CN1323310C - a pair of binoculars - Google Patents

Abstract

The present invention relates to a double-barrel telescope, particularly to a double-barrel telescope which can keep the light shafts of two lens barrels parallel and can simultaneously avoid the generation of a void or lock phenomenon between a guide rod and a guide rail. The present invention aims to provide the double-barrel telescope for avoiding the generation of the void and simultaneously improving the lock phenomenon of the guide rod in the guide rail so as to bring convenience to the operation of a user. The double-barrel telescope comprises a first lens barrel, a second lens barrel, a first bearing surface and an elastic component, wherein the second lens barrel is movably connected with the first lens barrel, and the light shafts of the two lens barrels can be kept parallel by the mode of the arrangement of the elastic component. Because the guide rod is sheathed with a plastic steel circular ring and is matched with the guide rail in interference, the generation of the void is avoided, and the lock phenomenon of the guide rod in the guide rail is simultaneously improved so as to bring the convenience to the operation of the user.

Description

a pair of binoculars

technical field

The invention relates to a pair of binoculars, in particular to a pair of binoculars capable of keeping the optical axes of two lens barrels parallel and avoiding gaps or jamming between guide rods and guide rails.

Background technique

Since the distance between the user's eyes is not the same, in order to be applicable to different users, it is well known that most binoculars are equipped with a mechanism design that can adjust the distance between the left and right lens barrels. For example, a guide rod disposed on the lens barrel can be used to slide in a guide rail, so that the user can manually adjust the distance between the two lens barrels.

However, as we all know, the guide rods are mostly made of metal, which is easy to produce gaps and cause the lens barrel to shake, which in turn causes the optical axis of the telescope to be deflected; in addition, if the interference fit method is adopted, the guide rods are likely to be stuck in the guide rails phenomenon, which will cause inconvenience in use.

About above-mentioned relevant content, can refer to U.S. Patent US 6236504.

Contents of the invention

In view of this, the object of the present invention is to provide a kind of binoculars, utilize the mode of arranging elastic member to make the optical axes of two lens tubes can keep parallel, in addition form interference fit by setting plastic-steel ring on the guide rod and guide rail, avoid to produce At the same time, it improves the phenomenon that the guide rod is stuck in the guide rail, so as to facilitate the user's operation.

The present invention is realized according to the following technical solutions:

The binoculars of the present invention include:

A first lens barrel 10 has a first optical axis X1 located at the center of the first lens barrel 10, a first guide rod 103 and a first bearing surface 101 set relative to the first guide rod 103, wherein the first The outside of a guide rod 103 is a cylinder;

A second lens barrel 20, having a second optical axis X2 parallel to the first optical axis X1, located at the center of the second lens barrel 20, a second guide rod 203 and relative to the second guide rod 203 A second bearing surface 201 is provided, wherein the first lens barrel 10 and the second lens barrel 20 are movably connected, and the outer side of the second guide rod is a cylinder;

A first cover plate 104 has a first guide rail 105 substantially perpendicular to the first optical axis X1 and a second guide rail 205 substantially perpendicular to the second optical axis X2, wherein the first guide rod 103 is arranged on the In the first guide rail 105 and the above-mentioned second guide rod 203 is arranged in the second guide rail 205;

A second cover plate 30, combined with the first cover plate 104, so that the first lens barrel 10 and the second lens barrel 20 are arranged between the first cover plate 104 and the second cover plate 30;

A first elastic member 31 is arranged between the first abutting surface 101 and the second cover plate 30, so that the first lens barrel 10 is perpendicular to the first guide rail 105 by the first guide rod 103 The first optical axis moves in the X1 direction;

A second elastic member 32 is arranged between the second bearing surface 201 and the second cover plate 30 , so that the second lens barrel 20 is vertically perpendicular to the second guide rail 205 by the second guide rod 203 The second optical axis moves in the X2 direction.

