4results about How to "Increase manufacturing difficulty" patented technology

The utility model relates to the technical field of grinding equipment, in particular to large-size product double-face grinding and polishing equipment which comprises a rack. The top grinding mechanism comprises an upper grinding disc used for grinding the upper surface of the product; the bottom grinding mechanism comprises a lower grinding disc used for grinding the lower surface of the product; the dragging mechanism comprises a bracket, a retainer, a first driving device and a second driving device; the bracket is installed on the rack through the first driving device, the first driving device is used for driving the bracket to move horizontally, the second driving device is installed on the bracket, the holder is installed on the second driving device, the second driving device is used for driving the holder to rotate, and the holder is provided with a cavity which is the same as a product in shape and size and used for loading the product.

A housing includes a shell, three sheet metal parts, a long rib, a short rib, and two sheet metal parts. The shell contains annularly distributed inner support blocks. An upper flange is located at the top of the shell, a lower flange at the bottom, and a middle flange is located between the upper and lower flanges on the inner wall of the shell. Two sheet metal parts are located between the lower flange and the side wall of the shell. The sides of the two sheet metal parts are connected to the side of the middle flange by an arc-shaped connecting plate. An upper horizontal circumferential seam exists at the connection between the connecting plate and the middle flange, and a lower horizontal circumferential seam exists at the connection between the connecting plate and the two sheet metal parts. Gaps exist at both the upper and lower ends of the side wall of the shell, filled with insulating cotton sealing plates. A layer of insulating cotton is also provided on the inner wall of the shell. This design reduces the depth of the arc crater, effectively avoiding arc crater crack defects, simplifies the manufacturing of structural components, and significantly improves the welding quality of the wall panels and the housing.

A LiDAR device according to an embodiment of the present invention includes: a light emitting unit configured to emit a light signal toward an object; and a light receiving unit for receiving a light signal reflected from the object. The light emitting unit includes: a light source, a first homogenizer lens spaced apart from the light source, and a second homogenizer lens spaced apart from the light source. Each of the first and second homogenizer lenses has: a first surface facing the light source; and a second surface opposite to the first surface. The first surface of the first homogenizer lens includes a plurality of first raised patterns arranged adjacent to each other in a first direction, and the first surface of the second homogenizer lens includes a plurality of second raised patterns arranged adjacent to each other. Each of the second surfaces of the first and second homogenizer lenses is a flat surface, and the second homogenizer lens is inclined relative to the second surface of the first homogenizer lens about a virtual first axis in a third direction perpendicular to the first direction.

The application discloses a display panel and a display device. The display panel comprises a substrate, a pixel layer arranged on one side of the substrate, the pixel layer comprising a plurality of pixel units, each pixel unit comprising at least two sub-pixels with different colors; a color resistance layer comprising at least two layers of sub-color resistance layers with different colors, each sub-color resistance layer comprising a light transmission opening and a color resistance part distributed around the light transmission opening, the color resistance part comprising a light filtering sub-part and a functional sub-part arranged around the light filtering sub-part, the light filtering sub-part being located on the side of the sub-pixel with the same color as itself away from the substrate, the functional sub-parts of the at least two layers of sub-color resistance layers with different colors being stacked to form a light blocking structure, in the two adjacent sub-color resistance layers, the light filtering sub-part of the sub-color resistance layer away from the substrate is located in the light transmission opening of the sub-color resistance layer close to the substrate, and the refractive index of the sub-color resistance layer on the side close to the substrate is smaller than that of the sub-color resistance layer away from the substrate.