JPH01121842A - Stereoscopic video projector - Google Patents

Abstract

PURPOSE:To ease handling and to miniaturize the title projector by repeating 1-frame feeding and 3-frame feeding of a film to be mounted, developing the continuous film photographed by a stereoscopic camera and constituting the projector in such a manner that this film can be mounted as it is to the projector. CONSTITUTION:The light beams from light sources 13a, 13b are projected through optical parts 12a, 12b. Film collars 17a, 17b wound with tape-like films 16 can be disposed on the right and left in a main body 11. The spacing between the optical lens parts 12a, 12b is set at the spacing for one frame of the film and one frame corresponds to the optical lens parts 12a, 12b, respectively. The contents of the right and left pictures [suffix (a) is the left and (b) the right] are photographed by the repetition of feed order of 1 frame, 1 frame, 1 frames, 1 frame, 1 frame and 3 frames as shown in the figure. The camera is, therefore, the similar device and the photographed film is developed and printed as it is and is used. The projector is thereby miniaturized and the handling thereof is eased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a three-dimensional image projection device that projects three-dimensional images.

(Problems to be Solved by the Prior Art and the Invention) To display a three-dimensional image using a projector, two projectors project left and right projection films on one screen. In this case, the - side is projected through a vertical polarization filter, and the other is projected through a horizontal polarization filter. Viewers can view the image three-dimensionally by viewing the vertical and horizontal polarizing filters with their left and right eyes.

Conventionally, devices for projecting stereoscopic images have been complicated and large, and have not been widely used. In addition, handling is complicated, and skill is required to attach the film to the projector.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a stereoscopic image projection device that is easy to handle and can be made compact.

[Structure of the Invention] (Means for Solving Problems) The present invention has a first and second optical system section in a main body, and the first and second optical system sections are provided inside the main body. The first optical system is connected to the second optical system section. Make the second frame correspond and this first frame. A series of films arranged with one frame between two frames can be mounted, and the means for driving the film can be one-frame feed and three-frame feed.
The device is equipped with means for alternately repeating frame-by-frame forwarding.

(Function) With the above means, the film to be loaded can be developed by repeating 1-frame advance and 3-frame advance, and the continuous film taken with the stereoscopic camera can be loaded into the main body of the device as it is, making it easy to handle. This makes it easy to enjoy stereoscopic images.

(Example) Embodiments of the invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which the entire surface of the main body 11 has a first . Second optical lens parts 12a and 12b protrude in parallel, and these optical lens parts 12a and 12b are provided with adjustment screws 15a.

By rotating 15b, its left and right directions can be adjusted in the directions of the arrows.

This allows the two lens systems to be aligned with respect to the projection screen.

Inside the main body 11, each lens portion 12a is provided.

Light sources 13a and 13b are provided in a large layer in 12b, and the light from the light sources 13a and 13b is transmitted to each optical section 12a.

12b. Furthermore, film collars 17a and 17b around which the tape-shaped film 16 is wound can be arranged on the left and right sides inside the main body 11. Film collars 17 a and 17 b are rotatably arranged on rotating shafts 14 a and 14 b, and the film 16 between these collars is
Optical lens section 12a.

12b. and film 1
There is a capstan 18a on the running path of No. 6.

A film driving section is constituted by 18b1 pinch rollers 19a and 19b, and uses a motor as a driving source.

Here, the interval between the optical lens parts 12a and 12b is set to one frame of film, and the distance between the optical lens parts 12a and 12b is
One frame corresponds to each.

Further, the screw 20 shown in FIG. 2(b) is for adjusting the elevation angle,
When this is rotated, the support base 21 moves up and down, and the elevation angle of the entire main body 11 can be adjusted.

, FIG. 2 shows an example of photographing a film used with this apparatus. As shown in Fig. 2, the left and right image contents G11
The images are shot repeatedly in the following order: frame, 1 frame, 3 frames, 1 frame, 1 frame, 3 frames.

The suffix a for each picture of the film means left and b means right. Therefore, the photographing device is also a device similar to the device shown in FIG. 1, and the film taken by this device is developed and printed as it is, and used in the stereoscopic image projecting device.

FIG. 3 is an example of a flowchart of a microcomputer that operates the apparatus shown in FIG. 1 and controls a film drive motor. When stereoscopic video projection is started (step 1), it is determined whether or not there is a frame advance command signal (step S2).

This is, for example, a signal played from an illustrative audio tape and is captured via an interface. If there is no frame advance command signal, the audio reproduction continues as it is, and if there is a frame advance command signal, one frame is transmitted (step S3). As a result, for example, as the first movie, la, lb in Figure 2 can be used.
If this is the case, then images 2a and 2b will now be displayed. When a frame advance command is detected in this projection state (step S4), the next step is to advance three frames (step S5). Frame feed correction command (step S
6), the process returns to step S2 and the above projection operation is repeated. Correction commands are supplied by the user from the keyboard, and are operated when there is a discrepancy between the audio and the projected image or a difference between the left and right images, and when there is a correction command, the screen is advanced by 3 frames again. .

In the above embodiment, when installing the film, color 1
The collar 17a is configured to be pulled out from the collar 7a and wrapped around the collar 17b.

17b inside the cassette, and the cassette itself is inserted into the main body 1.
1 to make handling easier.

The above explanation was given as a device that projects stereoscopic images, but if the control loop switch S7 is turned on, it can be
It is also possible to switch to perform D projection. In this case, the projection film is a 2D image.

In the above explanation, the frame advance command signal is introduced from the audio tape, but the invention is not limited to this.
This may be detected as a command signal for advancing one frame or three frames.

The purpose can be achieved by detecting this level by, for example, a photo-emitting light-receiving element or by using it for short-circuiting a switch. The mark M may be provided at a plurality of locations, and when this is detected, the next frame advance is programmed to be one frame. Further, if the control system is a system that detects a mark once and then advances frame by frame in a predetermined order, it is sufficient to attach one mark.

[Effects of the invention As explained above, this invention can be made smaller;
It is possible to provide a stereoscopic video projection device that is easy to handle.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing an example of a film used in the apparatus of the present invention, and FIG.
The figure is a flowchart shown to explain an example of the operation of the apparatus of the present invention. 11... Main body, 12a, 12b... Optical lens part,
13a, 13b--light source, 14a, 14b--axis,
15a, 15b...adjustment screw, 16...film,
17a, 17b...Film color. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] A main body has first and second optical system parts, and inside the main body, first and second frames are arranged to correspond to the first and second optical system parts, and the first and second frames are arranged to correspond to the first and second optical system parts. A series of films arranged so as to have one frame between them can be mounted, and the film is driven by means for alternately repeating one-frame feeding and three-frame feeding. Three-dimensional image projection device.