Optical device for use as fixed focus camera system that is utilized as image pickup camera in motor vehicle, has compensation body provided with material including thermal expansion coefficient

摘要

The device (1) has a carrier arrangement (5) holding an objective (2) to change a focal plane (11) relative to an optical component (6) e.g. charge coupled device chip. The objective is arranged in a section of a compensation body (7) that extends along an optical axis (10). The body is connected in another section of an arrangement of the objective with the carrier arrangement. The compensation body includes a material with a thermal expansion coefficient, which is measured such that a temperature-dependent change of the arrangement of the focal plane to the optical component is balanced.