JPH06148493A - Optical parts holding device - Google Patents

Abstract

PURPOSE:To adjust an angle in a holding device main body without changing an optical reference position by fixing optical parts on the cut plane of a fixing tool, fitting the outer surface of the fixing tool and the surface of the recessed part of a holding tool, and making them slide. CONSTITUTION:As to the optical parts fixing tool 10, one part of the outer surface has a spherical shape and the center of curvature is set as R. The optical part 5 is a plane-convex lens, for example, and is arranged in the fixing tool 10 so that the center C of an oblique line part being the optical reference position may be aligned with the R. Furthermore, the fixing tool 10 is arranged to be brought into contact with a fixing tool holding tool 20 having a recessed part whose surface is the spherical shape having the same curvature as the spherical outer surface of the fixing tool 10. Therefore, the center C of the optical reference position of the optical part 5 is not changed even when the fixing tool 10 is moved with an X-axis as a rotary shaft clockwise and counterclockwise with respect to the holding tool 20. Then, the center C of the optical reference position is not changed even when the tool 10 is moved with a Y-axis as a rotary shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for holding an optical component (eg, lens).

[0002]

2. Description of the Related Art There are various gripping devices for optical components, and there are conventional gripping devices having an angle adjusting mechanism in the gripping device body. However, the optical reference position peculiar to the optical component to be gripped is
However, there is a drawback that it is limited to parts that coincide with the rotation axis of the angle adjusting mechanism.

[0003]

However, there are various types of optical components in which the optical reference position peculiar to the optical component is located other than the rotation axis of the angle adjusting mechanism, and a gripping device with an angle adjusting mechanism therefor is not particularly known. .

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is, for example, a rotation axis of an angle adjusting mechanism in which an optical reference position peculiar to an optical component is an optical reference position such as a main plane of an optical lens. To provide a gripping device having a gripping device main body provided with an angle adjusting mechanism for gripping an optical component which is not located at the position.

[0005]

According to the present invention, which achieves the above object, a substantially hemispherical optical component fixture in which a part of the outer surface is a spherical surface having a specific curvature, and the surface of the recess is a spherical surface having the same curvature. A holder, an optical component is fixed on a cutting plane of the fixture, and an outer surface of the fixture and a surface of a recess of the holder can be fitted and slid. Is an optical component gripping device.

[0006]

According to the apparatus of the present invention, even if the optical reference position peculiar to the optical component is located on a position other than the rotation axis of the angle adjusting mechanism, the optical reference position is made to coincide with the center of curvature of the gripping device which is a part of the sphere. As a result, the angle can be adjusted by the gripping device body without the optical reference position moving.

Further, by moving the fixing member to which the optical component is fixed along the spherical surface of the holding member, it is possible to adjust the holding angle of the optical component in an arbitrary direction without the need for the fixed rotating shaft.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the embodiments, mechanical devices necessary for gripping are omitted to simplify the description.

<Embodiment 1> FIG. 1 is a perspective view showing, as a first embodiment of the present invention, a conceptual device configuration of a mechanism in which an optical component fixture and a fixture holder are closely held by spherical contact. It is a figure. A part of the outer surface of the optical component fixture 10 has a spherical shape, and the center of curvature thereof is R. Optical component 5
Is a plano-convex lens, for example, and is arranged in the optical component fixture 10 so that the center C of the shaded portion, which is the optical reference position, coincides with R. Further, the optical component fixture 10 is arranged in close contact with a fixture holder 20 having a recessed surface having a spherical shape with the same curvature as the spherical outer surface of the optical component fixture 10.

FIG. 2 is a sectional view of the YZ plane in FIG. 3 and 4 show the optical component fixture 10 in the clockwise direction (CW) with the X axis as the rotation axis in FIG.
FIG. 7 is a cross-sectional view of the YZ plane showing that the center C of the optical reference position of the optical component 5 does not change even when it is moved counterclockwise (CCW) with respect to the fixture 20.

FIG. 5 is a sectional view taken along the XZ plane in FIG. 2. As with the sectional view taken along the YZ plane in FIG. 2, even if the Y-axis is moved as a rotation axis, the center C of the optical reference position does not change. Show.

FIG. 6 is a cross-sectional view of the YZ plane, in which the optical component fixture 1 with respect to the fixture holder 20 with the X axis as the rotation axis.
The apparatus structure of the means which moves 0 is shown. The arm 30 is an annular flat plate having a shape extending in the circumferential direction of the cross section of the optical component fixture 10, and is arranged concentrically on the cross section of the optical component fixture 10. The optical component fixture 10 is moved with respect to the fixture holder 20 by moving the push rod 40 horizontally with respect to the arm 30 with respect to the Z axis.

FIG. 7 shows an optical component fixture 10 in FIG.
It is explanatory drawing which shows the apparatus structure of the means to hold | grip the fixture holder 20 closely. The arm 30 arranged on the optical component fixture 10 and the fixture holder 20 are tightly held by a spring 50 that attracts each other in the horizontal direction with the Z axis. Spring 50
Are fixed by a spring fixing jig 60.

<Embodiment 2> FIG. 8 is a sectional view of the YZ plane showing a second embodiment of the present invention. In this example, the optical component fixture 10, the fixture holder 20, the arm 30, the pushing rod 40, the spring 50, and the spring fixing jig 60 in the device shown in <Example 1> are provided with mechanical devices. The same components as those in <Example 1> are designated by the same reference numerals.

In FIG. 8, the extrusion unit 80 has a Z
A guide rod hole 70 that allows the push-out rod 40 to come into contact with the arm 30 is provided in the direction parallel to the axis, and is fixed to the fixture holder 20 with a connecting jig 90.

