JPS61160711A - Reflection mirror controller - Google Patents

Abstract

PURPOSE:To control plural reflection mirrors simultaneously easily by controlling the X axis and the Y axis independently of each other. CONSTITUTION:A slider 12b shifted by 90 deg. is fixed by a screw 10b for the purpose of controlling only one axis. When a holder control shaft 9a is turned left, the holder control shaft 9a is moved to the opposite side of a holder 3, and a slider 12a is moved to the side of the holder 3 in accordance with this movement, and consequently, the angle of a reflection mirror is changed as shown in the figure, and he optical path of a laser light is changed. After this control is terminated, the slider 12a and the holder control shaft 9a are fixed by a screw 7a and a screw 10a. The screw 10b of the slider 12b is loosened to make the slider 12b slidable for the purpose of changing another optical path, and the similar control is performed to change the optical path.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a reflecting mirror adjusting device that can freely adjust the optical path of a laser beam or the like.

2. Description of the Related Art FIG. 7 shows a basic optical system in an optical printer that generally uses laser light. 101 is a laser, 102 is a laser beam oscillated by the laser, and 103 is an 0N-O laser beam.
The optical modulator 104 that performs FF is a reflecting mirror 1, and the optical path is adjusted by fine adjustment with the reflecting mirror 106. Reference numerals 106 and 107 are lenses, and the diameter of the laser beam can be arbitrarily varied by combining the lenses. The optical path of the laser beam that has passed through the lens 7 is adjusted by the reflecting mirror 108 so that it enters the polyhedral scanner 109 . Due to the rotation of the polyhedral scanner 109, the laser beam 102 passes through the f-θ lens 110,
The photoreceptor 112 is scanned with the position lens 111 as a reference. Therefore, it becomes possible to record characters or images using signals from the control system. Here, conventional configurations of the reflecting mirror 6 and the reflecting mirror 8 are shown in FIGS. 8 to 10. In the figure, a reflecting mirror 201 has a mirror surface 202 on its surface. Reflector 201 is fixed to holder 203. A holder shaft 204 is swingably attached to the holder 203, and the holder shaft 204 is fixed to a frame 205. A holder adjustment screw 206 is attached to the frame 205.
They are screwed together at positions divided into three on a concentric circle centered on . By moving the holder adjusting screw 206 forward and backward, the reflecting mirror 201 can freely swing and change the optical path. After adjustment,
The puller adjustment screw 206 is fixed with lock paint or the like.

Problems to be Solved by the Invention In such a conventional system, the optical path of the laser beam 2 cannot be adjusted separately for the X-axis and the Y-axis with respect to the optical axis because it is supported at three points. In particular, it is extremely difficult to simultaneously adjust the reflecting mirrors 104 and 106 in FIG.

The present invention has been made in view of this problem, and an object of the present invention is to provide a reflecting mirror adjustment device that has a simple configuration and allows easy optical path adjustment.

In order to solve the above-mentioned problem, the present invention has four adjustment points on the X axis, ! The l-Y axes can be adjusted separately, and one axis can be adjusted by adjusting at one location.

For production The effect of this technical means is as follows.

That is, a holder shaft, which is swingably attached to a holder to which a reflecting mirror is fixed, is held in a fitted state with the frame. The holder shaft is used as a fulcrum, and four points of application are provided concentrically with the holder shaft. A pair of symmetrical points of action are provided, with a holder adjustment shaft on one side and a slider pressed against the holder by a spring on the other.The slider moves in conjunction with the movement of the holder adjustment shaft, and the reflector rotates relative to the other point of action. move.

The holder can be rotated in the 900 direction by moving another holder adjustment shaft forward or backward. As described above, it is possible to adjust one axis by adjusting one location, and to adjust the optical path without affecting other axes.

Example Embodiments of the present invention will be described below based on the accompanying drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a reflecting mirror, which has a mirror surface 2. In FIG.

