JPH10206713A - Optical element support base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make small-sized and low-cost an optical element support base which supports an optical element and is adjustable in angle. SOLUTION: A cut 11a is formed in a metal block 11 and then a fixed base 12, a base part 13, and a connection part 11b are formed. The connection part 11b is made so thick as to have a proper elastic force. This optical element support base 10 has the fixed base 12 slanted in an opening direction as to the base part 13 when an adjusting screw 15 is screwed in a screw hole downward. When the adjusting screw 15 is rotated in a screwing-in quantity decreasing direction, the fixed base 12 receives the elastic force of the connection part 11b to slant in a closing direction about the base part 13. Thus, the angle of the optical element 14 can be adjusted by properly rotating the adjusting screw 15. After an adjustment to a desired angle, a fixing screw 16 is clamped to fix the angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical element support for supporting an optical element, and more particularly to an optical element support capable of adjusting an angle.

[0002]

2. Description of the Related Art In recent years, a technology for forming an optical element on an optical waveguide has been developed and practically used for an optical device because it is small, inexpensive, and has stable performance. However, not all of them can be constituted only by optical waveguides, and it is a fact that individual optical elements are required. In particular, laser devices with outputs and wavelengths that cause optical damage when optical waveguides are used, optical waveguides such as Glan-Thompson prism-based optical elements that use crystals, and polarization-dependent optical elements with high extinction ratios In an optical device or an optical device using an optical element that is difficult to realize, an individual optical element will have to be used in the future.

When an individual optical element is used in an optical device, a support base for supporting the optical element is required. FIG. 11 is a diagram showing a schematic configuration of a conventional optical element support base. Here, an optical element support that can be adjusted in only one axis direction will be described. The optical element support base 100 is basically composed of a single metal plate-like member 101, and a cutout 101a is provided in the plate-like member 101 to form a fixed base 102 and a base portion 103. An optical element (for example, a prism) 105 is fixed to the fixed base 102. On the other hand, the base 103 is fixed to an optical device (not shown). The connecting portion 101b is
Since the fixing base 102 is formed to be thin,
3 can be freely opened and closed.

A screw 104 is inserted into the base 103 through a hole 103a. The screw 104 has a distal end 104 a screwed to the fixed base 102. A spring 104c is inserted between the head 104b of the screw 104 and the base 103 in a compressed state. As a result, the fixed base 102 always holds the base 103 with a predetermined force.
Attracted to the side.

An adjusting screw 106 is screwed into the screw hole 103b of the base 103. Adjustment screw 106
Is screwed in until its tip 106a comes into contact with the fixed base 102. By adjusting the screwing amount of the adjusting screw 106, the base 10 of the fixing base 102 is adjusted.
3 can be adjusted, and the optical element 105 can be adjusted.
The direction of can be adjusted.

[0006]

However, such an optical element support table 100 has a fixing base 102 and a base section 103.
Since the spring 104c relies on the force for pulling to the side, miniaturization was difficult. For this reason, it has been difficult to use as individual optical components around the optical waveguide. Further, the use of the spring 104c increases the number of parts, which increases the cost.

The present invention has been made in view of such a point, and an object of the present invention is to provide an optical element support base which is reduced in size and cost.

[0008]

According to the present invention, in order to solve the above-mentioned problems, in an optical element supporting base for supporting an optical element and adjusting an angle, a fixing base on which the optical element is directly fixed; A base for supporting the fixed base,
A connecting portion connected to the base portion with an elastic force so as to be able to open and close the fixed base around one axis with respect to the base portion, and attached to resist an elastic force of the connecting portion; An optical element support base, comprising: an angle adjustment unit that can adjust an inclination angle of the fixed base with respect to a base part within an angle range in which the elastic force always acts.