According to this embodiment, the X-axis and the Y-axis perpendicular to each other are used.
By moving the optical component fixture 10 to any angle with respect to the fixture holder 20 by moving in two directions with the axis as the rotation axis, the YZ plane shown in FIG. FIG. 9 shows a perspective view of a device configuration in which the configuration of the sectional view of FIG.

<Third Embodiment> FIG. 10 is a sectional view taken along the YZ plane showing a third embodiment of the present invention. The present embodiment is an example of a configuration in which, even when a light ray is transmitted through a transparent optical component 5 such as a plano-convex lens, the light ray after transmission is not blocked by the gripping device and an optical path can be secured. . The gripping device includes an optical component fixture 110 and a fixture holder 1.
It consists of 20. In FIG. 10, for example, the light beam is
The light enters from the left side of the optical component, passes through the gripping device, and exits to the right side. At this time, the region of the optical path secured so that the light beam emitted after passing through the optical component can be shown by the diagonal lines.

FIG. 11 is an explanatory view showing a state in which the transmissive optical component fixture 110 is moved by an angle θ on the YZ plane with respect to the transmissive fixture holder 120 in FIG. Figure 10
Shows that, even if the X axis is moved as an axis of rotation by an angle θ, the optical path after transmission is secured without being blocked.
The secured area is shown by the shaded area in the figure.

<Fourth Embodiment> FIG. 12 is a perspective view showing a fourth embodiment of the present invention. Fine adjustment micrometer 1 equipped with an extrusion size display of the extrusion rod 40 in FIG.
The micrometer fixing jig 140
It is fixed at. The same components as those in FIG. 9 are designated by the same reference numerals. Further, as shown in <Example 3>, in the case of holding a transparent optical component, instead of the optical component fixture 10 and the fixture holder 20, the transmission optical component fixture 110 and the transmission fixture fixture are used. It is possible to use 120.

<Fifth Embodiment> FIG. 13 is a perspective view showing a fifth embodiment of the present invention.
The structure which can be attached to a well-known annular optical lens holder is shown. In FIG. 13, the device 150 has a cylindrical shape, and the guide rod hole 70, the extrusion unit 80, and
This is an apparatus in which the connecting jig 90 is expanded and integrated with the fixed holder 20 in the circumferential direction. Further, as in the case of <Example 4>, in the case of gripping a transparent optical component, as in the case of the fixed holder 20, the transparent fixed holder 120 is provided with the expanded integrated device 160 shown in FIG. This is achieved by using it in combination with the fixture 110. FIG. 14 is a perspective view showing the structure of the device 160. The device 170 is a ring-shaped mounting jig having a hollow cylindrical shape for mounting on a well-known ring lens holder. The same components as those in <Embodiment 4> are designated by the same reference numerals.

[0021]

As described above, according to the optical component gripping device of the present invention, the angle can be adjusted by the gripping device main body, centering on the optical reference position peculiar to the optical component, regardless of the transmissivity / reflectivity. Therefore, the grasping angle can be easily changed without disposing an adjusting mechanism in which a fine coarse movement stage is combined outside the conventional optical component grasping device.

[0022]

[Brief description of drawings]

FIG. 1 is a perspective view showing a conceptual device configuration of a mechanism in which an optical component fixture and a fixture holder are closely held by spherical contact.

FIG. 2 is a sectional view on the YZ plane in FIG.

FIG. 3 is a sectional view on a YZ plane rotated in the CW direction with the X axis as a rotation axis.

FIG. 4 is YZ rotated in the CCW direction with the X axis as a rotation axis.
Sectional drawing on a plane.

5 is a cross-sectional view on the XZ plane in FIG.

FIG. 6 shows an optical component fixture with respect to the fixture holder, X
YZ showing a device configuration of means for moving the shaft as a rotation axis
Sectional drawing on a plane.

FIG. 7 is a cross-sectional view on the YZ plane showing the device configuration of the contact gripping means in FIG.

FIG. 8 is a cross-sectional view on the YZ plane showing the device configuration of the second embodiment.

9 is a perspective view showing a device configuration in which the configuration of the cross-sectional view of the YZ plane shown in FIG. 8 is also arranged on the XZ plane.

FIG. 10 is a cross-sectional view on the YZ plane showing the configuration of the third embodiment.

FIG. 11 is a cross-sectional view showing that the optical path after transmission is not blocked when moved by an angle θ on the YZ plane.

FIG. 12 is a perspective view showing a device configuration of a fourth embodiment.

FIG. 13 is a perspective view showing the device configuration of a fifth embodiment.

14 is a perspective view of the integrated fixing holder for transmissive optical components in FIG. 13. FIG.

[Explanation of symbols]

5 ... Optical component (plano-convex lens) 10 ... Optical component fixing tool 20 ... Fixing tool holder 30 ... Arm 40 ...
-Extrusion rod 50 ... Conductor hole 60 ... Extrusion unit 70-
..Connecting jig 80 ... Spring 90 ... Spring fixing jig 100 ...
・ Optical component fixing jig 110 ・ ・ ・ Transmissive optical component fixing tool 120 ・ ・ ・ Transmissive fixing tool holder 130 ・ ・ ・ Fine adjustment micrometer 140 ・ ・ ・ Micrometer fixing jig 150 ・ ・ ・ Integral fixed holding Tool 160: Integrated fixing holder for transmissive optical components 170: Ring mounting jig

Claims (1)

[Claims] 1. A device for gripping an optical component, comprising: a substantially hemispherical optical component fixture having a part of the outer surface of which is a spherical surface having a specific curvature; and a holder having a recessed surface which is the spherical surface of the same curvature. Has an optical component fixed on the cutting plane of the fixture,
An optical component gripping device, characterized in that the outer surface of the fixture and the surface of the recess of the holder can fit and slide.