Abstract: The invention relates to an apparatus or adjusting mechanism for adjusting optical elements with two degrees of freedom.The essential feature of the adjusting mechanism proposed by the invention is its being built up of a tilting mechanism provided with a knuckle-joint system arranged between the stand and supporting platform of said tilting mechanism and connected in series with them to form a kinematic chain, further, comprising a deformation frame provided with a second knuckle-joint system, a coarse, quick-setting mechanism arranged between said supporting platform and deformation frame, and a fine setting mechanism located between said tilting mechanism and said stand.

Abstract: A device is provided with at least one parallelogram-shaped suspension mechanism built up with arms arranged along parallel planes and deformation joints interconnecting the arms and a setting device both of which are fastened to a table provided with a through hole and suitable for clamping the optical element to be set. Advantage of the setting device according to the invention is represented by the unvarying setting of the angular position of an optical element with a setting and resetting accuracy identical with or better than the wavelength of the light. Construction of the setting device is simple since its production does not require special technology. The setting device is applicable to advantage for optical measurement requiring high setting and resetting accuracy and unvarying setting, mainly in the case of lasers.

Abstract: A micropositioning system for optical laboratories, enables the precise positioning of optical elements in any orthogonal direction and about any desired axis. The system consists of a relatively small number of basic elements having uniformly arranged systems of bores and members engageable in those bores, including at least one linear moving element, at least one rotating element, and at least five different types of distance pieces, namely, a base plate, a centering support, a support carrying a device for the adjustment of angular position, a right angle, and a through plate.

Abstract: A linear positioning device such as for optical measurements, having a base plate, an object carrier and a micrometer screw. Protruding extensions are formed on the base plate, a compensating member is arranged between the base plate and the object carrier. An actuating lever is inserted between the support of the object carrier and the operating micrometer screw. The compensating member is connected by leaf springs both to the extensions of the base plate and to the support of the object carrier, while said support is connected by a spiral spring to the extension of the base plate. The actuating lever of the device is connected by means of a transverse-spring-actuated joint to the extension of the base plate and by a leaf spring to the support of the object carrier and the operating micrometer screw which is led through one of the extensions of the base plate, is bearing up against the actuating lever.