JP2002350700A - Optical equipment and its adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To actualize simple and easy lens position adjustment with high precision by simple constitution. SOLUTION: A lens holding frame 11 is assembled and arranged on a frame member 10 movably in a plane nearly perpendicular to an optical axis and 1st and 2nd eccentric pins 12 and 13 for X-axial adjustment and 3rd and 4th eccentric pins 14 and 15 for Y-axial adjustment are assembled between the frames 11 and 10 so that they can freely be rotated. The lens holding frame 11 has its position adjusted along the X axis by rotating the 1st and 2nd eccentric pins 12 and 13 and its Y-axial movement and turning are restricted and adjusted by the operation of the 3rd and 4th eccentric pins 14 and 15, etc., and further the lens holding frame has its position adjusted along the Y axis by rotating the 3rd and 4th eccentric pins 14 and 15 and also its X-axial movement and turning are restricted and adjusted through the operation of the 1st and 2nd eccentric pins 12 and 13, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device having a lens, such as a camera and an observation device, and an adjusting device therefor.

[0002]

2. Description of the Related Art Generally, in an optical apparatus, a plurality of lens groups constituting an optical system are accommodated and arranged in a lens holding frame, and the lens holding frame is positioned and assembled with a frame member. It is attached to a lens barrel of an optical device such as a camera. Such an optical system is required to accurately determine the relative positions of a plurality of lens groups in order to sufficiently exhibit its performance. For this reason,
2. Description of the Related Art Conventionally, various lens adjustment techniques for performing accurate position adjustment of a plurality of lens groups have been proposed.

[0003] As such a lens adjustment technique, for example, a lens holding frame in which a lens group is assembled is accommodated and arranged with a predetermined gap with respect to a frame member. There are various methods of adjusting the position in a plane perpendicular to the axis, and positioning and fixing the lens holding frame after the adjustment by, for example, bonding the lens holding frame to a frame member.

Japanese Patent Application Laid-Open No. H11-271587 proposes a technique in which two eccentric pins are provided, and the eccentric pins are rotated to perform adjustment in two directions substantially orthogonal to each other. I have.

However, in the former method, the adjustment can be performed with a simple configuration, but the degree of freedom in the adjustment direction of the lens holding frame is large, and some adjustment machine is required to perform the precise adjustment. The workability was not good.
Further, according to this, since the lens holding frame is adjusted and then fixed to the frame member by bonding or the like, there is a possibility that the optical axis may be displaced during this fixing operation.

In the latter technique disclosed in Japanese Patent Application Laid-Open No. 11-271587, when one of the two eccentric pins is operated, the lens holding frame is centered on the other eccentric pin. Is rotated, it is difficult to perform highly accurate adjustment.

[0007]

As described above, in the conventional optical apparatus, it is very troublesome to adjust the position of the lens mounted on the lens holding frame, and it takes much time for the adjustment. Have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides an optical apparatus having a simple configuration and capable of easily and easily achieving high-precision lens position adjustment, and an adjustment apparatus therefor. The purpose is to do.

[0009]

According to the present invention, there is provided a lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and a first member movably provided at a first position. And a second adjusting mechanism provided at a second position movably for moving the lens holding frame, wherein the first adjusting mechanism for operating the first adjusting mechanism is provided. An operating unit, a second operating unit that operates the second adjusting mechanism, a driving force input unit that operates the first operating unit and the second operating unit, and a driving force input unit that is input to the driving force input unit. A driving force transmitting unit that transmits the driving force to the first operating unit and the second operating unit, and the first operation is performed in accordance with the driving amount input to the driving force input unit. The drive amount of the unit and the second operation unit is set to be substantially the same. Than it is.

[0010] According to the above configuration, when positional adjustment between the lens holding frame and the frame member is performed in a state where the lens holding frame is assembled to the frame member,
The first and second operating units are mounted on the first and second adjusting mechanisms, and a driving force is input to the driving input unit. Then, the driving force input to the driving input unit is transmitted to the first and second operating units in a substantially similar manner via the driving force transmitting unit, and the first and second operating units are substantially the same amount. Driven, the first
And operating the second adjusting mechanism to quantitatively move the lens holding frame with respect to the frame member. Thus, the position of the optical axis of the lens of the lens holding frame can be adjusted with high accuracy by a simple operation that only drives the drive input unit while realizing a simple configuration.

The present invention also provides a lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and a direction in which the lens holding frame is substantially perpendicular to the optical axis of the lens with respect to the frame member. A first operating unit for driving the first adjusting member, and a second operating member for driving the first adjusting member. A second operating portion for driving the first
A driving force input unit to which a driving force for driving the second operating unit is input; a first driving force transmitting unit that transmits the driving force from the driving force input unit to the first operating unit; A second driving force transmitting unit that transmits driving force from the driving force input unit to the second operating unit. The first and second operating portions are driven in the same direction by substantially the same amount via the second driving force transmitting portion.

According to the above arrangement, when the positions of the lens holding frame are adjusted with each other in a state where the lens holding frame is assembled to the frame member,
The first and second operating units are mounted on the first and second adjusting mechanisms, and a driving force is input to the driving input unit. Then, the driving force input to the driving input unit is transmitted to the first and second operating units via the first and second driving force transmitting units, and the first and second operating units are transmitted. Are driven by the same amount in the same direction and actuate the first and second adjustment mechanisms to cooperatively move the lens holding frame in a direction substantially orthogonal to the optical axis with respect to the frame member. Let it. Thus, the position of the optical axis of the lens of the lens holding frame can be adjusted with high accuracy by a simple operation that only drives the drive input unit while realizing a simple configuration.