The first lens barrel 10 also has a first stopper 1021 substantially perpendicular to the first optical axis X1, and the first stopper 1021 is in contact with the first cover plate 104, so that the first lens barrel 10 is stably along the move along the first guide rail 105; and the second lens barrel 20 further has a second stopper 2021 substantially perpendicular to the second optical axis X2, and the second stopper 2021 is in contact with the first cover plate 104, This makes the second lens barrel 20 move stably along the second guide rail 205 .

The binoculars of the present invention also include:

A rotatable ring body R includes a first pivot R1 and a second pivot, and its center is set on the first cover plate 104, wherein the first pivot R1 also has a third guide rail R3, the second The pivot also has a fourth guide rail R4;

a first protruding rod P1, fixed on the first lens barrel 10, and moves in the third guide rail R3;

A second protruding rod P2 is fixed on the second lens barrel 20 and moves in the fourth guide rail R4; so when the first lens barrel 10 moves along the direction perpendicular to the first optical axis X1 and the second When the lens barrel 20 moves along the direction perpendicular to the second optical axis X2, the first and second protruding rods P2 move in the third and fourth guide rails R4 respectively, and make the rotatable ring R rotate.

The binoculars of the present invention, wherein the first lens barrel 10 also includes a first objective lens group 41, which moves along the first optical axis X1 in the first lens barrel 10; and the second lens barrel 20 also includes a The second objective lens group 42 (not shown in the figure) moves along the second optical axis X2 in the second lens barrel 20 . The structure of the second objective lens group is the same as that of the accompanying drawing five.

In the binoculars of the present invention, the first lens barrel 10 has a fifth guide rail 51 parallel to the first optical axis X1, and the first objective lens group 41 also has a third protruding rod 411, which is arranged on the first optical axis X1. Among the five guide rails 51, the first objective lens group 41 moves along the first optical axis X1 direction; and the second lens barrel 20 has a sixth guide rail 52 parallel to the second optical axis X2, and the second The objective lens group 42 has a fourth protruding rod 421 disposed in the sixth guide rail 52 such that the second objective lens group 42 moves along the second optical axis X2.

The binoculars of the present invention also include:

A linkage rod 80 has a seventh guide rail 81 perpendicular to the first optical axis X1 and an eighth guide rail 82 perpendicular to the second optical axis X2, so that the third protruding rod 411 passes through the seventh guide rail 81 The guide rail 81 moves along the seventh guide rail 81 , and the fourth protruding rod 421 passes through the eighth guide rail 82 and moves along the eighth guide rail 82 ;

A screw group 90, which is arranged on the second cover plate 30, and includes a screw 91 screwed to the above-mentioned linkage rod 80, and the linkage rod 80 is pushed to be parallel to the first optical axis X1 by rotating the screw 91 direction, and at the same time drive the first objective lens group 41 and the second objective lens group 42 to move along the first optical axis X1 direction and the second optical axis X2 direction respectively.

Threads are provided on the guide rod so that the guide rod can be locked on the aforementioned first lens barrel 10 and the second lens barrel 20 . Among them, the interference fit between the guide rail and the guide rail can prevent the lens barrel from shaking due to the tight connection between the guide rod and the guide rail.

In addition, the plastic-steel ring is set on the guide rod to form an interference fit with the guide rail, which avoids gaps and improves the phenomenon that the guide rod is stuck in the guide rail.

Lubricant can also be applied between the guide rod and the guide rail, so that the guide rod can slide in the guide rail more smoothly, so that the user can operate and adjust the distance between the two lens barrels 10 and 20 conveniently. In addition, cooperating with the first elastic member 31 and the second elastic member 32 arranged between the second cover plate 30 and the lens barrels 10, 20 can effectively improve the well-known phenomenon that the deviation of the optical axes X1 and X2 is easily generated due to uneven application of force. shifting phenomenon.

