JP2001318319A - Binoculars - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide binoculars with which the positions of erecting prisms may be easily regulated and working efficiency may be enhanced. SOLUTION: A holder 306A which holds first and second prisms 306E and 306F constituting the erecting prisms movably in the vertical direction and immovably in the lateral direction with respect to a fine adjusting plate 306D. The fine adjusting plate 306D is supported movably in the lateral direction and not movably in the vertical direction with respect to a right moving body 303. A right eyepiece barrel 304 mounted at a rear wall 303B of the right moving body 303 is provided with a bearing means for turnably supporting the jig. The holder 306A is moved vertically with respect to the fine adjusting plate 306D and the fine adjusting plate 306D is moved vertically with respect to the right moving body 30 by turnably operating the jig supported by the bearing means, by which the positions of the erecting prisms are regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to binoculars having a telescope optical system using an erect prism to obtain an erect image.

[0002]

2. Description of the Related Art Left and right sides each having an objective lens, an erect prism for inverting an image formed by the objective lens to obtain an erect image, and an eyepiece for forming an erect image obtained by the erect prism. There are binoculars configured with a telescope optical system.
In the left and right telescope optical systems, the light of the telescope optical system of the erecting prism is set so that the image formed by the left and right eyepieces can be visually recognized by the left and right eyes, that is, within the field of view of the left and right eyes. The position in the vertical and horizontal directions with respect to the axis is adjusted so as to fall within a predetermined allowable range according to the magnification of the telescope optical system. Specifically, when assembling the holding member that holds the erecting prism to the mounting member, the position of the holding member with respect to the mounting member is adjusted so that the position of the erecting prism with respect to the optical axis is appropriate.

[0003]

In the conventional binoculars for adjusting the position of the erect prism with respect to the optical axis while assembling the holding member of the erect prism to the mounting member,
In order to adjust the position of the erecting prism, it is necessary that the holding member and the mounting member are in the state of being assembled. Therefore, if it is necessary to adjust the position of the erect prism for some reason in the process after the assembly of the holding member and the mounting member is completed, it is necessary to adjust the position of the holding member and the mounting member so that they can be adjusted. Parts need to be disassembled again, which is complicated and time-consuming. Also, if it is necessary to adjust the position of the erect prism in the completed binoculars, remove the exterior member of the binoculars, and then remove the parts so that the holding member and the mounting member can be adjusted as described above. It has to be disassembled, which also takes time. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide binoculars that can easily adjust the position of an erect prism and can increase work efficiency.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to an objective lens, an erect prism for inverting an image formed by the objective lens to obtain an erect image, and an erect image obtained by the erect prism. A right and left telescope optical system having an eyepiece for forming an image; and the erecting prism when two directions orthogonal to an optical axis of the telescope optical system and intersecting with each other are defined as first and second directions. And a prism holding mechanism that movably holds the erect prism in the first and second directions. The position of the erecting prism is adjusted by the rotation of an adjustment jig. A prism position adjusting mechanism for moving the adjusting jig in a direction, and bearing means for rotatably supporting the adjusting jig when rotating the adjusting jig. For this reason, the erecting prism that is movably held in the first and second directions by the prism holding mechanism by rotating the adjusting jig rotatably supported by the bearing means to link the prism position adjusting mechanism and the prism holding mechanism. Is adjusted. Therefore, it is possible to easily adjust the respective positions of the erect prism in the first and second directions with respect to the optical axis of the telescope optical system, and it is possible to improve work efficiency.

Further, the present invention can be configured such that one of the first and second directions is a vertical direction, and the other of the first and second directions is a horizontal direction. Also,
The present invention can be configured such that the first and second directions intersecting each other are orthogonal to each other. Further, in the present invention, the bearing means may include a plate-shaped portion having a thickness, a jig insertion hole that penetrates in a thickness direction of the plate-shaped portion, and allows the adjustment jig to be inserted, An arc portion bulging radially outward of the jig insertion hole from the center of the jig insertion hole at a part of the hole edge of the insertion hole, and having an arc portion having a radius equal to or smaller than the radius of the main body portion; When the adjusting jig is rotated, the adjusting jig is rotatably supported by the arc portion, and an eyepiece housing for housing the eyepiece is provided, and a plate-like portion of the bearing means is provided. Can be constituted by the portion of the eyepiece housing section.
Further, according to the present invention, the prism holding mechanism includes a prism holder, an intermediate member, and a holding member, and the prism holder is configured to hold the erect prism,
The intermediate member is configured to support the prism holder movably in the first direction and immovable in the second direction, and the holding member moves the intermediate member in the second direction. The prism holder and the intermediate member may be configured to be supported so as to be immovable in the first direction and to be fixed to the holding member. Further, in the present invention, the erecting prism may include a roof prism.

[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 an embodiment in which the zoom adjustment mechanism of the present invention is applied to binoculars. 1A is a plan view, FIG. 1B is a front view showing the state of FIG. 1A viewed from the direction of arrow A1,
FIG. 1C is a side view showing the state of FIG. 1A viewed from the direction of arrow A2. 2 is an external view of the binoculars showing the same state as FIG. 1, FIG. 2 (A) is a bottom view, and FIG. 2 (B) is a front view showing FIG. 2 (A) viewed from the direction of arrow A3. is there. 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. 3
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. FIG. 4 is an external view of the binoculars showing the same state as FIG. 3, FIG. 4 (A) is a bottom view, and FIG.
FIG. 4 is a rear view showing (A) viewed from the direction of arrow B4.
FIG. 4C is a side view showing the state when FIG. 4A is viewed from the 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 includes a focus adjustment ring 202 operated to adjust the focus of the left and right telescope optical systems, and a zoom adjustment ring 204 operated to adjust the magnification.

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. 18 is a plan view of the right moving body, FIG. 19 is a front view of the right moving body showing FIG. 18 viewed from the direction of arrow A1, and FIG. 20 is a right view of the right moving body showing FIG. FIG. 21 is a rear view of the right moving body in a state where FIG. 18 is viewed from the arrow A3. FIG. 22 is a bottom view showing the holder for holding the prism viewed from below, and FIG.
FIG. 2 is a front view of the holder showing a state of the holder 2 viewed from an arrow B1.
4 is a side view of the holder showing FIG. 22 as viewed from arrow B2, and FIG. 25 is a side view of the holder showing FIG. 22 as viewed from arrow B2. FIG. 26 is a rear view of the fine movement plate. 27 is a plan view of the left moving body, FIG. 28 is a front view of the left moving body showing a state of FIG. 27 viewed from the direction of arrow C1, and FIG.
FIG. 30 is a side view of the left moving body as viewed from arrow C2, and FIG. 30 is a rear view of the left moving body as viewed from arrow C3 in FIG.

FIG. 31 is a front view showing the right eyepiece viewed from the front, FIG. 32 is a rear view showing the right eyepiece viewed from the rear, FIG. 33 is a cross-sectional view taken along line D1D1 of FIG. 31, and FIG. Is a bottom view of the right eyepiece, and FIG. 35 is a sectional view taken along line D2D2 in FIG. FIG. 36 is a view showing the configuration of the object, and FIG.
36 is a rear view showing a state where the eye is viewed from the rear, FIG.
36B is a side view showing the state of FIG. 36A viewed from the direction of arrow E1, FIG. 36C is a front view showing the state where the eye is viewed from the front, and FIG. 4) is a bottom view showing a state viewed from the direction of arrow E2. 37 is a front view showing the eyepiece viewed from the front, FIG. 38 is a rear view showing the left eyepiece viewed from the back, and FIG. 39 is F1F in FIG.
40 is a bottom view of the left eyepiece, FIG. 41 is FIG.
7 is a sectional view taken along line F2F2 of FIG.

First, the configuration of the support section and the optical adjustment section will be described with reference to FIGS. The support portion 100
Main body 101, support plate 102, bottom cover 103, upper plate 104,
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 eccentric seat 107, which constitute a part of a diopter adjustment mechanism described later, are attached.

The support plate 102 is formed in the shape of a rectangular plate, and is disposed such 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 is provided on the front edge of the extension 109B of the right interlocking plate 109, and a rack 109B2 extending in the left-right direction is provided 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
0 is positioned on the support plate 102 with the extension 110B of the main body 101 interposed therebetween.
02 and is fixed between them.

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 forward and two projections 103D rearward 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, since the rack 109B2 of the right interlocking plate 109 and the rack 110B2 of the left interlocking plate 110 are engaged with the gear 105, the right interlocking plate 109 and the left interlocking plate 110 move in the left-right direction. It moves in conjunction with the approaching direction or the 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.

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 disc-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 diopter 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.

Also, a through hole 103G on the lower surface of the bottom lid 103
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 and 10, the main body 101 has a rectangular front wall 101A and a rear wall 101B, and a rectangular shape connecting the right and left sides of the front wall 101A and the rear wall 101B. And a right wall 101C and a left wall 101D. The top and bottom of the main body 101 are opened in a rectangular shape. The bottom of the main body 101 is attached to the support plate 102 while being covered by a bottom cover 103. That is, the four screws 806 are respectively screwed into the four screw holes 101E formed at the four corners at the bottom of the main body 101 through the four screw insertion holes 102G formed in the support plate 102.