Further, the optical apparatus of the present invention has a lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and a first member movably provided at a first position. An adjusting mechanism, and a second adjusting mechanism provided at a second position so as to move the lens holding frame, and drives the first adjusting mechanism and the second adjusting mechanism by substantially the same amount. Thereby, the optical axis of the lens is adjusted in a direction substantially orthogonal to the lens.

According to the above configuration, when the position adjustment between the lens holding frames is performed while the lens holding frames are assembled to the frame members,
By driving the first and second adjustment mechanisms by substantially the same amount, the lens holding frame is quantitatively moved with respect to the frame member. Thereby, after realizing a simple configuration, the position of the optical axis of the lens of the lens holding frame is adjusted with high precision by a simple operation of driving the first and second adjustment mechanisms by substantially the same amount. be able to.

Further, the optical apparatus of the present invention is a lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and a first long hole formed at a first position in the lens holding frame. A hole, a second elongated hole drilled at a second position in the lens holding frame, a first round hole drilled in the frame member corresponding to the first elongated hole, A second round hole formed in the frame member corresponding to the second long hole, and an eccentric portion in which a shaft is inserted through the first round hole and is eccentric with respect to the shaft. A first eccentric pin rotatably disposed to be engaged with the first elongated hole, and an eccentric shaft inserted through the second round hole and eccentric with respect to the shaft portion. A rotatable second eccentric pin whose core is engaged with the second elongated hole, wherein the first eccentric pin and the second eccentric pin are in the same direction. And, approximately the same amount, is rotated, and configured to adjust the direction of the position substantially perpendicular to the optical axis of the lens of the lens holding frame with respect to the frame member.

According to the above arrangement, when position adjustment between the lens holding frame and the frame member is performed while the lens holding frame is assembled to the frame member,
By rotating the first and second eccentric pins by substantially the same amount in the same direction, the eccentric portions of the first and second eccentric pins and the first and second eccentric pins of the lens holding frame are rotated. The lens holding frame is quantitatively moved with respect to the frame member by the action of the elongated hole. This realizes a simple configuration and, with a simple operation of driving the first and second eccentric pins in the same direction by substantially the same amount, can precisely adjust the optical axis of the lens of the lens holding frame. Position can be adjusted.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an optical apparatus according to an embodiment of the present invention.
1 is mounted and mounted on a lens barrel 8 of a camera body 9 shown in FIG. 2, for example. A lens holding frame 11 is attached to the frame member 10. Here, in the figure, a first direction orthogonal to the optical axis is shown as an X axis, and a second direction orthogonal to the optical axis and the first direction is shown as a Y axis.

In FIG. 2, reference numeral 7 denotes a release button, 6
Is a zoom switch, 5 is a viewfinder window, 4 is a distance measurement window, 3
Denotes a strobe window, and 2 denotes a display unit.

As shown in FIG. 3, the lens holding frame 11 has a flange-shaped frame portion 112 which forms a substantially flat surface with respect to the optical axis on one side of a mounting ring 111, and has a first and a second inside thereof.
Are accommodated and arranged at a predetermined interval.

FIG. 3 is a sectional view taken along the line A--A in FIG.
3 shows a cross section. Therefore, the portions corresponding to the Y-axis direction are configured in substantially the same manner, and the reference numerals in parentheses are attached beside the reference numerals of the same portions.

That is, the frame member 10 is provided with a mounting surface 101 that forms a plane substantially perpendicular to the optical axis, corresponding to the frame 112 of the lens holding frame 11. At the approximate center, an insertion opening 102 is formed corresponding to the mounting ring 111 of the lens holding frame 11. The insertion opening 102 is formed a predetermined amount larger than the outer shape of the mounting ring 111 of the lens holding frame 11 so that the lens holding frame 11 can be adjusted with respect to the frame member 10 in a plane perpendicular to the optical axis. Have been.

The frame member 10 has a mounting surface 101
First and second round holes 103 and 104 are formed at predetermined two positions substantially symmetric with respect to the optical axis on the X axis of the lens holding frame 11, and the third and fourth round holes are formed. Holes 105, 10
6 are formed at predetermined two positions substantially symmetrical with respect to the optical axis on the Y axis.

On the other hand, the first and second positions of the lens holding frame 11 are at first and second positions on an axis substantially parallel to the X axis of the frame portion 112 and sandwiching the optical axis. First and second long-diameter shapes in the Y-axis direction constituting the adjustment mechanism
Of the first and second round holes 10
3, 104 are drilled. And this frame part 1
12 has a third major axis in the X-axis direction that constitutes third and fourth adjustment mechanisms at third and fourth positions on the axis substantially parallel to the Y-axis and sandwiching the optical axis. The third and fourth long holes 115 and 116 correspond to the third and fourth round holes 105 and 1, respectively.
Drilled corresponding to 06.

The frame member 10 and the lens holding frame 11
Inserts the mounting ring 111 of the lens holding frame 11 into the insertion opening 102 of the mounting surface 101 of the frame member 10 and
With the first to fourth long holes 113 to 116 facing the first to fourth round holes 103 to 106 of the mounting surface 101, the first to fourth long holes 113 of the lens holding frame 11 are set.
To 116, the first to fourth adjusting mechanisms,
First to fourth eccentric pins 12 serving as fourth to fourth adjusting members
To 15 are rotatably inserted, for example.

Here, the first to fourth eccentric pins 12
15 to 15 are formed in substantially the same manner, and for convenience, the first and second eccentric pins 12 and 13 for X-axis adjustment will be described as representatives, and the third and fourth Y-axis adjustments will be described. Eccentric pins 14, 15
In FIG. 3, the first and second eccentric pins 1
The same parts as in 2 and 13 are denoted by reference numerals in parentheses.

