CN2606364Y

CN2606364Y - Continuous focal-length optical devices

Info

Publication number: CN2606364Y
Application number: CN 03220266
Authority: CN
Inventors: 杨泽声
Original assignee: Motic China Group Co Ltd
Current assignee: Motic China Group Co Ltd; Maike Aodi Industry Group Co Ltd
Priority date: 2003-03-05
Filing date: 2003-03-05
Publication date: 2004-03-10
Anticipated expiration: 2013-03-05

Abstract

The utility model discloses a simple continuous focal-length optical device, comprising a fixing component and a sliding component, wherein, the fixing component is a fixing optical component fixed with the opposite position of the microscope eyepiece group, the sliding component is a focal-length optical component capable of doing axial movement relative to the fixing component, and the fixing optical component and the focal-length optical component are in the same light path. Because the utility model merely uses two groups of optical components to realize continuous focal-length, and in the course of the continuous focal-length, adopts linear focal-length guide track, making only one group of optical component move, and adopts materials of small contact area and self lubricity, not only being capable of reducing friction, but also being capable of playing the role of sliding support, making the utility model has the advantages of small lens use level, simple mechanism and low cost.

Description

The continuous zoom optical devices

Technical field

The utility model relates to a kind of continuous zoom optical devices, can regulate the continuous zoom that traditional popular microscopical enlargement factor be carried out stepless expansion by means easily.

Technical background

Generally speaking, we are when using some medium-to-high grade microscopes or medium-to-high grade video camera, can carry out high power feature or low power search to the target of being concerned about by the zooming system on the machine, such means are brought very big convenience and dirigibility to observation.But general popular microscope is not equipped with zooming system, but has only some the fixedly object lens of multiple or several multiples of gear shift, can not finish stepless multiple and change as the continuous zoom system.

The utility model content

The purpose of this utility model just provide a kind of easy to operate, simple in structure, function is strong, lower-cost continuous optics becomes doubly device.

To achieve these goals, the utility model comprises fixation kit and slide assemblies, wherein fixation kit is a fixed optics assembly of fixing with microscope ocular group relative position, make the change times optical module of axially-movable but slide assemblies is a relative fixed assembly, and the fixed optics assembly with become a times optical module and be in the same light path.

Described fixation kit comprises that one is fixed on the change times main body on the microscope handel, stationary magazine creel and elasticity trim ring are fixed on and become on times main body, fix a fixed optics assembly in this stationary magazine creel, eyepiece group, change times main body and stationary magazine creel constitute the microscope ocular tube, described slide assemblies comprises that one is fixed with the adjusting tube that becomes times optical module, this adjusting jacket casing places between stationary magazine creel and the elasticity trim ring, and described stationary magazine creel and elasticity trim ring are formed the adjusting tube and be the guide rail that linearity moves up and down.

Outer wall at stationary magazine creel is provided with and the multiple corresponding grooves; Regulating tube presses with outer wall, the elasticity of stationary magazine creel

Be clearance fit between the inwall that encloses, the adjusting tube touches part with stationary magazine creel contact portion, elasticity trim ring with the adjusting socket joint flexible member is set; Regulate tube and be provided with change times button.

After adopting said structure, because regulating tube all is clearance fit with cooperating of stationary magazine creel, elasticity trim ring, stationary magazine creel is done Elastic Contact and support with the flexible member of regulating tube, elasticity trim ring, adopted the material that contact area is little, have self lubricity, both can reduce friction, can play the sliding support effect again; The utility model has only used two groups of optical modules, and the camera lens consumption is little, and technology is simple, and cost is low; In times process of change, have only one group of optical module motion, mechanism simplifies more, on the basis of realizing the continuous zoom on the optical significance, has simple, the with low cost advantage of mechanism.

Description of drawings

Fig. 1 is the optical system diagram of the utility model when hanging down multiple;

Fig. 2 is the optical system diagram of the utility model when high multiple;

Fig. 3 is the front view of the utility model in popular microscope;

Fig. 4 be the utility model in popular microscope right view;

Fig. 5 is the stereographic map of the stationary magazine creel in the utility model;

Fig. 6 is the stereographic map of the adjusting tube in the utility model;

Fig. 7 is the stereographic map of the elasticity trim ring in the utility model.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Concrete embodiment

Shown in Fig. 3,4, the utility model is installed in the microscope of a popular style.