The beneficial effects of the present invention are:

1. The first lens barrel 10 and the second lens barrel 20 can move along the direction perpendicular to the first optical axis X1 and the second optical axis X2, so as to adjust the distance between the two lens barrels, and at the same time, it is convenient for users to see through Telescope to observe the scenery.

2. When the force is uneven due to pushing and pulling the lens barrel, the first elastic member 31 and the second elastic member 32 can provide a spring force so that the optical axes X1 and X2 of the two lens barrels are always kept parallel to avoid deviation .

3. Set the first guide rod 103 and the second guide rod 203 on the first lens barrel 10 and the second lens barrel 20 to cooperate with the first guide rail 105 and the second guide rail 205, thereby further ensuring that the first lens barrel 10, The parallelism of the sliding paths of the second lens barrel 20 can also keep the optical axes X1 and X2 of the first lens barrel 10 and the second lens barrel 20 from being deviated.

4. The first stopper 1021 and the second stopper 2021 respectively protruding above the first lens barrel 10 and the second lens barrel 20 pass through the first guide rod 103 and the second guide rod 203 and are located on the first cover plate 104 The upper two groups of parallel guide rails 105, 205 are closely matched to form a clamping effect, so the first lens barrel 10, the second lens barrel 20 and the first cover plate 104 can be tightly combined without loosening, and further A deflection of the optical axis can be avoided.

5. There are threads on the guide rod, which interfere with the guide rail to avoid gaps and cause the lens barrel to shake.

Description of drawings

Fig. 1 is the plan view above the binoculars of the present invention;

Fig. 2 is a schematic diagram when the binoculars of the present invention are not combined with the first cover plate;

Fig. 3 is the schematic diagram of the binoculars of the present invention combined with the first cover plate;

Fig. 4 is the schematic diagram of guide rod 103 in the present invention;

Fig. 5 is a sectional view of the objective lens group in the present invention.

Explanation of symbols in the figure:

10～First barrel

20～Second barrel

30～Second cover plate

31 ~ the first elastic member

32 ~ the second elastic member

103～the first guide rod

203～Second guide rod

104～the first cover plate

101～the first bearing surface

201～Second bearing surface

301, 302～contact part

103～the first guide rod

203～Second guide rod

105～the first guide rail

205～Second guide rail

1030～screw

1021～the first block

2021～second block

C ~ center point

P1 first protruding rod

P2～Second Protruding Rod

R ~ ring body

R1 ~ the first hub

R2～Second hub

R3～the third guide rail

R4～the fourth guide rail

S～Screw

X1～first optical axis

X2～second optical axis

41～the first objective lens group

42～Second objective lens group

51～Fifth guide rail

52～sixth guide rail

411～Third Protruding Rod

421～fourth protruding rod

80～connecting rod

81～the seventh guide rail

82～8th guide rail

90～screw group

91～screw

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings, but it is not intended to limit the scope of the present invention.

Please refer to Fig. 1 at first, and this figure is the plan view that represents binoculars of the present invention. As shown in the figure, the binoculars of the present invention mainly include a first lens barrel 10 , a second lens barrel 20 , a second cover 30 and a first cover 104 (please refer to FIGS. 2 and 3 ). Wherein the second cover plate 30 and the first cover plate 104 are locked by screws, and cover the outside of the above-mentioned first lens barrel 10 and the second lens barrel 20, and the second cover plate 30 and the first cover plate 104 are based on The first lens barrel 10 and the second lens barrel 20 are movably connected.

Viewed from above the telescope, the first lens barrel 10 and the second lens barrel 20 are arranged in parallel, wherein the central position of the first lens barrel 10 has a first optical axis X1, and the central position of the second lens barrel 20 has a second optical axis X2, and the first optical axis X1 is parallel to the second optical axis X2. In particular, the above-mentioned first lens barrel 10 and second lens barrel 20 can move along a direction perpendicular to the first optical axis X1 and the second optical axis X2 (as shown by the direction of the arrow), so as to adjust the distance between the two lens barrels. At the same time, it is convenient for users to observe the scenery through the telescope.