In such an optical element supporting base, the fixing base is connected to the base so as to be openable and closable about one axis with respect to the base by the connecting part having elastic force. Since the angle adjusting portion is mounted within the angle range where the elastic force always acts against the base member, the inclination angle of the fixed base with respect to the base portion can be adjusted without using a component such as a spring.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a configuration of an optical element support according to the first embodiment of the present invention. FIG. 2 is a view of the optical element support of the first embodiment viewed from the direction of arrow A in FIG. The optical element support 10 has a height of 3 mm and a width of 6 mm.
A fixed base 12 and a base 13 are formed above and below, respectively, by making cuts 11a of appropriate depth into a small stainless steel SUS304 metal block 11 of 3 mm in depth and 3 mm in depth. The connecting portion 11b left by the cut 11a has a function of a hinge and has an appropriate elastic force.

The base portion 13 is fixed to a metal plate of an optical device (not shown) by laser welding or the like. On the other hand, the fixing base 12 is formed with a fixing surface 12a for fixing the optical element 14. The fixing surface 12a is formed so as to be parallel to the bottom surface 13a of the base portion 13 when the fixing base 12 is opened at a predetermined angle with respect to the base portion 13. Here, as the optical element 14, for example, a polarization dependent beam splitter (PBS) having a height, width, and depth of 3 mm is used.

As shown in FIG. 2, a screw hole 12b is formed in the vicinity of the end opposite to the connecting portion 11b of the fixing base 12, as shown in FIG. An adjusting screw 15 is screwed into the screw hole 12b. The adjusting screw 15 adjusts the degree of opening of the fixing base 12 with respect to the base 13 by contacting the tip 15 a with the upper surface 13 b of the base 13. As the adjusting screw 15, for example, a set screw with a hexagonal hole of M1.6 is used. As shown in FIG. 1, by turning the hexagonal hole 15b with a wrench, the screwing amount into the screw hole 12b is adjusted. . At the initial setting stage, the adjusting screw 15 is adjusted so that the fixing base 12 is appropriately opened with respect to the base portion 13 against the elastic force of the connecting portion 11b.

Further, from below the base portion 13,
A fixing screw 16 for fixing the opening angle of the second 2 is attached. The fixing screw 16 includes, for example, the adjusting screw 1
As in 5, a hexagon socket head cap screw of M1.6 is used.
The fixing screw 16 is attached to the base 13 as shown in FIG.
It passes through a hole 13 formed at a position closer to the connecting portion 11b than the point of contact with the adjusting screw 15. The distal end 16a is screwed into a screw hole 12c formed in the fixed base 12.

The optical element support 10 having such a structure is
With the fixing screw 16 loosened appropriately, the adjusting screw 15 is turned with a wrench to adjust the screwing amount. Adjustment screw 1
5 is screwed downward into the screw hole 12b,
2 inclines in the opening direction with respect to the base portion 13. Conversely, when the adjusting screw 15 is turned in a direction to reduce the screwing amount, the fixing base 12 is inclined in a direction to close to the base part 13 by receiving the elastic force of the connecting part 11b. By appropriately turning the adjusting screw 15 in this manner, the angle of the optical element 14 can be adjusted. And if you can adjust to the desired angle,
The fixing screw 16 is closed to fix the angle.

As described above, in the present embodiment, the notch 11a is formed so that the connecting portion 11b has an appropriate elastic force, and the angle adjustment is performed by setting the state where the fixing base 12 is appropriately opened with respect to the base portion 13 as an initial setting. As a result, the spring used in the conventional angle adjusting mechanism is not required, so that the size and cost can be significantly reduced, and the stability can be secured.

In this embodiment, the connecting portion 11 serving as a fulcrum is provided.
Since the adjusting screw 15 is attached at a position farther from the position b, the turning radius of the fixed base 12 can be increased.
Therefore, the angle change per pitch of the adjusting screw 15 can be reduced, and fine adjustment can be performed.

In this embodiment, the fixed base 12, the base portion 13, and the connecting portion 11b are integrally formed. However, for example, a leaf spring is used for the connecting portion 11b, and the fixed base 12 and the connecting portion 11b are formed by the leaf spring. The base portions 13 may be connected.

