JPH02245747A - Photographing device - Google Patents

Abstract

PURPOSE:To miniaturize a photographing device and to reduce trouble such as disconnection by photographing an observation plane via first-third reflecting mirrors by means of a camera. CONSTITUTION:A direct acting table 1 is provided with the first reflecting mirror 4, which is provided at the intersection of the rotation axis of a turntable 3 and the center line in the photographing direction of the camera 2. The turntable 3 is provided with the second and third reflecting mirrors 5 and 6. The first-third reflecting mirrors 4-6 are arranged under the prescribed, positional relations so that light reflected from the observation plane 7 reaches the camera 2 after being reflected as shown by the arrows. As a result, the amount that a signal conductor connected to the camera moves can be naturally minimized, the fatigue of the signal conductor can be reduced, and a base, etc., on which the camera is fixed does not project from an area to be observed. Therefore, the disconnection of the signal conductor can be reduced, and also the device can be miniaturized.

Description

[Detailed Description of the Invention] Summary The present invention relates to a device that captures images on a two-dimensional plane that is wider than the imageable area of a camera. In a photographing device equipped with means for moving the camera to photograph a wider area than the photographable area, the camera is fixed to a linear motion table that is reciprocated in one direction by a drive means, and the drive means is attached to the linear motion table. A rotary table that is rotationally driven by a rotary table is integrally provided, a first reflecting mirror is fixed on the rotational center axis of the rotary table of the linear motion table, and a second reflecting mirror is fixed on the rotational center axis of the rotary table. A third reflecting mirror is fixed at a distance from the rotation center axis of the rotary table in the direction of the rotation radius, and the observation surface is photographed by a camera through the first, second, and third reflecting mirrors. Configure it as follows.

INDUSTRIAL APPLICATION FIELD OF THE INVENTION The present invention relates to an apparatus for photographing images on a two-dimensional plane that is wider than the photographable area of a camera.

In devices that take two-dimensional images such as figures, maps, photographs, etc. with a camera and, for example, binarize them and create a database as digital information, or analyze the images with a computer, the area that can be photographed by the camera is Since it may be necessary to photograph a large area, the camera is configured to move on a two-dimensional plane to cover the entire area to be photographed.

In devices equipped with such means for moving the camera, the cables connected to the camera may become fatigued due to the movement of the camera and may cause problems such as disconnection. Provision of photographic equipment is requested.

2. Description of the Related Art The configuration of a conventional photographing device will be explained with reference to FIGS. 6 and 7. Reference numeral 10 is a camera for photographing an observation surface, and this camera 10 is fixed to a camera mount 12. . A through hole 12a1 and a screw hole 12b are formed in the camera mount 12, and a linear guide 14 is fitted into the through hole 12a, and a ball screw 16 is screwed into the screw hole 12b. Both ends of the linear guide 14 are fixed to fixed members 18.20, and both ends of the ball screw 16 are rotatably supported by the fixed members 18.20.

A motor 22 for rotationally driving the ball screw 16 is attached to the fixed member 18 . This fixing member 18 is formed with a screw hole that penetrates in a direction perpendicular to the linear guide 14 and the ball screw 16, and a ball screw 24 is screwed into this screw hole. Both ends of the ball screw 24 are rotatably supported by support members 26 and 28, and the support member 26 includes a motor 3 that rotationally drives the ball screw 24.
0 is attached.

A through hole is formed in the other fixed member 20 in a direction perpendicular to the linear guide 14 and the ball screw 16, and a linear guide 32 is fitted into this through hole. Both ends of the linear guide 32 are fixed to support members 34,36. 38 is a signal line for the camera.

However, the motors 22 and 3 are controlled by a control means (not shown).
0 is rotationally driven, the ball screws 16 and 24 are rotated, and the camera 10 is moved in the X direction and in the X direction, so that the entire area of the observation surface 40 can be photographed.

Problems to be Solved by the Invention However, due to the configuration of conventional imaging devices, the exclusive area of the device requires a larger area than the maximum area of the surface to be observed. As shown in FIG. 2, in order to photograph the end of the observation surface 40 with the camera 10, the camera mount 12 and the like must protrude from the end of the observation surface. .

Furthermore, since the signal line connected to the camera is routed over the entire photographing area as the camera moves, there is a problem in that the signal line may become fatigued and break.

The present invention has been made in view of these points, and an object thereof is to provide a photographing device which is small in size and has fewer problems such as disconnection.

Means for Solving the Problems Referring to the principle configuration diagram of the present invention shown in FIG. 1, a linear motion table 1 that is reciprocated in one direction by a driving means
A camera 2 is fixed to the linear motion table 1, and a rotary table 3 which is rotationally driven by a driving means is integrally provided to the linear motion table 1. A first reflecting mirror 4 is provided on the linear motion table 1. This first reflecting mirror 4 is provided at the intersection of the rotation center axis of the rotary table 3 and the center line of the camera 2 in the photographing direction. A second reflecting mirror 5 and a third reflecting mirror 6 are provided on the rotating table 3.

The second reflecting mirror 5 is provided on the rotation center axis of the rotary table 3, and the third reflecting mirror 6 is provided spaced apart from the rotation center of the rotary table 30 in the rotation radius direction.

These first, second, and third reflecting mirrors 4.5.6 reflect the light reflected from the observation surface 7 as shown by the arrows in the figure and direct the light to the camera 2.
They are arranged in a predetermined positional relationship so as to reach each other.

