JP2001311878A - Binoculars - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binoculars capable of enhancing working efficiency by easily and accurately performing the positional adjustment of a roof prism. SOLUTION: A holder 306A holding 1st and 2nd prisms 306E and 306F constituting the roof prism is supported on a fine adjustment plate 306D to be movable in a vertical direction but not to be movable in a horizontal direction. The plate 306D is supported on a right moving body 303 to be movable in the horizontal direction but not to be movable in the vertical direction. By using a jig, the holder 306A is moved in the vertical direction on the plate 306D, and the plate 306D is moved in the horizontal direction on the right moving body 303, so that the position of the roof prism is adjusted.

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 a roof prism to obtain an erect image.

[0002]

2. Description of the Related Art A left and right telescope optical system having an objective lens, a roof 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 roof prism is provided. There are binoculars configured with.
In the left and right telescope optical systems, the image formed by the left and right eyepieces can be viewed by the left and right eyes, that is, within the visual field of the left and right eyes, with respect to the optical axis of the telescope optical system of the roof prism. The vertical and horizontal positions are adjusted so as to fall within a predetermined allowable range according to the magnification of the telescope optical system.

[0003]

However, in the conventional binoculars, an adjusting mechanism for adjusting the position of the roof prism is not particularly provided, and the positioning operation of the roof prism requires skill, requires a long operation time, and has a low work efficiency. It has become. The present invention has been devised in view of the above circumstances,
An object of the present invention is to provide binoculars capable of improving work efficiency by easily and accurately adjusting the position of a roof prism.

[0004]

SUMMARY OF THE INVENTION The present invention provides an objective lens, a roof 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 roof prism. The left and right telescope optical systems each having a lens, and the first and second directions of the prism when two directions orthogonal to the optical axis of the telescope optical system and intersecting each other are defined as first and second directions. An optical adjustment mechanism configured to adjust the position in two directions. Therefore, the position of the roof prism in the first and second directions with respect to the optical axis of the telescope optical system can be easily and surely adjusted by the optical adjustment mechanism. In this way, the roof prism can be positioned and work efficiency can be improved.

In the present invention, the first and second directions may be orthogonal to each other. Also,
According to the present invention, one of the first and second directions is a vertical direction, and the other of the first and second directions is a horizontal direction. Further, according to the present invention, the optical adjustment mechanism includes a prism holder, an intermediate member, and a holding member, wherein the prism holder is configured to hold the roof prism, and the intermediate member includes the prism holder. It is configured to be movable in a first direction and to be immovable in the second direction, and the holding member is configured to be able to move the intermediate member in the second direction and in the first direction. The prism holder and the intermediate member may be configured to be immovably supported, and may be fixed to the holding member. Also, in the present invention, a portion where the intermediate member faces the prism holder is formed in a plate-shaped first plate-shaped portion having a thickness in the optical axis direction, and the first plate-shaped portion has a thickness direction. A first circular hole that penetrates the first hole is provided, and a portion of the prism holder facing the first hole is provided with a first elongated groove having a longitudinal direction in the second direction. A first shaft portion rotatably provided about the center of the first hole portion in a state inserted into the hole portion, and the first elongated groove extending from an axial end of the first shaft portion; A first adjusting member having a second shaft portion extending in the longitudinal direction of the first elongated groove portion and inserted into the portion, the outer peripheral surface of which being in contact with two side edges facing each other; Wherein the second shaft portion is configured to have a center axis at a position eccentric from the center axis of the first shaft portion, and the prism The movement of the rudder in the first direction with respect to the intermediate member is such that the first shaft portion is inserted into the first hole, and the outer peripheral surface of the second shaft portion is on two sides of the first long groove portion. The first adjustment member may be configured to be rotated by rotating the first adjustment member in a state where the first adjustment member is in contact with an edge portion, and the first adjustment member may be configured to be detachable from the intermediate member and the prism holder. it can. Further, in the present invention, a portion where the holding member faces the intermediate member is formed in a plate-shaped second plate-shaped portion having a thickness in the optical axis direction, and the second plate-shaped portion has a thickness direction. A second hole having a longitudinal direction in the first direction is provided in a portion of the intermediate member facing the first hole; A third shaft portion rotatably provided about the center of the second hole portion while being inserted into the hole portion, and the second elongated groove extending from an axial end of the third shaft portion; A second adjusting member having a fourth shaft portion extending in the longitudinal direction of the second elongated groove portion and inserted in the portion and having an outer peripheral surface abutting on two opposing side edges. The fourth shaft portion is configured to have a center axis at a position eccentric from the center axis of the third shaft portion, and the holding portion of the intermediate member In the movement in the second direction, the third shaft portion is inserted through the second hole, and the outer peripheral surface of the fourth shaft portion abuts on two side edges of the second long groove portion. The second adjustment member is configured to be rotated by rotating the second adjustment member in a state in which the second adjustment member is rotated, and the second adjustment member can be configured to be detachable from the holding member and the intermediate member. Further, the present invention is configured such that a portion of the second plate-shaped portion of the holding member faces the first hole of the intermediate member, and a portion of the second plate-shaped portion has the first hole. An opening formed by an edge surrounding the hole edge of the portion is formed so as to penetrate in a thickness direction of the second plate-shaped portion, and the first hole of the first shaft portion of the first adjusting member is formed. And the insertion of the second shaft portion into the first long groove portion can be performed through the opening. Also,
In the present invention, the diameter of the first hole and the diameter of the second hole are the same,
In addition, the size between the two side edges of the first long groove and the size between the two side edges of the second long groove are configured to be the same, and the first and second adjustment members are shared. It can be configured to be able to.

