CN201096973Y

CN201096973Y - A telescope focusing machine

Info

Publication number: CN201096973Y
Application number: CNU2007201142626U2007201142626U
Authority: CN
Inventors: 林云才
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2008-08-06
Anticipated expiration: 2017-09-04

Abstract

The utility model belongs to the telescope technology field, and provides a telescope focusing mechanism. The utility model solves the technology problems that the structure is complex, the assembly and the operation are inconvenient, and the focal distance is easy to be changed due to unintentional knock of the focusing mechanism etc. The telescope focusing mechanism is arranged at the telescope tube of the telescope, and comprises a telescope base used for installing a lens, the telescope base presents a cylindrical shape and is installed in the telescope tube, a focusing tube which can be circumferentially rotated and drives the telescope base to perform axial movement is arranged between the telescope tube and the telescope base, a plurality of guiding parts are axially arranged on the outer periphery of the inner end of the telescope base, a guiding groove mutually matched with the guiding parts is axially arranged on the inner wall of the telescope tube, the focusing tube and the telescope base are connected through thread, and a rotation structure used for driving the focusing tube to perform circumferential rotation is arranged on the focusing tube. The telescope focusing mechanism has the advantages that the structure is simple, the operation is convenient, the telescope focusing mechanism can adjust the focal distance, and simultaneously also can prevent the change of the adjusted focal distance resulted from unintentional knock or extrusion.

Description

A kind of telescope focus adjusting mechanism

Technical field

The utility model relates to the telescope technical field, relates in particular to a kind of telescope focus adjusting mechanism.

Background technology

Telescope is that a kind of optical principle of lens of utilizing manufactures and designs, and the distance between the focal length by regulating lens and two eyeglasses is adjusted the optical element of the readability of the scenery of observing.Present telescope is divided into and focuses and two kinds of adjustable focus.

Though the telescope of adjustable focus can be adjusted according to the eyesight status focusing of different people, thus the requirement of adaptation different people.But, because majority can not correctly understand the telescope focus adjusting mechanism, transfer unclear picture, under this situation, use telescope can make the people produce dim eyesight, dizziness, even malaise symptoms such as feel sick.On the other hand, telescopical assembling, debugging and use are all very inconvenient; The device of telescope adjusted focal length is arranged on the place that hand is run into easily usually, be easy to because people's mood is exciting or other collide unintentionally and wait other transient cause to run into the device of focusing, the focal length that causes regulating changes, do not reach best visual effect when reusing, need to readjust focal length again.As application number is 00135733.6 disclosed a kind of binoculars of Chinese patent literature and the optical devices that are provided with rotatable drawing type eyeshade.This telescope has a lens barrel body and a pair of left and right sides eyepiece parts, left and right sides eyepiece parts all have the eyepiece support frame that is fixed on the lens barrel body, a plurality of eyepiece lens, zoom parts, move at least one lens in a plurality of eyepiece lenss at optical axis direction, diopter is regulated parts, moves all the identical amounts and the rotatable drawing type eyeshade parts of a plurality of eyepiece lenss at optical axis direction.Focus adjusting mechanism in this telescope is very complicated and be easy to carelessness the operator, and focal length is changed.

In view of top reason, the someone bring into use focal length constant focus telescope.The telescope that focuses is easy to use, has configured focal length when dispatching from the factory, and does not worry the problem of focusing can being fit to most of crowd's request for utilization.But each one eyesight there are differences in the real life, and particularly myopia and presbyopia or two eye visions are inequality, and the distance of the scenery that need see is different, is difficult to be fit to each user's needs.

Summary of the invention

The purpose of this utility model is at the problems referred to above, provide a kind of simple in structure, easy to operate, can focusing regulate, can prevent again that simultaneously the user is not intended to the telescope focus adjusting mechanism that collision, extruding cause the focal length variations that regulated, solved the complex structure, assembling, the use inconvenience that exist in the prior art, easily be not intended to run into focus adjusting mechanism in the use and make technical matterss such as focal length variations.

For achieving the above object, the utility model has adopted following technical proposal: a kind of telescope focus adjusting mechanism, be arranged at telescopical lens barrel place, it comprises a microscope base that is used to install eyeglass, microscope base is cylindric and is loaded in the lens barrel, it is characterized in that, be provided with one between described lens barrel and the microscope base and can circumferentially rotate and be with the axially movable focusing drum of microscope base, the inner periphery of described microscope base is axially arranged with some guides, the lens barrel inwall is axially arranged with the gathering sill that cooperatively interacts with guide, be joining between described focusing drum and the microscope base, on focusing drum, be provided with the rotational structure that is used to drive its circumferential rotation by screw thread.

