INTERFEROMETRIC METHOD FOR ADJUSTMENT OF THREE-COMPONENT LENSES Russian patent published in 2022 - IPC G02B27/62 G01B11/27 G02B7/182 

FIELD: optical equipment.

SUBSTANCE: invention can be used in the manufacture and assembly of three-component axisymmetric lenses. The interferometric method for adjusting three-component axisymmetric lenses includes pre-assembling the lens according to geometric bases, installing a flat mirror perpendicular to the axis of the main mirror, forming an autocollimation image with a flat mirror in the center of the field of view when installing the focal point of the interferometer lens on the axis of the main mirror in the focus of the lens by adjusting the secondary mirror. The linear and angular decentering of the components is calculated, the defocusing coefficients are determined at the symmetrical edges of the field of view by two orthogonal coordinates, the decentering of the second and third components is calculated, taking into account that the sum of the linear displacements of the autocollimation image caused by the decentering of the components by two coordinates at the central point of the field is zero, the decentering is compensated by linear and angular displacement with the opposite sign.

EFFECT: possibility of adjusting three–component axisymmetric lenses, including three-mirror lenses and two-mirror lenses with lens compensators.

1 cl, 4 dwg, 2 tbl