[0006]

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

First, the overall structure of the binoculars will be described with reference to FIGS. In the following description, the left and right directions of the binoculars are defined such that the side of the binoculars where the objective lens is provided is the front, and the side where the eyepiece is provided is the rear. The binoculars 1000 include the support unit 100,
The optical system includes an optical adjustment unit 200, a right mirror 300, and a left mirror 400. The support unit 100 is provided between and supports the right mirror 300 and the left mirror 400 each having a telescope optical system. A diopter makeup ring 106 that is operated when performing diopter adjustment is attached to the support unit 100, and the optical adjustment unit 2 provided on the support unit 100 is mounted on the support unit 100.
Reference numeral 00 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 and the right eyepiece tube 304 that hold the eyepiece and the erect prism 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.

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 front, 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. 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, FIG. 25 is a side view of the holder showing FIG. 22 as viewed from arrow B2, and FIG. 26 is a rear view of the fine moving plate. 27 is a plan view of the left moving body, FIG. 28 is a front view of the left moving body showing FIG. 27 as viewed from the direction of arrow C1, and FIG. 29 is a left moving body of FIG. FIG. 30 is a rear view of the left moving body, showing a state where FIG. 27 is viewed from the arrow C3.

First, referring to FIGS. 7 to 11, the configuration of the support section and the optical adjustment section will be described. 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 extends on the front edge of the extension 109B of the right interlocking plate 109, and extends in the left-right direction on the rear edge of the extension 110B of the left interlocking plate 110. Existing racks 110B2 are formed. The right interlocking plate 109 has guide grooves 109A1, 1
09A2 and 109B1 are convex portions 102A1 to 102A3.
While the projections 102A1 to 102A3
Screw through a washer 801 in a screw hole provided in
2 is attached to the support plate 102 by being screwed, and is supported movably in the left-right direction.

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

The bottom cover 103 has a rectangular plate shape, and its longitudinal direction is disposed above the support plate 102 along the front-back direction. The bottom lid 103 has an extension 109B of the right interlocking plate 109 and a left interlocking plate 11
0 is positioned on the support plate 102 with the extension portion 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, projecting 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 mesh 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 pitches of the teeth of the rack 110B2 and the gear 105 are the same, the right interlocking plate 109 and the left interlocking plate 110 move by the same distance in the left and right direction about the rotation center of the gear 105. It has become.

A through hole 103G is provided at a position between the left and right convex portions 103B near the front side of the bottom lid 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 abutting the circumferential end of the concave groove 106E of 06E. 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, but the axial direction of the shaft portion 106B. Are configured to be movable with respect to each other.

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. 8, 9 and 16, the main body 101 has a rectangular front wall 101A and a rear wall 101A.
B, a rectangular right wall 101C and a left wall 101D connecting the right and left portions of the front wall 101A and the rear wall 101B. The top and bottom of the main body 101 are opened in a rectangular shape. The main body 101 has a rectangular front wall 101.
A and rear wall 101B, front wall 101A and rear wall 101B
And a rectangular right wall 101C and a left wall 101D that connect the right and left sides of the right side. The upper and lower parts 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 connected to the support plate 102.
The four screw holes 101E formed in the lower four corners of the main body 101 through the four screw insertion holes 102G formed in the main body 101.
Respectively. The upper plate 104 supports the support plate 10.
It has a rectangular plate shape approximately the same size as 2 and is attached so as to cover the upper part of the main body 101. That is, four screws 80
7 are four screw insertion holes 104 formed in the upper plate 104.
A is inserted and screwed into four screw holes 101F formed at the four lower corners of the main body 101, respectively. Upper plate 10
At the rearward position on the center line in the left-right direction of No. 4, openings 104B, 10B, 10C, 10C, 10F, 10C, 10C, 10D, 10F, 10C, 10D, 10D, 10D, 10D, 10D
4C is provided.

The front face of the front wall 101A and the rear face of the rear wall 101B of the main body 101 are respectively provided with rectangular decorative boards 10A.
1I, 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.

Next, the configuration of the optical adjustment unit 200 will be described. The optical adjustment unit 200 includes a main shaft 201, a focus adjustment ring 202, a zoom adjustment ring 204, a movement shaft 206, a cam ring 207, a first lens frame 208, a second lens frame 209, a cam frame 210, It is configured to include frame guide shafts 211 and 212, a first lens interlocking plate 213, a second lens interlocking plate 214, a holding plate (blade) 215, a mirror interlocking shaft 216, and the like.

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 a bearing portion provided on the rear wall 101B. 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 formed in the shape of a cylindrical wall having a thickness in the axial direction and the circumferential direction. In the hole 207A, a ridge 207B fitted into the above-described concave groove 201A of the main shaft 201 extends along the axis. The main shaft 20 is formed on the inner peripheral surface 207A.
1 can be moved along the spindle 201 in a state where it is inserted,
Further, the main shaft 201 is supported by the main shaft 201 so as not to rotate in the circumferential direction. Outer peripheral surface 207C of cam ring 207
Have two first cam grooves 207D and two second cam grooves 2
07E is formed.

The moving shaft 206 is formed between a cylindrical first shaft 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
In the inner peripheral surface 202A1, a holding portion 202A11 for holding the two balls 203 engaged with the guide groove 206A1 so as to be able to rotate and not to move around the axis is provided at a position facing each other about the axis. Have been.

The cam frame 210 has a substantially annular shape, and the inside of the cam frame 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. Further, screw holes 210C11 and 210C21 facing rearward are provided at rear ends of the right arm portion 210C1 and the left arm portion 210C2 of the annular portion 210A of the cam frame 210. Also, in the portion facing the rear of the connecting arm 210D,
A screw hole (not shown) facing rearward is provided. As shown in FIG. 11, the screw insertion holes 206C1, 206C2, and 206C3 provided on the flange portion 206C of the moving shaft 206 are inserted into the screw holes 210C11 and 210C21 and the screw hole (not shown) facing rearward. Screw 8
The cam frame 210 is attached to the moving shaft 206 by screwing the respective screws 09. Furthermore, a screw hole 210D1 facing downward is provided at the rear end of the connecting arm 210D.
Is provided. As shown in FIGS. 9, 10, and 11, the flange portion 206 of the moving shaft 206 is also provided.
From the right and left edges of C, the convex portions 206C4 and 20C are respectively provided.
6C5 protrudes. 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. Convex part 206 of moving shaft 206
C4 and 206C5 are the guide grooves 10 of the main body 101, respectively.
1C11 and 101D11, the movable shaft 20 is slidably supported in the axial direction while being movably supported.
6 and cam frame 210 are in the axial direction of spindle 201 (front-back direction)
, And supported so as not to rotate around the axis. Then, each of the convex portions 206C1, 2C2
06C2 comes into contact with the steps 101C12, 101D12 provided on the front side of the guide grooves 101C11, 101D11, whereby the front position of the moving shaft 206 is regulated, and each of the projections 206C4, 206C5 is attached to the first housing 10 of the main body 101.
The rear position is regulated by contacting the rear wall portion 101G1 of 1G. Hole 2 of cam ring 207
The second shaft portion 206B of the moving shaft 206 is inserted through 07A, and the cam ring 207 is rotatably supported by the second shaft portion 206B. Then, the cam frame 210 is mounted on the cam ring 2.
07 with the flange 206 of the moving shaft 206 accommodated.
C is attached to the cam frame 210 with three screws 809.
And the moving shaft 206 are integrally fixed.

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 extending in the axial direction, that is, in 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. In addition, guide portions 101C2 formed of a ridge extending in the axial direction, that is, in parallel with the optical axis direction, are provided at portions facing the lower edge of the right wall 101C and the lower edge of the left wall 101D of the main body 101, respectively. 101D2 are provided at intervals in the left-right direction. These two guides 101C
Reference numeral 2, 101D2 supports first and second lens connecting members 213, 214 described below so as to be movable in the optical axis direction and immovable in a direction orthogonal to the optical axis direction. Further, the first lens piece 208 has a holding portion (spherical concave portion) that holds the two balls 210B engaged with the first cam groove 207D of the cam ring 207 so as to be able to rotate between itself and the first cam groove 207D. ing. On the other hand, the second lens piece 209 is
There is a holding portion for holding the two balls 210B engaged with the second cam groove 207E of the cam ring 207 so as to be able to rotate between the two balls 210B with 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 of the cam ring 207,
207E rotates with respect to the cam frame 210. By this rotation, the first lens piece 208 and the second lens piece 209
Moves in the cam frame 210 along the axial direction. Here, the first lens frame 208 and the second lens frame 209 are
The cam ring 207 is supported and arranged so as to sandwich the cam ring 207 at the left and right portions in the cam frame 210, and moves in opposite directions along the optical axis direction. As a result, the first lens piece 208 and the second lens piece 209 in the optical axis direction The moving ranges are configured to overlap each other. A mounting portion 208A having a screw hole extending in the vertical direction is provided at a position facing the lower portion of the lower portion of the first lens piece 208, and the mounting portion 208A is engaged with the frame engaging portion 213C of the first lens interlocking plate 213. In this state, it is attached by a screw 811. A mounting portion 209A having a screw hole extending in the vertical direction is provided at a position facing the lower part of the lower part of the second lens piece 209, and the mounting part 209A is engaged with the frame engaging part 214C of the second lens interlocking plate 214. In this state, it is attached by a screw 812.

The holding plate 215 has a rectangular plate shape and is provided with a hole 215B penetrating in the thickness direction. The screw 810 inserted through the hole 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 203. 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.

The first lens interlocking plate 213 includes a holding plate 215
And a rectangular plate-shaped main body 213A that is supported so as to be movable in the front-rear direction while being sandwiched between the main body 101 and the bottom wall of the main body 101; An arm 213B extending left and right and a frame engaging portion 213C extending forward from the front edge of the main body 213A and engaging with the first lens frame 208 and attached with a screw 811 are provided. A concave groove 213D is formed at the right end and the left end of the engaging arm 213B along the extending direction of the arm. These two long grooves 213D have right and left telescope optical systems described later. The first lens portions 307 and 407 are engaged so as to be movable in the left-right direction.

The second lens interlocking plate 214 is supported between the main body 214A of the first lens interlocking plate and the bottom wall of the main body 101 so as to be movable in the front-rear direction.
An engagement arm portion 214B linearly extending left and right from the left and right edges of the main body 214A to the outside of the holding plate 215;
A frame engaging portion 214 </ b> C extending forward from the front edge of 14 </ b> A and engaging with the second lens frame 209 and attached with a screw 812 is provided. The right and left ends of the engaging arm 214B are provided with concave grooves 214D along the extending direction of the arm.
The second lens portions 308 and 408 of the right and left telescope optical systems, which will be described later, are engaged with these two long grooves so as to be movable in the left-right direction.

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 (corresponding to the holding member in the claims) and the left moving body 40
3 (corresponding to a holding member in the claims) is provided with engaging portions 303A1 and 403A1 that are movably engaged with the lens body interlocking shaft 216 in the axial direction thereof.
The left moving body 03 and the left moving body 403 are supported so as to be movable in the left-right direction along the lens body interlocking shaft 216, and are configured to move in the front-rear direction integrally with the lens body interlocking shaft 216.

The main body 101 accommodates a first accommodation portion 101G for supporting the focus adjustment ring 202 rotatably and immovably in the axial direction in a state where the focus adjustment ring 202 is accommodated, and a state in which a zoom adjustment ring 204 is accommodated. This zoom adjustment ring 20
4 for supporting the rotatable member 4 rotatably and immovably in the axial direction.
An accommodation portion 101H is formed. First storage unit 101
G is sandwiched between the front wall portion 101G1 and the rear wall portion 101G2, and the second housing portion 101H is formed of the wall portion 101G.
It is configured to be sandwiched between the G2 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 frame 20 engaged with each ball 210B
8 and the second lens piece 209 are linked with the shafts 211 and 21 in association with the rotation of the first and second cam grooves 207D and 207E, respectively.
2 and is moved along the axial direction of the main shaft 201. At this time, the first lens frame 208 and the second lens frame 2
09 moves in 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 ball 203 engaged with the main body 202A of the focus adjustment ring 202 is not moved in the axial direction of the main shaft 201, and rotates in the direction around the axis while being engaged with the guide groove 206A1 of the moving shaft 206. 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, when the ball 204B moves in the range of the first groove 206A21 and when the ball 204B moves in the range of the second groove 206A12, the moving shaft 206 and the cam for the same rotation angle of the focus adjustment ring 202 are moved. The moving amount of the frame 210 is
The former is larger than the latter. this is,
In the former range, a part of the mirror body is collapsed, and in the latter range,
This is for fine adjustment of the distance of the eyepiece to the objective lens, that is, fine adjustment of the focus.

