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A Double Enclosed Plane Cam Lateral Focusing Device

A plane cam, double-closed technology, applied in installation, optics, instruments, etc., can solve the problems of high cost and complex structure, and achieve the effect of long service life, low cost and excellent sealing performance.

Active Publication Date: 2017-09-12
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of no overtravel protection function, complex structure and high cost existing in the existing lateral focusing mechanism, the present invention provides a double-enclosed planar cam lateral focusing device

Method used

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  • A Double Enclosed Plane Cam Lateral Focusing Device
  • A Double Enclosed Plane Cam Lateral Focusing Device
  • A Double Enclosed Plane Cam Lateral Focusing Device

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Experimental program
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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, a double-enclosed planar cam lateral focusing device of the present invention includes a fixed seat 1, a moving seat 2, a detector 3, a detector connecting screw 4, a focusing handwheel 5, a handwheel connecting screw 9, a force-closed Compression spring one 17, guide seat baffle plate 18, guide seat 19, guide shaft 20, force-enclosed compression spring two 21, guide shaft shaft end fixing seat 22 and side focusing cam assembly 23.

[0030] Such as figure 1 As shown, the fixed seat 1 is a hollow structure, the rear end is a full opening structure, the upper and lower ends are provided with a raised structure, the front face is provided with a large circular opening structure, and one side is provided with a small circular opening structure. The edge of the shaped opening structure has a sealing groove.

[0031] Such as F...

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PUM

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Abstract

A double-enclosed planar cam lateral focusing device relates to the field of mechanical lateral focusing of optical lenses, and solves the problems of no overtravel protection function, complex structure, and high cost in existing lateral focusing mechanisms. Including fixed seat, moving seat, detector, detector connecting screw, focusing handwheel, two force-closed compression springs, guide seat baffle, guide seat, guide shaft, guide shaft shaft end fixing seat, hand wheel outer sealing ring , focusing cam mounting seat, cam mounting seat sealing ring, focusing eccentric camshaft, handwheel inner sealing ring, bearing inner ring retaining ring, bearing outer ring retaining ring, camshaft rotary bearing, focusing force bearing and force Bearing retaining ring. The outer cylindrical surface of the focusing force bearing is located inside the rectangular closed groove of the moving seat to form a closed plane cam pair; two force-closed compression springs press the force-bearing surface of the rectangular closed groove of the moving seat to the outer surface of the focusing force bearing. cylindrical surface. The invention has the function of over-travel protection, and has simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of mechanical side focus adjustment of an optical lens, in particular to a double closed planar cam side focus adjustment device. Background technique [0002] At present, in the manual focusing technology of optical sights, the lateral focusing method is mostly used, which is convenient for users to operate and is more ergonomic. The existing lateral focusing mechanisms mostly adopt rack and pinion transmission and bevel gear transmission technology, and these two kinds of lateral focusing mechanisms have the following problems: 1. These two kinds of lateral focusing mechanisms must be within two stages of the focusing stroke. The limit position is set with a limit mechanism, and the driving gear must be rotated in the opposite direction after being manually rotated to the limit position in one direction. It does not have an overtravel protection function, so the mechanism is prone to excessive wear and oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/00
CPCG02B7/00
Inventor 黄剑波王健李丙玉郑黎明孙强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI