Double telecentric lens structure

Abstract

The invention discloses a double telecentric lens structure. The structure includes a mechanical module I, a mechanical module II, a mechanical module III, a lens module I, a lens module II and a lens module III; the mechanical module I is installed on the outside of one end of the mechanical module II, and the mechanical module III is installed on the other end of the mechanical module II; the lens module I is installed on the end, away from the mechanical module II, on the inner side of the mechanical module I; the lens module II is installed on the end, away from the mechanical module III, on the inner side of the mechanical module II; and the lens module III is installed on the end, away from the mechanical module II, of the mechanical module III. The structure can be obtained through excellent design idea, high-quality production and precise debugging and testing; under the circumstance of equivalent design parameters, outer diameter sizes and the total lengths of products can be especially reduced; the structure is small in distortion value and high in definition; the structure is professionally used for precision measuring equipment, so that the precision of equipment can be enhanced; and as no similar products exist at markets at present, the structure has a certain monopoly.

Description

technical field [0001] The invention relates to the technical field of industrial imaging, in particular to a bi-telecentric lens structure. Background technique [0002] In the application of high-precision test equipment, a high-precision industrial telecentric lens must be used. If the range of a certain product is to be within the visual range under the condition of the same CCD camera, then a suitable telecentric lens is required, and It is the multiple of the lens that determines the range that the product can see. Try to be within the appropriate range, so that the accuracy will be high. If the range is large, the measurement accuracy of the software will be low, so the lens should be designed just right. [0003] At present, there is no related product on the market. The disadvantage is that the development cost is high and the manufacturing process is difficult. It requires the cooperation of high-precision lens manufacturers, and moreover, the cooperation of periph...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no related product on the market. The disadvantage is that the development cost is high and the manufacturing process is difficult. It requires the cooperation of high-precision lens manufacturers, and moreover, the cooperation of peripheral manufacturers such as high-end machine tools.

These conditions have restricted the lens manufacturing to a certain extent

Images