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

As shown in FIG. 5, the right body 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 lens body 300 will be described briefly. A right frame cover 302 attached to a right frame 301, a right objective unit 305, and a right exterior unit 3
Reference numeral 10 is attached to the above-described right interlocking plate 109 (see 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 structure 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 right frame 301 is provided with a left guiding shaft 30
A holding portion 301E for holding the rear portion of 1D is provided (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,
The guide shaft 301A is held by the front portion of the guide shaft 301A being sandwiched between the head of the screw 814 screwed into the screw hole 301F and the right wall.

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

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 has an opening 310
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 difference eccentric seat 107 is rotated, the diopter difference eccentric seat 1 is eccentrically rotated.
Each engagement wall portion 305A41 comes into contact with the outer peripheral surface of the reference numeral 07 and is moved in the front-rear direction. That is, when the diopter difference eccentric seat 107 is rotated, the right objective frame 305A is integrated with the guide shafts 301A and 301D.
It is designed to be moved back and forth along the 1D axis direction (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 portion 303D through which the guide shaft 301A is inserted is provided at the right edge of 03A, and a bearing portion 303E comprising a through hole through which the guide shaft 301D is inserted is provided below the side wall 303B.
Is provided. Therefore, the right moving body 303 has the bearing portions 303D and 303E,
By being guided by 01D, it is held movably in the front-back 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.

As shown in FIGS. 19 and 21, the rear wall 303B has screw insertion holes 303F, 303 at the upper left and lower right 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 right 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,
A slot-like opening 303I (corresponding to an opening in the claims) 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 is provided with a fine moving plate 306 described later.
D, which faces the jig guide hole 306D8,
It has an edge surrounding the edge of the hole of 6D8.

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 (dach prism) 306F, and the like. As shown in FIG. 22 to FIG.
06A is a first prism 306E and a second prism 306E.
Top wall 306A1 and bottom wall 306A2 that hold the top and bottom surfaces of F, top wall 306A1 and bottom wall 306A2
And a rectangular rear wall 306A3 for connecting the rear edge of the main body.

The first prism 306E and the second prism 30
Reference numeral 6F denotes a roof prism according to the present invention, which is configured so that light beams pass in this order. The exit surface of the first prism 306E and the second prism 30
The upper wall 306A1 and the bottom wall 306A of the holder 306A in a state where the intermediate plate 306B is disposed between the intermediate plate 306B and the entrance surface of the holder 6F.
2 and fixed. The holder lid 306C is
Top wall 306A1 and bottom wall 306A2 of holder 306A
Right and left side walls 3 erected rearward from the left and right edges of the front wall 306C1 and the front wall so as to connect the front edge and the side edge of the front wall.
06C2, 306C3, and the first prism 30
An opening 306C11 through which light passes is provided in the front wall 306C1 facing the incident surface of 6E.

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. 23, 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 the 306A36 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 moving plate 306D, but the first and second prisms 306 held by the holder 306A are provided.
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, 306A34, 306A35, 30 of the holder 306A are provided.
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 between 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-described configuration, the jig guide hole 306D8 of the fine moving plate 306D and the holder 306A 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. 31 is a structural view 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. 31 (A) is a jig. FIG. 31B is a plan view of the jig. The jig 10
It has a cylindrical first shaft portion 12 and a cylindrical second shaft portion 14 extending from an end 12A of the first shaft portion 12 in the longitudinal direction of the first shaft portion 12. The diameter of the first shaft portion 12 is such that the first shaft portion 12 can rotate around its central axis without rattling in a state where the first shaft portion 12 is inserted through the jig guide holes 303H and 306D8 described above. It is set to be. Second
The diameter of the shaft portion 14 extends in the longitudinal direction in a state where the second shaft portion 14 is inserted into the jig engaging long grooves 306A38 and 306D7, and its outer peripheral surface abuts two opposing side edges. It is set as follows. And the second shaft portion 14
The central axis is provided so as to be at a position eccentric with respect to the central axis of the first shaft portion 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. 18 to 26 and FIG. A description will be given with reference to FIG. 32 showing the positional relationship between the fine movement plate, the holder, and the jig. FIG. 32 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. Then, the first
The second shaft portion 14 eccentric to the shaft portion 12 moves around the center of the jig guide hole 306D8 in a state where the outer peripheral surface thereof is in contact with the side edge portion of the jig engaging long groove 306A38. , The holder 30 supported so as to be movable in the vertical direction with respect to the fine movement plate 306D and not movable in the horizontal direction.
6A is moved only in the vertical direction with respect to fine movement plate 306D. Here, since fine movement plate 306D is immovably supported in the vertical direction with respect to right moving body 303, holder 30
6A is moved only in the vertical direction with respect to the right moving body 303. Since the second shaft portion 14 moves within the jig engaging long groove 306A38 extending in the left-right direction, no force in the left-right direction is applied to the holder 306A.