As mentioned above, the user can adjust the distance between the lens barrels 10, 20 by manually pushing and pulling the lens barrels 10, 20. 10 and 20 are respectively provided with a first elastic member 31 and a second elastic member 32 . Wherein, the first elastic member 31 and the second elastic member 32 are respectively arranged on the first bearing surface 101 of the first lens barrel 10 and the second bearing surface 201 of the second lens barrel 20; as shown in the figure, the first An elastic member 31 is respectively located between the first abutting surface 301 of the second cover 30 and the first abutting surface 101 of the first lens barrel 10 , and the second elastic member 32 is respectively located on the first abutment surface 301 of the second cover 30 Between the second abutting surface 302 and the second abutting surface 201 of the second lens barrel 20 .

In this embodiment, the first abutting surface 301, the second abutting surface 302, the first abutting surface 101, and the second abutting surface 201 are respectively perpendicular to the first optical axis X1 and the second optical axis X2, transparent Through the structural restriction of the first stopper 1021 and the second stopper 2021 and the effect of the first elastic member 31 and the second elastic member 32, the aforementioned first abutting surface 301, second abutting surface 302 and the first abutting surface can be made The surface 101 and the second bearing surface 201 are always kept parallel when the lens barrel moves. Wherein, the first elastic member 31 and the second elastic member 32 are corrugated steel sheets. Due to their elasticity, the surfaces of the first elastic member 31 and the second elastic member 32 can be respectively abutted against in the process of pushing and pulling the lens barrel. Connected to the first abutting surface 301 and the second abutting surface 302 of the second cover plate 30, when the lens barrel is pushed and pulled to produce uneven force, the first elastic member 31 and the second elastic member 32 can provide a The spring force keeps the optical axes X1 and X2 of the two lens barrels always parallel to avoid deviation.

Next, please refer to FIG. 2 , which is a schematic view showing the binoculars of the present invention without the first cover plate. As shown in the figure, viewed from the bottom of the telescope, several guide rods 103 and 203 are vertically locked and protrude from the surfaces of the first lens barrel 10 and the second lens barrel 20 respectively. In addition, above the first lens barrel 10 and the second lens barrel 20, there are protruding first stoppers 1021 and second stoppers 2021, which are in contact with the first cover plate 104 when combined (as shown in FIG. 3 ), and used It serves as a limiting reference plane for the sliding of the first lens barrel 10 and the second lens barrel 20 .

However, in order to keep the displacements of the lens barrels 10, 20 consistent with the center point C of the telescope, the telescope of the present invention further has a ring body R, wherein the ring body R has a first pivot portion R1 and a second pivot portion R2 can rotate symmetrically around the center point C, wherein the first pivot R1 has a third guide rail R3, the second pivot R2 has a fourth guide rail R4, and the center point C of the ring body R is fixed on the first lens barrel Up to 10. In addition, the first lens barrel 10 and the second lens barrel 20 are respectively connected to the first protruding rod P1 and the second protruding rod P2, wherein the positions of the first protruding rod P1 and the second protruding rod P2 are respectively located at the center of the aforementioned ring body R. In the third guide rail R3 and the fourth guide rail R4 formed, since the first protruding rod P1, the second protruding rod P2 and the center point C are always in a straight line in the third guide rail R3 and the fourth guide rail R4, the mirror can be made The distance of the cylinders 10, 20 relative to the center point C remains the same throughout.

Please refer to FIG. 3 again, which is a schematic view showing the binoculars of the present invention combined with the first cover plate. As mentioned above, the first cover plate 104 of the telescope is locked with the second cover plate 30, and is coated on the outside of the aforementioned lens barrels 10, 20; wherein the first cover plate 104 is provided with a first guide rail 105, a second The guide rail 205, when combined, the first guide rod 103 and the second guide rod 203 are respectively located in the first guide rail 105 and the second guide rail 205, wherein the first guide rail 105 and the second guide rail 205 are perpendicular to the directions of the aforementioned optical axes X1 and X2 .