That is, the first and second eccentric pins 12,
13 (third and fourth eccentric pins 14 and 15) have eccentric portions 121 and 131 (141 and 151) in the middle thereof at first and second long holes 113 and 114 (third and fourth eccentric pins 14 and 15). 4 corresponding to the long holes 115, 116).
Operation holes 122, 132 (142, 152) having a polygonal shape, for example, a hexagonal shape into which the first and second operating portions 20, 21 constituting the operating portion of the adjusting device described later are inserted.
Are respectively provided. The first and second eccentric pins 12, 13 (the third and fourth eccentric pins 14, 1)
5), insertion portions 123, 133 (143, 15) each having a ring groove (a symbol is omitted for convenience of illustration) at the tip thereof.
3) is formed corresponding to the first and second round holes 103 and 104 (the third and fourth round holes 105 and 106).

The first to fourth eccentric pins 12 to 15
Is that the insertion portions 123, 133, 143, 153 are the first
After being inserted through the first through fourth long holes 113, 114, 115, and 116, they are inserted through the first through fourth round holes 103, 104, 105, and 106 of the mounting surface 102 of the frame member 10, and the eccentric portions thereof 121, 131, 141, 151 are first to fourth
With the long holes 121, 131, 141, and 151 inserted, the E-ring 16 is attached to each ring groove and rotatably attached to the attachment surface 102 of the frame member 10.
Each eccentric part 1 of these first to fourth eccentric pins 12 to 15
The eccentric amounts of 21 to 151 are appropriately set according to the optical axis adjustment amount.

The first to fourth eccentric pins 12 to 15
Are the first and second eccentric pins 1 for X-axis adjustment
When the rotary operation of the eccentric portions 121 and 13 is performed,
At 1, the short-diameter portions of the first and second long holes 113 and 114 of the frame portion 112 of the lens holding frame 11 are respectively moved and urged in the X-axis direction. At this time, the third and fourth eccentric pins 14 and 15 for Y-axis adjustment are configured such that the eccentric portions 141 and 151 have the third and fourth long holes 115 of the frame 112 of the lens holding frame 11.
116, and the third and fourth eccentric pins 14,
Since 15 is supported by the frame member 10, the movement of the lens holding frame 11 in the X-axis direction is allowed, and the movement of the lens holding frame 11 in the X-axis direction with respect to the frame member 10 is guided. That is,
When performing adjustment in the X-axis direction, the third and fourth eccentric pins 14 and 15 for Y-axis adjustment are linear guides that restrict the movement and rotation of the lens holding frame 11 in the Y-axis direction. Function as

When the third and fourth eccentric pins 14 and 15 for Y-axis adjustment are rotated, the eccentric portions 14 and 15 are rotated.
Reference numerals 1 and 151 move and urge the short-diameter portions of the third and fourth long holes 115 and 116 of the frame portion 112 of the lens holding frame 11 in the Y-axis direction. At this time, the first and second eccentric pins 12 and 13 for X-axis adjustment have the eccentric portions 121 and 131, the first and second long holes 113 of the frame 112 of the lens holding frame 11,
114 and the first and second eccentric pins 12, 1
3 is supported by the frame member 10 so that the lens holding frame 11 is allowed to move in the Y-axis direction,
Of the frame member 10 in the Y-axis direction. That is, when performing the adjustment in the Y-axis direction, the first and second eccentric pins 12 and 13 for the X-axis adjustment
It functions as a linear guide that regulates axial movement and rotational movement.

Here, the first to fourth eccentric pins 12
, The first and second eccentric pins 12 and 13 or the third and fourth eccentric pins 14 and 15 are simultaneously rotated to drive the lens holding frame 11 in the X-axis direction and the Y-axis direction. An adjusting device for adjusting the optical axis by moving and adjusting will be described with reference to FIG.

That is, in FIG. 4, reference numeral 20 denotes a substantially ring-shaped operating portion which is a driving force input portion. The operating portion 20 has a substantially central opening 201 opposed to the lens of the lens holding frame. Used as a measurement window. The operation unit 20 has a drive gear 2 constituting a driving force transmission unit on its outer peripheral portion.
1 is provided coaxially. The drive gear 21 has first and second gears 22 and 23 constituting first and second drive force transmission units, for example, rotating at an interval of about 180 degrees with respect to the optical axis. They are freely meshed.

When the first and second gears 22 and 23 are meshed with the drive gear 21, the first and second gears 22 and 23
4 and 25, and their rotating shafts 221 and 231
Are rotatably supported by the mounting plates 24 and 25. And
The mounting plates 24 and 25 are assembled to the operation unit 20 with the movement in the optical axis direction restricted via an E-ring 26. Thereby, the first and second gears 22, 23 are
When the operation unit 20 is rotated and the drive gear 21 is rotationally driven, the rotational force is transmitted and synchronously rotated in the same direction by substantially the same amount.

The first and second gears 22, 23
As shown in FIG. 3, the first and second shafts 221 and 231 have a polygonal prism shape, for example, a hexagonal prism shape.
Of the first and second eccentric pins 1
2, 13 operation holes 122 and 132 (third and fourth eccentric pins 14 and 15 operation holes 142 and 152) are provided to protrude. The first and second operating portions 27,
Reference numeral 28 denotes operation holes 122 and 132 of the first and second eccentric pins 12 and 13 (or the third and fourth eccentric pins 1 and 2).
4, 15 of the operation holes 142, 152), and is integrally rotated with the first and second gears 22, 23 to rotate the first and second eccentric pins 12, 13 (or The third and fourth eccentric pins 14, 15) are rotationally driven in the same direction by substantially the same amount.