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. Then, the jig guide hole 3 is held in a state where the second shaft portion 14 eccentric to the first shaft portion 12 has its outer peripheral surface abutted on the side edge of the jig engaging long groove 306D7.
By moving about the center of 03H, the fine moving plate 306D supported to be movable in the left-right direction with respect to the right moving body 303 and immovable in the vertical direction is moved to the right moving body 30.
3 is moved only in the left-right direction. Here, since the holder 306A is supported immovably in the left-right direction with respect to the fine moving plate 306D, the holder 306A is
3 is moved only in the left-right direction. The second shaft portion 14 is provided with the jig engaging long groove 3 extending in the vertical direction.
Since it moves within 06D7, no vertical force is applied to fine movement plate 306D. In addition, the concave portion 306A37 of the rear wall 306A3 of the holder 306A has a function of accommodating the tip of the second shaft portion 14 of the jig 10 inserted into the jig engaging long groove 306D7 of the fine movement plate 306D.

After the position adjustment in the horizontal direction and the vertical 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 can be
The position of the roof prism 6A, that is, the roof prism composed of 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 roof prism can be easily positioned by the jig 10, skill is not required for adjustment work unlike the related art, the work time is reduced, and the work efficiency can be improved. Further, since the amount of movement of the second shaft portion 14 due to the rotation of the jig 10 is small, the holder 306A and the fine moving plate 306D
There is also an effect that the movement in the vertical and horizontal directions can be easily adjusted by a small amount. In this example, the jig guide hole 3
03H and the jig guide hole 306D8 have the same diameter,
By setting the distance between the two side edges of the jig engaging long groove 306A38 and the distance between the two side edges of the jig engaging long groove 306D7 to be the same, the adjustment can be performed by the same jig 10. did. However, the diameter of each jig guide hole,
The intervals of the jig engaging long grooves may be made different from each other and adjusted by different jigs. In this example, the jig 10 is moved to the right moving body 303, the holder 306A, and the fine moving plate 30.
Although the jig 10 is configured to be detachable from the 3D, a configuration in which the jig 10 is incorporated in the right moving body 303, the holder 306A, and the fine moving plate 303D can also be adopted. Further, in this example, the position adjustment in both the vertical direction and the horizontal direction is performed by the jig 10, but only the position adjustment in one of the directions may be performed.

Next, the structure of the rear part of the right moving body 303 from the rear wall 303B 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 3B3 in the thickness direction. The right eyepiece 304 includes a bottom wall 304A and a bottom wall 3
The right side wall 304B, the left side wall 304C, and the rear side wall 304D which are respectively erected from the right edge, the left side edge, and the rear side edge of 04A, and the upper wall 304E which connects the upper portions of the right side wall 304B, the left side wall 304C, and the rear wall 304D. It is configured. Bottom wall 3
04A, the right wall 304B, the left wall 304C, and the front edge of the upper wall 304E are configured such that the rear wall 303B of the right moving body 303 is fitted thereto, and the bottom wall 304A, the right wall 304
B, a screw insertion hole 304F is provided at a position near the front edge of the upper wall 304E. And three screws 8
18 is screwed into a screw hole 303B31 formed in each protruding piece 303B3 of the rear wall 303B via each screw insertion hole 304F, so that the rear wall 303B of the right moving body 303 becomes a right eyepiece 3
04. Therefore, the right eyepiece 304 and the prism unit 306 are integrally fixed to the right moving body 303, and the right eyepiece 304, the prism unit 306, and the right moving body 303 are moved with respect to the right frame 301 and the objective unit 305. Thus, it is provided movably in the optical axis direction along the guide shafts 301A and 301D.

The 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 308A2, the engaging convex portion 308 engaging with the concave groove 214D provided on the right arm 214B of the second lens interlocking plate 214 is provided.
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
A hole that penetrates through the rear wall 304D in the thickness direction of the rear wall 304D is formed in the rear wall 304D, and a female screw is formed on an inner peripheral portion of the hole to provide a mounting portion 304D1. And
An eyepiece frame 309 is attached to the female screw of the mounting portion 304D1.
The male screw 309A2 formed on the outer peripheral portion of A is screwed together, so that the eyepiece frame 309A is attached to the mounting portion 304D1.