The utility model comprises that one becomes times main body 11, stationary magazine creel 8, elasticity trim ring 3 and regulates tube 7, wherein becoming times main body 11 is fixed on the microscopical handel 13, stationary magazine creel 8 and elasticity trim ring 3 are fixed on and become on times main body 11 by the screw thread glue of adding some points, eyepiece group 12 is fixed on the upper end that becomes times main body 11, fixed optics assembly 5 is fixed on the other end of stationary magazine creel 8 by trim ring 41, eyepiece group 12, change times main body 11 and stationary magazine creel 8 constitute the microscope ocular tubes; This adjusting tube 7 is nested with between stationary magazine creel 8 and elasticity trim ring 3, the inwall of the outer wall of stationary magazine creel 8 and elasticity trim ring 3 formation adjusting tube linearly moving guide rail about in the of 7; Become times optical module 2 and be fixed on the lower end of regulating tube by trim ring 42, be in the same light path with fixed optics assembly 5, when becoming times optical module 2 when regulating tube 7 and slide up and down with respect to stationary magazine creel 8, the distance that becomes between times optical module 2 and the fixed optics assembly 5 changes, realize the continuous vari-focus of optical significance, the optical system diagram of high multiple and low multiple as shown in Figure 1, 2.

As Fig. 3,5,6, shown in 7, become the multiple scale 112 on times main body 11 on the outer wall of stationary magazine creel 8 relatively

Be provided with corresponding recesses 81; Regulating tube 7 is clearance fit with the outer wall 82 of stationary magazine creel 8, the cooperating of cylinder inboard wall 31 of elasticity trim ring 3, regulates tube 7 and stationary magazine creel 8 contact portions, elasticity trim ring 3 and regulate tube 7 contact portions flexible member 71,32 is set.Stationary magazine creel 8 is at the flexible member 71,32 of regulating tube 7, elasticity trim ring 3

Between do Elastic Contact and support.Because surface of contact is little and material has self lubricity, make the utility model become doubly smooth and easy, comfortable feel; And, make the utility model have location hand feeling in certain multiple owing to have flexible member and groove.

Simultaneously,, make to become times main body 11 and move up and down, realize the burnt compensation of fine setting, make microscope have the function of continuous zoom with respect to object plane by rotation focusing handwheel 6.Adjust the upper-lower position of change times button 10 as the user after, no matter become any position of times button 10 at stroke, the user can find distinct image by rotation focusing handwheel 6.

Claims

1, a kind of continuous zoom device, it is characterized in that: comprise fixation kit and slide assemblies, wherein fixation kit is a fixed optics assembly of fixing with microscope ocular group relative position, make the change times optical module of axially-movable but slide assemblies is a relative fixed assembly, and the fixed optics assembly with become a times optical module and be in the same light path.

2, the device of a kind of continuous zoom according to claim 1, it is characterized in that: described fixation kit comprises that one is fixed on the change times main body on the microscope handel, stationary magazine creel and elasticity trim ring are fixed on and become on times main body, fix a fixed optics assembly in this stationary magazine creel, eyepiece group, change times main body and stationary magazine creel constitute the microscope ocular tube, described slide assemblies comprises that one is fixed with the adjusting tube that becomes times optical module, this adjusting jacket casing places between stationary magazine creel and the elasticity trim ring, and described stationary magazine creel and elasticity trim ring are formed the adjusting tube and be the guide rail that linearity moves up and down.

3, the device of a kind of continuous zoom according to claim 2 is characterized in that: the outer wall at stationary magazine creel is provided with and the multiple corresponding grooves.

4, the device of a kind of continuous zoom according to claim 2, it is characterized in that: regulate between the inwall of tube and stationary magazine creel outer wall, elasticity trim ring and be clearance fit, regulate tube and touch part with stationary magazine creel contact portion, elasticity trim ring with the adjusting socket joint flexible member is set.

5, the device of a kind of continuous zoom according to claim 2 is characterized in that: regulate tube and be provided with change times button.