JP2001318297A - Binoculars - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide binoculars miniaturized by reducing outside dimension in the vertical directions, using a large operating member and made superior in operability. SOLUTION: An upper aperture 101K, extended in the optical axis direction of right and left telescopic optical system and opening internal space upward, is provided at the upper part of a frame 101, and a lower aperture 101L extended in the optical axis direction and opening the internal space downward is provided at the lower part of the frame 101. An optical adjusting mechanism 200, assembled in the internal space of the frame 101, has a 1st lens dowel 208, a 2nd lens dowel 209 and a cam ring 210 provided so as to move in the optical axis direction at a spot facing to the aperture 101L, and the 1st lens dowel 208, the 2nd lens dowel 209 and the cam ring 210 are coupled with an interlocking member coupled with the lens of the telescopic optical system via the aperture 101L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to binoculars for adjusting a focus and a zoom by moving a lens of a telescope optical system.

[0002]

2. Description of the Related Art Normally, binoculars adjust the distance between an objective lens and an eyepiece constituting a telescope optical system provided in left and right mirrors to focus an image formed by the telescope optical system. It is configured to make adjustments.
In binoculars in which the magnification of an image formed by a telescope optical system is adjustable, the objective lens or the eyepiece is composed of a plurality of lenses, and the magnification is adjusted by adjusting the distance between the lenses. It is configured to perform. A moving mechanism for moving these lenses is provided between the left and right mirror bodies, and moves the interlocking member connected to the lens in the optical axis direction of the lens by rotating the operation member. It is configured to be. There are binoculars in which the moving mechanism is housed in an internal space of a frame provided between left and right mirrors.

[0003]

In the above-mentioned conventional binoculars in which the moving mechanism is accommodated in the internal space of the frame, the interlocking member is connected to the moving mechanism at the upper part of the frame. Many. A plate-like member for closing the opening is attached to an upper portion of the frame.
The moving mechanism is provided with an annular operation member for performing focus adjustment and zoom adjustment, and the upper portion of the operation member is exposed through a window provided on the plate-shaped member to operate the operation member with a finger. It is supposed to be. As a result, the frame is disposed at a position closer to the upper side than the left and right mirrors, and a dead space is formed at the lower portion of the frame. Therefore, it is necessary to secure a space at the upper part of the frame for disposing the interlocking members and the operation members in a stacked state, while there is a useless space at the lower part of the frame, so that the binoculars There is a limit to reducing the outer dimensions in the vertical direction. Also,
Since the interlocking members and the operating members are arranged in a stacked state in the space above the frame, the size of the operating members is restricted, so that there is a disadvantage that it is difficult to operate the operating members. The present invention has been devised in view of the above circumstances, and an object of the present invention is to reduce the outer dimensions in the up-down direction, thereby enabling downsizing, using a large operation member, and improving operability. It is to provide excellent binoculars.

[0004]

According to the present invention, there is provided a left and right telescope optical system having a plurality of lenses, wherein some of the plurality of lenses are provided so as to be movable in the optical axis direction. Right and left mirror bodies each including the left and right telescope optical systems, and an interlocking member connected to a lens movably provided in the optical axis direction and integrally provided with the lens and movably provided in the optical axis direction. A binocular equipped with a moving mechanism for moving the interlocking member in the optical axis direction and a frame disposed between the left and right mirror bodies and having the moving mechanism housed in an internal space thereof, An upper opening extending in the optical axis direction and opening the internal space upward; and a lower opening extending in the optical axis direction and opening the internal space downward in a lower portion of the frame. , The moving mechanism includes: In a state where the mechanism is assembled, it is configured to be able to be incorporated into the internal space from the upper opening side of the frame, and the moving mechanism is located at a position facing the lower opening of the frame while being incorporated in the internal space. It has a connecting portion provided so as to be movable in the optical axis direction and connected to the interlocking member, and is configured such that the connection between the connecting portion and the interlocking member is performed through the lower opening. It is characterized by. Therefore, the connection between the connecting portion of the moving mechanism and the lens interlocking member connected to the lens is performed at the lower portion of the frame. Therefore, by arranging the space for connecting the connecting portion and the interlocking member at the lower portion of the frame, the space at the lower portion of the frame can be effectively used, and the vertical size of the binoculars can be reduced. Also, unlike the conventional case, a space for disposing the connecting portion and the interlocking member is not required in the upper portion of the frame, and only an operation member for operating the moving mechanism can be provided.
The operability can be improved by employing a larger operation member than before.

Further, according to the present invention, the frame includes a front wall and a rear wall which are arranged at an interval in the front-back direction in the optical axis direction, and a right wall connecting right edges of the front wall and the rear wall. A left wall connecting left edges of the front wall and the rear wall, and the upper opening is formed by upper edges and lower edges of the front wall, the rear wall, the right wall, and the left wall. And a lower opening are respectively defined, the plurality of lenses include an objective lens and an eyepiece, and the left and right mirrors extend in a direction facing the outside of a left wall and a right wall of the frame in the optical axis direction. Left and right guide shafts and left and right guide shaft holding portions for holding the left and right guide shafts are provided, and the left and right guide shafts have lens holding portions for holding the objective lens or the eyepiece along the guide shafts. Movably supported, coupling the left and right lenses with the interlocking member The conducted through the lens holding portion, a lens which is movable in the optical axis direction can be formed by the said objective lens or eyepiece held by the lens holding portion. Also, the present invention
The moving mechanism has an operation member rotatably provided around an axis extending in a direction parallel to the optical axis direction, and the connecting portion is moved in the optical axis direction in accordance with the rotation of the operation member. And the vertical position of the left and right guide shafts is configured to be lower than the vertical position of the axis of the operating member, and the left and right walls of the frame A concave portion extending toward the center in the left-right direction of the frame is formed at a position facing the left and right guide shafts and the guide shaft holding portion so as to extend along the left and right guide shafts. May have a convex shape with respect to the center of the frame in the left-right direction, and the concave portion may be configured to be able to accommodate the left and right guide shaft holding portions. Further, the present invention may be configured such that the operation member is formed in an annular shape.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing a state in which a right lens unit and a left lens unit are closed and a right eyepiece and a left eyepiece are accommodated in the embodiment of the binoculars of the present invention.
1 (A) is a plan view, FIG. 1 (B) is a front view showing FIG. 1 (A) viewed from the direction of arrow A1, and FIG. 1 (C) is FIG. 1 (A).
FIG. 5 is a side view showing a state viewed from the direction of arrow A2. FIG.
FIG. 2 is an external view of binoculars showing the same state as FIG.
2A is a bottom view, and FIG. 2B is a front view showing the state of FIG. 2A viewed from the direction of arrow A3. FIG. 3 is an external view showing a state in which the right lens unit and the left lens unit are opened and the right eyepiece tube and the left eyepiece tube are projected in the embodiment of the binoculars of the present invention, and FIG. FIG. 3B is a front view showing the state of FIG. 3A viewed from the direction of arrow B1, and FIG.
FIG. 3A is a side view as viewed from the direction of arrow B2, and FIG. 3D is a side view of FIG. 3A as viewed from the direction of arrow B3. FIG. 4 is an external view of binoculars showing the same state as FIG.
4 (A) is a bottom view, FIG. 4 (B) is a rear view showing FIG. 4 (A) viewed from the direction of arrow B4, and FIG. 4 (C) is FIG. 4 (A).
Is a side view showing a state viewed from arrow B5.

First, the overall structure of the binoculars will be described with reference to FIGS. In the following description, the left and right directions of the binoculars are defined such that the side of the binoculars where the objective lens is provided is the front, and the side where the eyepiece is provided is the rear. The binoculars 1000 include the support unit 100,
The optical system includes an optical adjustment unit 200, a right mirror 300, and a left mirror 400. The support unit 100 is provided between and supports the right mirror 300 and the left mirror 400 each having a telescope optical system. A diopter makeup ring 106 that is operated when performing diopter adjustment is attached to the support unit 100, and the optical adjustment unit 2 provided on the support unit 100 is mounted on the support unit 100.
Reference numeral 00 denotes a focus adjustment ring 202 (corresponding to an operation member in the claims) operated when performing focus adjustment of the left and right telescope optical systems, and a zoom adjustment ring 204 (operated in claims) operated when performing magnification adjustment. (Corresponding to operation members in the range).

The right mirror 300 and the left mirror 400 are
The support portion 100 is movably supported in the width direction (left-right direction), that is, in the interpupillary direction. The support 10
The support of each mirror by 0 is performed such that the right mirror 300 and the left mirror 400 move in association with each other by the same distance from the support 100 with the support 100 as the center. When the focus adjustment ring 202 is rotated, the right moving body 303 holding the eyepiece and the erecting prism and the right eyepiece 304 among the telescope optical systems provided in the right mirror 300 and the left mirror 400 are similar to those of the telescope optical system. The left moving body 403 holding the eyepiece and the erecting prism and the left eyepiece 404 are moved in the optical axis direction to perform focus adjustment. Further, when the zoom adjustment ring 204 is rotated, a part of the telescope optical system provided in the right mirror 300 and the left mirror 400 moves in the optical axis direction to adjust the magnification. Is configured.
This magnification adjustment will be described later in detail.

A focus adjustment ring 202 and a zoom adjustment ring 2
04 denotes the binoculars 1 when the binoculars 1000 are viewed from a plane.
000 are provided adjacent to each other at a position closer to the eyepiece tube, that is, a position closer to the rear on the center line in the left-right direction of the telescope optical system. It is provided rotatable about the same axis parallel to the optical axis. Further, the focus adjustment ring 202 and the zoom adjustment ring 204 are provided at a position of the support unit 100 facing above the binoculars 1000. Since the axis and the optical axes of the left and right telescope optical systems are parallel, the “axial direction” and the “optical axis direction” mean the same direction. Hereinafter, the description will be made using the phrase “optical axis direction” unless it is necessary to distinguish between “axial direction” and “optical axis direction”. Further, the diopter makeup ring 106 is provided at a position near the objective lens of the support unit 100 facing the lower side of the binoculars 1000 on the center line in the left-right direction of the binoculars 1000 when viewed from a plane, that is, a position closer to the front. I have. Therefore, when the left and right mirrors are held by the left and right hands, the focus adjustment ring 202 and the zoom adjustment ring 204 are at the same distance from either of the left and right hands, and can be operated by either hand. The effect is also improved as compared with the prior art.

Next, the configuration of each part of the binoculars will be described. 5 is a partial cross-sectional view showing a state in which a part of the binoculars is broken, FIG. 6 is a cross-sectional view taken along the line XX of FIG. 5, and FIG. 7 is an exploded perspective view showing the entire configuration of the binoculars. 8 is an exploded perspective view showing a part of the support part, FIG. 9 is an exploded perspective view showing a part of the support part and the optical adjustment part, FIG. 10 is an exploded perspective view showing the configuration of the optical adjustment part, and FIG. FIG. 4 is an exploded perspective view illustrating a configuration of a part of an adjustment unit and an upper plate. FIG. 12 is an exploded perspective view mainly showing a configuration of a right exterior body of the right mirror body, FIG. 13 is an exploded perspective view mainly showing a configuration of a right moving body, a right objective section, and a prism section of the right mirror body, and FIG. Mainly the first lens portion, the second lens portion of the body,
FIG. 3 is an exploded perspective view illustrating a configuration of an eyepiece. 15 is an exploded perspective view mainly showing the configuration of a left exterior body of the left mirror body, FIG. 16 is an exploded perspective view mainly showing the configuration of a left moving body, a left objective section, and a prism section of the left mirror body, and FIG. 17 is a left mirror. FIG. 2 is an exploded perspective view mainly illustrating the configuration of a first lens unit, a second lens unit, and an eyepiece of a body.