Next, a second embodiment of the present invention will be described. FIG. 3 is a perspective view showing the configuration of the optical element support according to the second embodiment of the present invention. FIG. 4 is a view of the optical element support of the second embodiment viewed from the direction of arrow B in FIG. Further, FIG. 5 shows the optical element support of the second embodiment by the arrow C in FIG.
It is the figure seen from the direction. The optical element support 20 is, for example, a stainless steel SU having a height of 5 mm, a width of 6 mm, and a depth of 6 mm.
The base material is the metal block 21 made of S304. The metal block 21 is formed with two upper and lower cuts 21a and 21b in directions orthogonal to each other. The metal blocks 21 are formed by forming the cuts 21a and 21b.
, A base portion 22 is formed at a lowermost portion, an intermediate portion 23 is formed at an intermediate portion, and a fixing base 24 is formed at an uppermost portion.

The base portion 22 and the intermediate portion 23
Are connected to each other via the remaining connecting portion 21c by the cut 21a. Thereby, the intermediate portion 23 can be opened and closed about one axis, here, the X axis with respect to the base portion 22. On the other hand, the intermediate portion 23 and the fixed base 24 are connected via the remaining connecting portion 21d by the cut 21b. Thereby, the fixed base 24 can be opened and closed around the Y axis orthogonal to the X axis with respect to the intermediate part 23.
Further, the connecting portion 21c and the connecting portion 21d have an appropriate thickness, and have an elastic force.

The base portion 22 is fixed to a metal plate of an optical device (not shown) by laser welding or the like. A fixing surface 24 a for fixing the optical element 25 is formed on the fixing surface 24 a of the fixing stand 24. This fixing surface 24
a is formed so that the fixing base 24 and the intermediate portion 23 are parallel to the bottom surface 22a of the base portion 22 in a state where the fixing portion 24 and the intermediate portion 23 are opened at a predetermined angle with respect to the base portion 22. Here, similarly to the optical element 14 of the first embodiment, a polarization dependent beam splitter (PBS) having a height, width and depth of 3 mm, for example, is used as the optical element 25.

As shown in FIG. 5, the connecting portion 2 of the intermediate portion 23
A screw hole 23a is formed near the end on the opposite side to the 1c side and in the middle part in the X-axis direction. This screw hole 23
An adjusting screw 26 is screwed into a. Adjustment screw 26
The front end portion 26a contacts the upper surface 22b of the base portion 22 so that the intermediate portion 23
The opening degree is adjusted. As the adjusting screw 26, for example, a set screw with a hexagonal hole of M1.6 is used. Then, a wrench is inserted through a hole 24b formed in the fixing base 24 and a hexagonal hole (not shown) is turned to adjust the screwing amount into the screw hole 23b. At the initial setting stage, the adjusting screw 26 is adjusted so that the intermediate portion 23 is appropriately opened with respect to the base portion 22 against the elastic force of the connecting portion 21c.

The fixing stand 24 has a screw hole 24c near the end opposite to the connecting portion 21d and in the middle portion in the Y-axis direction.
Are formed. This screw hole 24c has an adjustment screw 2
7 is screwed. The adjusting screw 27 has its tip 27
a contacts the upper surface 23b of the intermediate portion 23,
The opening degree of the fixing stand 24 with respect to the intermediate portion 23 is adjusted. As the adjusting screw 27, for example, a set screw with a hexagonal hole of M1.6 is used. By turning the hexagonal hole 37b with a wrench, the screwing amount into the screw hole 24c is adjusted. At the initial setting stage, the adjusting screw 27 is adjusted so that the fixing base 24 is appropriately opened with respect to the intermediate part 23 against the elastic force of the connecting part 21d.

Also, from below the base portion 22, the intermediate portion 2
3 and a fixing screw 28 for fixing the opening angle of the fixing stand 24 are attached. This fixing screw 28
For example, similarly to the adjusting screws 26 and 27, M1.6 hexagon socket head bolts are used. As shown in FIG. 5, the fixing screw 28 is attached to a shaft 281 in a hole 22c and a hole 23c formed substantially in the center of the base portion 22 and the intermediate portion 23, respectively.
Is penetrating. Then, the tip 281a of the shaft 281
However, as shown in FIG. 4, it is screwed with a screw hole 24d formed in the fixing base 24.

