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Application filed by Hon Hai Prec Ind Co LtdfiledCriticalHon Hai Prec Ind Co Ltd
Priority to TW094114655ApriorityCriticalpatent/TW200639463A/en
Publication of TW200639463ApublicationCriticalpatent/TW200639463A/en
An optical module includes a lens group, a case for mounting the lens group therein, and a cylindric bush. The bush is fit in the case and the lens group is fit in the bush. At the time that outer environmental temperature changes, the case and the lens group will not affect each other on account of the respective distortion of them. So this optical module be able to prevent the lens group having eccentricity.