FIG. 18 is a diagram showing the structure of a frame.
FIG. 18A is a plan view of the frame, FIG. 18B is a cross-sectional view showing a state in which the frame is cut along a plane along the longitudinal direction, and FIG. 18C is a bottom view of the frame. FIG. 19 is a cross-sectional view showing a state in which the frame is broken at a plane orthogonal to the longitudinal direction, and FIG. 19A is a sectional view of FIG.
FIG. 19B is a sectional view taken along line BB of FIG. 18B.

FIG. 20 is a view showing the structure of the first lens interlocking plate. FIG. 20A is a front view of the first interlocking plate, and FIG.
FIG. 20B is a first view showing the state of FIG.
FIG. 20C is a plan view of the interlocking plate, and FIG.
FIG. 20D is a bottom view of the first interlocking plate, showing a state seen from above.
FIG. 20 is a side view showing a state where FIG. 20 (B) is viewed from an arrow D. FIG. 21 is a diagram showing the configuration of the second lens interlocking plate, and FIG. 21A is a front view of the second interlocking plate.
FIG. 21B is a second view showing the state of FIG.
FIG. 21C is a plan view of the interlocking plate, and FIG.
It is a bottom view of the 2nd interlocking plate which shows the state seen from. FIG.
FIG. 23 is a plan view of an optical adjustment unit showing a state where the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to the low magnification side. FIG. FIG. 5 is a plan view of the optical adjustment unit showing a state where the telescope optical system is adjusted to a high magnification side. FIG. 24 is a bottom view of the optical adjustment unit showing a state in which the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to the low magnification side. FIG. It is a bottom view of the optical adjustment part which shows the state which approached and the telescope optical system was adjusted to the high magnification side.

First, the configuration of the support section and the optical adjustment section will be described with reference to FIGS. The support portion 100
Frame 101 (corresponding to the frame in the claims),
A support plate 102 (corresponding to a support plate in the claims), a bottom cover 103, an upper plate 104 (corresponding to an upper plate in the claims),
It includes an interlocking gear 105, a right interlocking plate 109, a left interlocking plate 110, and the like. In addition, the bottom lid 103 includes:
A diopter makeup ring 106 and a diopter difference eccentric seat 107 that constitute a part of an optical adjustment unit 200 described later are attached.

The support plate 102 is formed in the shape of a rectangular plate, and is disposed so that its longitudinal edges are located before and after the binoculars, and its lateral edges perpendicular to the longitudinal direction are located on the left and right of the binoculars. I have. In the vicinity of the right edge of the upper surface of the support plate 102, two convex portions 102A1, 1
02A2, similarly, near the left edge of the upper surface of the support plate 102, two protrusions 102B1, spaced apart in the front-rear direction.
102B2 is protruded. Also, on the upper surface of the support plate 102, two convex portions 102B3 and 102A3 are protruded at intervals in the front-rear direction on the center line in the horizontal direction, and a circular shape is formed between the front convex portion 102B3 and the front edge. Through hole 102
C is provided, and a screw insertion hole 102D is provided to penetrate between the two convex portions 102B3 and 102A3. In the vicinity of the front edge of the support plate 102, a long hole 102H penetrating in the thickness direction is provided on the right and left sides of the center line in the left-right direction.
1, 102I1 are provided extending in the left-right direction, respectively. Similarly, near the rear edge of the support plate 102, long holes 102H2 and 102I2 penetrating in the thickness direction are provided on the right and left sides of the center line in the left and right direction, respectively, and extend in the left and right direction. Further, a notch 102J opened to the right at a right edge of the support plate 102 with an interval in the front-rear direction.
1, 102J2 are provided respectively, and cutouts 102K1 and 1
02K2 are provided.

The right interlocking plate 109 has a rectangular main body 109A.
And an extension 109B extending leftward from a position near the rear of the left edge of the main body 109A. Body 10
At the front and rear edges of 9A, the protrusions 102A1, 1
Guide groove 109 extending in the left-right direction into which 02A2 is inserted.
A1 and 109A2 are provided, and the extension 109B is provided with a guide groove 109B1 extending in the left-right direction into which the convex portion 102A3 is inserted. Also, screw insertion holes 109C1 and 109C1 are provided at the front and rear corners of the right edge of the main body 109A.
C2 is provided therethrough, and screw insertion holes 109D1 and 109D2 are provided therethrough at the front and rear corners of the left edge of the main body 109A. These screw insertion holes 109C1, 10C
The intervals of 9C2 are the long holes 102H1, 102H of the support plate 102.
It is configured to be the same as the interval of H2, and the screw insertion hole 1
The interval between 09D1 and 109D2 is notch 10 of support plate 102.
It is configured to be the same as the interval between 2J1 and 102J2.

The left interlocking plate 110 has a rectangular main body 110A.
And an extension 110B extending rightward from a location near the front of the right edge of the main body 110A. Body 11
On the front and rear edges of 0A, the protrusions 102B1, 1
Guide groove 110 extending in the left-right direction into which 02B2 is inserted.
A1 and 110A2 are provided, and the extension 110B is provided with a guide groove 110B1 extending in the left-right direction in which the convex portion 102B3 is inserted. Further, screw insertion holes 110C1 and 110C are provided at the front and rear corners of the left edge of the main body 110A.
C2 is provided therethrough, and screw insertion holes 110D1 and 110D2 are provided therethrough at front and rear corners of the right edge of the main body 110A. These screw insertion holes 110C1, 11
The intervals of 0C2 are the long holes 102I1, 102 of the support plate 102.
It is configured to be the same as the interval of I2, and the screw insertion hole 1
The interval between 10D1 and 110D2 is the notch 10 in the support plate 102.
It is configured to be the same as the interval between 2K1 and 102K2.

A rack 109B2 extending in the left-right direction extends on the front edge of the extension 109B of the right interlocking plate 109, and extends in the left-right direction on the rear edge of the extension 110B of the left interlocking plate 110. Existing racks 110B2 are formed. The right interlocking plate 109 has guide grooves 109A1, 1
09A2 and 109B1 are convex portions 102A1 to 102A3.
While the projections 102A1 to 102A3
Screw through a washer 801 in a screw hole provided in
2 is attached to the support plate 102 by being screwed, and is supported movably in the left-right direction.

The same applies to the left interlocking plate 110.
With the guide grooves 110A1, 110A2, and 110B1 inserted into the convex portions 102B1 to 102B3, the screws 802 are screwed into the screw holes provided in the convex portions 102B1 to 102B3 via the washers 801 to support the support plate. It is attached to 102 and is supported movably in the left-right direction. The support plate 1 is inserted into the screw insertion hole 102D of the support plate 102.
A shaft portion of a screw 803 inserted from the lower surface side of the support plate 02 is inserted through the center hole of the gear 105 on the upper surface side of the support plate 102 and screwed into a screw hole 103A of a bottom cover 103 described later. It has become. The gear 105 is a rack 109B of the right interlocking plate 109 and the left interlocking plate 110 described above.
2. Each rack 109B is sandwiched between
2, 110B2.

The bottom cover 103 has a rectangular plate shape, and its longitudinal direction is disposed above the support plate 102 along the front-back direction. The bottom lid 103 has an extension 109B of the right interlocking plate 109 and a left interlocking plate 11
It is positioned on the support plate 102 with the zero extension 110B interposed therebetween, and is fixed between the bottom of the frame 101 and the upper surface of the support plate 102 as described later.

The positioning of the bottom cover 103 with respect to the support plate 102 is performed as follows. That is, the bottom cover 103
Of the bottom cover 103 are formed on the left and right sides of the rear side edge of the bottom cover 103. The notch 103C fits into the left and right convex portions 102F provided near the rear edge of the upper surface of the support plate 102 so as to sandwich the center line of the support plate 102 in the left and right direction. The support plate 102 is positioned. Further, screw insertion holes 102G penetrating vertically are provided at the centers of the left and right convex portions 102F, and screws 806 are inserted into these screw insertion holes 102G.

The bottom cover 103 is provided with two projections 103D at the front and two projections 103D at the rear with the screw hole 103A interposed therebetween, protruding downward in the thickness direction of the bottom cover 103. Each convex part 103
D is a strip-shaped portion that extends in a direction orthogonal to the longitudinal direction of the bottom lid 103 and that is sandwiched between two long grooves formed through the bottom lid 103 in the thickness direction. The band-shaped portion is formed so that the center in the longitudinal direction is curved downward in the thickness direction of the bottom lid 103. These four convex portions 103D are provided on the extending portion 1 of the right interlocking plate 109.
09B and the upper surface of the extending portion 110B of the left interlocking plate 110 are provided with a pressing force to apply a frictional force when the right interlocking plate 109 and the left interlocking plate 110 move in the left-right direction. This frictional force causes each of the mirror bodies 300 and 40 to be described later.
The operation feeling at the time of moving operation in the left and right directions of 0 can be improved.

According to the above configuration, the rack 109B2 of the right interlocking plate 109 and the rack 110B2 of the left interlocking plate 110 are meshed with the gear 105. It moves in conjunction with the approaching or separating direction. Also, the rack 109B
2. Since the pitch of the teeth of the rack 110B2 and the gear 105 is configured to be the same, the right interlocking plate 109 and the left interlocking plate 110 are the same in opposite directions in the left and right directions about the rotation center of the gear 105. It moves only a distance.

Further, a through hole 103G is provided at a position between the left and right convex portions 103B near the front side of the bottom cover 103. The diopter makeup ring 106 has a diameter of the through hole 10.
A disk-shaped main body 106A larger than the inner diameter of 3G, and a shaft portion 106B protruding upward from the upper center of the main body 106A.
And a screw hole 106C provided in the shaft portion 106B along the axial direction. Then, as described later, the diopter difference is adjusted by rotating the main body 106A about the axis of the shaft portion 106B. Also,
Around the shaft portion 106B, two concave portions 106D are provided so as to sandwich the shaft portion 106B, and an arc-shaped concave groove 106E is formed along the circumferential direction of the shaft portion 106B. Here, if at least one of the concave portion 106D and the convex portion 107C is at least one, transmission of the axial rotation drive is possible.

The diopter difference eccentric seat 107 has a disk-shaped main body 107A whose diameter is larger than the inner diameter of the through hole 103G,
It comprises an eccentric hole 107B penetrating in the thickness direction at a position eccentric from the center of the main body 107A, and two convex portions 107C fitted into two concave portions 106D of the dioptric makeup ring 106.

The shaft portion 106B of the dioptric makeup ring 106 is inserted into the through hole 103G from below the back cover 103, and is inserted into the eccentric hole 107B of the diopter eccentric seat 107. In this state, the two convex portions 107C of the diopter difference eccentric seat 107 are fitted into the two concave portions 106D of the diopter makeup ring 106, respectively. The eccentric hole 107B of the diopter difference eccentric seat 107
A screw 805 is inserted through a spring washer 804, and a shaft portion of the screw 805 is screwed into a screw hole 106 </ b> C formed in a shaft portion 106 </ b> B of the diopter makeup ring 106 so that the diopter difference eccentric seat 107 is formed. Is attached to a dioptric makeup ring 106 via a bottom cover 103. Further, as shown in FIG. 6, the main body 106 of the dioptric makeup ring 106 is in this state.
A is a support plate 1 through a through hole 102C of the support plate 102.
02 is facing outward from the lower surface of 02. Also,
Diopter makeup ring 106 attached to diopter eccentric seat 107
Are located near the front side on the center line of the support plate 102 in the left-right direction.