In this way, when the lens barrels 10 and 20 are pushed and pulled, the first guide rod 103 and the second guide rod 203 can be driven to move in the first guide rail 105 and the second guide rail 205 respectively, so as to ensure that they move absolutely along the horizontal direction to avoid the optical axis of skew. Viewed from the bottom of the telescope, after assembly, the lens barrels 10, 20 can only move in the direction of the vertical optical axis X1, X2 through the first guide rod 103, the second guide rod 203 combined with the first guide rail 105, the second guide rail 205 Move, so that the user can manually push and pull the lens barrels 10, 20 to adjust the distance between the lens barrels.

In FIG. 3 , the first stopper 1021 and the second stopper 2021 protruding above the first lens barrel 10 and the second lens barrel 20 respectively pass through the first guide rod 103 and the second guide rod 203 and are located on the first guide rod 103 . The two sets of parallel guide rails 105, 205 on the cover plate 104 closely cooperate to form a clamping effect, whereby the lens barrels 10, 20 and the first cover plate 104 can be tightly combined without loosening, and can avoid Skew of the optical axis.

Please refer to FIG. 4 again, which is a schematic view showing the guide rod 103 of the present invention. Taking the first guide rod 103 disposed on the first lens barrel 10 as an example, the first guide rod 103 is provided with threads so that the first guide rod 103 can be locked on the aforementioned first lens barrel 10 . Wherein, an interference fit is formed between the first guide rail 105 and the tight connection between the first guide rod 103 and the first guide rail 105 can prevent the lens barrel from shaking due to clearance.

However, lubricant can be applied between the first guide rod 103 and the first guide rail 105, so that the first guide rod 103 can slide in the first guide rail 105 more smoothly, so as to facilitate the user to operate and adjust the two lens barrels 10, 20 distance between. In addition, coordinating the first elastic member 31 and the second elastic member 32 disposed between the second cover plate 30 and the lens barrels 10, 20 at the same time can effectively improve the conventional optical axis X1, X1, X1, X1, etc. The phenomenon of X2 offset.

Furthermore, the first lens barrel 10 further includes a first objective lens group 41 that moves along the first optical axis X1 in the first lens barrel 10; and the second lens barrel 20 further includes a second objective lens group 42 that moves in the second lens barrel 10. The lens barrel 20 moves along the second optical axis X2, and the actions of the first objective lens group 41 and the second objective lens group 42 are the same. In addition, the first lens barrel 10 has a fifth guide rail 51 parallel to the first optical axis X1, and as shown in FIG. , so that the first objective lens group 41 moves along the first optical axis X1 direction; and the second lens barrel 20 has a sixth guide rail 52 parallel to the second optical axis X2, and the second objective lens group 42 further has a fourth protruding rod 421, set in the sixth guide rail 52, so that the second objective lens group 42 moves along the direction of the second optical axis X2. Furthermore, as shown in Figure 1, a linkage rod 80 has a seventh guide rail 81 perpendicular to the first optical axis X1 and an eighth guide rail 82 perpendicular to the second optical axis X2, so that the third protruding rod 411 passes through the seventh guide rail 81 and moves along the seventh guide rail 81, and the fourth protruding rod 421 passes through the eighth guide rail 82 and moves along the eighth guide rail 82; and a screw group 90, which is arranged on the second cover plate 30, and includes a screw 91 screwed with the above-mentioned linkage rod 80, by turning the screw 91 to push the linkage rod 80 to move in a direction parallel to the first optical axis X1, and simultaneously drive the first objective lens group 41 and the second objective lens The group 42 moves along the direction of the first optical axis X1 and the direction of the second optical axis X2 respectively.