In the above configuration, the lens holding frame 11 is
The first to fourth long holes 113 to 116 are opposed to the first to fourth round holes 103 to 106 of the frame member 10, and the mounting ring 111 is inserted into the insertion port 10 of the mounting surface 101 of the frame member 10.
Insert into 2. In this state, the first to fourth eccentric pins 12 to 15 are inserted into the first to fourth elongated holes 113 to 106 of the lens holding frame 11 from the insertion portions 123 to 153, and the ring grooves are formed. Are inserted through the first to fourth round holes of the mounting surface of the frame member, and E-rings 16 are respectively mounted in the ring grooves and rotatably supported by the frame member 10.

Here, the first to fourth eccentric pins 1
2 to 15, the eccentric portions 121 to 151 are accommodated by being engaged with the first to fourth long holes 113 to 116 of the lens holding frame 11, and the lens holding frame 11 is 1
And the initial position shown in FIG. In this assembled state, the first to fourth eccentric pins 12 to 15 have the operation holes 122 to 152 in the frame member 1 when viewed from the optical axis direction.
0, and is rotatably positioned on the front side of the lens holding frame 11. For example, as shown in FIG. The operation holes 122 and 132 of the first and second eccentric pins 12 and 13 are inserted and attached.

Here, a measuring device 29 (see FIG. 3) for measuring the optical axis is arranged opposite to the opening 201 of the operation unit 20 and the first and second lenses 117 and 118 of the lens holding frame 11 are arranged.
Is measured. Then, the first and second lenses 1 of the lens holding frame 11 are determined based on the measurement result.
Optical axis adjustments in the X-axis direction and the Y-axis direction of 17, 118 are performed. Here, the target optical axis when adjusting the optical axes of the first and second lenses 117 and 118 is a virtual optical axis O, the actual optical axis is O1, and the first and second lenses 117 and 118 are designed. Assuming that the upper optical axis is O2, in the initial state of the adjustment shown in FIG. 1, the virtual optical axis O and the designed optical axis O2 coincide. In the initial state of this adjustment, the first and second eccentric pins 12 and 13 for X-axis adjustment have their eccentric portions 121 and 13 respectively.
An imaginary line connecting the centers of the first and the insertion portions 123 and 133 is substantially parallel to the Y axis, and the third and fourth eccentric pins 14 and 15 for adjusting the Y axis are parallel to the X axis. ing.

In this state, for example, if the actual optical axis O1 of the first and second lenses 117 and 118 in the X-axis direction deviates from the virtual optical axis O and the optical axis O2 aimed at the design, the adjusting device Of the first and second operating portions 27 and 28 of the third and fourth
With the eccentric pins 12, 13 inserted into the operation holes 122, 132, the operation unit 20 is rotated counterclockwise (or clockwise) in the figure. Then, the rotational force applied to the operation unit 20 is transmitted via the drive gear 21 to the first and second gears 2.
2, and the first and second gears 22, 23 are rotated clockwise (or counterclockwise) in the figure by substantially the same amount.

Thus, the first and second operating portions 27,
28 is driven to rotate integrally with the first and second gears 22 and 23, and rotates the first and second eccentric pins 12 and 13 in the same direction by substantially the same amount, thereby forming the eccentric portion 121 thereof. , 13
1 to move the lens holding frame 11 to the frame member 10 X
It is moved and urged quantitatively in the axial direction, and the first movement is performed as shown in FIG.
And the position of the second lens 117, 118 is adjusted so that the actual optical axis O1 coincides with the virtual optical axis O.

At this time, the third and fourth eccentric pins 14 and 15 for Y-axis adjustment have the eccentric portions 141 and 151 formed in the third and fourth elongated holes of the frame 112 of the lens holding frame 11. 115,
The engagement with the lens 116 regulates the movement and the rotational movement of the lens holding frame 11 in the Y-axis direction, and functions as a straight guide for smoothing the movement in the X-axis direction.

When the optical axis is moved in the Y-axis direction, the first and second operating portions 27 and 28 of the adjusting device are moved to the third position.
And the operation holes 142 and 152 of the fourth eccentric pins 14 and 15
Is rotated clockwise (or counterclockwise) in the figure. Then, the rotational force applied to the operation unit 20 is transmitted to the first and second gears 22 and 23 via the drive gear 21, and the first and second gears 22 and 2 are transmitted.
3 is rotated counterclockwise (or clockwise) in the figure by substantially the same amount.

Thus, the first and second operating portions 27,
28 is driven to rotate integrally with the first and second gears 22 and 23, and the third and fourth eccentric pins 14 and 15 are rotated in the same direction by substantially the same amount. , 15
1 to move the lens holding frame 11 relative to the frame
The first and second lenses 1 are urged to move quantitatively in the axial direction.
The actual optical axis O1 in the Y-axis direction of 17, 17 is replaced with the virtual optical axis O.
Adjust the position to match.

At this time, the first and second eccentric pins 12 and 13 for adjusting the X-axis have the eccentric portions 121 and 131 as shown in FIG. The movement of the lens holding frame 11 in the X-axis direction and the rotational movement thereof are regulated by the engagement relationship with the second long holes 113 and 114, and
It functions as a straight guide for smooth movement in the axial direction.

Then, with the optical axis adjustment in the X-axis and Y-axis directions being executed, the first and second lens holding frames 11 are again measured by using the measuring device 29 disposed opposite to the opening 201 of the operation unit 20. The optical axes of the second lenses 117 and 118 are measured, and the adjustment operation is completed in a state where the optical axes have reached desired values.