Further, a through hole 103G on the lower surface of the bottom lid 103 is provided.
Is formed in the peripheral edge of the through hole 103 </ b> G in the circumferential direction.
It is configured to be rotatable in a state fitted with 06E. Then, a diopter makeup ring 1 is provided at the circumferential end of the ridge.
The amount of rotation of the diopter makeup ring 106 is regulated by contacting the circumferential end of the concave groove 106E of No. 06. The diopter makeup ring 106 and the diopter difference eccentric seat 107 are integrally fixed in the rotation direction of the shaft portion 106B by fitting the concave portion 106D and the convex portion 107C.
06B are configured to be mutually movable in the axial direction.

Also, a through hole 103G on the upper surface of the back cover 103
Of the click engaging portion 10 formed of a plurality of irregularities extending at intervals in the circumferential direction of the through hole 103G.
When 3H is formed and the diopter difference eccentric seat 107 rotates,
When the convex portion provided on the lower surface of the diopter difference eccentric seat 107 is disengaged from the click engagement portion 103H, a click feeling is given when the diopter makeup ring 106 is rotated. ing. At this time, the spring washer 804 has a function of pressing the lower surface of the main body 107A of the diopter difference eccentric seat 107 toward the click engaging portion 103H.

As shown in FIGS. 9, 10, 18, and 19, the frame 101 has a rectangular front wall 101A.
And a rear wall 101B, and a rectangular right wall 101C and a left wall 101D connecting the right and left portions of the front wall 101A and the rear wall 101B. The top and bottom of the frame 101 are opened in a rectangular shape. The bottom of the frame 101 is covered with a bottom
Attached to. That is, the four screws 806 are inserted into the four screw insertion holes 102G formed in the support plate 102 and screwed into the four screw holes 101E formed at the four corners at the bottom of the frame 101, respectively.

The upper plate 104 has a rectangular plate shape having substantially the same size as the support plate 102, and has a longitudinal edge before and after the edge of the binoculars, and a lateral edge perpendicular to the longitudinal direction of the binoculars. It is arranged so that it may be located on each side. That is, the upper plate 104 extends in the optical axis direction of the telescope optical system and in the left-right direction orthogonal to the optical axis direction. The upper plate 104 is provided on the upper opening 101 of the frame 101.
Mounted to close K. That is, four screws 807 are connected to four screw insertion holes 1 formed in upper plate 104.
04A are screwed into four screw holes 101F formed at the four upper corners of the frame 101, respectively.
A window 10 for allowing a part of an outer peripheral portion of a focus adjustment ring 202 and a part of an outer peripheral portion of a zoom adjustment ring 204, which will be described later, to face outward at positions on the rear side of a center line of the upper plate 104 in the left-right direction.
4A and 104B (corresponding to the window in the claims) are provided. A rectangular decorative plate 101I and a nameplate 101J are bonded to the front surface of the front wall 101A and the rear surface of the rear wall 101B of the frame 101, respectively.

According to the above-described support portion 100, the frame 101, the support plate 102, the bottom cover 103, and the upper plate 104 are integrally fixed. And the right interlocking plate 10
9 and the left interlocking plate 110 are supported by the support plate 102 so as to be movable in the left-right direction.

Next, the configuration of the optical adjustment unit 200 will be described. The optical adjustment unit 200 is provided with the frame 101 described above.
Main shaft 201, focus adjustment ring 202, zoom adjustment ring 204, moving shaft 206, cam ring 207, first lens piece 208 (corresponding to the connecting portion and second connecting portion in the claims), second lens piece 209 (corresponding to the connecting portion and the third connecting portion in the claims), the cam frame 210 (corresponding to the connecting portion and the first connecting portion in the claims), and the top guide shaft 21
1, 212, a first lens interlocking plate 213 (corresponding to the interlocking member and the second interlocking member in the claims), a second lens interlocking plate 214 (corresponding to the interlocking members and the third interlocking member in the claims), A press plate (blade) 215 (corresponding to an interlocking member and a first interlocking member in the claims), a mirror interlocking shaft 216 (corresponding to an interlocking member and a first interlocking member in the claims) and the like are configured. ing.

The main shaft 201 has a mirror body 3 whose axis is described later.
The front end and the rear end of the frame 101 extend parallel to the optical axis of the frame 101 and the front wall 1 of the frame 101, respectively.
01A and bearing portions 10 provided on the rear wall 101B, respectively.
1A1 and 101B1 (FIG. 18,
See FIG. 19). The main shaft 201 is configured such that the position of the axis in the left-right direction coincides with the center position of the frame 101 in the left-right direction. The main shaft 201 is configured so that the vertical position of its axis is higher than the vertical position of the optical axis of the left and right telescope optical systems described later. The focus adjustment ring 202 and the zoom adjustment ring 204 are provided rotatably about the axis of the main shaft 201.
Further, the diopter makeup ring 106 described above is provided so as to be rotatable around an axis orthogonal to the axis of the main shaft 201. On the outer peripheral surface of the front end portion of the main shaft 201, concave grooves 201A extending along the axial direction are formed at intervals in the circumferential direction. The concave groove 201A is adapted to be fitted to a convex ridge 207B formed in a hole 207A of the cam ring 207 described later.

The zoom adjustment ring 204 comprises a ring-shaped main body 204A and a rubber ring 204B mounted on the outer periphery of the main body 204A. The main body 204A is
The main shaft 201 is integrally attached to the main shaft 201 by screws 808 in a state where the rear end of the main shaft 201 is inserted into the hole 204A1 in the inner peripheral portion.

The cam ring 207 is formed in the shape of a cylindrical wall having a thickness in the axial direction and the circumferential direction, and the convex portion 207B fitted in the concave groove 201A of the main shaft 201 is formed in the hole 207A along the axis. The main shaft 20 is formed on the inner peripheral surface 207A.
1 can be moved along the spindle 201 in a state where it is inserted,
Further, the main shaft 201 is supported by the main shaft 201 so as not to rotate in the circumferential direction. Outer peripheral surface 207C of cam ring 207
Have two first cam grooves 207D and two second cam grooves 2
07E is formed.

The moving shaft 206 is formed between a cylindrical first shaft portion 206A provided on the rear side, a second shaft portion 206B provided on the front side, and the first and second shaft portions. The flange portion 206C, the first shaft portion 206A, and the flange portion 2
06C, and a hole 206D penetrating through the second shaft portion 206B in the axial direction of the moving shaft 206. The inner diameter of the hole 206D is formed so that the main shaft 201 can rotate when the main shaft 201 is inserted.

A spiral guide groove 206A1 is formed on the outer peripheral surface of the first shaft portion 206A.
6A1 includes a first groove portion 206A11 having a large pitch in the axial direction of the first shaft portion 206A, and a second groove portion 206A12 connected to the first groove portion 206A11 and having a small pitch in the axial direction of the first shaft portion 206A. The first groove portion 206A11 is provided on the rear side of the shaft portion 206A, and the second groove portion 206A is provided on the rear side.
A12 is provided. The focus adjustment ring 202 includes an annular main body 202A and a rubber ring 202B attached to the outer periphery of the main body 202A. The outer diameters of the focus adjustment ring 202 and the zoom adjustment ring 204, that is, the rubber ring 2
The outer diameters of 02B and 204B are configured to be substantially the same. On the inner peripheral surface 202A1 of the main body 202A,
A holding portion 202A11 that holds the two balls 203 engaged with the guide groove 206A1 so as to be able to rotate and not to move around the axis is provided at a position facing each other about the axis.

The cam frame 210 has a substantially annular shape, and its inside 210A has the shaft 21 at a position symmetrical with respect to the axis.
1 and 212 are held in a state of extending in parallel with the axis, and a first lens piece 208 and a second lens piece 209 are provided movably along axes 211 and 212, respectively. The cam frame 210 is provided on the right wall 101C of the frame 101.
Inner surface 101C1 and left wall 101D inner surface 101D1
Thus, the main shaft 201 is supported so as to be movable in the axial direction (front-rear direction) and not to rotate around the axis.

Further, the rear ends of the right arm 210C1 and the left arm 210C2 of the annular portion 210A of the cam frame 210 have screw holes 210C11 and 210C facing rearward at positions facing rearward.
21 are provided. Further, a screw hole (not shown) facing rearward is provided in a portion facing rearward of the connecting arm 210D. These screw holes 210C11, 210C21,
As shown in FIG. 11, screw insertion holes 206C1, 206C2, and 206C provided in a flange portion 206C of the moving shaft 206 are provided in screw holes (not shown) facing the rear.
3 is screwed into each of the screws 809,
The cam frame 210 is attached to the moving shaft 206. Further, a screw hole 210D1 facing downward is provided at the rear end of the connecting arm 210D.

As shown in FIGS. 9, 10, and 11, the right and left edges of the flange portion 206C of the moving shaft 206 project from the convex portions 206C4 and 206C5, respectively.
Is protruding. As shown in FIGS. 18 and 19, the inner side surface 101C1 of the right wall 101C of the frame 101 is also provided.
Guide grooves 101C11 and 101D11 are formed at the upper edge of the inner side surface 101D1 of the left wall 101D so as to extend in the optical axis direction. Convex portions 206C4, 206C5 of moving shaft 206
Are guide groove portions 101C11, 1
01D11 and movably supported by sliding in the axial direction while being engaged with the moving shaft 206 and the cam frame 2.
10 is supported so as to be movable in the axial direction (front-back direction) of the main shaft 201 and not to rotate in the direction around the axis. The front portions of the moving shaft 206 are regulated by the contact of the convex portions 206C1 and 206C2 with the step portions 101C12 and 101D12 provided on the front side of the guide grooves 101C11 and 101D11.
The rear position is regulated by abutment of 206C5 on wall 101G1 behind frame 101 of first housing 101G. The second shaft portion 206B of the moving shaft 206 is inserted into the hole 207A of the cam ring 207, and the cam ring 207 is rotatably supported by the second shaft portion 206B. The cam frame 210 is attached to the flange portion 206C of the moving shaft 206 with three screws 809 in a state in which the cam ring 207 is housed, and the cam frame 210 and the moving shaft 206 are integrally fixed.

The lower and right edges of the right and left walls 101C and 101D of the frame 101 are guided by projections extending in the axial direction, that is, in the optical axis direction. Parts 101C2 and 101D2 are provided at intervals in the left-right direction. These two guides 10
1C2 and 101D2 support first and second lens connecting members 213 and 214 described below so as to be movable in the optical axis direction and immovable in a direction orthogonal to the optical axis direction.

The first lens piece 208 is a cam ring 2
07 of the two balls 21 engaged with the first cam groove 207D
It has a holding portion (spherical concave portion) that holds the OB between the first cam groove 207D and the first cam groove 207D so as to be able to rotate. On the other hand, the second lens piece 209 has a holding portion that holds the two balls 210B engaged with the second cam groove 207E of the cam ring 207 so as to be able to rotate between itself and the second cam groove 207E. And
When the main shaft 201 rotates and the cam ring 207 held by the cam frame 210 rotates, the first and second cam grooves 207D and 207E of the cam ring 207 rotate with respect to the cam frame 210. By this rotation, the first lens piece 208 and the second lens piece 209 move within the cam frame 210 along the optical axis direction.

Here, the first lens frame 208 and the second lens frame 209 are arranged at right and left portions of the cam frame 210 in the cam ring 2.
07 are supported and arranged so as to sandwich each other, and move in opposite directions along the optical axis direction. As a result, the moving ranges of the first lens piece 208 and the second lens piece 209 in the optical axis direction overlap each other. ing. A mounting portion 208A having a screw hole extending in the vertical direction is provided at a position facing the lower portion of the lower portion of the first lens piece 208, and the mounting portion 208A is provided on the frame engaging portion 2 of the first lens interlocking plate 213.
13C is attached by a screw 811 in the engaged state. A mounting portion 209A having a screw hole extending in the vertical direction is provided at a position facing the lower part of the lower part of the second lens piece 209, and the mounting part 209A is engaged with the frame engaging part 214C of the second lens interlocking plate 214. In this state, it is attached by a screw 812.