Reflector 1 is fixed to holder 3. A holder shaft 4 is swingably mounted on the holder 3, and the holder shaft 4 is fitted into a frame 6. A cap 7 is attached to the other end of the holder shaft 4 via a spring 6 with an E ring 8. Therefore, the holder shaft is pressed in the opposite direction to the holder 3 by the action of the spring 6. 9
a is a holder adjustment shaft that is screwed into the frame 6;
It also has a shaft portion and can be fixed to the frame 6 with a screw 10a. A spring 11 is installed at a symmetrical position to the holder adjustment shaft 9a.
A slider 12a is provided which is pressed against the holder 3 side by a slider 12a and is slidably supported. Slider 12a
can also be fixed to the frame 6 with screws.The combination of this holder adjustment shaft 9 and slider 12 is 90°.
There are two locations. Next, the operation will be explained with reference to FIG. In the figure, the slider 12b that is offset by 900 degrees is fixed with the screw 10b. This is because only one axis is adjusted. When the holder adjustment shaft 9a is turned to the left, the holder adjustment shaft 9a moves to the side opposite to the holder 3, and in conjunction with this, the slider 12a moves to the holder 3 side. Therefore, the angle of the reflecting mirror changes as shown in the figure, and the optical path of the laser beam is changed. When the adjustment is completed, the slider 12a and the holder adjustment shaft 9a are fixed with the screws 7a and 10a. In order to change the other optical path, the screw 10b of the slider 12b is loosened to allow the slider to slide, and a similar adjustment is made.

This makes it possible to change the optical path. Figure 4.

FIGS. 6 and 6 show another embodiment in which the holder shaft 4 is fixed to the frame 6, and the number of parts can be reduced. The operation is similar to the adjustment method described above. In the system shown in FIG. 3, the reflecting mirror 1 can be easily replaced and maintenance is easy.

Effects of the Invention In the present invention, when adjusting the optical path of an optical printer or the like using a laser beam or the like, since the X-axis and Y-axis can be adjusted separately, it is possible to simultaneously adjust a plurality of reflecting mirrors, and the adjustment can be easily performed. Ru. Furthermore, the parts are relatively simple and inexpensive, and maintenance can be facilitated.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a reflecting mirror adjusting device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a cross-sectional view showing an optical path adjustment state, and FIG. FIG. 6 is a cross-sectional view showing an example, FIG. 6 is a plan view of the same, FIG. 6 is a cross-sectional view showing an optical path adjustment state, FIG. 7 is an explanatory diagram of a laser optical system, and FIG. 8 is a cross-sectional view showing a conventional reflecting mirror adjustment device. FIG. 9 is a plan view, and FIG. 10 is a sectional view showing the optical path adjustment state. 1...Reflector, 3...Holder, 4.
...Holder shaft, 6...Frame, 9.
...Holder adjustment axis, 12...Slider. Name of agent: Patent attorney Toshio Nakao and 1 other name 1
Figure 1-11 Reflector? -1
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n(3) 103--one optical modulator 109--49
Hemomata 6t-104 --- fi mi shooting 1 puhi, (1 n
tto---J-e' Length 106-
---Tile shooting (2) III ---ti 7Y
106--Lance nz-1 rank, 1 item Fig. 8 201--1 reflecting mirror 20
Z---direction FIG. 9 110 FIG. 2o1---L mirror zo2---4% il.

Claims (2)

[Claims] (1) A reflecting mirror having a mirror surface, a holder for fixing the reflecting mirror, a holder shaft swingably attached to the holder, a frame on which the holder shaft is slidably supported, and the holder shaft. At least one of the pair has a spring that presses the holder in the opposite direction to the holder side, and the position of at least one of the pair is adjustable on a concentric circle with the holder shaft as a fulcrum, and the position of the reflecting mirror in the X-axis direction and the Y-axis direction is adjusted respectively. A reflector adjusting device characterized in that two pairs of action points are provided for adjusting the inclination. (2) The reflector adjusting device according to claim 1, wherein the other end of the holder shaft is fixed to a frame.