Patent ID: 8223446

Claim:
A device for the temperature-dependent axial movement of an optical component, the device comprising: a monolithic mounting unit including an outer mounting part forming a fixed holder having an axis and an inner mounting part forming a mount adapted to support the optical component, the mount being movable along the axis; and a moving mechanism connected to the fixed holder and the movable mount, the moving mechanism including: at least one external expansion element including a first material having a first coefficient of thermal expansion, at least one internal expansion element including a second material having a second coefficient of thermal expansion, the first coefficient of thermal expansion being larger than the second coefficient of thermal expansion, and a plurality of connecting links disposed in a star-shaped formation, each of the connecting links joining a respective one of the at least one external expansion element to a respective one of the at least one internal expansion element, each of the connecting links being disposed at a prescribed pitch angle, with respect to the axis, that differs from 90°.