The holding plate 215 has a rectangular plate shape and is provided with a hole 215B penetrating in the thickness direction. The screw 810 inserted through the hole 215B is screwed into the screw hole 210C1 of the mounting portion 210C provided on the bottom wall of the cam frame 210.
Is attached to the cam frame 210 by being screwed into the cam frame 210. Therefore, the holding plate 215 is connected to the moving shaft 206 and the cam ring 20.
7. It is provided movably in the front-rear direction integrally with the cam frame 210. Then, the holding plate 215 and the frame 101
A first lens interlocking plate 213 and a second lens interlocking plate 214 are arranged between the first lens interlocking plate 213 and the second lens interlocking plate 214. First lens interlocking plate 2
Reference numeral 13 is attached to the first lens piece 208 by a screw 811, and is configured to move integrally with the first lens piece 208. Second lens interlocking plate 214
Is attached to the second lens piece 209 by a screw 812, and is configured to move integrally with the second lens piece 209.

As shown in FIG. 20, the first lens interlocking plate 213 has a rectangular plate-shaped first central portion 213A connected to the first lens piece 208 and right and left edges of the first central portion 213A. The first arm portion 213B is formed integrally with the first arm portion 213B which is bent downward once and then linearly extends left and right in the left and right direction. First central part 213A
Is provided with a frame engaging portion 213C which is engaged with the mounting portion 208A of the first lens frame 208 and is attached with the screw 811. In addition, the first arm 213B on the right and left
A guided portion 213 formed of a ridge extending along the axis is provided at a portion facing below a portion joined to the central portion 213A.
E and 213F are provided. That is, the right and left first arms 213B extend rightward and leftward from the guided portions 213E and 213F. The guided portions 213E and 213F are supported so as to be movable in the optical axis direction while being engaged with the guide portions 101C2 and 101D2 of the frame 101, respectively.

The lower surface and the upper surface of the first central portion 213A in the thickness direction are respectively provided with the holding plate 215 and the frame 10A.
1 is supported so as to be movable in the front-rear direction while being sandwiched between the lower portion of the first member 1 and the second member 1. Further, a concave groove 213D is formed at the right end and the left end of the first arm portion 213B along the extending direction of the arm. The first lens units 307 and 407 of the system are configured to be engaged so as to be movable in the left-right direction.

As shown in FIG. 21, the second lens interlocking plate 214 has a rectangular plate-like second central portion 214A connected to the second lens piece 209 and right and left edges of the second central portion 214A. A second arm 214B that is bent downward once and then linearly extends left and right in the left-right direction is integrally formed. 2nd central part 214A
Is provided with an extending portion 214A1 extending forward from the second central portion 214A. A frame engaging portion 214C to be attached is provided. The rear portion of the lower surface of the extending portion 214A is connected to the upper surface of the second central portion 214A, and the lower surface of the extending portion 214A and the upper surface of the second central portion 214A have the same height position. I have. The second on the right and left
Guided portions 214E and 214F formed of ridges extending along the axis are provided at portions of the arm portion 214B which face below a portion joined to the second central portion 214A. That is, the right and left second arm portions 214B are connected to the guided portion 2
14E and 214F extend rightward and leftward.

The guided portions 214E and 214F are supported movably in the optical axis direction while being engaged with the guide portions 101C2 and 101D2 of the frame 101, respectively. Further, the second central portion 214A has a lower surface and an upper surface in the thickness direction, respectively, of the holding plate 215 and the frame 101.
It is supported so as to be movable in the front-rear direction while being sandwiched between the lower part and the lower part. Further, a concave groove 214D is formed at the right end and the left end of the second arm portion 214B along the extending direction of the arm, and these two concave grooves 214D are provided with right and left telescope optics described later. The second lens units 308 and 408 of the system are configured to be engaged so as to be movable in the left-right direction.

First and second lens interlocking plates 213 and 214
The first lens interlocking plate 213 is positioned forward in the optical axis direction, the second lens interlocking plate 214 is positioned rearward in the optical axis direction, and the second lens interlocking plate 214 is sandwiched between the holding plate 215 and the lower portion of the frame 101. The extension part 214A1 of the second central part 214A is arranged in contact with the upper surface of the one central part 213A. Then, in this state, the first and second arms 213D, 214D
Are configured such that the positions in the height direction of the first and second central portions 213A and 214A are substantially the same so that the positions in the height direction are substantially the same.

Further, a hole 215A penetrating in the left-right direction is formed at a position near the front of the holding plate 215, and the mirror interlocking shaft 216 is inserted into the hole 215A and the right and left portions are held. The plate 215 is held by the holding plate 215 in a state of extending outward from left and right edges. And
Right moving body 30 holding right and left eyepieces, which will be described later.
3 and the left moving body 403 are provided with an engaging portion 303A1, which is movably engaged with the mirror interlocking shaft 216 in the axial direction thereof.
403A1 is provided, and the right moving body 303 and the left moving body 40 are provided.
Reference numeral 3 is configured to be movable in the left-right direction along the lens body interlocking shaft 216 and to move in the front-rear direction integrally with the lens body interlocking shaft 216.

The mirror interlocking shaft 216 held by the press plate 215 is connected to the first lens interlock plate 123 and the second lens interlock plate
It is provided so as to be located between the lens interlocking plates 124. Then, the first and second lens interlocking plates 123 and 124
Are connected to first and second lens pieces 208 and 209, respectively. These first and second lens pieces 208 and 209 are supported by a cam ring 207 and a cam frame 210,
07 and the cam frame 210 are provided integrally with the holding plate 215 so as to be movable in the axial direction, that is, in the optical axis direction.
Therefore, during the focus adjustment operation described later, the first and second focus adjustment operations are performed.
The lens interlocking plates 123 and 124 are moved in the optical axis direction integrally with the holding plate 215.

Further, in the present embodiment, the main shaft 201, the focus adjusting ring 202, the ball 203, the zoom adjusting ring 204, the moving shaft 206, the cam ring 207, the first lens piece 208, and the second Lens top 20
9, the cam frame 210, and the frame guide shafts 211 and 212 constitute a moving mechanism described in the claims. And
The moving mechanism is configured such that the moving mechanism can be incorporated into the internal space from the upper opening 101K side of the frame 101 in an assembled state.

Here, the positional relationship among the frame 101, the first lens interlocking plate 213, the second lens interlocking plate 214, and the pressing plate 215 will be described in more detail. As described above, the optical adjustment mechanism 20 is provided in the internal space of the frame 101.
0, the first and second lens frames 208, 20
9. The cam ring 210 is incorporated. Then, at the portion facing the lower opening 101L of the frame 101, the mounting portions 208A, 290 of the first and second lens pieces 208, 209 are provided.
A is located, and the mounting portion 210C of the cam frame 210 is provided movably in the optical axis direction. These mounting portions 208
A, 290A and the mounting part 210C are the first and second parts, respectively.
It is configured to be connected to the lens interlocking plates 213, 214, and the holding plate 215, and the mounting portions 208A, 290A,
Mounting part 210C and first and second lens interlocking plates 213 and 21
4. The connection with the holding plate 215 is made via the lower opening 101L of the frame 101. Accordingly, in the space between the lower part of the frame 101 and the support plate 102, the mounting portions 208A, 290A, 210C, the first and second lens interlocking plates 213, 214, and the holding plate 215.
The space between the mounting portions 208A, 290A, 210C, the first and second lens interlocking plates 213, 214, and the holding plate 215 is not required above the frame 101. The space between the lower portion of the frame 101 and the support plate 102, which has been a dead space, can be effectively used, the vertical dimension of the binoculars can be reduced, and the binoculars can be downsized. In addition, the mounting portion 208 is provided on the upper portion of the frame 101.
A, 290A, the mounting portion 210C, the space for disposing the first and second lens interlocking plates 213 and 214, and the pressing plate 215 are not required, and only the focus adjustment ring 202 and the zoom adjustment ring 204 can be provided. Therefore, a focus adjustment ring 202 and a zoom adjustment ring 204 larger than those in the related art can be adopted above the frame 101, and the operability thereof can be improved.

Next, the range of movement of the first lens interlocking plate 213 and the second lens interlocking plate 214 in the optical axis direction will be described. As described above, the first lens piece 208 and the second lens piece 209 move in opposite directions along the optical axis direction at locations spaced apart in the left-right direction, and the first lens piece 208 and the second lens piece 209 The moving ranges in the optical axis direction are configured to overlap each other. Then, as the first and second lens pieces 208 and 209 move, the first and second lens connecting plates 213 and 214 connected to the first and second lens pieces 208 and 209 separate and approach along the optical axis direction. It is configured to move in the direction of Therefore, the first and second lens pieces 208 and 209
The first and second lens connecting plates 213 and 214 are compared with the case where the moving ranges in the optical axis direction do not overlap each other.
It is possible to reduce the space in the optical axis direction necessary for moving the camera, and to achieve the effect of enabling downsizing of the binoculars.

As shown in FIGS. 10 and 18, the frame 101 accommodates the focus adjustment ring 202 and supports the focus adjustment ring 202 rotatably and immovably in the axial direction. Housing 101G and zoom adjustment ring 2
04 that accommodates the zoom adjustment ring 204 so as to be rotatable and immovable in the axial direction.
1H are formed at intervals in the axial direction. First
The accommodation portion 101G includes a front wall portion 101G1 and a rear wall portion 1
01G2, the second accommodating portion 101H is sandwiched between the wall portion 101G2 and the rear wall 101B of the frame 101.

According to the above configuration, if the zoom adjustment ring 204 is rotated without rotating the focus adjustment ring 202, the main shaft 201 fixed to the zoom adjustment ring 204 is rotated.
Then, the cam ring 207 fixed to the front end of the main shaft 201 is rotated inside the cam frame 210. Thereby, the first and second cam grooves 207 formed on the outer peripheral surface of the cam ring 207 are formed.
D and 207E rotate with respect to the cam frame 210. Then, the first lens frame 20 engaged with each ball 210B
8 and the second lens piece 209 are linked with the shafts 211 and 21 in association with the rotation of the first and second cam grooves 207D and 207E, respectively.
2 and is moved along the axial direction of the main shaft 201. At this time, the first lens frame 208 and the second lens frame 2
09 moves in the axial direction, that is, in the opposite direction along the optical axis direction, as described above.

On the other hand, if the focus adjustment ring 202 is rotated without rotating the zoom adjustment ring 204, the main shaft 201 is not rotated, and only the rolling wheel 204 is rotated. Then, the ball 203 engaged with the main body 202A of the focusing ring 202
Is not moved in the axial direction of the main shaft 201,
In the direction around the axis while being engaged with the guide groove 206A1. Thus, the moving shaft 206 and the cam frame 210 fixed integrally thereto are moved inside the frame 101 along the axial direction of the main shaft 201. As described above, the guide groove 206A1 has the first groove 20 having a wide pitch.
6A11 and a second groove 206A12 connected to the first groove 206A11 and having a narrow pitch. Therefore, when the ball 204B moves in the range of the first groove 206A21 and when the ball 204B moves in the range of the second groove 206A12, the moving shaft 206 and the cam for the same rotation angle of the focus adjustment ring 202 are moved. The moving amount of the frame 210 is
The former is larger than the latter. this is,
In the former range, a part of the mirror body is quickly collapsed, and in the latter range, the distance between the eyepiece and the objective lens, that is, the focus is finely adjusted.