In the state where the optical axis adjustment in the X and Y axis directions has been completed, the first and second operating sections are used. 27,2
8 is an operation hole 12 of the first and second eccentric pins 12 and 13
2 and 132, the lens holding frame 11 is fixed to each other by, for example, bonding three portions around the lens holding frame 11 to the frame member 10.

FIG. 5 shows an optical axis adjustment state in the X-axis direction, but the optical axis adjustment in the Y-axis direction is performed in substantially the same manner, so that the Y-axis adjustment is performed in the same manner as in FIG. The same adjustment structure of the direction is denoted by a reference numeral in parentheses.

As described above, in the optical apparatus, the lens holding frame 11 is movably mounted on the frame member 10 in a plane substantially perpendicular to the optical axis, and the X-axis adjustment first and second lens holding frames 11 are arranged between the lens holding frame 11 and the frame. The first and second eccentric pins 12 and 13 and the third and fourth eccentric pins 14 and 15 for Y-axis adjustment are rotatably assembled, and the first and second eccentric pins 12 and 13 are rotated. The rotation of the lens 13 adjusts the position of the lens holding frame 11 in the X-axis direction, and the movement and rotation of the lens holding frame 11 in the Y-axis direction are restricted by the action of the third and fourth eccentric pins 14 and 15. The position of the lens holding frame 11 in the Y-axis direction is adjusted by rotating the third and fourth eccentric pins 14 and 15, and the first and second eccentric pins 12 and 15 are rotated. 13 and the like, the movement and rotation in the X-axis direction are guided while being restricted, and the X-axis direction The position adjustment of the fine Y-axis direction, and configured to be able to quantitatively adjusted independently.

According to this, components can be reduced.
The configuration can be easily simplified, and the first and second eccentric pins 12, 13 and the third and fourth eccentric pins 14, 1
Since the quantitative adjustment in the X-axis direction and the Y-axis direction according to the rotation amount of 5 can be easily performed, the position adjustment of the lens holding frame 11 can be simply and easily performed with high accuracy.

According to this, for example, when adjusting the optical axis of an optical system constituting an optical apparatus, the lens holding frame 11 which is a feature of the present invention is connected to the first to fourth eccentric pins 12 to 12.
First, the frame member 10 which is assembled in a plane substantially perpendicular to the optical axis via the optical system 15 is assembled and arranged with, for example, a lens group of another frame member constituting the optical system. In the attached state, the degree of eccentricity of another frame member with respect to the lens optical axis is measured. Then, the first and second eccentric pins 12 and 13 and the third and fourth eccentric pins 14 and 15 are operated to rotate in the X-axis direction and the Y-axis direction according to the measured eccentric amount. By adjusting the position in the axial direction, the optical axis of the optical system can be adjusted.

As a result, a step of measuring the amount of eccentricity of the lens,
Since the eccentricity adjustment step can be performed separately, a simple and easy assembling operation is realized.

As described above, the adjusting device for the above-described optical device is configured such that the operating unit 20 is provided with the driving gear 21 coaxially, and the first and second gears 2 are attached to the driving gear 21.
The first and second gears 22 and 23 are coaxially provided with first and second operating portions 27 and 28 on the rotation shafts 221 and 231 of the first and second gears 22 and 23, respectively. The first and second operating portions 27 and 28 are rotatably arranged to move and adjust the lens holding frame 11 in a direction substantially perpendicular to the optical axis and in the X-axis and Y-axis directions orthogonal to each other. X-axis adjustment first and second eccentric pins 12, 13
(Alternatively, the third and fourth eccentric pins 14 for Y-axis adjustment,
15), the first and second operating portions 27,
28 are driven in the same direction by substantially the same amount so that the lens holding frame 1
The first and second lenses 117 and 118 are configured so that the optical axis can be adjusted in the X-axis direction or the Y-axis direction.

According to this, the first and second gears 22 and 22 are driven by the drive gear 21 in conjunction with the rotation of the operation unit 20.
23 are driven in the same direction by substantially the same amount, and the first and second
Are driven in the same direction by substantially the same amount,
The first and second eccentric pins 12, 13 (or third
And the fourth eccentric pins 14 and 15) are operated to quantitatively move the lens holding frame 11 relative to the frame member 10 in the X-axis direction or the Y-axis direction to adjust the position. As a result, after realizing a simple configuration, the optical axes of the first and second lenses 117 and 118 of the lens holding frame 11 can be precisely positioned by a simple operation of simply rotating the operation unit 20. Adjustments can be performed.

According to this, the first and second operating portions 27 and 28 are connected to the first and second eccentric pins 12 and 13 (or the third and second eccentric pins) on the front side of the lens holding frame 11. 4 is inserted into the eccentric pins 14 and 15), the opening 201 of the operation unit 20 is connected to the first and second lenses 117 and 1
18, by disposing the measuring device 29 so as to face the opening 201,
Since it is possible to perform the optical axis adjustment step substantially simultaneously,
Along with accelerating the operation of adjusting the optical axis, the adjustment accuracy can be improved.

The adjusting device for the optical apparatus according to the present invention is not limited to the above-described embodiment, but may be any other adjusting device, for example, protruding at approximately 90-degree intervals as shown in FIGS. The first to fourth operating units 30 to 33 are
And the second and third operating units 30 and 31 and the third and fourth operating units 32 and 33 are separately arranged in such a manner that they can be rotationally driven by substantially the same amount. , 31
It is also possible to configure the third and fourth operating portions 32 and 33 to independently adjust the position in the X-axis direction and the Y-axis direction.