The optical element support 20 having such a configuration is
With the fixing screw 28 loosened appropriately, for example, the adjusting screw 26 is first turned with a wrench to adjust the screwing amount. When the adjusting screw 26 is screwed downward into the screw hole 23a, the intermediate portion 23 tilts in a direction to open with respect to the base portion 22 (see FIG. 5). Conversely, when the adjusting screw 26 is turned in a direction to reduce the screwing amount, the intermediate portion 23 is inclined in a direction to close to the base portion 22 by receiving the elastic force of the connecting portion 21c.
By appropriately turning the adjusting screw 26 in this manner, the angle of the optical element 25 around the X axis can be adjusted.

Next, the adjusting screw 27 is turned with a wrench to adjust the screwing amount. Adjusting screw 27 into screw hole 24c
When it is screwed downward, the fixing base 24 tilts in a direction to open with respect to the intermediate part 23 (see FIG. 4). Conversely, when the adjusting screw 27 is turned in a direction to reduce the screwing amount, the fixing base 24
Receives the elastic force of the connecting portion 21d and tilts in a direction to close the intermediate portion 23. By appropriately turning the adjustment screw 27 in this manner, the angle of the optical element 25 around the Y axis can be adjusted.

After the angle adjustment around each axis of the optical element 25 is completed, the fixing screw 28 is closed to fix the angle. Thereby, the angle is maintained. Next, a third embodiment of the present invention will be described.

FIG. 6 is a perspective view showing the structure of an optical element support according to the third embodiment of the present invention. FIG. 7 is an exploded perspective view in which the optical element support of the third embodiment is separated at each connecting portion. FIG. 8 is a view as seen from the direction of arrow D in FIG. The optical element support 30 is, similarly to the optical element support 20 of the second embodiment, basically made of a metal block 31 made of stainless steel SUS304 having a height of 5 mm, a width of 6 mm, and a depth of 6 mm. The metal block 31 has two upper and lower cuts 31a, 31b in a direction orthogonal to each other.
Are formed. Due to the formation of the cuts 31a and 31b, the base portion 32
An intermediate portion 33 is formed at an intermediate portion, and a fixed base 34 is formed at an uppermost portion.

The base portion 32 and the intermediate portion 33
Are connected to each other through the remaining connecting portion 31c by the cut 31a. Thereby, the intermediate portion 33 can be opened and closed around one axis, here, the X axis with respect to the base portion 32. On the other hand, the intermediate portion 33 and the fixed base 34 are connected to each other via the remaining connecting portion 31d by the cut 31b. Thereby, the fixed base 34 can be opened and closed around the Y axis orthogonal to the X axis with respect to the intermediate part 33.
Further, the connecting portion 31c and the connecting portion 31d have an appropriate thickness, and have an elastic force.

The base 32 is fixed to a metal plate of an optical device (not shown) by laser welding or the like. A fixing surface 34 a for fixing the optical element 35 is formed on a fixing surface 34 a of the fixing stand 34. This fixing surface 34
“a” is formed such that the fixed base 34 and the intermediate portion 33 are parallel to the bottom surface 32 a of the base portion 32 when opened at a predetermined angle with respect to the base portion 32. Here, as the optical element 35, for example, a polarization dependent beam splitter (PBS) having a height, width, and depth of 3 mm is used similarly to the optical element 14 of the first embodiment.

As shown in detail in FIG. 7, a screw hole 32b is formed at a corner of the base 32 opposite to the connecting portion 31c. An adjusting screw 36 is screwed into the screw hole 32b. The adjusting screw 36 adjusts the degree of opening of the intermediate portion 33 with respect to the base portion 32 by contacting the tip portion 36 a with the lower surface 33 a of the intermediate portion 33. As the adjustment screw 36, for example, an M1.6 hexagon socket screw is used. Then, by turning a hexagonal hole (not shown) from below the base portion 32 with a wrench, the screwing amount into the screw hole 32b is adjusted.
At the initial setting stage, the adjusting screw 36 is
The opening is adjusted so as to be appropriately opened with respect to the base portion 32 against the elastic force of the connecting portion 31c.

