JP2001218229A - Position adjustment structure for solid-state image pickup element for stereoscopic image pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic image pickup device, having 2 television cameras placed in the horizontal direction where a color separation prism fitted to the television cameras is provided freely slidably in the horizontal direction, an adjustment means to adjust the horizontal position is provided to adjust the position of the color separation prism in the horizontal direction, thereby adjusting a stereoscopic sense, in response to the observation condition through the adjustment of the horizontal position of a solid-state image pickup element fitted to the color separation prism. SOLUTION: A color separation prism hold plate 36, fitted to a television camera body 32 of the stereoscopic image pickup device 10, adopts a slide guide structure consisting of a long hole 42 and a guide pin 44 and can be skidded in the horizontal direction with respect to the main body 32. Thus, CCDs 52-66, fitted to a color separation prism 38, can be skidded in the horizontal direction with respect to the body 32. The color separation prism 38 is moved slidably with a tuning operation of a screw 86.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional image pickup device in which two television cameras are installed at a predetermined interval in the left-right direction, and more particularly, to the position in the left-right direction of a solid-state image pickup device provided in the television camera. The present invention relates to a position adjusting structure for adjusting the position.

[0002]

2. Description of the Related Art In a three-dimensional imaging apparatus disclosed in Japanese Patent Publication No. 7-58386, two television cameras equipped with a photographing lens are installed at a predetermined interval in the left-right direction. The camera is configured to simultaneously image the same subject.

The two television cameras of such a stereoscopic image pickup apparatus are used by being attached to predetermined positions of a camera platform supported by a tripod. Then, subject images captured by the two television cameras are displayed on a monitor or a screen,
A stereoscopic image can be observed by viewing this subject image through polarized glasses.

[0004]

However, in the conventional stereoscopic imaging device disclosed in Japanese Patent Publication No. 7-58386, the position of the solid-state imaging device provided in the television camera in the left-right direction is determined by the television camera body. There is a disadvantage that the stereoscopic effect cannot be adjusted according to the observation conditions (distance of the subject, angle of view of the monitor or the screen, etc.).

[0005] The present invention has been made in view of such circumstances, and a stereoscopic imaging system capable of adjusting a stereoscopic effect according to observation conditions by enabling the position of a solid-state imaging device in the left-right direction to be adjustable. An object of the present invention is to provide a position adjustment structure of a solid-state imaging device for a device.

[0006]

According to the present invention, in order to achieve the above object, two image pickup means having a color separation prism to which a solid-state image pickup device is attached are installed at predetermined intervals in the left-right direction. In the stereoscopic imaging apparatus, the color separation prism is provided so as to be slidable in the left-right direction with respect to the main body of the imaging unit, and the main body of the imaging unit includes an adjustment unit that adjusts the position of the color separation prism in the left-right direction. It is characterized by being provided.

According to another aspect of the present invention, there is provided a stereoscopic imaging apparatus in which two imaging means each having a solid-state imaging device are installed at predetermined intervals in the left-right direction.
The solid-state imaging device is provided so as to be slidable in the left-right direction with respect to the main body of the imaging unit, and the main body of the imaging unit is provided with an adjustment unit that adjusts a position of the solid-state imaging device in the left-right direction. Features.

[0008] The invention according to claim 1 is directed to an image pickup means in which a solid-state image pickup device is attached to a color separation prism,
In the case of this imaging means, the color separation prism is provided slidably in the left-right direction with respect to the main body of the imaging means, and the position of the color separation prism in the left-right direction is adjusted by the adjustment means. Can be adjusted, so that the stereoscopic effect can be adjusted according to the observation conditions.

According to the second aspect of the present invention, the solid-state imaging device is provided slidably in the left-right direction with respect to the main body of the imaging device, and the position of the solid-state imaging device in the left-right direction can be adjusted by the adjustment device. The stereoscopic effect can be adjusted according to the conditions.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a position adjusting structure of a solid-state image pickup device for a stereoscopic image pickup device according to the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 1, a stereoscopic imaging apparatus 10 according to the present embodiment has two television cameras (imaging means) 12,
14 and these television cameras 12, 14
Are installed on the camera platform 18 supported by the tripod 16 at predetermined intervals in the left-right direction. Image data of a subject simultaneously captured by the two television cameras 12 and 14 are recorded on the two recording / reproducing devices 20 and 22, respectively. Then, the recorded image of the subject is 2
The images are projected onto a screen 28 by the projectors 24 and 26, and a stereoscopic image is obtained by viewing the projected image through the polarizing glasses 30.

FIG. 2 shows a three-dimensional image pickup apparatus 1 in which photographing lenses 13 and 15 are removed from the television cameras 12 and 14 of FIG.
0 is a front view, and FIG. 3 is a rear view. In describing the configurations of the television cameras 12 and 14, since both the television cameras 12 and 14 have the same structure, the structure of the television camera 12 will be described here. The description will be omitted by attaching.