However, FIG. 8 shows a cross section taken along the line BC of FIG. 7, and in the figure, a pair of arms is provided beside the first operating portion 30 which cooperatively adjusts the position in the X-axis or Y-axis direction. The second
Working part of. Reference numerals 31 and a pair of a fourth operating portion 33 beside the third operating portion 32 are attached in parentheses.

According to this embodiment, the first to fourth operating sections. 30 to 33 are the first to fourth eccentric pins 12
15 through 15. It is possible to adjust the positions in both the X-axis and the Y-axis directions by performing a preparatory work of merely inserting the operation holes 122 to 152 into the operation holes 122 to 152. It is possible to facilitate the shaft adjustment work.

That is, in the present embodiment, the substantially ring-shaped second operation unit 35 is coaxially mounted on the outer periphery of the substantially ring-shaped first operation unit 34 as a drive input unit, and is independently provided. Can be freely rotated. Here, the first operation unit 34 is provided as a measurement window with an opening 342 substantially at the center thereof facing the first and second lenses 117 and 118 of the lens holding frame 11.

Then, the first and second operation units 34,
The first and second driving gears 341 and 351 constituting the first and second driving force transmitting portions are provided on the outer periphery of the 35 in a laminated structure. Among them, the first drive gear 341 is provided with first and second gears 36 and 37 substantially one for the optical axis.
The gears are arranged with an interval of 80 degrees. On the other hand, the second drive gear 351 is provided with third and fourth gears 38 and 39 at an interval of approximately 180 degrees with respect to the optical axis, and with the first and second gears 36 and 37 at approximately 90 degrees. The gears are arranged with an interval of degrees.

When the first to fourth gears 36 to 39 are engaged with the first and second drive gears 341 and 351, a pair of mounting plates 40 and 41 are sandwiched therebetween, and each of the rotating shafts 361 to 391 are rotatably supported by the mounting plates 40 and 41. The mounting plates 40 and 41 are connected to the first
The movement in the optical axis direction is restricted to one end of the operation unit 34 via the E-ring 42.

Thus, the first and second gears 36, 3
When the first operating portion 34 is rotated and the first drive gear 341 is rotationally driven, the rotational force is transmitted and synchronously rotated about the same amount in the same direction. When the second operating part 35 is rotated and the second drive gear 351 is driven to rotate, the third and fourth gears 38 and 39 are transmitted in synchronism with each other, and are synchronized with each other. Driven by the same amount in the same direction.

The first to fourth gears 36 to 39
The first to fourth operating portions 30 to 3 formed in a polygonal prism shape, for example, a hexagonal prism shape, are provided on the rotation shafts 361 to 391.
3 are provided so as to protrude corresponding to the operation holes 122 to 152 of the first to fourth eccentric pins 12 to 15. The first to fourth operating units 30 to 33 are provided with the first to fourth operating units.
Are inserted into the operation holes 122 to 152 of the eccentric pins 12 to 15 and are rotationally driven integrally with the first to fourth gears 36 to 39.

In the above configuration, the first to fourth operating portions 30 to 33 are provided with the first to fourth eccentric pins 12 to 15 respectively.
Are inserted and attached to the operation holes 122 to 152. In this state, the measuring device 29 is disposed so as to face the opening 342 of the first operation unit 34 and the lens holding frame 11
The optical axes of the first and second lenses 117 and 118 are measured, and based on the measurement results, the first and second operation units 3 are measured.
4 and 35 are selectively rotated.

For example, when performing position adjustment in the X-axis direction, the first operation unit 34 is rotated clockwise (or counterclockwise) in the figure. Then, the rotational force applied to the first operation unit 34 is transmitted to the first and second gears 36 and 37 via the first drive gear 341, and the first and second gears 36 and 37 are moved as shown in FIG. It is rotated approximately the same amount counterclockwise (or clockwise).

As a result, the first and second operating parts 30,
31 is rotated integrally with the first and second gears 36 and 37, and the first and second eccentric pins 12, 13 are rotated in the same direction by substantially the same amount, so that the eccentric portions 121 are rotated. , 13
1 cooperates to quantitatively move and bias the lens holding frame 11 relative to the frame member 10 in the X-axis direction as described above.

At this time, the third and fourth eccentric pins 14 and 15 for Y-axis adjustment are connected to the eccentric portions 141 and 15 as described above.
151 is the third and fourth frames 112 of the lens holding frame 11.
The movement of the lens holding frame 11 in the Y-axis direction and the rotation of the lens holding frame 11 are restricted by the engagement relationship with the lens holding frame 11 by the engagement relationship with the long holes 115 and 116, and the movement in the X-axis direction. It functions as a straight guide for smooth running.

When the optical axis is moved in the Y-axis direction, the second operation unit 35 is rotated clockwise (or counterclockwise) in the figure instead of the first operation unit 34. Then, the rotational force applied to the second operation unit 35 is transmitted to the third and fourth gears 38 and 39, and the third and fourth gears 3
8, 39 are rotated counterclockwise (or clockwise) in the figure by substantially the same amount.

As a result, the third and fourth operating parts 32,
33 is driven to rotate integrally with the third and fourth gears 38 and 39, and rotates the third and fourth eccentric pins 14 and 15 in the same direction by substantially the same amount. 141, 1
In cooperation with 51, the lens holding frame 11 is quantitatively moved and biased in the Y-axis direction with respect to the frame member 10.

