Multiple-light-source optical imaging system of circuit exposure machine

Abstract

The present invention relates to the field of optical devices, in particular to an optical imaging device. A multiple-light-source optical imaging system of a circuit exposure machine includes a light source system, an imaging system, and an imaging plate, and light of the light source system is irradiated on the imaging plate through the imaging system. The light source system comprises at least a light source subsystem comprising a luminescent device and a shaping lens, the light emitted by the luminescent device being shaped into uniform light through the shaping lens. Due to the adoption of the above technical scheme, the system in the invention is characterize by simple structure and smaller size, and is capable of printing circuit boards of different specifications with no need to replace films, and is advantaged in simple and convenient operation as well as better imaging printing effect.

Description

technical field [0001] The invention relates to the field of optical equipment, in particular to an optical imaging device. Background technique [0002] In the production of large-scale printed circuit boards, the transfer of printed circuit board graphics is mainly realized by exposure machines, and the quality and accuracy of printed boards largely depend on the exposure effect produced by the optical imaging device in the exposure machine. Bad. The working mode of the optical imaging device in the existing exposure machine is mainly that the total light source of a circuit is filtered by a filter, and then reflected onto the projection film through at least two reflecting prisms. The entire optical imaging device has a complex structure and a large volume. [0003] In addition, the existing optical imaging device cannot properly adjust the light irradiated on the projection film, and the use method is relatively rigid, and it is easy to have insufficient light or too mu...

AI Technical Summary

Problems solved by technology

The working mode of the optical imaging device in the existing exposure machine is mainly that the total light source of a circuit is filtered by a filter, and then reflected to the projection film through at least two reflective prisms. The entire optical imaging device has a complex structure and a large volume.

[0003] In addition, the existing optical imaging device cannot properly adjust the light irradiated on the projection film, and the use method is relatively rigid, and it is easy to have insufficient light or too much light, which affects the imaging effect

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