JPH0583714U - 2-axis tilt stand - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a structure of a tilting table that allows two-axis tilting adjustment of minute optical components with high accuracy. [Structure] The main body 10 made by bending a plate-shaped material made of an elastic material such as adjacent bronze is folded back into a U shape, and a circular or square hole 11 is formed in the center of the upper side to form a leaf spring. Portion 10A that functions as a portion and a portion 1 in which the side edge portion 9 is bent and rigidified so that the cross-section has a channel shape.
0B, and is fixed to the base 12 by a main body fixing screw 4 that serves as a rotation shaft and an adjusting screw 5 in the tilt direction 8. The rotation direction 7 can be finely adjusted by inserting the pin 14 into the hole 13 formed in the main body 10, piercing the hole 15 on the base 12, and tilting the upper portion of the pin 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mechanism for finely adjusting optical components such as a beam splitter and a prism in two axial directions with high precision.

[0002]

[Prior Art]

 Although a large 5 cm square fine movement device that can be installed on an optical bench is commercially available, no two-axis tilting mechanism, which is an ultra-small and finely adjustable optical component, is found. As a small biaxial tilt mechanism, for example, as shown in FIG. 1, a system using an elastic plate-shaped main body as a plate panel can be easily considered. This is a system in which the screw 4 is rotatable in the direction 7, the deformation of the elastic body 1 is used, and the screw 5 is adjusted to move in the direction 8 to perform biaxial tilt adjustment.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 2, in the conventional technique, the bent portion 2 is not bent, and the entire portion including the fixing portion 3 of the optical component 6 such as a prism is uniformly deformed, and the optical component 6 fixed with an adhesive or the like may be peeled off. There is.

[0004]

[Means for Solving the Problems]

 One end side of the main body made of one elastic plate is folded back in a U-shape, and the lower side of the folded back portion is fixed to the base by the first screw member passing through the hole provided on the upper side of the folded back portion. Outside the folded-back portion of the elastic plate, both sides of the attachment are bent into a channel shape to make it rigid, and a long hole extending in the width direction is provided near the end opposite to the folded-back portion. By the second screw member, the first screw member was fixed so that the rotation angle in the horizontal direction about the rotation center could be adjusted.

[0005]

[Action]

 The fine movement in the horizontal direction is performed around the first screw member, and the vertical movement can be performed by adjusting the second screw member. Optical parts such as prisms are fixed to the portion reinforced as a channel shape with an adhesive or the like.

[0006]

【Example】

 3 and 4 show an embodiment of the present invention. The main body 10 made by bending a plate-shaped material made of an elastic material such as one adjacent bronze is folded back into a U shape, and a circular or square hole 11 (screw head) is formed at the center of the upper side. (The size is such that the part can pass freely) is divided into a part 10A that functions as a leaf spring and a part 10B in which the side edge part 9 is bent so that the cross section has a channel shape, and the part 10B is made rigid. It is fixed to the base 12 by the main body fixing screw 4 and the adjusting screw 5 in the tilt direction 8.

A hole 41 is provided on the lower side of the folded portion 10 A, and is fixed to the base 12 by the first screw 4 passing through the hole 41. On the other end side of the main body 10, there is provided an elongated hole 16 extending in the width direction and forming a part of an arc centered on the screw hole 41. The second screw 5 passing through the elongated hole 16 allows the base 12 to pass through. Fixed to. That is, if the tightening degree of the screw 5 is adjusted, the vertical tilt angle of the optical component 6 can be adjusted, and within the movable range of the screw 5 within the long hole 16, within the horizontal plane centered on the first screw 4. You can adjust the rotation angle at. In the illustrated example, the rotation direction 7 can be finely adjusted by inserting the pin 14 into the hole 13 formed in the main body 10, piercing the hole 15 on the base 12, and tilting the upper portion of the pin 14.

[0008]

[Effect of the device]

 The present invention can use a low-cost material by cutting and bending one elastic metal plate, the part that gives rigidity is made into a channel shape, and the folding side part to be deformed is also used as a hole for screw penetration. In addition, the hardness of the spring can be adjusted by adjusting the size of the hole. In addition, since the rigid part does not deform during tilt adjustment, the optical components can be fixed directly with an adhesive without using a highly rigid metal plate in between. Since the structure is extremely simple, assembly and adjustment time can be greatly shortened.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a conventional tilting stand.

FIG. 2 is a side view for explaining the problems of the conventional tilting stand.

FIG. 3 is a perspective view showing an embodiment of the present invention.

FIG. 4 is a side view of the tilt base of FIG.

[Explanation of symbols]

 4: Fixing screw (first screw member) 5: Tilt amount adjusting screw (second screw member) 6: Optical component (attachment) 7: Horizontal tilt direction 8: Vertical tilt direction 9: Side edge part 10: Main body 11: Fixing screw insertion hole 12: Base 13: Main body horizontal tilt fine adjustment hole 14: Horizontal tilt fine adjustment pin 15: Base horizontal horizontal fine adjustment hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Toshiaki Tanaka 3-5-11 Doshomachi, Chuo-ku, Osaka-shi, Osaka Inside Nippon Sheet Glass Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A main body made of one elastic plate is folded back in a U-shape, and a hole allowing passage of a screw head is provided on an upper side of the folded back portion, and a first screw passed through the hole. The lower side of the folded back is fixed to the base by a member, and outside the folded portion of the elastic plate, both side edges of the attachment are bent to be rigid, and a long hole extending in the width direction is provided near the end. A biaxial tilting base fixed by a second screw member passing through a hole so that the rotation angle in the horizontal direction about the first screw member can be adjusted.