Nikon Labophot - Page 90

R-4106.A
MECHANISM ANO PRINCIPLE
3. UW·tube
o Inclination 5.2° of prisms @ and @ from the optical axis, which is made possible by the
parailel light rays after @ and @. to avoid goast images caused by retlection on the prisms.
• Optical axis of @, @ in Photo·tube, though cause haJving, on account of the inclination
of
@ and @,are assumed to be that, if not such halving would be considered, i.e. the
elongation
of the axis of @ @.
• As shown in Fig. 14, the images at OL and ÜR are produced by the parallel ray beams between
@,@) and @, @), aswellas @),@) and @, @.
• Image position Qp of Photo-tube is adjusted by changing its tube length using a colllmator, so
that the image is located on the focal point of @, @.
• Image positions ÜL and ÜR in the binocular body are adjusted by rneans of eyepiece sleeve cover
@, so that they are parfocal with t.!te image Qp of Photo·tube.
•
UW-tube permits observation of a wide viewfield of 26.Srnm in dia., using IOX objective.
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