The utility model is used for the focal length that trace is regulated microscope base eyeglass in the telescope, to reach the purpose of the sharpness of regulating the scenery of being observed.When focusing drum circumferentially rotates with respect to lens barrel, because between focusing drum and the microscope base is joining by screw thread, so focusing drum also can move axially with respect to the circumferential rotation of microscope base the time, promoting guide simultaneously moves axially in gathering sill, because eyeglass is installed in the microscope base, eyeglass can move along with moving forward or backward of focusing drum.When moving, the focal length that is located at the eyeglass in the microscope base changes, and the observer can rotate the rotational structure of focusing drum as required and focus.

In above-mentioned telescope focus adjusting mechanism, the outer end of described focusing drum is provided with the anti-edge of the outer end that is buckled in lens barrel, and focusing drum the inner is provided with block body on the convex shoulder that leans against the lens barrel inwall.This design make between focusing drum and the lens barrel cooperate compact more, when circumferentially rotating since the block body of focusing drum be stuck in the groove of lens barrel inwall, so rotate more steadily, focusing accuracy is also more accurate; When rotate instead along the time can easily rotate focusing drum.

In above-mentioned telescope focus adjusting mechanism, described rotational structure is at least one recess or the convex body that is arranged on the focusing drum outer end.Rotate recess or convex body, when it was circumferentially rotated, owing to be joining by screw thread between focusing drum and the microscope base, focusing drum will advance when circumferentially rotating or retreat.In addition, the rotation of focusing drum can be accomplished in several ways in this structure, and promptly rotational structure can have multiplely, also can realize adjusting by instrument.

In above-mentioned telescope focus adjusting mechanism, described rotational structure also comprises an independent focusing handwheel that can cooperate and drive the focusing drum rotation with recess on the focusing drum or convex body that is provided with.

When circumferentially rotating focusing handwheel, owing to work in coordination between recess or the convex body, focusing handwheel can drive focusing drum and rotate, owing to be joining by screw thread between focusing drum and the microscope base, focusing drum will advance when circumferentially rotating or retreat.

In above-mentioned telescope focus adjusting mechanism, described focusing handwheel has a transmission ring that can insert in the focusing drum, is being provided with the convex body or the recess that can cooperate with recess on the focusing drum or convex body on the transmission ring.In the time will rotating focusing handwheel, transmission ring is inserted focusing handwheel and rotation, because recess matches with convex body, transmission ring can drive focusing handwheel and focusing drum circumferentially rotates, and finally reaches the purpose of focusing.After bringing into focus, can take out transmission ring, focal length just can not change owing to the operator collides the focal length that transmission ring causes having regulated unintentionally like this, in order to avoid do not reach best visual effect when reusing, needs again to readjust.

In above-mentioned telescope focus adjusting mechanism, described focusing handwheel also has a focusing ring, is provided with some fins in the periphery of focusing ring.When loading onto transmission ring, the some fins on the focusing ring can increase the friction between focusing handwheel and the hand, the convenient rotation.

Compared with prior art, advantage of the present utility model is:

1, be provided with in the lens barrel and can circumferentially rotate and be with the axially movable focusing drum of microscope base, can adjust the size and the readability of the scenery of observing by focusing drum, the handled easily person observes the scenery of different distance in multiple occasion.

2, on focusing drum, be provided with focusing handwheel,,, avoid the operator to run into the focal length that focusing handwheel causes regulating carelessly and change so after bringing into focus, can remove focusing handwheel because focusing handwheel is detachable.

Description of drawings

Fig. 1 is the sectional structure synoptic diagram of the utility model when being applied on the telescope.

Fig. 2 is the sectional structure synoptic diagram of the utility model when focusing handwheel is not installed.

Fig. 3 is the sectional structure synoptic diagram of focusing handwheel of the present utility model when being installed in the focusing drum.

Fig. 4 is the perspective view of the utility model when focusing handwheel is not installed.

Fig. 5 is the perspective view of focusing handwheel in the utility model.

Among the figure, 1, lens barrel; 11, convex shoulder; 2, microscope base; 21, eyeglass; 3, focusing drum; 31, anti-edge; 32, block body; 33, recess; 4, guide; 5, gathering sill; 6, rotational structure; 61, focusing handwheel; 62, transmission ring; 62a, convex body; 63, focusing ring; 63a, fin.

Embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As Fig. 1, Fig. 2 and shown in Figure 3, this telescope focus adjusting mechanism is arranged at telescopical lens barrel 1 place, and it comprises a microscope base 2 that is used to install eyeglass 21, and in the present embodiment, eyeglass 21 is an eyepiece.Microscope base 2 is cylindric and is loaded in the lens barrel 1, be provided with one in the lens barrel 1 and can circumferentially rotate and be with microscope base 2 axially movable focusing drums 3, focusing drum 3 outer ends be provided with instead along 31, focusing drum 3 the inners are provided with block body 32, instead along 31 outer ends that are buckled in lens barrel 1, block body 32 leans against on the convex shoulder 11 of lens barrel 1 inwall.

