet face is provided with a plurality of spherical lenses arranged in an array mode, the lens base body is further provided with a reflecting face, the reflecting face is used for receiving light paths from all the spherical lenses and conducting total reflection on the light paths, and the reflecting face is used for reflecting the light paths from all the spherical lenses. The light-emitting surface is provided with a refraction plane used for refracting all paths of light which is totally reflected. The integrated coupling lens integrates an array lens and a reflecting prism on a traditional light path, a lens base body can be designed to be of a square structure, the side vertical angle of the lens base body is controllable, the assembling angle and the assembling position are easy to strictly control, meanwhile, the distance precision from a spherical lens of an array to a reflecting surface can be determined by means of an injection molding technology, and the precision of the distance between the spherical lens and the reflecting surface is improved. The problems that limiting from a traditional array silicon lens to a reflecting prism is difficult and the assembling tolerance of the reflecting prism is large are solved, the assembling technological process is greatly simplified, the assembling tolerance is reduced, and the manufacturing efficiency is improved.

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.