OPTICAL RADIATION ADDER Russian patent published in 2002 - IPC

FIELD: optics. SUBSTANCE: adder includes group of radiation sources which optical axes are parallel one another, collimating objectives and system of optical wedges made of even number of pairs of optical wedges put on bearing plate fabricated from material with thermal expansion coefficient matched with thermal expansion coefficient of optical wedges. Each even pair of wedges are arranged as negative image of preceding pair. Radiation sources and objectives are housed in one case which is compensator of temperature defocusing of lenses with reference to radiating pads of corresponding radiation sources. In this case relationship between range of temperature variation, coefficient of linear expansion of materials of cases of adder and radiation source, distances from point of attachment of case of radiation source to first lens of proper collimating objective and to radiating pad of radiation source and diameter of scattering circle of collimating objective specified in formula of invention is realized. Technical result consists in rise of power of output beam of small divergence with stable output optical axis when temperature varies from -70 C to +70 C. EFFECT: increased power of output beam, high efficiency of adder. 1 dwg