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

Further, a portion of the first lens frame 307A near the front of the engagement arm 307A2 and the second lens frame 308A
The portion from the front of the engaging arm portion 308A2 extends forward from the front edge of the bottom wall 304A of the right eyepiece 304. 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 including the lens 308 and the third lens 309 is changed.
That is, in this telescope optical system, the objective lens is constituted by the objective lens 305C, and the eyepieces are the first lens 307, the second lens 308, and the third lens 3.
09. Then, the magnification of the telescope optical system is changed by moving the first lens 307 and the second lens 308 of the eyepiece in the direction of coming and going in the optical axis direction.

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

The first holding portion 405A2 is provided with a guide shaft 401A.
Is movably held in the axial direction. A bearing hole 405A31 is provided in the second holding portion 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, of the components constituting the left lens body 400, a configuration for adjusting the position of the roof prism in the vertical and horizontal directions will be described. Right mirror body 3 mentioned above
Similar to 00, a mechanism for adjusting the position of the roof prism is also provided in the left mirror 400. That is, FIG.
33, the left moving body 403 is configured to be substantially symmetrical to the right moving body 303, but the screw insertion holes 403F provided in the rear wall 403B are provided.
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.

The fine moving plate 406D is located on the right side of the fine moving plate 3.
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. Also, the left moving body 403, the holder 406A, the fine moving plate 406D
Since the positional relationship and the position adjusting operation by the jig are the same as those in the right mirror, detailed description thereof will be omitted. Also, the operation and effect of the optical adjustment mechanism for adjusting the position of the roof 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, When the focus adjustment ring 202 and the zoom adjustment ring 204 are rotated by any of the index finger or the middle finger of the left hand, there is an advantage that the rotation operation can be easily performed by either the right hand or the left hand. When the focus adjustment ring 202 is rotated in a predetermined direction by a finger,
Arm 20 extending in the axial direction integrally with main body 202A
2A1 is rotated, and the hole-shaped engaging portion 20 of the arm 202A1 is rotated.
The guide groove 2 in which the ball 203 engaged with 2A11 is formed in the first shaft portion 206A of the moving shaft 206 into a double thread shape.
It moves along 06A1. Convex portions 206C4, 2C2 provided on the right and left sides of the flange portion 206C of the moving shaft 206.
06C5 is a right wall 101C and a left wall 101D of the main body 101.
Guide groove 101C1 extending in the front-rear direction
1, 101D11. And each convex part 206C4, 206C5 is stepped part 101C12, 101D.
12, the front position of the moving shaft 206 is regulated, and the position is regulated by the protrusions 206C4 and 206C5 abutting on the rear wall portion 101G1 of the main body 101.
In addition, the ball 203 has the first groove portion 206A1 having a wide pitch.
1, the moving amount of the moving shaft 206 is larger than the rotating amount of the focus adjustment ring 202, and the ball 2
03 moves to the second groove portion 206A12 having a narrow pitch, the moving axis 2
06 becomes smaller.

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

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 prism unit 30
The focus adjustment is performed by moving the first lens 307C, the first lens 307B, the second lens 308C, and the third lens 309C in the direction of moving toward and away from the objective lens 305C. Left mirror 400
It goes without saying that the same focus adjustment operation is performed at the same time.

The magnification adjustment is performed by rotating the zoom adjustment ring 204. That is, the zoom adjustment ring 2
04, the main shaft 201 is rotated and the cam ring 2 is rotated.
07 rotates with respect to the cam frame 210. Then, the first lens frame 20 engaged with the first cam groove 207D and the second cam groove 207E of the cam ring 207 via the ball 210B.
8. The second lens piece 209 is moved in the opposite direction. As a result, the first lens link plate 213 and the second lens link plate 214 attached to the first lens piece 208 and the second lens piece 209 are engaged with the first lens link plate 213 and the second lens link plate 214. The first lens frame 307A, the second
The lens frame 308 </ b> A is moved in a direction in which the lens frame 308 </ b> A approaches and separates from each other in conjunction with the first lens frame 208 and the second lens frame 209. That is, the first lens 307B and the second lens 308
When the lenses C contact and separate from each other, the objective lens 305C, the prism unit 306, the first lens 307B, and the second lens 308
C, the magnification of the telescope optical system constituted by the third lens 309C is changed. 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. The first and second adjusting members of the present invention are configured by the jig 10, and the first and third shaft portions of the present invention are formed by the first shaft portion 12 of the jig 10. The second shaft portion 14 and the second shaft portion 14 of the present invention are respectively constituted by. In the present embodiment, notch 306D3 of fine movement plate 306D, long groove 306
D4, 306D5, 306D6, convex ridges 306A33, 306A34, convex 306A35, 3 of holder 306A
06A36, steps 303B5, 303 of the right moving body 303
B6, upper edge 306D91 of fine movement plate 306D, lower edge 306
D92 and the jig 10 constitute the optical adjustment mechanism of the present invention.