At this time, the first and second eccentric pins 12 and 13 for the X-axis adjustment have the first and second eccentric portions 121 and 131 of the frame 112 of the lens holding frame 11 as described above. 2
Due to the engagement relationship with the long holes 113 and 114, the movement of the lens holding frame 11 in the X-axis direction and the rotational movement are restricted, and the lens holding frame 11 functions as a straight guide for smoothing the movement in the Y-axis direction.

Therefore, the present invention is not limited to the above embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention.
Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

For example, even if some components are deleted from all the components shown in each embodiment, the problem described in the section of the problem to be solved by the invention can be solved and the effects of the invention are described. When an effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

Based on the above-described embodiment, (1) a lens holding frame for holding a lens, a frame member for supporting the lens holding frame movably along a plane substantially perpendicular to the optical axis, and a frame member So as to move the lens holding frame along a first direction in the plane,
A first adjustment that is displaceably provided at a first position of the lens holding frame or the frame member and is displaced during adjustment to adjust and displace the position of the optical axis of the lens held by the lens holding frame. A member and a second position of the lens holding frame or the frame member movably provided so as to move the lens holding frame relative to the frame member along the first direction in the plane. A second adjustment member that adjusts and displaces the position of the optical axis of the lens held by the lens holding frame by being displaced at the time of adjustment, wherein the first adjustment member and the second adjustment By displacing the member by substantially the same amount, the position of the optical axis of the lens can be adjusted along the first direction, thereby providing an optical apparatus.

(2) In the above description of (1), the lens holding frame is further moved relative to the frame member in a second direction substantially orthogonal to the first direction in the plane. A third position that is displaceably provided at a third position of the lens holding frame or the frame member and is displaced during adjustment to adjust and displace the position of the optical axis of the lens held by the lens holding frame. And the lens holding frame or the frame member is displaceable to a fourth position of the lens holding frame or the frame member so as to move the lens holding frame with respect to the frame member along the second direction in the plane. A fourth position for adjusting and displacing the position of the optical axis of the lens held by the lens holding frame by being displaced during the adjustment.
And adjusting the position of the optical axis of the lens along the second direction by displacing the third adjusting member and the fourth adjusting member by substantially the same amount. An optical device characterized by having such a configuration can be provided.

(3) A lens holding frame for holding a lens,
A frame member that movably supports the lens holding frame along a plane substantially perpendicular to the optical axis; and a lens member that moves the lens holding frame with respect to the frame member along a first direction in the plane. A first position that is displaceably provided at a first position of the lens holding frame or the frame member and is displaced during adjustment to adjust and displace the position of the optical axis of the lens held by the lens holding frame. An adjusting member and a displaceably provided at a second position of the lens holding frame or the frame member so as to move the lens holding frame relative to the frame member along the first direction in the plane. A second adjusting member that adjusts and displaces the position of the optical axis of the lens held by the lens holding frame by being displaced during the adjustment, and a second adjusting member for the optical device, 1 adjustment member A first operating part capable of driving the first adjustment member to be displaced in the connected state; and a second operating part capable of driving the second adjustment member to be displaced in the state connected to the second adjustment member. Operating unit, a drive input unit for operating the first operating unit and the second operating unit, and a driving force input to the drive input unit, the first operating unit and the second operating unit And a driving force transmitting means for transmitting the respective operation amounts to the operating portions of the optical device so as to be substantially equal to each other.

(4) a lens holding frame for holding a lens;
A frame member that movably supports the lens holding frame along a plane substantially perpendicular to the optical axis; and a lens member that moves the lens holding frame with respect to the frame member along a first direction in the plane. A first position that is displaceably provided at a first position of the lens holding frame or the frame member and is displaced during adjustment to adjust and displace the position of the optical axis of the lens held by the lens holding frame. An adjusting member and a displaceably provided at a second position of the lens holding frame or the frame member so as to move the lens holding frame relative to the frame member along the first direction in the plane. A second adjusting member that adjusts and displaces the position of the optical axis of the lens held by the lens holding frame by being displaced at the time of adjustment; and the lens holding frame in the plane with respect to the frame member. The first The lens holding frame or the frame member is displaceably provided at a third position of the lens holding frame or the frame member so as to be moved along a second direction substantially orthogonal to the direction. A third adjusting member for adjusting and displacing the position of the optical axis of the held lens; and the lens so as to move the lens holding frame relative to the frame member along the second direction in the plane. A fourth position that is displaceably provided at a fourth position of the holding frame or the frame member and is displaced during adjustment to adjust and displace the position of the optical axis of the lens held by the lens holding frame;
And an adjusting member for an optical apparatus, comprising: an adjusting member connected to the first adjusting member,
A first operating unit capable of driving the first adjustment member to be displaced;
In a state where the second adjusting member is connected to the second adjusting member, a second operating portion capable of driving the second adjusting member to be displaced, and a second operating portion for operating the first operating portion and the second operating portion. The first driving input unit and the driving force input to the first driving input unit are transmitted to the first operating unit and the second operating unit such that the respective operating amounts are substantially the same. In a state in which the third driving member is connected to the first driving force transmitting means and the third adjusting member, the third operating portion is capable of driving the third adjusting member to be displaced, and is connected to the fourth adjusting member. In the state, a fourth operating unit capable of driving the fourth adjusting member to be displaced, a second drive input unit for operating the third operating unit and the fourth operating unit, and The driving force input to the driving input unit is applied to the third operating unit and the fourth operating unit, respectively. It is possible to provide an adjusting device for an optical apparatus, characterized by comprising a second driving force transmission means for transmitting such amount operation is substantially the same, the.

[0075]

According to the present invention, it is possible to provide an optical apparatus which has a simple structure and which can easily and easily realize high-precision lens position adjustment, and an adjustment apparatus therefor.