Next, the configuration of the right mirror 300 and the left mirror 400 will be described. The right mirror 300 and the left mirror 400
Are different from each other mainly in that they are symmetrical in shape, and are often functionally the same. Accordingly, in the following description, the components on the right lens body side will be described except for the parts having different functions in the left and right, and will also serve as the description of the components on the left lens body side. Also, as will be described below, the parts of the right mirror are numbered 300s, and the parts of the left mirror are numbered 400s, and correspond to each other among the parts constituting the right and left mirrors. The last two digits of the parts and alphabetic characters are assigned in common.

As shown in FIG. 5, the right mirror 300
Are a right frame 301, a right frame lid 302, a right moving body 303, a right eyepiece 304, a right objective section 305, a prism section 306,
A lens unit 307, a second lens unit 308, an eyepiece unit 309,
It is provided with a right exterior part 310 and the like. First, the structure of the right mirror 300 will be schematically described.
Right frame lid 302 attached to right frame 301, right objective unit 30
5. The right exterior part 310 is provided with the right interlocking plate 109 (FIG. 7).
), And is configured to be movable in the left-right direction together with the right interlocking plate 109.

The right moving body 303 is provided so as to be slidable in the front-rear direction with respect to the right frame 301. A prism unit 306 is attached to the front of the right moving body 303,
A right eyepiece 304 is attached to the rear of the right moving body 303,
An eyepiece 309 is attached to the rear of the right eyepiece tube 304. Further, a first lens unit 307 and a second lens unit 308 are provided between the right moving body 304 and the right eyepiece 304 so as to be slidable in the front-rear direction. That is, of the objective unit 305, the prism unit 306, the first lens unit 307, the second lens unit 308, and the eyepiece unit 309 that constitute the right telescope optical system, the objective unit 305 is attached to the right frame 301, The prism unit 306, the first lens unit 307, the second lens unit 308, and the eyepiece unit 309 are attached to the right moving body 303. Therefore, when the right moving body 303 slides in the front-rear direction with respect to the right frame 301, the objective section 305, the prism section 306, and the first lens section 30 are moved.
7, the distance between the second lens unit 308 and the eyepiece unit 309,
That is, the focal length is adjusted.
That is, the right moving body 304 and the right eyepiece 304 constitute a lens holding unit for holding the objective lens or the eyepiece in the present invention, and similarly, the left moving body 404 and the left eyepiece 404 described later use the same in the present invention. A lens holding unit is configured. In addition, first and second lenses 307B and 308C, which will be described later, and first and second lenses 407B and 408C, which constitute the eyepiece, are respectively attached to the holding plate 215 and the mirror connecting shaft 216 via these lens holding portions. It will be connected.

Next, the structure of the right lens body 300 will be described in more detail with reference to FIG. 8, and FIGS. The right frame 301 is provided with a holding portion 301B for holding the rear portion of the right guide shaft 301A at a middle position in the height direction on the right side of the rear portion, and the right frame 301 is attached to the right interlocking plate 109 below the holding portion 301B. Screw hole 301 into which the screw to be attached is screwed
C is provided (see arrow B). The attachment of the right frame 301 to the right interlocking plate 109 will be described in detail with reference to FIG. The screws 820, 820 are the long holes 1 of the support plate 102.
02H1, 102H2 and screw insertion hole 1 of right interlocking plate 109
A screw hole (not shown) provided at the rear of the right frame 301 and a screw hole (not shown) of a frame lid 302 described later are screwed through 09C1 and 109C2. At this time, the heads of the screws 820, 820 are configured to be able to move in the left-right direction without interfering with the edges of the long holes while being positioned in the long holes 102H1, 102H2 of the support plate 102. ing. The screws 821 and 821 are screwed into front and rear screw holes (the front screw holes correspond to the screw holes 301C) provided in the right frame 301 via the screw insertion holes 109D1 and 109D2 of the right moving body 109. . At this time, the heads of the screws 821, 821 can move to positions within the notches 102J1, 102J2 of the support plate 102, and can move in the left-right direction without interfering with the edges of these notches. It is configured so that Thus, the screws 820, 821
Thereby, the right frame 301 is attached to the right interlocking plate 109.

Incidentally, a left frame 401 described later (see FIG. 15).
The attachment to the left interlocking plate 110 is the same as described above, and will be described here. That is, the screws 822 and 822 are screw holes (not shown) provided at the rear part of the left frame 401 to be described later through the long holes 102I1 and 102I2 of the support plate 102 and the screw insertion holes 110C1 and 110C2 of the left interlocking plate 110. Screwed into a screw hole (not shown) of the frame lid 402. At this time, the heads of the screws 822, 822 are located in the long holes 102I1, 102I2 of the support plate 102, and can be moved in the left-right direction without interfering with the edges of these long holes. Have been. Also, screws 823, 823
Are screw insertion holes 110D1 and 110D2 of the left interlocking plate 110.
Front and rear screw holes (not shown) provided in left frame 401 through
Screwed. At this time, the heads of the screws 823, 823 can move to positions within the notches 102K1, 102K2 of the support plate 102, and can move in the left-right direction without interfering with the edges of these notches. It is configured so that Thus, the left frame 401 is attached to the left interlocking plate 110 by the screws 822 and 823.

Returning to the description of the configuration of the right mirror 300, FIG. Right frame 3
01 is provided with a holding portion 301E for holding the rear portion of the left guide shaft 301D at a middle position in the height direction on the rear left portion (see arrow A). A screw hole 301F is provided at an intermediate position in the height direction of the right wall portion near the front portion of the right frame 301, and between the head of the screw 814 screwed into the screw hole 301F and the right wall portion. The guide shaft 301A is held by the front portion of the guide shaft 301A being sandwiched between them.

A screw hole 301G is provided at the upper right corner of the front wall of the right frame 301. Then, the right frame cover 30
The screw 814 is inserted into the screw hole 3 through the screw insertion hole 302A of the second screw.
The right frame lid 302 is attached to the front part of the right frame 301 by screwing it to 01G. The right frame lid 302 holds the front part of the guide shaft 301D. Further, a screw hole 302B is provided in a front portion of the right frame lid 302, and a screw 815 is provided in the front wall 3 of the right exterior 310A.
The front portion of the right frame 301 and the front wall 310A of the right exterior 310A are screwed into the screw holes 302B through the screw insertion holes 310A22 provided in the 10A2, and the right frame lid 302 is used.
2 is fixed.

Further, a screw 816 is provided in the screw insertion hole 310A41 provided in the right side wall 310A4 of the right exterior 310A.
The right side of the right frame 301 and the right side wall 310A4 of the right exterior 310A are fixed by being screwed into a position above the screw hole 301F of the right frame 301 via the. Also,
A screw hole 301H is provided in a rear left wall portion of the right frame 301, and a screw 817 is provided in the rear wall 310A of the right exterior 310A.
By screwing into the screw hole 301H via the screw insertion hole 310A32 provided in A3, the rear part of the right frame 301 and the rear wall 310A3 of the right exterior 310A are fixed. Further, a hole 301J facing rearward is provided in a rear left wall portion of the right frame 301.
The fitting projection 310C2 of the right rear cover 310C described below
Are fitted.

The right exterior 310 includes a right exterior 310A, a right front cover 310B, a right rear cover 310C, and the like. The right exterior 310A includes a bottom wall 310A1 and a bottom wall 3
Front wall 3 upright from front and rear and right edge of 10A
10A2, a rear wall 310A3, and a right wall 310A4, and an upper wall 310A5 connecting upper portions of the front wall 310A2, the rear wall 310A3, and the right wall 310A4.

The front wall 310A2 is formed with an opening 310A21 for allowing an objective lens 305C described later to face outward, and the rear wall 310A3 is provided with a third lens 309C of the eyepiece described later facing outward. Opening 3
10A31 are formed. The focus adjustment ring 202 described above is provided at a position near the rear of the right edge of the upper wall 310A5.
A concave notch 310A51 for making the zoom adjustment ring 204 face outward is formed. Right front cover 310B
Is attached to the front side of the front wall 310A2 by a double-sided tape 310D with the opening 310B1 aligned with the opening 310A21.

Further, the right rear cover 310C is
The rear wall 310A3 is attached to the rear side of the rear wall 310A3 with the double-sided tape 310E with C1 aligned with the opening 310A31. As shown in FIGS. 5 and 12,
The rear wall 310A3 of the right exterior 310A is provided with a through hole 310A33 at a position corresponding to the hole 301J of the right frame 301, and the fitting projection 310C2 of the right rear cover 310C is provided.
Is the hole 3 of the right frame 310 through the through hole 310A33.
By being fitted with 01J, the right rear cover 310C is positioned with respect to the right frame 310 and the right exterior 310A. Further, a semicircular recess 310A11 is formed at a position near the left edge of the bottom wall 310A1 of the right exterior 310A. The recess 310A11 is provided so that the dioptric makeup ring 106 and the bottom wall 310A1 do not interfere with each other.

The objective section 305 includes a right objective frame 305A, an objective holding ring 305B, an objective lens 305C, and the like. The right objective frame 305A is a cylindrical wall-shaped main body 305A.
1, a first holding portion 305A2 provided on the right side of the main body 305A1, and a second holding portion 305A3 extending rearward from the left side of the main body 305A1 (corresponding to the left guide shaft holding portion in the claims) And an engaging portion 305A4 extending leftward from the front of the second holding portion 305A3. The inner peripheral portion of the main body 305A1 is configured to hold the outer peripheral edge of the objective lens 305C, and a female screw formed on the inner peripheral portion is screwed with a male screw formed on the outer peripheral portion of the objective holding ring 305B. Objective lens 305C with body 3
05A1 and the objective holding ring 305B.

The first holding portion 305A2 is provided movably in the axial direction of the guide shaft 301A while holding the guide shaft 301A. A bearing hole 305A31 is provided in the second holding portion 305A3 with the axial center thereof oriented in the front-rear direction, and the guide shaft 301D is inserted into the bearing hole 305A31. The second holding portion 305A3 is
01D is provided so as to be movable in the axial direction of the guide shaft 301D while being held. Therefore, the objective frame 305A
Is configured to be movable in the front-rear direction along the guide shafts 301A and 301D. Therefore, the objective lens 305C held in the right objective frame 305A has a position in the optical axis direction with respect to the right frame 301,
It is configured so that it can be set at any position on the axis of 01D.

The engaging portion 305A4 has a rectangular plate shape, and the engaging wall portion 305A4 extends downward from its front edge and rear edge.
1 are respectively standing. These two engagement walls 3
05A41 are provided extending in the left-right direction in parallel with each other at intervals. And these 2
The diopter difference eccentric seat 107 is provided between the two engagement wall portions 305A41.
When the diopter difference eccentric seat 107 is rotated, the diopter difference eccentric seat 1 is eccentrically rotated.
Each engagement wall portion 305A41 comes into contact with the outer peripheral surface of the reference numeral 07 and is moved in the front-rear direction. That is, when the diopter difference eccentric seat 107 is rotated, the right objective frame 305A is integrated with the guide shafts 301A and 301D.
It is designed to be moved back and forth along the 1D axis direction, that is, the optical axis direction.

The right moving body 303 has a rectangular bottom wall 303A.
And a rear wall 303B standing upright from the rear edge of the bottom wall 303A.
And a side wall 303C rising from the left edge of the bottom wall 303A.
And An engaging portion 303A extending in the left-right direction is provided substantially at the center of the left edge of the bottom wall 303A in the front-rear direction.
1 is provided, and the engaging portion 303A1 is movably engaged in the axial direction with respect to the lens body interlocking shaft 216 described above. The rear wall 303B has a circular hole 303B1 at the center thereof. Bottom wall 303
A is provided at the right edge of the bearing portion 3 through which the guide shaft 301A is inserted.
03D is provided, and a guide shaft 3 is provided below the side wall 303B.
A bearing portion 303E into which 01D is inserted is provided.
Therefore, the right moving body 303 includes the bearings 303D and 30D.
The guide shaft 3E is held by the guide shafts 301A and 301D so as to be movable in the front-rear direction.