The upper plate 104 has a rectangular plate shape substantially the same size as the support plate 102, and is attached so as to cover the upper part of the main body 101. That is, the four screws 807 are
The four screw holes 101 formed in the upper four corners of the main body 101 through the four screw insertion holes 104A formed in
F. A focus adjustment ring 2, which will be described later, is located at a position near the rear on the center line in the left-right direction of the upper plate 104.
02, openings 104B and 104C are provided to allow a part of the outer peripheral portion of the zoom adjustment ring 204 to face outward. A rectangular decorative plate 101 is provided on the front surface of the front wall 101A and the rear surface of the rear wall 101B of the main body 101, respectively.
I, the nameplate 101J is adhered.

According to the support portion 100 described above, the main body 10
1. The support plate 102, the bottom cover 103, and the upper plate 104 are integrally fixed. The right interlocking plate 109 and the left interlocking plate 110 are supported by the support plate 102 so as to be movable in the left-right direction.

The main shaft 201 has a mirror body 3 whose axis is described later.
The front end and the rear end of the main body 101 extend parallel to the optical axes 00 and 400, respectively.
A and bearing portions 101A provided on the rear wall 101B, respectively.
1, 101B1 (FIGS. 9 and 10).
reference). As will be described later, the focus adjustment ring 202 and the zoom adjustment ring 204 are provided so as to be rotatable about the axis of the main shaft 201. The diopter makeup ring 106 described above is
It 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 formed with a convex ridge 207B formed in a hole 207A of a cam ring 207 described later.
To be fitted.

The zoom adjustment ring 204 includes 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 composed of a cylindrical body having a cylindrical wall 207C centered on the axis of the main shaft 201, and a cylindrical outer peripheral surface 207C is provided outside the wall 207C.
1 is formed. Then, the wall portion 20 of the cam ring 207
An annular wall portion 207A is provided on one side of the central axis direction of 7C. The hole 207A1 provided through the center of the wall 207A is provided with the above-described groove 20 of the main shaft 201.
1A is formed along the central axis, and can be moved along the main axis 201 with the main axis 201 inserted through the hole 207A1, and cannot rotate in the circumferential direction of the main axis 201. Are supported by the main shaft 201. That is, the cam ring 207 is attached to the main shaft 201 so as not to rotate in the axial direction of the main shaft 201.

Further, bearing portions 207F are provided so as to protrude toward the central axis from two symmetrical positions with respect to the central axis, of the other edge of the wall 207C in the central axis direction.
The bearing portion 207F is formed in an arc shape corresponding to the outer periphery of a second shaft portion 206B of the moving shaft 206 described later. The bearing 207F is rotatably supported with respect to the second shaft 206B of the moving shaft 206.

On the outer peripheral surface 207C1 of the cam ring 207, 2
One first cam groove 207D and two second cam grooves 207E are formed. The two first cam grooves 207D are formed so as to have the same shape, and the two second cam grooves 207E are also formed so as to have the same shape.

The two first cam grooves 207D and the two second cam grooves 207E are provided on the outer peripheral surface 207C of the cam ring 207 at intervals in the circumferential direction. That is, the two first cam grooves 207D and the two second cam grooves 207E are provided in the same area in the direction around the central axis of the cam ring 207, that is, the axis of the main shaft 201. Further, the two first cam grooves 207D and the two second cam grooves 207E extend in a direction crossing each other on the outer peripheral surface 207C1 of the cam ring 207.

The moving shaft 206 is formed between a cylindrical first shaft 206A provided on the rear side, a second shaft 206B provided on the front side, and the first and second shafts. 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 wider pitch in the axial direction of the first shaft portion 206A in order from the front, and a first groove portion 206A.
A11 and a second groove 206A12 having a narrow pitch in the axial direction of the first shaft 206A. The focus adjustment ring 202 includes an annular main body 202A and a main body 202.
A, and a rubber ring 202B attached to the outer peripheral portion. Also, a focus adjustment ring 202 and a zoom adjustment ring 204
, That is, the outer diameters of the rubber rings 202B and 204B have substantially the same dimensions. Body 202A
On the inner peripheral surface 202A1, a holding portion 202A11 for holding the two spheres 203 engaged with the guide groove 206A1 so as to be rotatable and immovable around the axis is provided at a position facing each other about the axis. Have been.

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 supported by the inner surface 101C1 of the right wall 101C of the main body 101 and the inner surface 101D1 of the left wall 101D so as to be movable in the axial direction (front-rear direction) of the main shaft 201 and non-rotatably around the axis.

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, 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. Guide grooves 101C11 and 101D11 are formed at the upper edge of the inner surface 101C1 of the right wall 101C of the main body 101 and the inner surface 101D1 of the left wall 101D so as to extend in the optical axis direction. A convex portion 206C4 of the moving shaft 206,
206C5 is a guide groove 101C1 of the main body 101, respectively.
1, 101D11, the movable shaft 206 and the cam frame 210 are movably supported in the axial direction while being engaged with the 101D11, so that the movable shaft 206 and the cam frame 210 can be moved in the axial direction (front-back direction) of the main shaft 201 and around the axis. It is supported so that it cannot rotate. Then, each of the convex portions 206C1, 206C
2 comes into contact with the steps 101C12 and 101D12 provided on the front side of the guide grooves 101C11 and 101D11, whereby the front position of the moving shaft 206 is regulated.
When C4 and 206C5 abut against the wall 101G1 behind the first housing 101G of the main body 101, the rear position is regulated. Hole 207A of cam ring 207
The cam shaft 207 is rotatably supported by the second shaft portion 206B of the moving shaft 206. The cam frame 210 holds the cam ring 207 in the flange 206 </ b> C of the moving shaft 206.
The cam frame 210 and the moving shaft 206 are integrally fixed by two screws 809.

The lower edge of the right wall 101C and the lower edge of the left wall 101D of the main body 101 are respectively provided with guides formed of ridges extending in the axial direction, that is, in parallel with the optical axis direction. The parts are provided at intervals in the left-right direction. 9 and 10 show the guide portion 10 of the left wall 101D.
Only 1D2 is shown, and the guide section of the right wall 101C is not shown because it is hidden. Below, these two
The two guides are collectively referred to as 101D2. These two guide portions 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 two spheres 210 engaged with the first cam groove 207D
It has a holding portion (spherical concave portion) for holding B in a rotatable manner with the first cam groove 207D. On the other hand, the second lens piece 209 has a holding portion that holds the two spheres 210B engaged with the second cam groove 207E of the cam ring 207 so as to be able to rotate between the two spheres 210B and the second cam groove 207E. 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 located at the 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. This will be described. Two first cam grooves 207D and two second cam grooves 207E are formed on the outer peripheral surface 207C of the cam ring 207.
The first lens piece 208 and the second lens piece 209 extend in the direction intersecting with each other at 1.
They are moved in opposite directions along the axial direction, that is, in directions of coming and going. That is, when the cam ring 207 is rotated in a predetermined direction about the axis, the first lens
And the second lens piece 209 are moved in a direction approaching each other, and when the cam ring 207 is rotated in a direction opposite to a predetermined direction about the axis, the first lens piece 208 and the second lens piece 209 are moved away from each other. Be moved. Then, as described above, the first and second cam grooves 207D, 207
E is provided in the same range around the axis of the outer circumferential surface 207C1 of the cam ring 207,
The range of movement of the first lens frame 208 and the second lens frame 209 in the optical axis direction due to the rotation of 7 overlaps each other.

A mounting portion 20 having a screw hole extending in the vertical direction is provided at a position facing the lower part of the first lens piece 208.
8A is provided, and the mounting portion 208A is
13 with the screw 811 engaged with the frame engaging portion 213C.
It is to be attached by. A mounting portion 209 </ b> A 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.
9A is attached by a screw 812 in a state in which it is engaged with the frame engaging portion 214C of the second lens interlocking plate 214.

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 215 </ b> B is attached to the cam frame 210 by screwing into the bottom wall of 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. A first lens interlocking plate 213 and a second lens interlocking plate 214 are provided between the holding plate 215 and the bottom of the main body 101. First lens interlocking plate 213
Is attached to the first lens piece 208 by a screw 811, and is configured to move integrally with the first lens piece 208. The second lens interlocking plate 214
The second lens piece 209 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 FIGS. 9 and 10, the first lens interlocking plate 213 has a rectangular plate-shaped first central portion 213A connected to the first lens piece 208, and a first central portion 213.
A first arm portion 213B that is bent downward once from the left and right edges of A and then linearly extends left and right in the left and right direction
Are integrally formed. First central part 2
13A is provided with a frame engaging portion 213C having a through hole through which the mounting portion 208A of the first lens piece 208 is inserted and engaged with the screw 811. Guided portions 213E and 213F formed of a ridge extending along the axis are provided at portions of the right and left first arm portions 213B facing the lower part of the portions joined to the first central portion 213A. ing. 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 main body 101, respectively.

