The condition for eliminating spatial distortions in the Greenough stereoscopic microscope

Гребенюк К.А., Петров В.В. Условие устранения пространственных искажений в стереоскопическом микроскопе Грену // Оптический журнал. 2008. Т. 75. № 8. С. 31–35.

Grebenyuk K.A., Petrov V.V. The condition for eliminating spatial distortions in the Greenough stereoscopic microscope [in Russian] // Opticheskii Zhurnal. 2008. V. 75. № 8. P. 31–35. 

K. A. Grebenyuk and V. V. Petrov, "The condition for eliminating spatial distortions in the Greenough stereoscopic microscope," Journal of Optical Technology. 75 (8), 500-503 (2008). https://doi.org/10.1364/JOT.75.000500

The methods of collinear optics and analytical geometry have been used to find the conditions for eliminating two effects that reduce the quality of the three-dimensional image in Greenough stereoscopic microscopes: divergence of the guide lines along the vertical and curvature of the stereoscopic image. It is shown that both of these effects are eliminated for a definite ratio between the convergence angles of the optical axes of the objectives and eyepieces of the stereoscopic microscope.