1975-02-19
1976-11-30
Corbin, John K.
Surgery
Truss
Pad
350 52, 128 4, G02B 2300, A61B 100
Patent
active
039945570
ABSTRACT:
A dual viewing optical system, for attachment to an optical instrument, hng beam splitting means which can provide first and second beams of light, a first viewing position at which the first beam can be viewed, attached to the beam splitting means a first tube along which the second beam can pass, the said first tube having a coaxial joint which allows coaxial relative rotation of the ends of the tube, a remote eye piece attached to the end of said tube remote from the beam splitting means by a first swivel joint which can rotate about an axis perpendicular to the axis of the tube and allow the axial length of the remote eye piece to be pivoted about said axis of the swivel joint in a plane parallel to but displaced from the axis of the said tube, whereby the remote eye piece may lie in any spatial direction relative to the direction of the first beam, and optical means to relay the second beam to the remote eye piece.
REFERENCES:
patent: 1551770 (1925-09-01), Palmeter
patent: 2857523 (1958-10-01), Corso
patent: 3450457 (1969-06-01), Clave et al.
Pearson, Nat'l Photographer, Aug. 1942, p. 17-19.
Corbin John K.
Henry Jon W.
The Secretary of State for Social Services in Her Brittanic Maje
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