The first central portion 213A is supported movably in the front-rear direction with its lower surface and upper surface in the thickness direction being sandwiched between the holding plate 215 and the bottom of the main body 101, respectively. 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 FIGS. 9 and 10, the second lens interlocking plate 214 has a rectangular plate-shaped second central portion 214A slidingly engaged with the second lens piece 209 in the front-rear direction. A second arm 214B that is bent downward once from the left and right edges of the central portion 214A and then linearly extends left and right in the left and right direction is integrally formed. The second central portion 214A is provided at the second central portion 214A.
An extension portion 214A1 extending forward from the second lens frame 2A is provided at a position closer to the front of the extension portion 214A1.
09 is provided with a frame engaging portion 214C which is engaged with the mounting portion 209A and is attached with a screw 812. Extension part 214
In A, the rear portion of the lower surface is in sliding contact with 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.
Also, the second central portion 21 of the second arm portion 214B on the right and left sides.
Guided portions 214E, 214 made of a ridge extending along the axis are provided at portions facing below the portion joined to 4A.
F is provided. That is, the right and left second arms 214B extend rightward and leftward from the guided portions 214E and 214F.

The guided portions 214E and 214F are supported so as to be movable in the optical axis direction while being engaged with the two guide portions 101D2 of the main body 101 described above.
The second central portion 214A is supported movably in the front-rear direction with its lower surface and upper surface in the thickness direction being sandwiched between the holding plate 215 and the bottom of the main body 101, respectively.
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 located forward in the optical axis direction, the second lens interlocking plate 214 is located rearward in the optical axis direction in a state sandwiched between the holding plate 215 and the bottom of the main body 101, and The extension part 214A1 of the second central part 214A is disposed in contact with the upper surface of the one central part 213A. And
In this state, the first and second arms 213D and 214D are positioned so that their positions in the height direction are substantially the same, and the positions of the first and second central portions 213A and 214A in the height direction are changed. They are configured to be almost 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 holding plate 215 is connected to a first lens interlocking plate 213 and a second lens interlocking plate 214 disposed between the holding plate 215 and the bottom of the main body 101. It is provided so that it may be located between.
The first and second lens interlocking plates 213 and 214 are connected to the first and second lens pieces 208 and 209, respectively, and the first and second lens pieces 208 and 209 are supported by the cam ring 207 and the cam frame 210. , Cam ring 207
The cam frame 210 is provided so as to be movable integrally with the press plate 215 in the axial direction, that is, in the optical axis direction. Therefore, at the time of a focus adjustment operation to be described later, the first and second lens interlocking plates 213 and 214 are moved integrally with the pressing plate 215 in the optical axis direction.

As shown in FIGS. 9 and 10, the main body 101 supports the focus adjustment ring 202 so as to be rotatable around the axis and immovable in the axis direction while the focus adjustment ring 202 is housed. The first housing portion 101G that supports the zoom adjustment ring 204 and the second housing portion 101H that supports the zoom adjustment ring 204 so as to be rotatable around the axis and immovable in the axial direction with the zoom adjustment ring 204 accommodated are spaced apart in the axial direction. Is formed. The first accommodating portion 101G is a front wall portion 101
G1 and the rear wall portion 101G2.
The accommodating portion 101H is configured to be sandwiched between the wall portion 101G2 and the rear wall 101B of the main body 101.

According to the above configuration, when 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 piece 208 engaged with each sphere 210B,
The second lens piece 209 includes first and second cam grooves 2 respectively.
In conjunction with the rotation of 07D and 207E, it is guided by the shafts 211 and 212 and is moved along the axial direction of the main shaft 201.
At this time, the first lens piece 208 and the second lens piece 209
Move in opposite directions along the axial direction, that is, 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 focus adjustment ring 202 is rotated. Then
The sphere 2 engaged with the main body 202A of the focusing ring 202
03 is not moved in the axial direction of the main shaft 201,
In the state engaged with the guide groove 206A1 of No. 06, it turns around the axis. Accordingly, the moving shaft 206 and the cam frame 210 fixed integrally thereto are moved inside the main body 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, in a state where the sphere 204B is moving in the range of the first groove 206A21 and in a state where the sphere 204B is moving 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 different. The moving amount of the frame 210 is larger in the former than in the latter. This is because in the former range, a part of the mirror body is quickly retracted, 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. 8, 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 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.

Next, the configuration of the right lens body 300 will be described in more detail with reference to FIGS. 8, 12 to 14. 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.

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 part 310 is composed of a right exterior 310A, a right front cover 310B, a right rear cover 310C (corresponding to a target member in the claims), and the like. The right exterior 310A includes a bottom wall 310A1, a front wall 310A2, a rear wall 310A3, and a right wall 310A4 that are respectively erected from the front and rear and right edges of the bottom wall 310A, and a front wall 310A2, a rear wall 310A3, and a right wall 310A4. And an upper wall 310A5 connecting the upper part.

An opening 310A21 is formed in the front wall 310A2 so that an objective lens 305C described later faces outward. An opening 310 </ b> A <b> 31 for allowing the 304 to advance and retreat is formed. A concave notch 310A51 for allowing the focus adjustment ring 202 and the zoom adjustment ring 204 to face outward is formed at a position near the rear edge of the right edge of the upper wall 310A5.
The right front cover 310B connects the opening 310B1 to the opening 31.
The front wall 310A2 is attached to the front side of the front wall 310A2 by a double-sided tape 310D in a state where it coincides with 0A21.

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 part 305A2 provided on the right side of the main body 305A1, a second holding part 305A3 extending rearward from the left side of the main body 305A1, and a left side extending from the front part of the second holding part 305A3. And the existing engaging portion 305A4. The inner periphery of the main body 305A1 is the objective lens 30
The objective lens 305C is configured to hold an outer peripheral edge of the objective lens 305C by screwing a male screw formed on an outer peripheral portion of the objective holding ring 305B into a female screw formed on the inner peripheral portion.
Is held by the main body 305A1 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 eccentric seat 107 rotates, each engaging wall portion 305A41 comes into contact with the outer peripheral surface of the diopter eccentric seat 107 which rotates eccentrically. It is designed to be moved back and forth. 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, and the guide shafts 301A and 301D.
01D is moved back and forth along the axis direction, that is, the optical axis direction.

As shown in FIGS. 18 to 21,
The right moving body 303 includes a rectangular bottom wall 303A and a bottom wall 30.
3A, a rear wall 303B standing upright from the rear edge, and a bottom wall 30B.
3A, and a side wall 303C standing upright from the left edge. In FIG. 19, when the right moving body 303 is viewed from the front to the rear, the engaging portion 30 extending in the left-right direction is substantially at the center of the left edge of the bottom wall 303A in the front-rear direction.
3A1 is provided, and the engaging portion 303A1 is movably engaged in the axial direction with respect to the mirror interlocking shaft 216 described above. The rear wall 303B has a circular hole 303B1 at the center thereof. Bottom wall 3
A bearing 303D through which the guide shaft 301A is inserted is provided at the right edge of 03A, and a bearing 303E through which the guide shaft 301D is inserted is provided below the side wall 303B. Therefore, the right moving body 303 includes a bearing 303D,
The guide shaft 303E is held by the guide shafts 301A and 301D so as to be movable in the front-rear direction.

As shown in FIGS. 19 and 20, the front surface of the rear wall 303B of the right moving body 303 has a rectangular mounting surface 30 on which a fine movement plate 306D described later is mounted.
3B4. In the front side of the rear wall 303B, the steps adjacent to the upper and lower edges of the attachment surface 303B4 are respectively provided with step portions 303B extending in the left-right direction.
5, 303B6. These steps 303B
5 and 303B6 are provided to face each other, and
By contacting the upper edge 306D91 and the lower edge 306D92 of the 06D, the fine moving plate 306D is configured to be movable in the left-right direction and to be immovable in the vertical direction. In this embodiment, one of the left-right direction and the up-down direction corresponds to a first direction in the claims, and the other of the left-right direction and the up-down direction corresponds to a second direction in the claims. .

As shown in FIGS. 19 and 21, the rear wall 303B has screw insertion holes 303F, 303F at the upper left and lower right positions of the hole 303B1 when viewed from the front.
G is provided penetrating in the thickness direction of the rear wall 303B. The rear wall 303B has a hole 303 as viewed from the front.
A circular jig insertion hole 303H is provided in the upper right portion of B1 so as to penetrate in the thickness direction of the rear wall 303B. Also,
An elongated opening 303I having a longitudinal direction in the left-right direction is provided at a lower left portion of the hole 303B1 so as to penetrate in the thickness direction of the rear wall 303B. The opening 303I faces a jig guide hole 306D8 of a fine movement plate 306D described later,
The jig guide hole 306D8 has an edge surrounding the hole edge.

The prism portion 306 includes a holder 306A (corresponding to a prism holder in the claims), an intermediate plate 306
B, a holder lid 306C, a fine movement plate 306D (corresponding to an intermediate member in the claims), a first prism 306E, a second prism 306F, and the like. As shown in FIGS. 22 to 25, the holder 306A includes an upper wall 306A1 and a bottom wall 306A2 that hold the top and bottom surfaces of the first prism 306E and the second prism 306F,
It has a rectangular rear wall 306A3 connecting the rear edges of the upper wall 306A1 and the bottom wall 306A2.