A lens mount 34 is fixed on the front side of the main body 32 of the television camera 12 as shown in FIG. 2, and the photographing lens 13 shown in FIG. On the other hand, on the back side of the main body 32, a color separation prism holding frame 36 is attached as shown in FIG.
The color separation prism 38 shown in FIG.
0 is fixed. Further, a pair of long holes 42, 42 having a longitudinal direction in the left-right direction are formed in central portions on both sides of the holding frame 36 in FIG.
And guide pins 44, 44 projecting from the back of the main body 32.
Are fitted. The holding frame 36 can slide in the left-right direction with respect to the main body 32 by the slide guide structure including the long hole 42 and the guide pin 44. Thereby, R (red) of the color separation prism 38 shown in FIG.
Outgoing ends 46, 48, 5 of light, G (green) light and B (blue) light
CCD (solid-state imaging device) 52, 5
4 and 56 are slidable in the left-right direction with respect to the main body 32 via the color separation prism 38 and the holding frame 36.

The color separation prism 38 has first, second, and third prisms 58, 60, and 62 for separating the subject light from the photographing lens 13 into R, G, and B components as shown in FIG. I have. The first prism 58 and the second prism 60 are provided slightly apart from each other so as to form an air layer on their opposing surfaces. Further, a first dichroic surface is formed on the opposing surface on the first prism 58 side, and R light and G light are transmitted by the first dichroic surface and B light is reflected. The reflected B light is totally reflected by the total reflection surface of the first prism 58 and guided to the emission end 50 of the first prism 58. A CCD 56 for B light is fixed to this emission end via a holder 64.

The second prism 60 and the third prism 62 are joined to each other via a second dichroic surface formed therebetween. Among the R light and the G light transmitted through the first dichroic surface, the R light is reflected by the second dichroic surface, and the reflected R light is totally reflected by the total reflection surface of the second prism 60, and the second prism The light is guided to an emission end 46 of the light emitting device. The R light CCD 52 is fixed to the emission end 46 via a holder 64. on the other hand,
The G light that has passed through the second dichroic surface is
The light is guided to the emission end 48 of the prism 62. This emission end 4
8, a G light CCD 54 is fixed via a holder 64.

As shown in FIG. 2 and FIG.
A bracket 66 is fixed to the upper part of the main body 32 of the first embodiment, and a motor 68 for an optical filter insertion device is fixed to the back of the bracket 66. A spindle 70 of the motor 68 is arranged to penetrate the bracket 66, and a driving gear 72 is attached to a tip end thereof. This gear 7
A turret plate (not shown) is connected to 2 via driven gears 74 and 76. On the turret plate, a plurality of special effect filters such as an ND filter, a CC filter, and an infrared filter are arranged on a circle around the rotation axis of the turret plate. Therefore, the turret plate is
By rotating the filter by a predetermined angle, a desired filter among the plurality of filters is
Are positioned on the optical axis.

In FIG. 2, reference numeral 78 denotes a screw. The screw 78 passes through the main body 32 and is screwed into the holding frame 36 as shown in FIG. The screw 78 allows the holding frame 36
Is fixed at an initial position with respect to the main body 32. Also,
The screw 78 is removed from the front of the main body 32 when adjusting the position of the CCDs 52 to 56 in the left-right direction. And screw 7
8 is screwed into a screw hole 80 formed on the upper surface of the main body 32 so as not to be lost, as shown by a two-dot chain line in FIG.

As shown in FIG. 4, the holding frame 36 is held while being pressed against the back surface of the main body 32 by a pair of clamp plates 82. The clamp plate 82 is formed in an L-shape and is attached to the main body 32 via a screw 84, and the hook portion 83 is connected to the concave engagement portion 37 of the holding frame 36.
Is engaged. According to such a clamp plate 82, when the screw 84 is loosened, the hook 83 is disengaged from the concave engagement portion 37, so that the holding frame 36 can be slid in the left-right direction. Conversely, when the screw 84 is tightened, the hook 83 is engaged with the concave engagement portion 37, so that the sliding movement of the holding frame 36 is restricted.

Meanwhile, a screw 86 corresponding to an adjusting means is screwed into the holding frame 36. The screw 86 is attached to a support plate 90 fixed to the main body 32 with a screw 88 via a retaining ring (E-type washer) 92 shown in FIG. Further, the screw 86 is moved in the moving direction of the holding frame 36 (FIG. 6).
Holding frame 3 which is disposed in the same direction as
6 is screwed. Therefore, according to such an adjusting means, when the screw 86 is turned in the tightening direction, the holding frame 36 is slid leftward in FIG. 6 by the screw feeding action, and conversely, when the screw 86 is turned in the loosening direction. 6, the holding frame 36 is slid rightward in FIG. Thereby, the horizontal position of the holding frame 36,
That is, the left and right positions of the CCDs 52 to 56 are adjusted.