The fixing stand 34 has a screw hole 3
A screw hole 34b is formed on the same axis as 2b. An adjusting screw 37 is screwed into the screw hole 34b.
The adjusting screw 37 adjusts the degree of opening of the fixing base 34 with respect to the intermediate portion 33 by abutting its tip portion 37 a against the upper surface 33 b of the intermediate portion 33. As the adjusting screw 37, the same M1.6 hexagon socket set screw as the adjusting screw 36 is used. Therefore, the adjusting screw 37
Are provided on the same axis as the adjusting screw 36. By turning the hexagonal hole 37b of the adjusting screw 37 with a wrench, the amount of screwing into the screw hole 34b is adjusted. At the initial setting stage, the adjusting screw 37 is adjusted so that the fixing base 34 is appropriately opened with respect to the intermediate portion 33 against the elastic force of the connecting portion 31d.

Also, from below the base portion 32, the intermediate portion 3
3 and a fixing screw 38 for fixing the opening angle of the fixing base 34 are attached. This fixing screw 38 has
For example, a hexagon socket head cap screw of M1.6 is used similarly to the adjusting screws 36 and 37. As shown in FIG. 7, the fixing screw 38 has a shaft 381 shown in FIG. 8 penetrating through holes 32c and 33c formed substantially in the center of the base portion 32 and the intermediate portion 33, respectively. The tip 381a of the shaft 381 is screwed into a screw hole 34c formed substantially at the center of the fixed base 34.

The optical element support 30 having such a structure is
As with the optical element support 20 of the second embodiment, the fixing screw 3
In a state where 8 is appropriately loosened, for example, the adjusting screw 36 is first turned with a wrench to adjust the screwing amount. When the adjusting screw 36 is screwed into the screw hole 32b from below, the intermediate portion 33 tilts in a direction to open with respect to the base portion 32 (see FIG. 8). Conversely, adjust screw 36 in the direction to reduce the amount of screwing.
When the is turned, the intermediate portion 33 receives the elastic force of the connecting portion 31c and tilts in the direction in which it closes with respect to the base portion 32. By appropriately turning the adjusting screw 36 in this manner, the optical element 35
Can be adjusted around the X axis.

Next, the adjusting screw 37 is turned with a wrench to adjust the screwing amount. Adjusting screw 37 into screw hole 34c
When the screw is screwed downward, the fixing base 34 tilts in a direction to open with respect to the intermediate portion 33. Conversely, when the adjusting screw 37 is turned in a direction to reduce the screwing amount, the fixing base 34
Receiving the elastic force of d, it tilts in the direction to close with respect to the intermediate portion 33. By appropriately turning the adjusting screw 37 in this manner, the angle of the optical element 35 around the Y axis can be adjusted.

In the optical element support 30 of the present embodiment, the adjusting screw 36 and the adjusting screw 37 are provided on the same axis, so that when the adjusting screw 36 is tightened from above,
The part supported from below by the adjusting screw 37 of the intermediate part 33 is pushed. This prevents the intermediate portion 33 from being twisted. Similarly, even when the adjusting screw 37 is tightened from below, twisting of the intermediate portion 33 is prevented. Therefore, while adjusting the angle around one axis,
The angle around the other axis is prevented from shifting. Therefore, stable angle adjustment is possible.

The mounting position of the adjusting screw 37 does not necessarily have to be on the same axis as the adjusting screw 36. As shown in FIG. 7, the apex P1 of the distal end 36 of the adjusting screw 36 and the connecting portion 21c Is present in the triangle S1 connecting both ends P2 and P3 of the intermediate portion 33, the occurrence of twisting of the intermediate portion 33 can be prevented. In this embodiment, since the planar shape of the metal block 21 is square (6 mm × 6 mm), the axis of the fixing screw 38 provided at the center thereof also exists in the triangle S1. For this reason, the intermediate portion 33 when tightening the fixing screw 38
Can also be prevented. Therefore, more stable angle adjustment becomes possible.