The first prism 306E and the second prism 30
6F is a roof prism, which is included in the erect prism of the present invention. The first prism 306E and the second prism 306F are configured so that light rays pass in this order, and an intermediate plate 306B is arranged between the exit surface of the first prism 306E and the entrance surface of the second prism 306F. In this state, the holder 306A is adhered and fixed to the upper wall 306A1 and the bottom wall 306A2. The holder lid 306C is connected to the front wall 3 so as to connect the front edge and the side edge of the top wall 306A1 and the bottom wall 306A2 of the holder 306A.
06C1 and right and left side walls 306C2 and 306C3 rising rearward from the left and right edges of the front wall, and the front wall 306C1 facing the incident surface of the first prism 306E.
Is provided with an opening 306C11 through which light passes.

The second wall is also provided on the rear wall 306A3 of the holder 306A.
Aperture 30 through which light emitted from prism 306F passes
6A32 is provided. Rear wall 30 of holder 306A
A fine movement plate 306D is provided between the rear surface of 6A3 and the rear wall 303B of the right moving body 303, and an opening 306D1 through which light passes is provided at the center thereof. Holder 306
A screw hole 306A31 is formed in the rear wall 306A3 of A at two places across the opening 306A32 so as to face rearward. Then, two screws 815 are held via spring washers 816 and 817 through screw insertion holes 303G and 303F provided in the rear wall 303B of the right moving body 303 and screw insertion holes 306D2 provided in the fine moving plate 306D. Two screw holes 3 in rear wall 306A3 of 306A
The holder 306A is screwed onto the
It is configured to be integrally fixed to the right moving body 303 with the 06D interposed therebetween.

As shown in FIGS. 22 to 25,
In the rear wall 306A3 of the holder 306A, a protruding ridge 3 protruding rearward is provided at a position near the left and right edges of the rear surface.
06A33 and 306A34 are provided to extend in the up-down direction about the center line in the up-down direction of the rear wall 306A3, respectively. In addition, the guide portion 306A33 and the opening 306A
32, a guide portion 306C and an opening 306A.
34, columnar projections 306A35 and 306A36 projecting rearward respectively are provided on the rear wall 306.
It is provided so as to be located on the vertical center line of A3.

As shown in FIG. 26, the rear wall 30 is located at the upper left of the opening 306A32 when viewed from behind.
A concave portion 306A37 is formed in a concave shape with respect to the surface of 6A3.
A jig engaging long groove 306A38 which is concave with respect to the surface of A3 and extends in the left-right direction is formed.

As shown in FIG. 26, fine movement plate 30
6D as viewed from the rear, a holder 3 is provided on the left edge thereof.
The notch 306D that guides the convex ridge 306A34 in the vertical direction in a state of contact with the convex ridge 306A34 of the 06A.
3 are provided to extend in the up-down direction,
On the right edge of D, the ridge 306A35 of the holder 306A
Is inserted, a long groove 306D4 for vertically guiding the protruding ridge 306A35 is provided to extend in the vertical direction and penetrate in the thickness direction of the fine moving plate 306D. The opening 306D1 of the fine movement plate 306D and the notch 306D
3 and between the opening 306D1 and the long groove 306D4, respectively, the protrusions 306A35,
06A36 are inserted, these convex portions 306A3
5, a long groove 306D for guiding 306A3 in the vertical direction
5, 306D6 are provided extending in the vertical direction.
A jig engaging long groove 306D7 extending in the vertical direction is provided at an upper left portion of the opening 306D1 of the fine moving plate 306D so as to penetrate in the thickness direction of the fine moving plate 306D.
A jig guide hole 306D8 having a circular shape is provided at a lower right portion of 1 in the thickness direction of the fine moving plate 306D.

As described above, the holder 306A is fixed to the right moving body 303 via the fine movement plate 306D, but the first and second prisms 306 held by the holder 306A are fixed.
It is necessary to adjust the vertical and horizontal positions of E and 306F with respect to the optical axis of the telescope optical system. Next, a configuration for performing this adjustment will be described. First, the positional relationship between the holder 306A and the fine movement plate 306D will be described with reference to FIGS. Holder 306A and fine movement plate 306
The mounting of D is performed with the front surface of fine movement plate 306D facing the rear surface of rear wall 306A3 of holder 306A, that is, the surface opposite to the rear surface of fine movement plate 306D shown in FIG.

As described above, the ridges 306A33 and 306A34 of the holder 306A and the ridges 306A35 and 30
6A36 abuts or is inserted into notch portion 306D3 and long groove portions 306D4, 306D5, 306D6 of fine moving plate 306D, so that holder 306A can move in the vertical direction with respect to fine moving plate 306D, and cannot move in the horizontal direction. Supported. Further, the rear wall 306A3 of the holder 306A
Recess 306A37 faces the jig engaging long groove 306D7 of the fine movement plate 306D. Also, the holder 306A
The jig engaging long groove 306A38 of the rear wall 306A3 faces the jig guide hole 306D8 of the fine moving plate 306D.

Next, the positional relationship among the right moving body 303, the fine moving plate 306D, and the holder 306A will be described with reference to FIGS. As described above, the right moving body 30
3 on the mounting surface 303B4 of the rear wall 303B.
The fine movement plate 306D is attached to the rear wall 303B with the rear surface facing. Also, a step portion 303B5 of the right moving body 303,
The fine moving plate 306D is supported so as to be able to move in the left-right direction with respect to the right moving body 303 and not to be movable in the up-down direction by the 303B6 abutting on the upper edge 306D91 and the lower edge 306D92 of the fine moving plate 306D. The jig guide hole 303H of the rear wall 303B of the right moving body 303 is
Jig engaging long groove 306D7. The opening 303I of the rear wall 303B of the right moving body 303 is
6D faces the jig guide hole 306D8.

Therefore, according to the above configuration, the jig guide hole 306D8 of the fine moving plate 306D and the holder 306A are provided through the opening 303I of the rear wall 303B of the right moving body 303.
The jig engaging long groove 306A38 faces rearward. Also, a jig guide hole 303 in a rear wall 303B of the right moving body 303.
The jig engagement hole 306D7 of the fine movement plate 306D and the recess 306A37 of the holder 306A face rearward through H.

FIG. 42 is a configuration diagram of a jig for moving the position of the holder and the fine moving plate by being inserted into the above-described jig guide hole and jig engaging long groove, and FIG. 42 (A) is a jig. FIG. 42 (B) is a plan view of the jig. The jig 10
A cylindrical first shaft portion 12 (corresponding to a main body portion in the claims); and a cylindrical second shaft extending from an end 12A of the first shaft portion 12 in the longitudinal direction of the first shaft portion 12. A portion 14 (corresponding to the eccentric shaft portion in the claims). 1st shaft part 1
The diameter of 2 is set so that the first shaft portion 12 can rotate around its central axis without rattling when the first shaft portion 12 is inserted through the jig guide holes 303H and 306D8 described above. Have been. The diameter of the second shaft portion 14 is
Are inserted in the jig engaging long grooves 306A38, 306D7 described above, and are set so that their outer peripheral surfaces abut two opposing side edges that extend in the longitudinal direction. The second shaft 14 is provided such that the center axis thereof is eccentric with respect to the center axis of the first shaft 12.

The diameter of the jig guide hole 303H of the right moving body 303 and the jig guide hole 306D of the fine moving plate 306D are described above.
8, the distance between the two side edges of the jig engaging long groove 306A38 of the holder 306A and the fine movement plate 306
The jig engagement long groove 306D7 of D is configured to have the same interval between two side edges.

The operation of adjusting the vertical position of the holder 306A using the jig 10 configured as described above will be described with reference to FIGS. 19 to 26 and FIG. A description will be given with reference to FIG. 43 showing the positional relationship between the fine movement plate, the holder, and the jig. FIG. 43 shows the rear wall 30 of the right moving body.
3B shows a state where the front is viewed from the rear of 3B. Note that the holder 306A and the right moving body 303 are previously set to the fine moving plate 306D.
Is loosely fixed by two screws 815 with the. In this case, the first shaft portion 12 and the second shaft portion 14 of the jig 10 are moved from the rear of the right moving body 303 to the rear wall 3.
The second shaft portion 14 is inserted into the jig guide hole 306D8 of the fine moving plate 303D through the opening 303I of the holder 303.
A is inserted into the jig engagement long groove 306A38. Then, in this state, the first shaft portion 12 holds the jig 10 in the jig guide hole 306D.
8 is rotated in a state guided by 8. That is, the jig 10 has the jig guide hole 306D8 and the jig engagement long groove 306A.
It is rotated while engaged with the prism position adjusting mechanism constituted by 38. Then, the jig guide hole 3 is formed in a state where the second shaft portion 14 eccentric to the first shaft portion 12 has its outer peripheral surface in contact with the side edge portion of the jig engaging long groove 306A38.
By moving about the center of 06D8, the holder 306A supported so as to be movable in the vertical direction with respect to the fine moving plate 306D and immovable in the horizontal direction is moved to the fine moving plate 30.
It is moved only in the vertical direction with respect to 6D. Here, the fine moving plate 306D is supported so as to be immovable in the vertical direction with respect to the right moving body 303.
03 is moved only in the vertical direction. The second shaft portion 14 has a jig engaging long groove 3 extending in the left-right direction.
Since the holder 306A moves in the 06A38, no force is applied to the holder 306A in the left-right direction.