To sum up, the present invention can improve the deflection of the optical axis of the binoculars caused by adjusting the lens barrel in the prior art by providing the wave-shaped first elastic member 31 and the second elastic member 32 . In addition, by setting the first guide rod 103 and the second guide rod 203 on the first lens barrel 10 and the second lens barrel 20 to cooperate with the first guide rail 105 and the second guide rail 205, the first lens barrel 10 can be further ensured. 1. The parallelism of the sliding routes of the second lens barrel 20 can also keep the optical axes X1 and X2 of the first lens barrel 10 and the second lens barrel 20 from being deflected.

Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Anyone familiar with this art can make some changes and modifications without departing from the spirit and scope of the present invention. .

Claims (7)

1. binoculars is characterized in that comprising:

One first lens barrel has the first breasting face that a primary optic axis, one first guide rod and antithetical phrase first guide rod mutually are provided with;

One second lens barrel has one second optical axis, one second guide rod that is parallel to above-mentioned primary optic axis and the one second breasting face that is provided with respect to second guide rod;

One first cover plate has one first guide rail vertical with above-mentioned primary optic axis and one second guide rail vertical with above-mentioned second optical axis, and wherein above-mentioned first guide rod is arranged in first guide rail and above-mentioned second guide rod is arranged in second guide rail;

One second cover plate combines with above-mentioned first cover plate, and above-mentioned first lens barrel and second lens barrel are arranged between this first cover plate and this second cover plate;

One first elastic component is arranged between the first breasting face and second cover plate, make win lens barrel by first guide rod in first guide rail to move perpendicular to this primary optic axis direction; And

One second elastic component is arranged between the second breasting face and this second cover plate, make second lens barrel by second guide rod in second guide rail to move perpendicular to second optical axis direction.

2. binoculars as claimed in claim 1 is characterized in that described first lens barrel also has one first block perpendicular to primary optic axis, and first block contacts with first cover plate, and the lens barrel of winning is stably moved along first guide rail; And described second lens barrel also has one second block perpendicular to second optical axis, and second block contacts with first cover plate, makes second lens barrel stably move along second guide rail.

3. binoculars as claimed in claim 1 is characterized in that also comprising:

One rotatable ring body comprises one first pivot portion and one second pivot portion, and its center is arranged on first cover plate, and wherein the first pivot portion also has one the 3rd guide rail, and the second pivot portion also has one the 4th guide rail;

One first prominent bar is fixedly arranged on first lens barrel, and moves in the 3rd guide rail; And

One second prominent bar is fixedly arranged on second lens barrel, and moves in the 4th guide rail.

4. binoculars as claimed in claim 1 is characterized in that described first lens barrel also comprises one first objective lens, moves along primary optic axis in first lens barrel; And second lens barrel also comprise one second objective lens, in second lens barrel, move along second optical axis.

5. binoculars as claimed in claim 4 is characterized in that

Described first lens barrel has one the 5th guide rail that is parallel to primary optic axis, and first objective lens also has one the 3rd prominent bar, is arranged in the 5th guide rail, and the objective lens of winning is moved along the primary optic axis direction; And

This second lens barrel has one the 6th guide rail that is parallel to second optical axis, and second objective lens also has one the 4th prominent bar, is arranged in the 6th guide rail, makes second objective lens move along second optical axis direction.

6. binoculars as claimed in claim 5 is characterized in that also comprising:

One trace has perpendicular to one the 7th guide rail of primary optic axis and perpendicular to one the 8th guide rail of second optical axis, make the 3rd prominent bar be arranged in the 7th guide rail and move along the 7th guide rail, and the 4th prominent bar is arranged in the 8th guide rail and moves along the 8th guide rail; And

One screw rod group, it is arranged on second cover plate, and comprise a screw rod that is spirally connected with above-mentioned trace, promote trace by rotating screw bolt and move, and drive first objective lens simultaneously and second objective lens moves along the primary optic axis direction and second optical axis direction respectively with parallel primary optic axis direction.

7. as any described binoculars in the claim 1 to 6, it is characterized in that described first elastic component and second elastic component are wavy steel disc.

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