Cylindrical mount for optical components of a variable-power obj

Details Cylindrical mount for optical components of a variable-power obj Cylindrical mount for optical components of a variable-power obj

1999-08-26

2000-08-08

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359695, G02B 1514

Patent

active

061010464

ABSTRACT:
A cylindrical mount (1) for optical components of a variable-power objective, includes an inner straight-line guide (2, 3), with a cam control (13) which is capable of being actuated via a rotary ring (15) arranged on the outside of the mount and which is intended for the adjustment of carriers, (4, 4', 5) for lenses or lens groups relative to one another in order to change the focal length. A further rotary ring (19) is provided for adjusting a holder (10) for lenses or lens groups for setting the focus of the objective. The holder (10) is arranged on a linear guide (8, 9) which is adjustable in the direction of the optical axis (24) and which is fastened to a carrier (4') displaceable with the change in focal length. The further rotary ring (19) has, on its inner cylindrical surface, a cam carrier (18) which is held displaceably in the direction of the optical axis (24) on the cylindrical surface. The holder (10) has a transmission element (20) which is in engagement with the cam carrier (18), and the cam carrier (18) possesses a guide element (17) which points inward in the radial direction and which is in engagement with a guide slot (16) arranged perpendicularly to the optical axis (24) of the objective on the outer cylindrical surface of the carrier (4').

REFERENCES:
patent: 4993815 (1991-02-01), Yamazaki et al.
patent: 5675444 (1997-10-01), Ueyama et al.
patent: 5748390 (1998-05-01), Koiwai et al.

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