Next, the operation of adjusting the horizontal position of the holder 306A using the jig 10 will be described. In this case, the first shaft portion 12 and the second shaft portion 14 of the jig 10 are moved from the rear of the right moving body 303 to the jig guide holes 30 of the rear wall 303B.
3H, the second shaft portion 14 is inserted into the jig engaging long groove 306D7 of the fine moving plate 303D. Then, in this state, the jig 10 is rotated with the first shaft portion 12 being guided by the jig guide hole 303H. That is, the jig 10 is rotated in a state where the jig 10 is engaged with the prism position adjusting mechanism formed by the jig guide hole 303H and the jig engaging long groove 306D7. Then, the second shaft portion 14 eccentric with respect to the first shaft portion 12 has its outer peripheral surface in contact with the side edge portion of the jig engaging long groove 306D7, and is centered on the center of the jig guide hole 303H. By moving, the fine moving plate 306D supported so as to be movable in the right and left directions with respect to the right moving body 303 and immovable in the vertical direction is moved only in the left and right directions with respect to the right moving body 303. Here, the holder 306A is attached to the fine moving plate 30.
Since the holder 306A is supported immovably in the left-right direction with respect to 6D, the holder 306A is moved only in the left-right direction with respect to the right moving body 303. In addition, since the second shaft portion 14 moves within the jig engaging long groove 306D7 extending in the vertical direction, no vertical force is applied to the fine moving plate 306D. Also, the concave portion 3 of the rear wall 306A3 of the holder 306A.
06A37 is a jig engaging long groove 306D of the fine moving plate 306D.
7 has a function of accommodating the tip of the second shaft portion 14 of the jig 10 inserted into the jig 10.

After the position adjustment in the left-right direction and the up-down direction using the jig 10 is completed, the two screws 815 are tightened so that the holder 306A and the right moving body 303
Completely fix with D sandwiched.

Therefore, the holder 30 is
The position of the erect prism 6A, that is, the first and second prisms 306E and 3606F held by the holder 306A, in the left-right direction and the vertical direction with respect to the optical axis of the telescope optical system can be easily adjusted. in this way,
Since the positioning of the erecting prism can be easily performed by the jig 10, no skill is required for the adjustment operation, the operation time is shortened, and the operation efficiency can be improved. Also,
Since the amount of movement of the second shaft portion 14 due to the rotation of the jig 10 is small, the holder 306A, the fine moving plate 306D,
There is also an effect that it becomes easy to adjust the movement in the left-right direction by a small amount. As will be described later, the above-described operation of adjusting the position of the erecting prism is performed by adding the right eyepiece 30 to the right moving body 303.
It is configured so that it becomes possible even after attaching 4.

Here, the structure of the rear part from the rear wall 303B of the right moving body 303 will be described. Projections 303B3 extend rearward from the upper edge, the left edge, and the lower edge of the rear wall 303B of the right moving body 303, respectively.
A screw hole 303B31 is formed in 03B3 in the thickness direction. As shown in FIGS. 32 to 35,
The right eyepiece 304 includes a bottom wall 304A and a right side wall 304 that is erected from a right edge, a left edge, and a rear edge of the bottom wall 304A.
B, left side wall 304C, rear wall 304D, and right side wall 3
04B, a left side wall 304C, and an upper wall 304E connecting the upper portions of the rear wall 304D. Bottom wall 304A,
The front edge portions of the right wall 304B, the left wall 304C, and the upper wall 304E are configured so that the rear wall 303B of the right moving body 303 is fitted therein, and the bottom wall 304A, the right wall 304B, and the upper wall 3
At the position near the front edge of 04E, screw insertion holes 304 are respectively provided.
F is provided. Then, each of the three screws 818 is inserted into each of the projections 303 of the rear wall 303B through each of the screw insertion holes 304F.
By screwing into the screw hole 303B31 formed in B3, the rear wall 303B of the right moving body 303 is fixed to the right eyepiece tube 304. Therefore, the right eyepiece 304
And the prism unit 306 are integrally fixed to the right moving body 303, and the right eyepiece 304 and the prism unit 30 are fixed.
6. The right moving body 303 includes the right frame 301 and the objective unit 305.
Are provided movably in the optical axis direction along the guide shafts 301A and 301D. A hole 304G is formed in the center of the rear wall 304D of the right eyepiece 304 in a thickness direction of the rear wall 304D, and a female screw 304G1 is formed on an inner peripheral portion of the hole 304G, so that the mounting portion 304D1 is formed.
Is provided. An eyepiece lens frame 309A, which will be described later, is attached to the attachment portion 304D1.

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

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. An engagement protrusion 307A21 that engages with the concave groove 213D provided on the right arm 213B of the first lens interlocking plate 213 is provided below the distal end of the engagement arm 307A2. The engaging projection 307A21 has a concave groove 213D.
Is configured to be immovable in the front-rear direction while being movable in the left-right direction while being engaged with. Body 3
A guide shaft 31 is provided before and after the bearing arm 307A3 of the bearing 07A1.
The bearing holes 307A31 and 307A32 through which the holes 1 are inserted are provided. The bearing arm 307A4 is provided with a bearing hole 307A41 through which the guide shaft 311 is inserted. Therefore, the main body 307A1 has bearing holes 307A31, 307A32, 307 through which the respective guide shafts 311 are inserted.
It is held movably in the front-rear direction with respect to each guide shaft 311 by three places of A41.

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 lower end of the engaging arm portion 308A2, the engaging convex portion 308 engaging with the concave groove 214D provided on the right arm portion 214B of the second lens interlocking plate 214 described above.
A21 is provided. The engagement projection 308A21 is configured to be immovable in the front-rear direction and movable in the left-right direction while being engaged with the concave groove 214D. The guide shaft 31 is provided on the bearing portion 308A3 of the main body 308A1.
1 is provided with a bearing hole 308A31 through which the hole 1 is inserted.
Further, bearing holes 308A41 and 308A42 through which the guide shaft 311 is inserted are provided in the bearing portion 308A4 at an interval in front and rear. Therefore, the main body 308A1 has the bearing portions 308A31, 308 into which the respective guide shafts 311 are inserted.
A41 and 308A42 each guide shaft 311
Is held so as to be movable in the front-rear direction with respect to.

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
The male screw 309A2 formed on the outer peripheral portion of the eyepiece frame 309A is screwed into the female screw of the attachment portion 304D1 provided on the rear wall 304D of the eyepiece frame 304.
9A is attached to the mounting portion 304D1.

As shown in FIG.
9D is a main body 309D1 having a rectangular plate shape having a thickness.
The main body 309D1 has a hole 309D penetrating in the thickness direction through the center of the rear surface 309D2 and the front surface 309D3.
4 are provided and formed in an annular shape. Rear surface 309D2
Is mounted facing the rear wall 304D of the right eyepiece 304. A right eyepiece 304 described later is provided on the rear surface 309D2.
Through holes 304H and 304I provided in the rear wall 304D
Are provided on the rear wall 304D of the right eyepiece 304, and jig insertion holes 304J of the bearing means 304J and 304K provided on the rear wall 304D of the right eyepiece 304.
1, 304K1 and convex portions 309D23, 309D24 that can be fitted to the arc portions 304J2, 304K2 are provided.

The projections 309D21 to 309D24
Are through holes 304H, 304I, bearing means 304J, 30
4K, the eye 309D and the right eyepiece 304 are positioned. Then, the eye 309D is moved to the rear wall 304D of the right eyepiece 304.
The through holes 304H and 304I and the bearing means 304J and 304K are covered with respect to the outside.

On the upper surface of the bottom wall 304A of the right eyepiece tube 304, a guide groove 304A1 is formed extending in the front-rear direction to guide the rearward portion of the engagement arm 307A2 of the first lens frame 307A in the front-rear direction. Have been. Also, right eyepiece 3
04 on the upper surface of the bottom wall 304A.
A guide groove 304A2 that guides a portion of the engagement arm portion 308A2 near the rear in the front-rear direction is formed on the left side of the guide groove 304A1 so as to extend in the front-rear direction.

Further, a portion of the first lens frame 307A closer to the front of the engaging 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. A guide groove is formed on the lower surface of the bottom wall 303A of the right moving body 303 so as to extend in the front-rear direction to guide the forward portion of the engagement arm 307A2 of the first lens frame 307A in the front-rear direction. In addition, a guide groove that guides the forward portion of the engagement arm 308A2 of the second lens frame 308A in the front-rear direction is formed to extend 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 right 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 separating from each other, the objective lens 305C, the prism unit 306, the first lens 307, the second lens
The magnification of the telescope optical system constituted by the lens 308 and the third lens 309 is reduced or enlarged. That is, in this telescope optical system, the objective lens is constituted by the objective lens 305C,
The eyepiece includes a first lens 307, a second lens 308, and a third lens 309. The magnification of the telescope optical system is reduced or enlarged 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. The right eyepiece tube 304 constitutes an eyepiece housing for housing the eyepiece.