[0096]

The present invention has an objective lens, a roof 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 roof prism. When the left and right telescope optical systems and two directions orthogonal to the optical axis of the telescope optical system and orthogonal to each other are defined as first and second directions, the position of the prism in the first and second directions And an optical adjustment mechanism that is configured to adjust. Therefore, the position of the roof prism in the first and second directions with respect to the optical axis of the telescope optical system can be easily and surely adjusted by the optical adjustment mechanism. In this way, the roof prism can be positioned and work efficiency can be improved.

[Brief description of the drawings]

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

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

FIG. 3 is an external view showing a state in which a right eyepiece and a left eyepiece are opened and a right eyepiece and a left eyepiece are protruded in the embodiment of the binoculars of the present invention, and FIG. FIG. 3 (B)
3A is a front view showing a 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. 4) is a side view as viewed 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 configuration diagram of a jig for moving the positions of a holder and a fine movement plate. FIG. 31 (A) is a front view of the jig,
FIG. 31B is a plan view of the jig.

FIG. 32 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.

[Explanation of symbols]

 1000 binoculars 300 right mirror 303 right moving body 306D fine moving plate 306A holder 306E first prism 306F second prism 400 left mirror 403 left moving body 406D fine moving plate 406A holder 406E first prism 406F second prism

Claims (11)

[Claims] 1. A left and right telescope optical system including an objective lens, a roof prism for inverting an image formed by the objective lens to obtain an erect image, and an eyepiece for observing the erect image obtained by the roof prism. And adjusting the position of the roof prism in the first and second directions when two directions orthogonal to the optical axis of the telescope optical system and intersecting with each other are defined as first and second directions. A binocular comprising: an optical adjustment mechanism configured to: 2. The optical adjustment mechanism includes a prism holder, an intermediate member, and a holding member. The prism holder is configured to hold the roof prism, and the intermediate member holds the prism holder in the first position. The holding member is configured to be movable in one direction and to be immovable in the second direction, and the holding member holds the intermediate member in the second direction.
2. It is configured to be supported so as to be movable in the first direction and immovable in the first direction.
Binoculars as described. 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 binoculars according to claim 2, wherein the prism holder is supported by the intermediate member when the first guided portion is guided by the first guide portion. 4. The holding member has a second guide portion, the intermediate member has a second guided portion, and the second guide portion or the second guided portion extends in the second direction. 4. The binoculars according to claim 2, wherein the intermediate member is supported by the holding member when the second guided portion is guided by the second guide portion. 5. 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, 3, or 4. 6. A first shaft portion rotatably provided around the center of the first hole portion while being inserted through the first hole portion, and an axial end of the first shaft portion. And a second shaft portion extending in the longitudinal direction of the first long groove portion and inserted into the first long groove portion so that an outer peripheral surface thereof abuts two opposing side edges. 6. The binoculars according to claim 5, wherein a first adjustment member having a first axis is provided, and the second axis is configured to have a center axis at a position eccentric from a center axis of the first axis. . 7. The movement of the prism holder in the first direction with respect to the intermediate member is performed by the first shaft portion having the first shaft portion.
This is performed by rotating the first adjustment member in a state where the first adjustment member is inserted into the hole and the outer peripheral surface of the second shaft portion is in contact with two side edges of the first long groove portion. The binoculars according to claim 6, wherein the binoculars are configured. 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 first hole is provided with a second elongated groove having a longitudinal direction in the first direction. Claims 2 to 7
The binoculars according to any one of claims 1 to 4. 9. A third shaft portion rotatably provided about the center of the second hole portion while being inserted through the second hole portion, and an axial end of the third shaft portion. And a fourth shaft portion extending in the longitudinal direction of the second long groove portion and inserted in the second long groove portion so that the outer peripheral surface thereof abuts on two opposing side edges. 9. The binoculars according to claim 8, wherein a second adjustment member having a third axis is provided, and the fourth axis has a center axis at a position eccentric from the center axis of the third axis. . 10. The movement of the intermediate member in the second direction with respect to the holding member is such that the third shaft portion is inserted into the second hole, and the outer peripheral surface of the fourth shaft portion is the second shaft portion. The binoculars according to claim 9, wherein the second adjusting member is configured to rotate when the second adjusting member is rotated while being in contact with two side edges of the two long grooves. 11. The binoculars according to claim 1, wherein the first and second directions are directions orthogonal to each other.