An apparatus based on the principle of Wheatstone's mirror stereoscope is described. The main changes introduced are (a) that by the use of semi-transparent mirrors it is possible to arrange that the subject's eyes are correctly converged and accommodated at the beginning of each exposure, and (b) that the times of exposure of the two figures can be varied independently.
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References
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AsherH. (1953). A new method of stereoscopic viewing. J. phot. Sci.1, 192–193.
2.
WheatstoneC. (1838). Contributions to the physiology of vision. Phil. Trans. Roy. Soc., London128, 371–394.