Next, a fourth embodiment of the present invention will be described. FIG. 9 is a perspective view showing the configuration of an optical element support according to the fourth embodiment of the present invention. Optical element support 40 shown here
Is the optical element support 2 of the second embodiment shown in FIGS.
At 0, the positions of the adjustment screw 26, the adjustment screw 27, and the parts related thereto are changed. Therefore, the same reference numerals are given to the other same components, and the description is omitted.

In the optical element support 40, a screw hole 23d is formed at a corner of the intermediate portion 23 opposite to the connecting portion 21c side, and an adjusting screw 41 is screwed into the screw hole 23d. The adjusting screw 41 is provided with a hole 24b formed in the fixing base 24.
By inserting a wrench through the hole and turning a hexagonal hole (not shown), the amount of screwing into the screw hole 23d is adjusted.

A screw hole 24f is provided in the vicinity of the end opposite to the connecting portion 21d side of the fixing base 23 and in the middle portion in the Y-axis direction.
Are formed. The adjusting screw 4 is provided in the screw hole 24f.
2 is screwed. The adjusting screw 42 has its hexagonal hole 42
By turning b with a wrench, the amount of screwing into the screw hole 24f is adjusted.

In such an optical element support table 40, the apex of the tip 42a of the adjusting screw 42 is a triangle formed by the apex of the tip 41a of the adjusting screw 41 and both ends of the connecting portion 21c, that is, as shown in FIG. Are arranged in the triangle S1. For this reason, as compared with the optical element support base 20 of the second embodiment, it is possible to prevent the intermediate portion 23 from being twisted when the adjustment screws 41 and 42 are adjusted.

In addition, as compared with the optical element support 30 of the third embodiment, the optical element support 40 has two adjustment screws 4.
Since the members 1 and 42 can be adjusted from the same direction (upward direction), the usability is good.

Next, a fifth embodiment of the present invention will be described. FIG. 10 is a diagram showing a schematic configuration of an optical element support according to a fifth embodiment of the present invention. Here, an optical element support for angle adjustment in only one axis direction is shown. In the optical element support base 50 of the present embodiment, the metal block 51 has cuts 51a.
Forming the base portion 52 and the fixing base 53
Are formed. The base 52 and the fixed base 53 are
The connection part 51b, which is the remaining part of the cut 51a, is connected with an appropriate elastic force. The base unit 22
It is fixed to a metal plate of an optical device (not shown) by laser welding or the like. On the other hand, the optical element 57 is fixed on the fixed base 53.

A mounting piece 55 is attached to the end of the base 52 opposite to the connecting portion 51b, and an adjusting screw 56 is screwed to the mounting piece 55. The adjusting screw 56 has its shaft 56a screwed toward the cut side of the cut 51a. A wedge member 54 is inserted into the opening of the cut 51a. The shaft 56a of the adjusting screw 56 contacts the end surface 54b of the wedge member 54.

The surface 54a of the wedge member 54 is formed smoothly so that it can be smoothly inserted into the cut 51a. Then, by tightening the adjusting screw 56, the insertion amount increases, and the angle of the fixing base 53 with respect to the base portion 52 increases. Conversely, adjusting screw 5
When 6 is loosened, the wedge member 54 is pushed out toward the adjustment screw 56 by the elastic force of the connecting portion 51b. Thereby, the angle of the fixed base 53 with respect to the base part 52 becomes narrow.

Unlike the adjusting screws shown in the first to fourth embodiments, the wedge member 54 can be inserted from the side of the metal block 51 to adjust the angle of the fixing base 53. It is suitable for use in an apparatus in which many are stacked.

In the optical element supporting table 50 of the fifth embodiment, the configuration for adjusting the angle only in one axial direction has been described.
As in the second to fourth embodiments, if two cuts are made in the metal block 51 in a direction orthogonal to each other and a wedge member is inserted into each of the cuts, the angle can be adjusted in two axial directions. .