The prism section 306 includes a holder 306A, an intermediate plate 306B, a holder cover 306C, a fine moving plate 306D, a first prism 306E, and a second prism (dach prism) 3.
06F and the like. The holder 306A includes an upper wall 306A1 and a bottom wall 306A2 that hold the upper and lower surfaces of the first prism 306E and the second prism 306F.
And a rectangular rear wall 306A3 connecting the rear edges of the upper wall 306A1 and the bottom wall 306A2.

First Prism 30 Constituting Upright Prism
6E and the second prism 306F are configured so that light rays pass in this order, and an intermediate plate 3 is provided between the exit surface of the first prism 306E and the entrance surface of the second prism 306F.
06B is arranged, and the upper wall 306 of the holder 306A is placed.
A1 and the bottom wall 306A2 are adhered and fixed. The holder lid 306C is attached to the upper wall 306 of the holder 306A.
The first prism 306E is composed of a front wall 306C1 and right and left side walls 306C2, 306C3 standing rearward from left and right edges of the front wall 306C1 so as to connect a front edge and a side edge of the bottom wall 306A2. An opening 306C11 through which light passes is provided in the front wall 306C1 facing the light incident surface.

The rear wall 306A3 of the holder 306A also has a second
An opening through which light emitted from the prism 306F passes is provided. A fine moving plate 306 is provided between the rear surface of the rear wall 306A3 of the holder 306A and the rear wall 303B of the moving body 303.
D is provided, and an opening 3 through which light passes is provided in the center thereof.
06D1 is provided. Rear wall 306 of holder 306A
In A3, screw holes 306A31 are formed at two places across the above-mentioned opening so as to face rearward. Then, two screws 815 are screwed through a spring washer 816 and a washer 817 into a screw insertion hole 303B2 formed in a rear wall 303B of the moving body 303 and a screw insertion hole 3 formed in a fine moving plate 306D.
06D2 through the rear wall 306A3 of the holder 306A.
The holder 306 </ b> A is integrally fixed to the moving body 303 by being screwed into the screw hole at the location.

Further, the protruding pieces 303B extend rearward from the upper edge, the left edge, and the lower edge of the rear wall 303B of the moving body 303.
The protrusion 303B3 has a screw hole 303B31 formed in the thickness direction thereof. The right eyepiece 304 includes a bottom wall 304A and a right edge of the bottom wall 304A.
The right side wall 304B, the left side wall 304C, and the rear wall 304D which are respectively erected from the left edge and the rear edge.
B, a left wall 304C, and an upper wall 304E connecting the upper portions of the rear wall 304D. The front edge portions of the bottom wall 304A, the right wall 304B, the left wall 304C, and the top wall 304E are configured such that the rear wall 303B of the moving body 303 is fitted thereto, and the bottom wall 304A, the right wall 304B, and the top wall are formed. 304E
A screw insertion hole 304F is provided at a position near the front edge of each. Then, the three screws 818 are screwed into the screw holes 303B31 formed in the respective projecting pieces 303B3 of the rear wall 303B via the respective screw insertion holes 304F, so that the rear wall 303B of the moving body 303 is fixed to the right eyepiece tube 304. It is supposed to be. Therefore, the right eyepiece 304 and the prism unit 306 are integrally fixed to the moving body 303, and the right eyepiece 304, the prism unit 306, and the moving body 303 are guided with respect to the right frame 301 and the objective unit 305. It is provided movably in the optical axis direction along the axes 301A and 301D.

Between the rear surface of the rear wall 303B of the moving body 303 and the front surface of the rear wall 304D of the right eyepiece 304, two parallel guide shafts 311 extend in the front-rear direction, that is, along the optical axis direction. It is provided in an extended state. The first lens unit 307 includes the first lens frame 307A and the first lens 3
07B. The first lens frame 307A is
A cylindrical wall-shaped main body 307A1, an engagement arm 307A2 extending forward from a lower edge of the main body 307A1, and a main body 3
07A1 is composed of bearing arms 307A3 and 307A4 extending rearward from the right edge and the left edge, respectively.

The outer periphery of the first lens 307B is held on the inner periphery of the main body 307A1 of the first lens frame 307A. A portion of the engagement arm portion 307A2 facing the support plate 101,
That is, the engagement protrusion 307 that engages with the concave groove 213D provided in the first arm 213B on the right side of the first lens interlocking plate 213 is provided at the lower end of the engagement arm 307A2.
A21 is provided. The engagement projection 307A21 is configured to be immovable in the front-rear direction while being engaged with the concave groove 213D, and to be movable in the left-right direction (the length direction of the first arm 213B). . That is, the first lens interlocking plate 213 and the first lens 307B are connected to the first lens frame 3
07A. Bearing holes 307A31 and 307A32 through which the guide shaft 311 is inserted are provided before and after the bearing arm 307A3 of the main body 307A1.
The bearing arm 307A4 is provided with a bearing hole 307A41 through which the guide shaft 311 is inserted. Therefore, the main body 307A1 is held movably in the front-rear direction with respect to each guide shaft 311 by three places of bearing holes 307A31, 307A32, and 307A41 through which each guide shaft 311 is inserted.

The second lens section 308 is provided for the second lens frame 30.
8A, second lens press ring 308B, and second lens 308C
It is composed of The second lens frame 308A includes a cylindrical wall-shaped main body 308A1, an engagement arm 308A2 extending forward from a lower edge of the main body 308A1, and a main body 308A.
Bearing part 308A3 provided on the right edge of A1;
08A1 and a bearing portion 308A4 provided on the left edge portion. Main body 308A of second lens frame 308A
The inner peripheral portion of the first lens 308C is configured to hold the outer peripheral edge of the second lens 308C.
The second lens 308C is held by the main body 308A1 and the second lens press ring 308B by screwing a male screw formed on the outer peripheral portion of the lens press ring 308B.

At the portion of the engagement arm 308A2 facing the support plate 101, that is, at the lower end of the engagement arm 308A2, a recess provided on the right second arm 214B of the second lens interlocking plate 214 is provided. An engagement projection 308A21 that engages with the groove 214D is provided. Engagement projection 308A
Reference numeral 21 is configured to be immovable in the front-rear direction while being engaged with the concave groove 214D, and to be movable in the left-right direction (the length direction of the second arm portion 214B). Body 3
A bearing hole 308A31 through which the guide shaft 311 is inserted is provided in the bearing portion 308A3 of 08A1. The bearing 308A4 has a bearing hole 30 through which the guide shaft 311 is inserted.
8A41 and 308A42 are provided at an interval in front and rear. Therefore, the main body 308A1 is connected to each guide shaft 31.
1 through which the bearings 308A31, 308A41, 3
08A42 is held movably in the front-rear direction with respect to each guide shaft 311.

The eyepiece 309 includes an eyepiece frame 309A,
It comprises an eyepiece pressing ring 309B, a third lens 309C, and an eyepiece 309D. Eyepiece frame 309A
Is configured to hold an outer peripheral edge of the third lens 309C, and a female screw 309A formed on the inner peripheral portion is formed.
1 is screwed into a male screw 309B1 formed on the outer peripheral portion of the eyepiece pressing ring 309B to thereby form the third lens 309C.
Is held by an eyepiece frame 309A and an eyepiece holding ring 309B. And right eyepiece 3
A hole that penetrates through the rear wall 304D in the thickness direction of the rear wall 304D is formed in the rear wall 304D, and a female screw is formed on an inner peripheral portion of the hole to provide a mounting portion 304D1. And
An eyepiece frame 309 is attached to the female screw of the mounting portion 304D1.
The male screw 309A2 formed on the outer peripheral portion of A is screwed together, so that the eyepiece frame 309A is attached to the mounting portion 304D1.

An escape groove 304 is provided on the upper surface of the bottom wall 304A of the right eyepiece tube 304 to allow the rearward movement of the engagement arm 307A2 of the first lens frame 307A in the front-rear direction.
A1 is formed extending in the front-rear direction. Further, a clearance groove 304A2 is formed on the left side of the clearance groove 304A1 so as to extend in the front-rear direction to allow the movement of the portion of the second arm 308A2 near the rear in the front-rear direction.

Further, a portion of the first lens frame 307A near the front of the engagement arm 307A2 and the second lens frame 308A
The portion from the front of the engaging arm portion 308A2 extends forward from the front edge of the bottom wall 304A of the right eyepiece 304. Then, on the lower surface of the bottom wall 303A of the moving body 303,
A guide groove 303A2 (FIG. 2) for guiding the forward portion of the engagement arm 307A2 of the first lens frame 307A in the front-rear direction.
2 to 25) extending in the front-rear direction, and the engaging arm 308A2 of the second lens frame 308A.
Guide groove 303A that guides the forward portion of
3 (see FIGS. 22 to 25) is formed extending in the front-rear direction.

Therefore, the engagement arm 307A2 of the first lens frame 307A and the engagement arm 308A2 of the second lens frame 308A are held by the moving body 303 and the right eyepiece 304 so as to be movable in the front-rear direction. When the first lens frame 307A and the second lens frame 308A move in a direction approaching or away from each other, the objective lens 3
05C, the magnification of a telescope optical system including the prism unit 306, the first lens 307, the second lens 308, and the third lens 309 is changed. That is, in this telescope optical system, the objective lens is constituted by the objective lens 305C, and the eyepieces are the first lens 307, the second lens 308, and the third lens 30.
9. Then, the magnification of the telescope optical system is changed by moving the first lens 307 and the second lens 308 of the eyepiece in the direction of coming and going in the optical axis direction.

Next, a description will be given of the left objective frame 405A having a different configuration from the components forming the right mirror 300 among the components forming the left mirror 400. As shown in FIG. 16, the left objective frame 405A has a cylindrical wall-shaped main body 405A.
A1; a first holding portion 405A2 provided on the left side of the main body 305A1; and a second holding portion 305A3 extending rearward from the right side of the main body 405A1. The inner peripheral portion of the main body 405A1 is configured to hold the outer peripheral portion of the objective lens 405C, and a female screw formed on the inner peripheral portion is screwed with a male screw formed on the outer peripheral portion of the objective holding ring 405B. Connect the objective lens 405C to the main body 405A
1 and the objective holding ring 405B.

The first holding portion 405A2 is provided with a guide shaft 401A.
Is movably held in the axial direction. A bearing hole 405A31 is provided in the second holding portion 405A3 (corresponding to the right guide shaft holding portion in the claims) so that the axis thereof is oriented in the front-rear direction, and a guide shaft 401D is provided in the bearing hole 405A31. (Corresponding to the right guide shaft). The second holding portion 405A3 is configured to hold the guide shaft 401A movably in the axial direction thereof. For this reason, the object frame 405A is held movably in the front-rear direction along the guide shafts 401A and 401D. The right objective frame 405A is provided in the first holding unit 4
Guide shaft 301 by screw 819 screwed to
A is fixed to A.

