Device for moving lens in light beam, has guide elements by which lens is engaged and lens is movable in direction of light beam

摘要

Device has guide elements (10.3) by which the lens (1) is engaged and lens is movable in the direction of the light beam (2). The guide element is movable parallel to light beam and the lens is engaged from three guide elements. The guide element is movable in a wall cutout (7.1,7.3) from a cylinder (5) and in the window (6.3) in the wall of the cylinder.