Here, the structure of the right eyepiece 304 will be described in more detail. As shown in FIG. 32, in a state where the rear wall 304D of the right eyepiece tube 304 is viewed from the rear to the front, the right and lower left portions of the hole 304G of the rear wall 304D are circular through holes, respectively. 304H and 304I are provided. These two through holes 304H, 340
I is the two screw holes 306A3 of the holder 306 described above.
1 and 30631, two screw insertion holes 306D2 and 306D2 of the fine moving plate 306D, and two screw insertion holes 303F and 303G of the right moving body 303, respectively. Then, by inserting a driver through the two through holes 304H and 304I of the right eyepiece 304, the two screws 815 for fixing the fine moving plate 306D and the holder 306 to the right moving body 303 are tightened or loosened by the driver. It is configured to be able to.

Further, bearings 304J and 304K are provided at the upper left and lower right of the hole 304G of the right eyepiece 304. The bearing means 304J penetrates in the thickness direction of the rear wall 340D and the portion of the rear wall 304D of the right eyepiece 304 (corresponding to a plate-shaped portion having the thickness in the claims), and the jig 10 can be inserted. The jig insertion hole 304J1 and the jig insertion hole 30 in a part of the hole edge of the jig insertion hole 304J1.
A radius smaller than the radius of the first shaft portion 12 of the jig 10 (a radius smaller than the radius of the first shaft portion 12 in this example) is formed in an arc shape bulging radially outward of the jig insertion hole 304J1 from the center of the 4J1. And an arc portion 304J2 having the following.

Similarly, the bearing means 304K is also used for the right eyepiece tube 30.
4 and a jig insertion hole 304K1 which penetrates in the thickness direction of the rear wall 340D and allows the jig 10 to be inserted. ,
A part of a hole edge of the jig insertion hole 304K1 has an arc shape bulging outward from the center of the jig insertion hole 304K1 in the radial direction of the jig insertion hole 304K1, and is smaller than the radius of the first shaft portion 12 of the jig 10. (In this example, a radius smaller than the radius of the first shaft portion 12).

Next, an operation of adjusting the vertical and horizontal positions of the holder 306A from the rear side of the rear wall 304D of the right eyepiece 304 using the jig 10 will be described. FIG.
3 is an explanatory diagram showing the positional relationship between the rear wall of the right moving body, the fine moving plate, the holder, and the jig. FIG. 44 shows the positional relationship between the right eyepiece, the rear wall of the right moving body, the fine moving plate, the holder, and the jig. FIG. FIG. 43 shows a state in which the front is viewed from behind the right moving body 303, and FIG. 44 shows a state in which the front is viewed from behind the rear wall 304D of the right eyepiece 304. The first and second lens units 307 are provided between the right moving body 303 and the right eyepiece 304.
308 are accommodated, and an eyepiece 309 is attached to the right eyepiece 304. Also, holder 3
06A and the right moving body 303 are fixed by two screws 815 with the fine moving plate 306D interposed therebetween.

First, as shown in FIGS. 14, 31 and 32, the eye 309D is attached to the rear wall 3 of the right eyepiece tube 304.
Remove from 04D. Thereby, the through-holes 304H and 304I of the right eyepiece 304 and the bearing means 304J and 304K.
Is facing outward. Rear wall 30 of right eyepiece 304
Insert a driver from 4D holes 304H and 304I
By loosening the two screws 815, the holder 306A and the fine moving plate 306D can be moved with respect to the right moving body 303.

Next, as shown in FIGS. 43 and 44, the first shaft portion 12 and the second shaft portion 14 of the jig 10 are inserted into the jig of the bearing means 304K of the rear wall 304D of the right eyepiece 304. Inserted through the hole 304K, the rear wall 30 of the right moving body 303
The jig guide hole 306D8 of the fine movement plate 303D is inserted through the opening 303I of the 3B, and the second shaft portion 14 is inserted into the holder 306A.
Into the jig engaging long groove 306A38. Then, the jig 10 is rotated while the first shaft portion 12 is guided by the jig guide hole 306D8. At this time, the outer peripheral surface of the first shaft portion 12 of the jig 10 is fixed to the arc portion 304K2 of the bearing means 304K.
The jig 10 is rotated while being pressed against the side. As a result, the jig 10 is rotatably supported by the circular arc portion 304K2 without rotating the outer peripheral surface of the first shaft portion 12.

In this example, since the arc portion 304K2 has a smaller radius than the radius of the first shaft portion 12,
The outer peripheral surface of the shaft portion 12 is securely supported by two portions where the hole edge of the jig insertion hole 304K1 and the arc portion 304K2 are connected. Therefore, the jig 10 can be reliably rotated by the bearing means 304K. In addition, even when the arc portion 304K2 has the same radius as the radius of the first shaft portion 12, the outer peripheral surface of the first shaft portion 12 is reliably supported by the arc portion 304K2. Therefore, the jig 10 can be reliably rotated by the bearing means 304K in the same manner as described above. Less than,
As described above, the holder 306A can be moved only in the vertical direction with respect to the right moving body 303 by the rotation operation of the jig 10, whereby the vertical position adjustment of the prism is performed.

Next, the position adjustment of the prism in the left-right direction will be described. First, as shown in FIG.
The first shaft 12 and the second shaft 14 of the jig 10 are connected to the right eyepiece 30.
4 jig insertion hole 30 of bearing means 304J of rear wall 304D
4J, and the second shaft portion 14 is inserted into the jig engaging long groove 306D7 of the fine moving plate 303D. And and,
In this state, the first shaft portion 12 holds the jig 10 in the jig guide hole 303.
Rotate while guided by H. At this time, the jig 10 is rotated while pressing the outer peripheral surface of the first shaft portion 12 of the jig 10 against the arc portion 304J2 of the bearing means 304J. As a result, the jig 10 is rotatably supported by the arc portion 304J2 without causing the outer peripheral surface of the first shaft portion 12 to move.

Also, in the present example, the arc portion 304J2 has a smaller radius than the radius of the first shaft portion 12, as described above, so that the outer peripheral surface of the first shaft portion 12 is cured. The hole edge portion of the tool insertion hole 304K1 and the arc portion 304J2 are reliably supported by two connecting portions. Therefore, the jig 10 can be reliably rotated by the bearing means 304J. Further, even when the arc portion 304J2 has the same radius as the radius of the first shaft portion 12, the outer peripheral surface of the first shaft portion 12 is surely supported by the arc portion 304K2 as described above. Thus, the jig 10 can be reliably rotated by the bearing means 304J. Hereinafter, the holder 30 is rotated by rotating the jig 10.
6A can move only in the left-right direction with respect to the right moving body 303, and thereby the position of the prism in the left-right direction is adjusted as described above.

After the position adjustment in the left-right direction and the up-down direction using the jig 10 is completed, two screws 815 are inserted through the holes 304H and 304I of the rear wall 304D of the right moving body 304.
By tightening, the holder 306A and the right moving body 303
Is completely fixed with the fine moving plate 306D sandwiched therebetween.

Therefore, the right eyepiece 304 is moved to the right moving body 3
Even in the state of being attached to the holder 03, the light of the telescope optical system of the erecting prism composed of the first and second prisms 306E and 3606F held by the holder 306A using the jig 10 is held. The position in the horizontal direction and the vertical direction with respect to the axis can be easily adjusted. Thus, without removing the right eyepiece 304 from the right moving body 303, that is, without disassembling the telescope optical system,
Since the positioning of the erecting prism can be easily performed, when adjusting the prism position in the process of assembling, the operation time is shortened, and the operation efficiency can be improved.

In the present embodiment, the eyepiece 309D constituting the exterior member of the binoculars is attached to the right eyepiece tube 304, and the eyelet 309D allows the bearing means 304J, 304K,
In other words, the portion engaging with the jig 10 is covered outside. Therefore, this target 309D
The erect prism can be easily positioned without disassembling other parts simply by removing the erecting prism, thus shortening the work time required for positioning the erect prism even after the binoculars are completed. , Work efficiency can be improved.

Also, the jig 10 is provided with bearing means 304J, 30
Since the positioning is performed without shaking by 4K, the driving force of the jig 10 can be reliably transmitted at the time of adjustment,
There is also an operational effect that the adjustment operation can be performed smoothly and reliably.