Therefore, in the objective lens 405C held by the left objective frame 405A, the position in the optical axis direction with respect to the left frame 401 can be set to an arbitrary position along the axial direction of the guide shafts 401A and 401D. First holding unit 40
It is configured to be fixed at the set position by a screw 819 screwed into 5A2. That is, the left objective frame 405A is not provided with a configuration corresponding to the engaging portion 305A4 that engages with the diopter difference eccentric seat 107 in the right objective frame 305A. Therefore, the position of the objective lens 405C in the optical axis direction with respect to the left frame 401 is fixed by screwing the screw 819 to the first holding portion 405A2 in the manufacturing process, so that the user cannot adjust it after the product is completed. It has become. On the other hand, the position of the objective lens 305C of the right lens body 300 with respect to the right frame 301 in the optical axis direction is adjusted by turning the diopter makeup ring 106, that is, the diopter difference eccentric seat 107, as described above. It is configured to be able to.

Here, the positional relationship among the first lens interlocking plate 213, the second lens interlocking plate 214, the holding plate 215, and the mirror interlocking shaft 216 will be described. A first lens interlocking plate 213,
Second lens interlocking plate 214, holding plate 215, mirror interlocking shaft 2
Reference numeral 16 is provided in a gap formed between the support plate 102 and the respective telescope optical systems provided in the right mirror 300 and the left mirror 400 described above. Then, the first lens interlocking plate 213, the second lens interlocking plate 214, the holding plate 21
5. The movement of the mirror interlocking shaft 216 in the axial direction, that is, the movement of the left and right telescope optical systems in the optical axis direction is performed within the gap. In addition, the first lens interlocking plate 213 is connected to the first lens units 307 and 407, the second lens interlocking plate 214 is connected to the second lens units 308 and 408, the mirror interlocking shaft 216 and the right moving body 303 are left. The connection with the moving body 403 is also configured to be performed within the gap. More specifically, the first lens interlocking plate 21
3 and the second central portion 214A of the second lens interlocking plate 214 are formed between the lower portion of the frame 101 and the holding plate 2.
15, that is, a gap between the lower portion of the frame 101 and the support plate 101. The first arm 213B of the first lens interlocking plate 213 and the second arm 214B of the second lens interlocking plate 214 are disposed in a gap between the left and right telescope optical systems and the support plate 101. The holding plate 215 and the mirror interlocking shaft 216 are disposed in a gap between the lower portion of the frame 101 and the support plate 101 and the bottom cover 103. Therefore, the first and second lens interlocking plates 213, 213
14. By arranging the holding plate 215 and the mirror interlocking shaft 216 in the above gaps, it is possible to reduce the space in the vertical direction orthogonal to the optical axis direction of the binoculars, and to reduce the size of the binoculars. The effect can be achieved.

Next, the binoculars 10 constructed as described above
The operation when 00 is used will be described. First, as shown in FIGS. 1 and 2, the right eyepiece tube 30 with the right body 300 and the left body 400 of the binoculars 1000 closed.
It is assumed that the eyepiece 4 and the left eyepiece tube 404 are housed in the exterior, that is, in a collapsed state. The user supports the right mirror 300 with the right hand and the left mirror 400 with the left hand. At this time, the thumbs of the right and left hands touch the bottom wall lower surface of the right exterior and the left exterior,
The other fingers of the right hand and the left hand hold the upper surfaces of the upper walls of the right exterior and the left exterior, respectively, from below and above.

Here, since the focus adjustment ring 202 and the zoom adjustment ring 204 are disposed adjacent to the main shaft 201 provided on the center line in the left-right direction of the binoculars 1000, that is, on the same axis, the focus adjustment ring 202 and the zoom adjustment ring 204 When the focus adjustment ring 202 and the zoom adjustment ring 204 are rotated by any of the index finger or the middle finger of the left hand, there is an advantage that the rotation operation can be easily performed by either the right hand or the left hand. When the focus adjustment ring 202 is rotated in a predetermined direction by a finger,
Arm 20 extending in the axial direction integrally with main body 202A
2A1 is rotated, and the hole-shaped engaging portion 20 of the arm 202A1 is rotated.
The guide groove 2 in which the ball 203 engaged with 2A11 is formed in the first shaft portion 206A of the moving shaft 206 into a double thread shape.
It moves along 06A1. Convex portions 206C4, 2C2 provided on the right and left sides of the flange portion 206C of the moving shaft 206.
06C5 is the right wall 101C and the left wall 10 of the frame 101.
Guide groove 101C provided in 1D extending in the front-rear direction
11, 101D11. And each convex part 206C4, 206C5 is stepped part 101C12, 101
By contacting D12, the front position of the moving shaft 206 is regulated, and each of the protrusions 206C4 and 206C5
The rear position is regulated by contacting the rear wall portion 101G1. In the range in which the ball 203 moves along the first groove portion 206A11 having a large pitch, the moving amount of the moving shaft 206 is large with respect to the rotation amount of the focus adjustment ring 202, and the ball 203 has the second groove portion 206A12 having a small pitch.
Is smaller than the rotation amount of the focus adjustment ring 202 in the moving range.

A holding plate 215 is integrally attached to the moving shaft 206 to which the cam frame 210 is attached, and a moving body interlocking shaft 216 is integrally attached to the holding plate 215. Therefore, in conjunction with the movement of the moving shaft 206, the right moving body 306
Then, the left moving body 406 is moved backward. As a result, the right eyepiece tube 304 and the left eyepiece tube 404 protrude from behind the binoculars 1000. In this state, look at the eyepieces 309 and 409 with both eyes, and open the right mirror 300 and the left mirror 400 in the horizontal direction so that the right and left visual fields overlap and become one while looking at a distant object. Adjust the interpupillary distance with. As described above, the right exterior 310A and the left exterior 410A are
9 and the left interlocking plate 110. Therefore, the right mirror body 300 and the left mirror body 400 move in conjunction with the approaching direction or the separating direction along the left-right direction, and the same distance in the left-right direction with respect to the center of the binoculars 1000 in the left-right direction. Since it moves, the interpupillary distance can be easily adjusted. By applying a frictional force when the left interlocking plate 110 moves in the left-right direction, the operational feeling at the time of adjusting the interpupillary distance can be improved.

When adjusting the interpupillary distance, the first and second arms 213B and 214B of the first and second lens interlocking plates 213 and 214 are used.
The first lens frames 307A, 407A and the second lens frames 308A, 408A engaged with the concave grooves 213D, 214D of
Are also moved in the left and right directions. At this time, the mirror 30
0, 400, that is, the left and right telescope optical systems move symmetrically in the left-right direction about the center of the support plate 102 in the left-right direction. Therefore, as shown in FIG. 20, the engagement projections 3 of the first lens frames 307A and 407A are moved from the guided portions 213E and 213F of the first arm 213B.
First arm 2 to which 07A21 and 407A21 are connected
The distance to the location of the concave groove 213D of 13B becomes equal on the left and right.

Similarly, as shown in FIG. 21, the engagement projections 308A of the second lens frames 308A and 408A are moved from the guided portions 214E and 214F of the second arm 214B.
21, 408A21 is connected to the second arm 214B
The distance to the location of the concave groove 214D becomes equal on the left and right.
Therefore, during the later-described magnification adjustment, the first lens frame 3
07A, 407A, and loads applied to the first and second arm portions 213B, 214B from the second lens frames 308A, 408A, that is, the guided portions 213E, 213F of the first arm portion 213B.
And the load applied to the guide portions 101C2 and 101D2 of the frame 101 and the guided portions 214E and
From 214F, guide portions 101C2, 10C of frame 101
Since the load applied to 1D2 is equal on the left and right, the first and second lens connecting plates 213 and 214 can be stably moved in the optical axis direction.

Note that the focus adjustment is performed by rotating the focus adjustment ring 202. That is, the focus adjustment ring 202
Is rotated to move the right moving body 303 fixed integrally.
The right eyepiece 304 and the eyepiece 309 are moved in the optical axis direction with respect to the right objective frame 305A. That is, the first lens 30
Focus adjustment is performed by moving the lens 7B, the second lens 308C, and the third lens 309C toward and away from the objective lens 305C. It goes without saying that the same focus adjustment operation is performed simultaneously in the left mirror 400 as well.

The magnification adjustment is performed by rotating the zoom adjustment ring 204. That is, the zoom adjustment ring 2
04, the main shaft 201 is rotated and the cam ring 2 is rotated.
07 rotates with respect to the cam frame 210. Then, the first lens frame 20 engaged with the first cam groove 207D and the second cam groove 207E of the cam ring 207 via the ball 210B.
8. The second lens piece 209 is moved in the opposite direction. As a result, the first lens link plate 213 and the second lens link plate 214 attached to the first lens piece 208 and the second lens piece 209 are engaged with the first lens link plate 213 and the second lens link plate 214. First lens frame 307
A, the second lens frame 308A is the first lens frame 208,
In conjunction with the second lens piece 209, they are moved away from each other and approach each other.

FIG. 22 is a plan view of an optical adjustment unit showing a state in which the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to the low magnification side. FIG. It is a top view of the optical adjustment part which shows the state in which the plate was closest and the telescope optical system was adjusted to the high magnification side. FIG. 24 is a bottom view of the optical adjustment unit showing a state in which the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to the low magnification side. FIG. It is a bottom view of the optical adjustment part which shows the state which approached and the telescope optical system was adjusted to the high magnification side. As shown in FIGS. 22 and 24, the telescope optical system is adjusted to the widest side when the first and second lens interlocking plates are farthest apart. Conversely, FIGS. 23 and 25
As shown in (1), when the first and second lens interlocking plates come closest to each other, the telescope optical system is adjusted to the most telephoto side. Therefore, the first lens 307B and the second lens 30
8C are separated from each other and approach to each other so that the objective lens 305
C, the magnification of the telescope optical system including the prism unit 306, the first lens 307B, the second lens 308C, and the third lens 309C is reduced or enlarged. Left mirror 40
Of course, at 0, the zoom adjustment operation is simultaneously performed by the same configuration as that of the right mirror 300.

Next, the operation of diopter difference adjustment will be described. First, the third lens 409 of the left mirror 400 only with the left eye
The focus adjustment ring 202 is rotated except for C to adjust the focus so that a distant target is in focus. Next, the diopter makeup ring 106 is rotated with the right eye looking through the third lens 309C of the right lens body 300 so that the target is clearly seen. That is, the diopter makeup ring 106 is rotated to rotate the diopter difference eccentric seat 107, and the position of the objective lens 305 </ b> C with respect to the right frame 301 in the optical axis direction is adjusted to an arbitrary position. Adjustments can be made. If the users are the same, it is only necessary to adjust the focus once the diopter difference has been adjusted. The diopter makeup ring 106 is attached to the support plate 10.
Since it is located at a position closer to the front side on the center line in the left-right direction, it is possible to easily rotate the left or right hand with, for example, a thumb. Further, since the diopter makeup ring 106 is provided at a position near the front side on the center line of the support plate 102, the diopter makeup ring 106 is sufficiently separated from the position of the thumb in the state where the focus adjustment and the zoom adjustment are being operated. I have. Therefore, it is possible to prevent the diopter adjustment from going out of order due to careless contact of the thumb with the diopter makeup ring 106 or the like.

Next, the shapes of the frame and the mirror body will be described with reference to FIGS. 9, 10, and 22 to 25. On the right wall 101C of the frame 101, a guide shaft 301D that supports the right movable body 303 so as to be movable in the optical axis direction and a portion facing the second holding portion 305A3 of the right objective frame 305A through which the guide shaft 301D is inserted. The concave portion 101C3 having a concave shape toward the center of the frame 101 in the left-right direction is
It is formed extending along 01D. Similarly, on a left wall 101D of the frame 101, a guide shaft 401D for supporting the left moving body 403 so as to be movable in the optical axis direction, and a guide shaft 4
01D is inserted into the second holding section 40 of the left objective frame 405A.
5A3, a concave portion 101D3 having a concave shape toward the center of the frame 101 in the left-right direction is provided on the guide shaft 401.
It is formed extending along D. In addition, these guide shafts 3
The vertical position of 01D and 401D is the focus adjustment ring 202.
And a position lower than the vertical position of the axis of the zoom adjustment ring 204.

