Optical: systems and elements – Compound lens system – Telescope
Patent
1992-05-18
1993-11-30
Henry, Jon W.
Optical: systems and elements
Compound lens system
Telescope
359414, G02B 706
Patent
active
052670791
ABSTRACT:
Binoculars having a central device for focusing and diopter adjustment wherein the diopter adjusting wheel is integrated into the face of the focusing drive wheel, whereby the focusing and the diopter adjustment can be performed independently of each other.
REFERENCES:
patent: 3484149 (1969-12-01), Becker et al.
patent: 4750823 (1988-06-01), Riedl
D. Swarovski & Co.
Henry Jon W.
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