As Fig. 2 and shown in Figure 3, microscope base 2 inner peripheries are axially arranged with some guides 4, and lens barrel 1 inwall is axially arranged with gathering sill 5, and guide 4 cooperatively interacts with gathering sill 5.Guide 4 can slide at gathering sill 5, between focusing drum 3 and the microscope base 2 is joining by screw thread, be provided with the rotational structure 6 that is used to drive its circumferential rotation on focusing drum 3, rotational structure 6 also can be convex body herein certainly for being arranged on some recesses 33 of focusing drum 3 outer ends.Because between focusing drum 3 and the microscope base 1 is joining by screw thread, when rotational structure 6 drove focusing drum 3 circumferential rotations, microscope base 2 can move axially under the effect of focusing drum 3 forward or backward.

As Fig. 2, Fig. 3, shown in Figure 4, rotational structure 6 also comprises an independent focusing drum 3 into and cooperates and drive the focusing handwheel 61 of focusing drum 3 rotations with the recess 33 on the focusing drum 3 of can pegging graft that is provided with.Focusing handwheel 61 has a transmission ring 62 that can insert in the focusing drum 3, is being provided with the convex body 62a that can cooperate with the recess 33 on the focusing drum 3 on the transmission ring 62, and focusing handwheel 61 also has a focusing ring 63, is provided with some fin 63a in the periphery of focusing ring 63.

Fig. 3, Fig. 4 and shown in Figure 5, when regulating in the telescope focal length of eyeglass 21 in the microscope base 2, during with the size of regulating the scenery of being observed and readability, focusing handwheel shown in Figure 5 61 is turned grafting advance as shown in Figure 4 focusing drum 3, reverse the some fin 63a on the focusing ring 63 then.The focusing handwheel 61 that rotates drives focusing drum 3 and circumferentially rotates, because focusing drum 3 is connected with microscope base 2, axially movable focusing drum 3 can promote eyeglass 21 and move in microscope base 2 vertically, thereby plays the purpose of regulating eyeglass 21 focal lengths simultaneously.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used lens barrel 1, convex shoulder 11, microscope base 2, eyeglass 21, focusing drum 3 morely, instead along 31, term such as block body 32, recess 33, guide 4, gathering sill 5, rotational structure 6, focusing handwheel 61, transmission ring 62, convex body 62a, focusing ring 63, fin 63a, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1, a kind of telescope focus adjusting mechanism, being arranged at telescopical lens barrel (1) locates, it comprises a microscope base (2) that is used to install eyeglass (21), microscope base (2) is cylindric and is loaded in the lens barrel (1), it is characterized in that, be provided with one between described lens barrel (1) and the microscope base (2) and can circumferentially rotate and be with the axially movable focusing drum of microscope base (2) (3), the inner periphery of described microscope base (2) is axially arranged with some guides (4), lens barrel (1) inwall is axially arranged with the gathering sill (5) that cooperatively interacts with guide (4), between described focusing drum (3) and the microscope base (2) is joining by screw thread, is provided with to be used to drive the rotational structure (6) that it circumferentially rotates on focusing drum (3).

2, telescope focus adjusting mechanism according to claim 1, it is characterized in that, the outer end of described focusing drum (3) is provided with the anti-edge (31) of the outer end that is buckled in lens barrel (1), and focusing drum (3) the inner is provided with the convex shoulder (11) that leans against lens barrel (1) inwall and goes up block body (32).

3, telescope focus adjusting mechanism according to claim 1 and 2 is characterized in that, described rotational structure (6) is for being arranged at least one recess (33) or the convex body of focusing drum (3) outer end.

4, telescope focus adjusting mechanism according to claim 3, it is characterized in that described rotational structure (6) also comprises an independent focusing handwheel (61) that can cooperate and drive focusing drum (3) rotation with recess (33) on the focusing drum (3) or convex body that is provided with.

5, telescope focus adjusting mechanism according to claim 4, it is characterized in that, described focusing handwheel (61) has a transmission ring (62) that can insert in the focusing drum (3), is being provided with the convex body (62a) or the recess that can cooperate with recess (33) on the focusing drum (3) or convex body on the transmission ring (62).

6, telescope focus adjusting mechanism according to claim 5 is characterized in that, described focusing handwheel (61) also has a focusing ring (63), is provided with some fins (63a) in the periphery of focusing ring (63).