It is also possible to use a wedge member for one of the two-axis adjustment and an adjustment screw for the other.

[0048]

As described above, according to the present invention, the fixing base is connected to the base so as to be openable and closable about one axis with respect to the base by the connecting part having elasticity. Since the angle adjuster that can be adjusted within the angle range where the elastic force always works against the elastic force is attached, it is possible to adjust the inclination angle of the fixed base with respect to the base part without using parts such as springs. it can.

Therefore, the size and cost of the entire optical element support can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of an optical element support according to a first embodiment of the present invention.

FIG. 2 is a view of the optical element support of the first embodiment as viewed from the direction of arrow A in FIG. 1;

FIG. 3 is a perspective view illustrating a configuration of an optical element support according to a second embodiment of the present invention.

FIG. 4 is a view of the optical element support of the second embodiment viewed from the direction of arrow B in FIG. 3;

FIG. 5 is a view of the optical element support of the second embodiment as viewed from the direction of arrow C in FIG. 3;

FIG. 6 is a perspective view illustrating a configuration of an optical element support according to a third embodiment of the present invention.

FIG. 7 is an exploded perspective view in which the optical element support of the third embodiment is separated at each connecting portion.

FIG. 8 is a view as seen from the direction of arrow D in FIG. 6;

FIG. 9 is a perspective view illustrating a configuration of an optical element support according to a fourth embodiment of the present invention.

FIG. 10 is a diagram showing a schematic configuration of an optical element support according to a fifth embodiment of the present invention.

FIG. 11 is a diagram showing a schematic configuration of a conventional optical element support base.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Optical element support stand 11 Metal block 11a Cut 11b Connection part 12 Fixation stand 13 Base part 14 Optical element 15 Adjustment screw 16 Fixation screw

Claims (8)

[Claims] 1. An optical element supporter supporting an optical element and capable of adjusting an angle, a fixed base to which the optical element is directly fixed, a base part supporting the fixed base, and the base fixed to the base. A connecting portion connected to the base portion with elastic force so as to be openable and closable about one axis with respect to the portion; and a fixing stand attached to the base portion so as to resist the elastic force of the connecting portion. And an angle adjuster capable of adjusting the inclination angle of the elastic member within an angle range in which the elastic force always acts. 2. The optical element support according to claim 1, further comprising a fixing member for fixing an inclination angle of the fixing table. 3. The fixing base and the base portion are formed separately by forming a cut in one member,
The optical element support according to claim 1, wherein a portion left by the cut is configured to be the connection portion. 4. The optical element support according to claim 1, wherein the angle adjusting section is a screw member. 5. The angle adjusting section is formed in a shape diverging from a front end side, and adjusts an insertion member whose front end section is inserted into the fixed base and the base section, and an insertion amount of the insertion member. The optical element support according to claim 1, further comprising an adjusting screw. 6. An optical element supporter supporting an optical element and capable of adjusting an angle, a fixed base to which the optical element is directly fixed, a first base supporting the fixed base, and the fixed base. A first connecting portion having an elastic force to connect to the first base portion so that the first connecting portion can be opened and closed around a first axis with respect to the first base portion; A first angle adjustment unit attached so as to oppose an elastic force and capable of adjusting an inclination angle of the fixed base with respect to the first base unit within an angle range in which the elastic force of the first connection unit always operates. A second base that supports the first base, and the first base is openable and closable about a second axis orthogonal to the first axis with respect to the second base. As described above, the second base member connected to the second base portion with elastic force
And the second connecting portion is attached so as to oppose the elastic force of the second connecting portion, and the elastic force of the second connecting portion always determines the inclination angle of the first base portion with respect to the second base portion. And a second angle adjuster that can be adjusted within a working angle range. 7. The first angle adjusting section has a power point,
The optical element support according to claim 4, wherein the optical element support is provided to be located inside a triangle formed by a power point of the second angle adjustment unit and both ends of the second connection unit. 8. The power point of the first angle adjusting section and the second point
6. The optical element support according to claim 5, wherein the power points of the angle adjusting portions are provided so as to be located on the same axis.