On the other hand, the second holding portions 305A3 and 405A3 facing the concave portions 101C3 and 101D3
01 has a convex shape with respect to the center in the left-right direction, and the concave portions 101C3 and 101D3 are
5A3 and 405A3 can be accommodated. When the right mirror 300 and the left mirror 400 of the binoculars 1000 are closed, the recesses 101C3 and 101D3 accommodate the second holding portions 305A3 and 405A3. For this reason, the second holding units 305A3 and 405A3 move the frame 10 with the right mirror 300 and the left mirror 400 closed.
It is possible to move to a position closer to the center of the frame 101 than the positions of the right wall 101C and the left wall 101D, and the distance between the right mirror 300 and the left mirror 400 in the left-right direction can be narrowed. Therefore, there is an advantage that the size in the left-right direction when the left and right mirrors of the binoculars are closed can be reduced.

In this embodiment, the optical adjustment unit 20
0, a main shaft 201, a focus adjustment ring 202, and a ball 2
03, zoom adjustment ring 204, moving shaft 206, cam ring 20
7, the first lens frame 208, the second lens frame 209, the cam frame 210, and the frame guide shafts 211 and 212 constitute a moving mechanism according to the claims.

[0100]

According to the present invention, a left and right telescope optical system includes a plurality of lenses, some of which are provided so as to be movable in the optical axis direction, and a left and right telescope optical system. Left and right mirror bodies each including, an interlocking member connected to the lens and provided integrally with the lens so as to be movable in the optical axis direction, and a moving mechanism for moving the interlocking member in the optical axis direction,
In a binocular provided with a frame disposed between left and right mirrors and a moving mechanism accommodated in an internal space thereof, an upper opening and a lower opening are respectively provided at an upper portion and a lower portion of the frame, and the moving mechanism includes The mechanism is configured so that it can be assembled into the internal space from the upper opening side of the frame in the assembled state, and the moving mechanism moves in the optical axis direction to the place facing the lower opening of the frame while being assembled in the internal space A connecting portion is provided so as to be able to be connected to the interlocking member, and the connecting portion and the interlocking member are connected through the lower opening. Therefore, the connection between the connecting portion of the moving mechanism and the lens interlocking member connected to the lens is performed at the lower portion of the frame. Therefore, by arranging the space for connecting the connecting portion and the interlocking member at the lower portion of the frame, the space at the lower portion of the frame can be effectively used, and the vertical size of the binoculars can be reduced. Also,
In the upper part of the frame, unlike the conventional case, a space for disposing the connecting portion and the interlocking member is not required, and only the operating member for operating the moving mechanism can be provided. Thereby, operability can be improved.

[Brief description of the drawings]

FIG. 1 is an external view showing a state in which a right lens unit and a left lens unit are closed and a right eyepiece and a left eyepiece are housed in an embodiment of the binoculars of the present invention, and FIG. , FIG. 1 (B)
FIG. 1A is a rear view showing a state of FIG. 1A viewed from the direction of arrow A1, and FIG. 1C is a side view showing a state of FIG. 1A viewed from the direction of arrow A2.

FIG. 2 is an external view of binoculars showing the same state as FIG.
2 (A) is a bottom view, and FIG. 2 (B) is an arrow A in FIG. 2 (A).
It is a rear view showing the state seen from three directions.

FIG. 3 is an external view showing a state in which a right lens unit and a left lens unit are opened and a right eyepiece tube and a left eyepiece tube are extended most in the embodiment of the binoculars of the present invention, and FIG. Plan view, FIG. 3
FIG. 3B is a front view showing the state of FIG. 3A viewed from the direction of arrow B1, FIG. 3C is a side view of FIG. 3A viewed from the direction of arrow B2, and FIG. FIG. 3 (A) is a side view as seen from the direction of arrow B3.

4 is an external view of binoculars showing the same state as in FIG. 3,
4A is a bottom view, and FIG. 4B is an arrow B in FIG.
FIG. 4C is a rear view showing a state viewed from four directions, and FIG.
It is a side view which shows the state which looked at (A) from arrow B5.

FIG. 5 is a partial sectional view showing a state in which a part of the binoculars is broken.

FIG. 6 is a sectional view taken along line XX of FIG. 5;

FIG. 7 is an exploded perspective view showing the entire configuration of the binoculars.

FIG. 8 is an exploded perspective view showing a part of the support portion.

FIG. 9 is an exploded perspective view showing a part of a support part and an optical adjustment part.

FIG. 10 is an exploded perspective view illustrating a configuration of an optical adjustment unit.

FIG. 11 is an exploded perspective view showing a configuration of a part of an optical adjustment unit and an upper plate.

FIG. 12 is an exploded perspective view mainly showing a configuration of a right exterior part of the right lens body.

FIG. 13 is an exploded perspective view mainly showing a configuration of a right moving body, a right objective section, and a prism section of the right mirror body.

FIG. 14 is an exploded perspective view mainly showing a configuration of a first lens unit, a second lens unit, and an eyepiece unit of the right lens body.

FIG. 15 is an exploded perspective view mainly showing a configuration of a left exterior part of the left mirror body.

FIG. 16 is an exploded perspective view mainly showing a configuration of a left movable body, a left objective section, and a prism section of the left mirror body.

FIG. 17 is an exploded perspective view mainly showing a configuration of a first lens unit, a second lens unit, and an eyepiece of the left lens unit.

18A and 18B are diagrams showing a configuration of a main body, wherein FIG. 18A is a plan view of the main body, FIG. 18B is a cross-sectional view showing a state where the main body is cut along a surface along a longitudinal direction, and FIG. (C) is a bottom view of the main body.

FIG. 19 is a cross-sectional view showing a state in which the main body is broken at a plane orthogonal to the longitudinal direction, and FIG.
FIG. 19B is a sectional view taken along line BB of FIG. 18B.

20A and 20B are diagrams illustrating a configuration of a first lens interlocking plate. FIG. 20A is a front view of the first interlocking plate, and FIG.
FIG. 20 (C) is a plan view of the first interlocking plate showing a state where 0 (A) is viewed from arrow B, and FIG. 20 (D) is FIG.
It is a side view which shows the state which looked at (B) from arrow D.

21A and 21B are diagrams showing a configuration of a second lens interlocking plate, wherein FIG. 21A is a front view of the second interlocking plate, and FIG.
21 (A) is a plan view of the second interlocking plate showing a state viewed from arrow B, and FIG. 21 (C) is a bottom view of the second interlocking plate showing a state of FIG. 21 (A) viewed from arrow C. .

FIG. 22 is a plan view of the optical adjustment unit showing a state in which the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to a lower magnification.

FIG. 23 is a plan view of the optical adjustment unit showing a state where the first and second lens interlocking plates are closest to each other and the telescope optical system has been adjusted to a higher magnification side.

FIG. 24 is a bottom view of the optical adjustment unit showing a state where the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to a lower magnification side.

FIG. 25 is a bottom view of the optical adjustment unit showing a state where the first and second lens interlocking plates are closest to each other and the telescope optical system has been adjusted to the high magnification side.

[Explanation of symbols]

 1000 binoculars 101 frame 102 support plate 207 cam ring 208 first lens frame 209 second lens frame 213 first lens interlocking plate 214 second lens interlocking plate 215 holding plate 216 mirror interlocking axis 300 right mirror 305C objective lens 307B first lens 308C Second lens 400 Left lens body 405C Objective lens 407B First lens 408C Second lens

Claims (10)

[Claims] 1. A left and right telescope optical system including a plurality of lenses, wherein a part of the plurality of lenses is provided so as to be movable in an optical axis direction thereof; Right and left mirror bodies, an interlocking member connected to a lens movably provided in the optical axis direction, and an interlocking member provided integrally with the lens and movably in the optical axis direction; Binoculars comprising: a moving mechanism for moving the moving mechanism in a direction; and a frame disposed between the left and right mirror bodies and accommodating the moving mechanism in an internal space thereof. An upper opening that opens the internal space upward; a lower opening that extends in the optical axis direction and opens the internal space downward at a lower portion of the frame; The mechanism is assembled In the state, it is configured to be able to be incorporated into the internal space from the upper opening side of the frame, and the moving mechanism is installed in the internal space in a position facing the lower opening of the frame in the optical axis direction. It has a connecting part movably provided and connected to the interlocking member, and is configured such that the connection between the connecting part and the interlocking member is performed through the lower opening. binoculars. 2. The lens according to claim 2, wherein the plurality of lenses include an objective lens and an eyepiece lens, the lens movably provided in the optical axis direction is the objective lens or the eyepiece lens, and the interlocking member is the objective lens or the eyepiece lens. A first interlocking member connected to the first interlocking member, the connecting portion having a first interlocking portion connected to the first interlocking member, and the moving mechanism moving the first interlocking portion to move the objective lens. 2. The binoculars according to claim 1, wherein the distance between the lens and the eyepiece is changed to adjust the focus of an image formed by the telescope optical system. 3. At least one of the objective lens and the eyepiece is configured to include first and second lenses, and the lenses provided movably in the optical axis direction are the first and second lenses. The interlocking member has second and third interlocking members connected to the first and second lenses, respectively, and the connecting portion is connected to the second and third interlocking members, respectively. Part, wherein the moving mechanism is the second, the third
By moving the connecting portion, the distance between the first and second lenses is changed to adjust the magnification of the image formed by the telescope optical system. The binoculars according to claim 2. 4. The moving mechanism has an operation member rotatably provided about an axis extending in a direction parallel to the optical axis direction, and the connecting portion is provided in accordance with rotation of the operation member. 4. The binoculars according to claim 1, wherein the binoculars are configured to be moved in the optical axis direction. 5. An upper plate is provided at an upper portion of the frame and extends in the optical axis direction and in a left-right direction orthogonal to the optical axis direction and closes an upper opening of the frame, and a window portion is provided on the upper plate. The binoculars according to claim 4, wherein the binoculars are formed so that a portion facing the operation member via the window portion is exposed to the outside. 6. A lower part of the frame is provided with a support plate extending in the optical axis direction and in a left-right direction orthogonal to the optical axis direction and facing a lower opening of the frame. The binoculars according to any one of claims 1 to 5, wherein the binoculars are configured to move symmetrically in the left-right direction about the center in the left-right direction of the frame. 7. A gap is formed between a lower portion of the left and right mirror bodies and the support plate, and the interlocking member extends in the gap from the center in the left and right direction of the frame in the left and right direction. 7. The binoculars according to claim 6, wherein the connection with a lens movably provided in the optical axis direction and the movement of the interlocking member in the optical axis direction are performed in the gap. . 8. The moving mechanism has an operation member rotatably provided about an axis extending in a direction parallel to the optical axis direction, and the connecting portion is provided in accordance with the rotation of the operation member. Is configured to be moved in the optical axis direction, and is configured such that the position of the axis of the operation member in the left-right direction coincides with the center position of the frame in the left-right direction. The binoculars according to any one of 1 to 7. 9. The apparatus according to claim 8, wherein the vertical position of the axis of the operation member is higher than the vertical position of the optical axis of the left and right telescope optical systems. Binoculars. 10. The frame includes a front wall and a rear wall arranged at an interval in the front and rear in the optical axis direction, a right wall connecting right edges of the front and rear walls, and the front wall. And a left wall connecting the left edge of the rear wall, and the upper opening and the lower opening are formed by the upper edge and the lower edge of the front wall, the rear wall, the right wall, and the left wall. The binoculars according to claim 1, wherein the binoculars are partitioned.