Next, a procedure for adjusting the left and right positions of the CCDs 52 to 56 in the stereoscopic image pickup apparatus 10 having the above-described configuration will be described.

First, as shown in FIGS. 2 and 3, when the holding frame 36 is fixed to the initial position by the screw 78, the screw 78 is first removed from the main body 32 and the holding frame 3 is removed.
Release the initial position fixing regulation of 6. The screw 78 is screwed into the screw hole 80 and attached to the main body 32 to prevent the screw 78 from being lost.

Next, a pair of clamp plates 82 shown in FIG.
, The hook 83 of the clamp plate 82 is removed from the concave engagement portion 37, and the holding of the holding frame 36 is released. Thereby, the holding frame 36 can be slid in the left-right direction.

Next, the screw 86 of the adjusting means is turned in the direction of tightening or loosening, and the holding frame 36 is slid in the left-right direction by the feeding action of the screw. At this time, since the holding frame 36 is guided by the slide guide structure including the long holes 42 and the guide pins 44, the holding frame 36 slides smoothly only in the left-right direction. Therefore, just by turning the screw 86, the position of the holding frame 36 in the left-right direction, that is, C
The positions of the CDs 52 to 56 in the left-right direction can be located at positions according to the observation conditions. The screw 86 is shown in FIG.
Are disposed on the side of the main body 32 as shown in FIG.
Can be easily operated.

When the CCDs 52 to 56 are located at positions corresponding to the observation conditions, the screws 8 of the pair of clamp plates 82
4, the hook 83 of the clamp plate 82 is engaged with the concave engaging portion 37, and the holding frame 36 is clamped and held between the clamp plate 82 and the main body 32, thereby restricting the slide movement of the CCDs 52 to 56. Thereby, the CCDs 52 to 56 are fixed at positions corresponding to the observation conditions. With the above, the CCD 52-5
The adjustment of the position in the left-right direction of 6 is completed.

In this embodiment, the screw 86 is applied as the adjusting means. However, the present invention is not limited to this.
If it is possible to adjust the horizontal position of the holding frame 36,
Any means can be applied.

In this embodiment, the television camera 12 having the color separation prism 38 has been described. However, the television camera 12 does not have the color separation prism, and has a structure in which subject light from the photographing lens 13 is directly imaged on the CCD. It can also be applied to television cameras. In the case of this television camera, the holding frame of the CCD is attached to the main body 32 of the television camera 12.
Slidably in the left-right direction, and adjusting means for adjusting the position in the left-right direction may be provided.

[0027]

As described above, according to the position adjusting structure of the solid-state imaging device for a stereoscopic imaging device according to the present invention, the color separation prism to which the solid-state imaging device is attached is moved in the horizontal direction with respect to the main body of the imaging means. The solid-state imaging device can be adjusted in the left-right direction by slidably provided and the position of the color separation prism in the left-right direction is adjusted by adjusting means, so that the stereoscopic effect can be adjusted according to the observation conditions. .

According to the present invention, the solid-state imaging device is provided slidably in the left-right direction with respect to the main body of the imaging means.
Since the position of the solid-state imaging device in the left-right direction can be adjusted by the adjusting means, the stereoscopic effect can be adjusted according to the observation conditions.

[Brief description of the drawings]

FIG. 1 is an overall structural diagram of a stereoscopic video projection device to which a stereoscopic imaging device according to an embodiment is applied.

FIG. 2 is a front view of the stereoscopic imaging device according to the embodiment;

FIG. 3 is a rear view of the stereoscopic imaging device shown in FIG. 2;

FIG. 4 is a side view of the stereoscopic imaging device viewed from the line 4-4 in FIG. 2;

FIG. 5 is a structural diagram of a color separation prism provided in a television camera of the stereoscopic imaging device.

FIG. 6 is a diagram showing a position adjusting structure of a color separation prism viewed from the line 6-6 in FIG. 4;

[Explanation of symbols]

10 stereoscopic imaging device, 12, 14 television camera, 32
... TV camera body, 36 ... Color separation prism holding frame,
38: color separation prism, 42: long hole, 44: guide pin, 82: clamp plate, 86: screw

Claims (2)

[Claims] 1. A three-dimensional image pickup apparatus in which two image pickup units each having a color separation prism to which a solid-state image pickup device is attached are installed at a predetermined interval in a horizontal direction. A solid-state imaging device for a stereoscopic imaging device, wherein the main body of the imaging means is provided with an adjusting means for adjusting a position of the color separation prism in the left-right direction with respect to the main body. Position adjustment structure. 2. A stereoscopic imaging apparatus in which two imaging units each having a solid-state imaging device are installed at predetermined intervals in the left-right direction, wherein the solid-state imaging device slides in the left-right direction with respect to the main body of the imaging unit. A position adjusting structure for a solid-state image pickup device for a stereoscopic image pickup device, wherein the main body of the image pickup means is provided with adjusting means for adjusting the position of the solid-state image pickup device in the left-right direction.