Function: According to the photographing device according to the present invention, a rotary table is provided on a linear motion table, and three reflecting mirrors are arranged at predetermined positions. We try to cover the entire shooting area. That is, referring to FIG. 2, by moving the linear motion table to move the camera to position A, and rotating the rotary table so that the third reflecting mirror 6 is located at one end of the observation surface, One end of the observation surface can be photographed, the linear motion table is moved to position B in the figure, and the rotary table is rotated so that the third reflecting mirror 6 is located at the other end of the observation surface. This allows the other end of the observation surface to be photographed.

The photographable area according to the configuration of the present invention is an oblong-shaped area as shown in FIG. 3, and as can be seen from the figure,
The amount of movement of the camera is equal to the amount of movement of the linear motion table, and the amount of movement of the translation table compared to the observation area is By increasing the distance (distance), the distance can be proportionally reduced. This naturally reduces the amount of movement of the signal line connected to the camera.
Since fatigue of the signal line is reduced, failures such as wire breakage can be reduced.

In addition, by reducing the amount of movement of the camera compared to the area to be observed, it is possible to prevent the table on which the camera is fixed from protruding from the area to be observed, which also makes it possible to reduce the size of the device. can.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

4 and 5 are diagrams for explaining the configuration of a photographing device to which the present invention is applied, with FIG. 4 being a side sectional view and FIG. 5 being a partially cutaway plan view.

Reference numeral 50 denotes a linear motion table, and the linear motion table 50 has a cylindrical portion 50a opening upward in the figure at its center, and a camera mounting base 50b and a motor mounting base 50c formed around it. There is.

A photographing camera 54 to which a signal line 52 is connected is fixed on the camera mount 50b, and a table rotation motor 56 is fixed on the motor mount 50C. The cylindrical portion 50a has an open side facing the camera 54, and a first mirror 58 is fixed to the bottom of the cylindrical portion 50a.

A rotary table 60 is rotatably attached to the outside of the cylindrical portion 50a of the linear motion table 50 by a bearing 62, and this rotary table 60 is connected to a gear portion 60a1.
and a table portion 60b. The gear portion 60a of the rotary table 60 includes a motor 5 for rotating the table.
A gear 64 attached to 6 is engaged with the gear 64. On the table portion 60b, a second mirror 66 is placed on its rotation center axis.
A third mirror 68 is fixed at a distance from the central axis of rotation.

The first, second, and third mirrors 58, 66, and 68 are fixed in a predetermined positional relationship as shown in FIG. , 58.
The observation surface can be photographed by the camera 54 due to the reflection by 66 and 68.

A ball screw 70 is screwed into the linear motion table 50, and the ball screw 70 is rotationally driven by a drive motor 72. As a result, the linear motion table 50
can be moved back and forth.

According to this embodiment, the rotary table 60 is provided integrally with the linear motion table 50, and the three mirrors 58, 66, and 68 are arranged at predetermined positions, so that the camera 54 does not need to be moved. By rotating only the rotary table 60, it is possible to photograph a circular observation surface, and by adding unidirectional movement of the translation table 50 to this, it is possible to photograph a two-dimensional plane.

With this configuration, the photographable area becomes an elongated circle, and the length in the longitudinal direction of the area is equal to the linear motion table's 500 strokes plus twice the distance between the second mirror 66 and the third mirror 68. , the length in the lateral direction is twice the distance between the second mirror 66 and the third mirror 68. On the other hand, the movement of the camera 52 is only in one direction, and the amount of movement of the camera 52 is significantly smaller than the length of the photographing area in the longitudinal direction, so the movement of the signal line is naturally reduced. Wire breakage due to fatigue can be reduced. Furthermore, since the stand on which the camera is fixed can be constructed so as not to protrude from the observation area, the apparatus can be downsized.

Effects of the Invention Since the present invention is configured as detailed above, the movement of the camera is one-dimensional, and the amount of movement can be made small compared to the photographable area. This has the effect of reducing wire breakage due to wire fatigue and making it possible to downsize the device.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the basic structure of the present invention, Figs. 2 and 3 are detailed explanatory drawings of the present invention, Fig. 4 is a side cross-sectional view of an embodiment of the present invention, and Fig. 5 is a partially broken plane. 6 is a plan view of the prior art, and FIG. 7 is a diagram showing problems with the prior art. DESCRIPTION OF SYMBOLS 1... Directional table, 2... Camera, 3... Rotating table, 4... First reflecting mirror, 5... Second reflecting mirror, 6... Third reflecting mirror, 7. ...Observation side. 1: Mismatch tape 7

Claims (1)

[Claims] In a photographing device equipped with a means for moving a camera in order to photograph a wider area than the photographable area of the camera, a linear motion table (
A camera (2) is fixed to the linear motion table (1), a rotary table (3) rotatably driven by a driving means is integrally provided to the linear motion table (1), and the rotary table (3) of the linear motion table (1) is ), a first reflecting mirror (4) is fixed on the central axis of rotation of the rotary table (3), a second reflecting mirror (5) is fixed on the central axis of rotation of the rotary table (3), and A third reflecting mirror (6) is fixed at a distance from the rotation center axis in the direction of the rotation radius, and the observation surface (7) is fixed to the first, second, and third reflecting mirrors (4, 5, 6).
) A photographing device characterized in that a photograph is taken by a camera (2) through a camera (2).