[Brief description of the drawings]

FIG. 1 is a plan view for explaining a main configuration of an optical apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view shown for explaining a schematic configuration of a camera to which the configuration shown in FIG. 1 is applied;

FIG. 3 is a view showing an arrangement in the X-axis direction when the adjusting device according to the embodiment of the present invention is attached to the optical apparatus of FIG. 1;
FIG. 4 is a cross-sectional view showing a cross section A.

FIG. 4 is a plan view showing the adjustment device of FIG. 3 taken out therefrom.

FIG. 5 is a cross-sectional view shown for explaining an X-axis direction adjustment operation of FIG. 3;

FIG. 6 is a plan view showing a Y-axis adjustment state of FIG. 1;

FIG. 7 is a plan view showing a configuration of an adjusting device according to another embodiment of the present invention.

FIG. 8 is a sectional view showing a section taken along line BC in FIG. 7;

[Explanation of symbols]

 2 Display part. 3 ... Strobe window. 4. Distance measuring window. 5 Finder window. 6 Zoom switch. 7 ... Release button. 8 ... lens barrel. 9 Camera body. 10 Frame member. 101 ... Mounting surface. 102 ... insertion slot. 103 1st round hole. 104 second round hole. 105 3rd round hole. 106 4th round hole. 11: Lens holding frame. 111 ... Mounting ring. 112 ... Frame part. 113 ... 1st long hole. 114 ... second long hole. 115 ... third long hole. 116 4th long hole. 117: First lens. 118 second lens. 12 1st eccentric pin. 121 ... eccentric part. 122 ... operation hole. 123 ... insertion part. 13 Second eccentric pin. 131 ... eccentric part. 132 ... Operation hole. 133 insertion part. 14 Third eccentric pin. 141 ... eccentric part. 142 ... operation hole. 143 ... insertion part. 15 Fourth eccentric pin. 151 ... eccentric part. 152 ... operation hole. 153... Insertion part. 16 ... E-ring. 20 ... operation part. 201 ... Opening. 21 ... drive gear. 22 First gear. 221 ... rotation axis. 23 ... second gear. 231 A rotation axis. 24, 25 ... Mounting plate. 26 ... E-ring. 27... First operating part. 28... Second operating part. 29 ... Measuring machine. 30 1st operation part. 31... Second operating part. 32... Third operating part. 33... Fourth operating part. 34 1st operation part. 341 A first drive gear. 342… Opening. 35 second operation unit. 351... Second drive gear. 36 First gear. 361 ... Rotation axis. 37 Second gear. 371 ... Rotation axis. 38 ... third gear. 381: Rotation axis. 39: Fourth gear. 391 ... Rotation axis. 40, 41 ... Mounting plate. 42 ... E-ring.

Claims (4)

[Claims] 1. A lens holding frame for holding a lens, a frame member for supporting the lens holding frame, a first adjusting mechanism movably provided at a first position for moving the lens holding frame, and the lens holding. An adjustment device for an optical device, comprising: a second adjustment mechanism provided at a second position so that the frame can be moved; a first operating unit that operates the first adjustment mechanism; A second operating unit that operates the second adjusting mechanism; a driving force input unit that operates the first operating unit and the second operating unit; and a driving force input to the driving force input unit. And a driving force transmitting unit that transmits the driving force to the first operating unit and the second operating unit, wherein the first operating unit and the second operating unit are driven in accordance with the driving amount input to the driving force input unit. An optical device characterized in that the drive amount with the operation unit is set to be substantially the same. Of the adjusting device. 2. A lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and the lens holding frame cooperating with the frame member in a direction substantially orthogonal to an optical axis of the lens. And a first adjusting member for moving the first adjusting member, wherein the first operating portion drives the first adjusting member, and the second operating member drives the second adjusting member. A second operating unit, a driving force input unit to which a driving force for driving the first and second operating units is input, and a driving force from the driving force input unit transmitted to the first operating unit. A first driving force transmitting unit for transmitting the driving force from the driving force input unit to the second operating unit; and a second driving force transmitting unit for transmitting the driving force from the driving force input unit to the second operating unit. According to the input of the force, the first and second driving force transmission units are used to transmit the first and second driving forces.
And an adjustment device for an optical device, wherein the second operation portion is driven in substantially the same amount in the same direction. 3. A lens holding frame for holding a lens, a frame member for supporting the lens holding frame, a first adjusting mechanism movably provided at a first position on the lens holding frame, and the lens holding. A second adjusting mechanism provided at a second position so as to move the frame, and by driving the first adjusting mechanism and the second adjusting mechanism by substantially the same amount, An optical device characterized in that an optical axis is adjusted in a direction substantially orthogonal to the optical axis. 4. A lens holding frame for holding a lens, a frame member for supporting the lens holding frame, and a first hole formed at a first position in the lens holding frame.
A second hole formed at a second position in the lens holding frame.
A first hole formed in the frame member corresponding to the first long hole.
And a second hole formed in the frame member corresponding to the second long hole.
A shaft portion is inserted through the first round hole, and an eccentric portion eccentric to the shaft portion is rotatably disposed to be engaged with the first elongated hole. A first eccentric pin, a shaft portion is inserted through the second round hole, and an eccentric portion eccentric with respect to the shaft portion is rotatably arranged to be engaged with the second elongated hole. And the second eccentric pin and the second eccentric pin are rotated in the same direction and by substantially the same amount, so that the lens holding frame with respect to the frame member is An optical device characterized in that the position of the lens in a direction substantially perpendicular to the optical axis is adjusted.