In the above-described embodiment, the jig insertion hole 304K1 has a configuration in which the hole edge portion and the circular arc portion 304K2 are securely supported by the two connecting portions.
A configuration as described below may be adopted. FIG.
FIG. 4 is a configuration diagram of a jig according to another embodiment.
5A is a front view of the jig, and FIG. 45B is a plan view of the jig. FIG. 46 is an explanatory diagram of the operation of the jig. As shown in FIG. 45, the jig 20 has a cylindrical first shaft portion 22.
And a column-shaped second shaft portion 24 extending from the end portion 221 of the first shaft portion 22 in the longitudinal direction of the first shaft portion 22. The first shaft portion 22 includes two large-diameter portions 222 and 224 and a small-diameter portion 223 connecting the two large-diameter portions 222 and 224 along the longitudinal direction of the first shaft portion. FIG.
As shown in the figure, the diameter of the small diameter portion 223 is formed to be substantially the same as the diameter of the arc portion 304K2 of the bearing means 304K, for example. By being exactly applied to the part 304K,
It is supported rotatably without shaking. In this case, the first shaft portion 22 and the second shaft portion 24 of the jig 20 are inserted into the jig guide hole 306D8 of the fine moving plate 303D from the rear of the right moving body 303 through the opening 303I of the rear wall 303B. Second
The shaft portion 24 is fixed to the jig engaging long groove 306A38 of the holder 306A.
Insert Then, in this state, the jig 20 is moved to the small diameter portion 22.
3 is rotated while being guided by the arc portion 304K2. That is, the jig 20 is rotated in a state where the jig 20 is engaged with the prism position adjusting mechanism formed by the jig guide hole 306D8 and the jig engagement long groove 306A38. Then, the second shaft portion 24 eccentric to the first shaft portion 22 moves about the center of the arc portion 304K2 in a state where the outer peripheral surface thereof is in contact with the side edge portion of the jig engaging long groove 306A38. Thus, the holder 306 supported to be movable in the vertical direction with respect to the fine movement plate 306D and not to be movable in the horizontal direction.
A is moved only in the vertical direction with respect to fine movement plate 306D. It is a matter of course that such a jig 20 has the same operation and effect as the above-described jig 10.

[0114] The form of the jig is as follows.
Jig engaging long groove 306D7 of fine movement plate 306D and holder 30
What is necessary is to provide a protrusion that can be engaged with the jig engagement long groove 306A38 of 6A and to move the fine moving plate and the holder by rotating the shaft-like member while being supported by the bearing means. It may be in a form.

Next, a description will be given of a left objective frame 405A having a configuration different from that of the right lens body 300 among the elements forming the left lens body 400. As shown in FIGS. 16 and 17, the left objective frame 405A has a cylindrical wall-shaped main body 405A1, a first holding portion 405A2 provided on the left side of the main body 305A1, and a rearward portion from the right side of the main body 405A1. The second holding portion 305A3 extends. The inner peripheral portion of the main body 405A1 is configured to hold the outer peripheral edge of the objective lens 405C, and a male screw formed on the outer peripheral portion of the objective holding ring 405B is screwed into a female screw formed on the inner peripheral portion. The objective lens 405C is held by the main body 405A1 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 305A3 with the axis thereof directed in the front-rear direction.
The guide shaft 401 </ b> D is inserted through 31. And the second
The 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. Also, the right objective frame 4
05A is a screw 81 screwed to the first holding portion 405A2.
9 is fixed to the guide shaft 301A.

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.

Next, a description will be given of a structure for adjusting the position of the erect prism in the up-down direction and the left-right direction among the elements constituting the left lens body 400. Right mirror body 3 mentioned above
Similar to 00, a mechanism for adjusting the position of the erect prism is also provided in the left mirror 400. That is, FIG.
30, the left moving body 403 is configured to be substantially symmetrical with the right moving body 303, but a screw insertion hole 403F provided in the rear wall 403B.
The positional relationship between 403G, the jig guide hole 403G, and the opening 403I corresponds to a state in which the rear wall 303B of the right moving body 303 is rotated 180 degrees about a central axis extending in the thickness direction. In the left mobile unit 403, the parts corresponding to the right mobile unit 303 are assigned the lower two digits and letters in common with the right mobile unit 303, and detailed description is omitted.

Further, the fine moving plate 406D is the fine moving plate 3 on the right side.
06D has the same shape as that of the left moving body 4 while being rotated by 180 degrees about a central axis extending in the thickness direction.
03 and the holder 406A. Holder 4
Reference numeral 06A has the same shape as the holder 306A on the right side, and is provided in a state of being rotated by 180 degrees around a central axis extending in the thickness direction of the wall 306A3.

As shown in FIGS. 37 to 41, the left eyepiece 404 is generally symmetrical to the right eyepiece 303, but the left eyepiece 404 is provided on the rear wall 404D. Holes 404H, 304I, bearing means 404J,
The positional relationship of 404K is determined by the rear wall 304D of the right eyepiece 304.
Corresponds to a state of being rotated 180 degrees about a central axis extending in the thickness direction. And the left eyepiece tube 40
In the case of No. 4, only the last two digits of numbers and alphabets are assigned to portions corresponding to the right eyepiece 304, and detailed description is omitted.

The left eyepiece 404, the left moving body 403,
The positional relationship between the holder 406A and the fine movement plate 406D and the position adjustment operation by the jig are the same as those in the right lens body, and thus detailed description thereof will be omitted. Also, the operation and effect of the optical adjustment mechanism for adjusting the position of the erect prism on the left lens body side are, of course, the same as those of the right lens body side described above.

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 of the binoculars 1000 in the left-right direction, that is, adjacent to the same axis, the right hand 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,
Focus adjustment ring 20 fixed integrally with focus adjustment ring 202
2 is rotated and the ball 2 engaged with the focus adjustment ring 202
03 moves along the guide groove 206A1 formed in the first shaft portion 206A of the moving shaft 206. Thereby, the moving shaft 206 is moved from the frontmost position to the rearward position along the main shaft 201, and the flange portion 206C of the moving shaft 206 is moved to the front wall portion 101G1 of the first housing portion 101G of the main body 101. The position is regulated by the contact. Note that the ball 203 has a first groove 206A11 having a wide pitch.
The moving amount of the moving shaft 206 is larger than the rotating amount of the focus adjustment ring 202 in the range of moving along the
3 moves to the second groove portion 206A12 having a small pitch, the moving shaft 20 moves with respect to the rotation amount of the focus adjustment ring 202.
6 becomes smaller.

A holding plate 215 is integrally attached to the moving shaft 206, and a mirror interlocking shaft 216 is integrally attached to the holding plate 215. Accordingly, the right moving body 306 and the left moving body 406 are moved rearward in conjunction with the movement of the moving shaft 206. As a result, the right eyepiece tube 304 and the left eyepiece tube 40
4 protrudes from the rear of 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 41
OA is fixed to the right interlocking plate 109 and the left interlocking plate 110, respectively. Therefore, the right mirror 300 and the left mirror 400
Moves in conjunction with the direction of approach or separation along the left-right direction, and moves the same distance in the left-right direction with respect to the center in the left-right direction of the binoculars 1000, so that 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.

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 independently moved along the optical axis direction. As a result, the first lens frame 20
8, the first lens interlocking plate 213 and the second lens interlocking plate 214 attached to the second lens frame 209, and the first lens frame 307A engaged with the first lens interlocking plate 213 and the second lens interlocking plate 214 Is the first lens frame 308A.
In conjunction with the lens top 208 and the second lens top 209, they are moved in a direction of coming and going with each other. That is, when the first lens 307B and the second lens 308C come into contact with and separate from each other, the objective lens 305C, the prism unit 306, the first lens 3
07B, the second lens 308C, and the third lens 309C reduce or enlarge the magnification of the telescope optical system. Of course, in the left lens body 400, the zoom adjustment operation is simultaneously performed by the same configuration as the right lens body 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.

In the present embodiment, fine movement plate 306D
Notch 306D3, long groove 306D4, 306D5,
The first guide portion of the intermediate member of the present invention is constituted by 306D6, and the ridge portions 306A33 and 306 of the holder 306A are formed.
A34 and the convex portions 306A35 and 306A36 constitute the first guided portion of the prism holder of the present invention.
Also, the step portions 303B5 and 303B6 of the right moving body 303 constitute a second guide portion of the holding member of the present invention, and the upper edge 306D91 and the lower edge 306D92 of the fine moving plate 306D constitute a second guided portion of the present invention. ing. Further, the fine plate 306D constitutes a first plate-shaped portion of the present invention,
The first hole portion of the present invention is constituted by the jig guide hole 306D8 of the fine movement plate 306D, and the first long groove portion of the present invention is constituted by the jig engaging long groove 306A38 of the holder 306A. Also, the rear wall 303B of the right moving body 303 constitutes a second plate-like portion of the present invention, and the jig guide hole 303H of the right moving body 303 constitutes a second hole of the present invention. The tool engaging long groove 306D7 constitutes the second long groove of the present invention.

Further, in the present embodiment, fine movement plate 3
06D notch 306D3, long groove 306D4, 306
D5, 306D6, ridge 306A3 of holder 306A
3, 306A34, convex portions 306A35, 306A36,
The steps 303B5 and 303B6 of the right moving body 303, the upper edge 306D91, the lower edge 306D92, and the jig 10 of the fine moving plate 306D constitute the prism holding mechanism of the present invention. In the present embodiment, the prism position adjusting mechanism of the present invention is constituted by the jig engaging long groove 306A38 of the holder 306A and the jig guide hole 306D8 of the fine moving plate 306D, and the jig engaging long groove 306D7 of the fine moving plate 306D. And the jig guide hole 303H of the right moving body 303 constitute a prism position adjusting mechanism of the present invention.

[0130] In this embodiment, the jig 10 is used.
The bearing means 304J rotatably supports the jig insertion hole 3
04J1 and the arc portion 304J2, and the bearing means 304K is provided with the jig insertion opening 304K1 and the arc portion 304.
Although an example constituted by K2 has been described, the bearing means of the present invention is not limited to the above-described structure, and a well-known structure that rotatably supports the jig 10 can be adopted. Further, the prism position adjusting mechanism in the present invention is not limited to the configuration of the above-described embodiment, and moves the position of the erect prism in the first and second directions in conjunction with the turning operation of the jig. Anything that can do it is acceptable.

