Concentricity and parallelism inspection device of sled part of optical pickup base

摘要

The present invention relates to a thread concentricity and parallelism inspection device of the optical pick-up base, and in particular, by emitting a parallel beam of the auto collimator in the sled hole of the optical pick-up base which is slide guided in parallel to the sled axis of the optical pick-up base By displaying the balanced beam input to the CCD installed on the other side of the monitor on the monitor, the optical pick-up base slot can simultaneously check the concentricity and parallelism of the sled part of the optical pick-up base which is slide guided to the sled axis simply and accurately. Red portion concentric portion and parallelism inspection apparatus.