[0131]

According to the present invention, there are provided an objective lens, an erect prism for inverting an image formed by the objective lens to obtain an erect image, and an eyepiece for forming an erect image obtained by the erect prism. The left and right telescope optical systems having the first and second directions orthogonal to the optical axis of the telescope optical system and intersecting each other
A prism holding mechanism that holds the erecting prism movably in the first and second directions when the erecting prism is in the second direction; The configuration includes a prism position adjusting mechanism for moving the position in the first and second directions, and bearing means for rotatably supporting the adjusting jig when rotating the adjusting jig. For this reason, the erecting prism that is movably held in the first and second directions by the prism holding mechanism by rotating the adjusting jig rotatably supported by the bearing means to link the prism position adjusting mechanism and the prism holding mechanism. Is adjusted. Therefore, it is possible to easily adjust the respective positions of the erect prism in the first and second directions with respect to the optical axis of the telescope optical system, and it is possible to improve work efficiency.

[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.

FIG. 18 is a plan view of the right moving body.

FIG. 19 is a front view of the right moving body, showing a state in which FIG. 18 is viewed from the direction of arrow A1.

FIG. 20 is a side view of the right moving body, showing FIG. 18 as viewed from an arrow A2.

FIG. 21 is a rear view of the right moving body, showing a state where FIG. 18 is viewed from an arrow A3.

FIG. 22 is a bottom view showing a state where a holder holding the prism is viewed from below.

FIG. 23 is a front view of the holder, showing a state in which FIG. 22 is viewed from an arrow B1.

FIG. 24 is a side view of the holder showing FIG. 22 as viewed from arrow B2.

FIG. 25 is a side view of the holder showing FIG. 22 as viewed from arrow B2.

FIG. 26 is a rear view of the fine movement plate.

FIG. 27 is a plan view of a left moving body.

FIG. 28 is a front view of the left moving body, showing a state in which FIG. 27 is viewed from the direction of arrow C1.

FIG. 29 is a side view of the left moving body, showing a state in which FIG. 27 is viewed from an arrow C2.

30 is a rear view of the left moving body, showing a state where FIG. 27 is viewed from an arrow C3.

FIG. 31 is a front view showing a state where the right eyepiece is viewed from the front.

FIG. 32 is a rear view showing the right eyepiece as viewed from the rear.

FIG. 33 is a sectional view taken along line D1D1 of FIG. 31;

FIG. 34 is a bottom view of the right eyepiece.

FIG. 35 is a sectional view taken along line D2D2 of FIG. 31;

36 (A) is a rear view showing a state where the eye is viewed from the rear, and FIG. 36 (B) is a view showing a state where FIG. 36 (A) is viewed from the direction of arrow E1. Side view,
FIG. 36 (C) is a front view showing a state where the eye is viewed from the front, and FIG. 36 (D) is a bottom view showing a state where FIG. 36 (C) is viewed from the direction of arrow E2.

FIG. 37 is a front view showing a state in which the left eyepiece is viewed from the front.

FIG. 38 is a rear view showing a state where the left eyepiece is viewed from the rear.

39 is a sectional view taken along line F1F1 of FIG.

FIG. 40 is a bottom view of the left eyepiece.

41 is a sectional view taken along line F2F2 in FIG. 37.

FIG. 42 is a configuration diagram of a jig for moving positions of a holder and a fine movement plate. FIG. 42 (A) is a front view of the jig,
FIG. 42B is a plan view of the jig.

FIG. 43 is an explanatory diagram showing a positional relationship among a rear wall, a fine moving plate, a holder, and a jig of the right moving body.

FIG. 44 is an explanatory diagram showing a positional relationship among a right eyepiece, a rear wall of a right moving body, a fine moving plate, a holder, and a jig.

45 is a configuration diagram of a jig according to another embodiment, FIG. 45 (A) is a front view of the jig, and FIG. 45 (B) is a plan view of the jig.

FIG. 46 is an explanatory diagram of the operation of the jig.

[Explanation of symbols]

 1000 binoculars 300 right body 303 right moving body 304 right eyepiece 304J, 304K bearing means 306D fine moving plate 306A holder 306E first prism 306F second prism 400 left body 403 left moving body 404 left eyepiece 404J, 404K bearing means 406D Fine movement plate 406A Holder 406E First prism 406F Second prism

Claims (10)

[Claims] 1. An object lens, comprising: an erect prism for inverting an image formed by the objective lens to obtain an erect image; and an eyepiece for forming an erect image obtained by the erect prism. When the two directions orthogonal to the optical axis of the telescope optical system and intersecting each other are defined as first and second directions, the erecting prism is moved in the first and second directions. A prism holding mechanism that movably holds the erect prism, and a prism position adjusting mechanism that is provided in the prism holding mechanism and moves the position of the erect prism in the first and second directions in conjunction with a rotation operation of an adjusting jig. Binoculars comprising: a bearing means for rotatably supporting the adjustment jig when rotating the adjustment jig. 2. The prism holding mechanism includes a prism holder, an intermediate member, and a holding member. The prism holder is configured to hold the erect prism, and the intermediate member includes the prism. The holder is configured to be movable in the first direction and to be immovable in the second direction, and the holding member is configured to move the intermediate member in the second direction, and The binoculars according to claim 1, wherein the binoculars are configured to be supported so as not to move in one direction. 3. The intermediate member has a first guide portion, the prism holder has a first guided portion, and the first guide portion or the first guided portion extends in the first direction. The prism holder is supported by the intermediate member when the first guided portion is guided by the first guide portion, and the holding member has a second guide portion, and the intermediate member Has a second guided portion, the second guided portion or the second guided portion is provided extending in the second direction, and the holding member supports the intermediate member with the second guided portion. The binoculars according to claim 2, wherein the step (b) is performed by being guided by the second guide section. 4. The bearing means has a plate-like portion having a thickness, a jig insertion hole which penetrates in the thickness direction of the plate-like portion and allows the adjustment jig to be inserted, and A part of a hole edge of the hole has an arc shape bulging radially outward of the jig insertion hole from the center of the jig insertion hole and having an arc portion having a radius equal to or less than the radius of the jig insertion hole, 4. The binoculars according to claim 1, wherein the adjusting jig is rotatably supported by the arc portion during a rotation operation of the adjusting jig. 5. 5. The prism position adjustment mechanism is configured to engage with the adjustment jig, and a portion of the prism position adjustment mechanism that engages with the adjustment jig is formed by an exterior member forming an exterior of the binoculars. The binoculars according to any one of claims 1 to 4, wherein the binoculars are configured to be covered with respect to the outside. 6. An annular eyepiece member can be attached to and detached from the rear of the eyepiece when the object lens of the telescope optical system is located at the front and the eyepiece lens is located at the rear. 6. The binoculars according to claim 5, wherein the exterior member that is provided on the outside and covers a portion where the prism position adjustment mechanism engages with the adjustment jig to the outside is the eyepiece member. 7. 7. A portion where the intermediate member faces the prism holder is formed in a first plate-like portion having a thickness in the optical axis direction, and the first plate-like portion has a thickness in the thickness direction. A first hole having a circular shape penetrating therethrough is provided, and a portion of the prism holder facing the first hole is provided with a first long groove having a longitudinal direction in the second direction. The binoculars according to claim 2 or 3, wherein: 8. A portion where the holding member faces the intermediate member is formed in a plate-like second plate-like portion having a thickness in the optical axis direction, and the second plate-like portion has a thickness in the thickness direction. A penetrating second circular hole is provided, and a portion of the intermediate member facing the second hole is provided with a second elongated groove having a longitudinal direction in the first direction. The binoculars according to claim 2, 3, or 7. 9. The prism position adjustment mechanism is configured to engage with the adjustment jig, and the adjustment jig extends from a shaft-shaped main body and an axial end of the main body. An eccentric shaft portion having a central axis at a position eccentric from the central axis of the main body portion, and the prism position adjusting mechanism is constituted by a first long groove portion of the prism holder and a first hole of the intermediate member. The engagement of the adjusting jig with the prism holding mechanism is performed by inserting the eccentric shaft into the first elongated groove while the main body is inserted through the first hole.
The binoculars according to claim 7, wherein the binoculars are formed by abutting an outer peripheral surface of the eccentric shaft portion on two opposing side edges extending in a longitudinal direction of the long groove portion. 10. The prism position adjusting mechanism is configured to engage with the adjusting jig, and the adjusting jig extends from a shaft-shaped main body and an axial end of the main body. An eccentric shaft portion having a center axis at a position eccentric from the center axis of the main body portion, and the prism position adjusting mechanism is constituted by a second long groove portion of the intermediate member and a first hole of the holding member. The engagement of the adjusting jig with the prism position adjusting mechanism is performed by inserting the eccentric shaft portion into the second elongated groove portion with the main body portion being inserted through the second hole portion. 9. The binoculars according to claim 8, wherein the binoculars are formed by abutting an outer peripheral surface of the eccentric shaft portion on two opposing side edges extending in a longitudinal direction of the groove.