JPS59140419A - Stereoscopic viewer - Google Patents

Abstract

PURPOSE:To reproduce a lot of stereoscopic pictures by installing a band-like slide pepared by arranging a pair of left and right positive films in one lengthwise row into a handle, and constituting so that one frame each is traversed by a frame feed. CONSTITUTION:A band-like slide 6 is prepared by arranging in one lengthwise row plural frames of a pair of left and right positive films 6a required for a stereoscopic reproduction. An engaging stepped part 6b having a saw tooth shape is formed for a frame feed use on the right side part of the band-like slide 6, and also a detaining recessed part 6d recessed like a pawl mark in order to detain the band-like slide 6 brought to a frame feed is formed on a partitioning part 6c placed between the left and right positive films 6a. The band-like slide 6 is inserted into a handly 5 from an inserting port 5b formed on the lower end part of the handle 5, and a different stereoscopic still picture can be reproduced successively by depressing a frame feed lever 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stereo viewer JL-Ware that allows any number of strip-shaped slides for stereoscopic image reproduction to be exchanged and reproduced.

Generally, the principle of a stereo viewer has been known for a long time, and various toys using this principle have been devised for playing still images or moving images. For example, the positive film used to reproduce still images consists of a pair of original images for the left eye and one for the right eye placed side by side, and these original images are guided to the left and right eyepieces through the optical system. As a result, the stereoscopic still image is reproduced.

However, conventional stereo viewers for playing 3D still images are of an endless playback type, in which a rotating slide with several sheets of positive film pasted at equal intervals on a disk is built into the viewer body in a non-replaceable manner. The structure was as follows. For this reason, even if the rotating slide can be rotated one frame at a time using the frame advance lever, the same rotating slide will be played over and over again. The number of positive films used for the rotating slide was limited, and since the rotating slide could not be replaced, it was difficult to continue to attract users. Furthermore, with conventional stereo viewers, it was not possible to operate the frame advance lever with the hand holding the handle, so it had to be operated with both hands, which greatly reduced the freedom of hands when using it. It had the disadvantage of being constrained.

This invention was made in view of the above circumstances, and its purpose is to use a band-shaped slide made by arranging a pair of left and right positive films vertically in a row for three-dimensional image reproduction, and to install this in the viewer body. It is an object of the present invention to provide a stereo viewer which is mounted in a handle and is capable of reproducing one frame at a time using a frame-advancing mechanism, and also enables reproduction of a large number of three-dimensional images by converting a band-shaped slide.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. 1 and 2 are a perspective view and an exploded perspective view, respectively, showing an embodiment of a stereo viewer according to the present invention.

In the figure - the stereo viewer 1 has a viewer main body 4 for guiding external light introduced from the lighting section 2 through a predetermined optical path (light path) to a pair of left and right eyepieces 31.3r, so that the stereo viewer 1 has a T-shape as a whole. The handle 5 is integrally formed, and the handle 5
The belt-shaped slide 6 mounted inside the device is configured to be fed frame by frame by a frame feeding mechanism 7. The strip slide 7 is
It was created for this stereo viewer 1,
In the case of this embodiment, a pair of left and right B:j films 6a necessary for stereoscopic reproduction are used, which are prepared by arranging 10 frames in a vertical line. On the right side of the strip slide 6, 12 serrated engagement steps 71 are formed for frame feeding, and a partition 6c sandwiched between the left and right positive films 6a is provided with a partition 6c for frame feeding. A locking recess 6d recessed in the shape of a claw is formed in order to lock the band-shaped slide 6. Further, a notch 6e is formed at the left end of the back surface of the band-shaped slide 6, unlike the right end thereof, and as will be described later, this notch 7e serves to prevent incorrect insertion when the band-shaped slide 6 is mounted.

By the way, as shown in FIG. 2, the viewer main body 4 is constructed so that it can be divided into two parts: the side to which the eyepieces 31 and 3r are fixed, and the side to which the lighting section 2 is fixed.
The reflector unit 9 for changing r is an eyepiece lens 31
, 3r fixed side, and the frame feed mechanism 7 is installed in the lighting section 2.
Built into the fixed side. The reflecting mirror unit 9 includes two planar reflecting mirrors 9a and 9b that are inclined at 45 degrees with respect to the optical path 81.8r for each of the left and right optical paths 81 and 8r, and are arranged facing each other with a predetermined distance from each other. A flat reflecting mirror 9a.

It serves to shift the optical paths of incident light and reflected light laterally by an interval of 9b. Therefore, even if the width of the lighting section 2 as a whole is small, the outside light passing through the reflecting mirror unit 9 allows the eyepiece 31.3 to be adjusted to the distance between the human eyes.
It is lightened by letting outside light enter straight into r.

Reference numeral 9c denotes a pin implanted in the center of the light input jIl11 of the reflecting mirror unit) 9, which is engaged with the locking recess 6d of the attached band-shaped slide 6 to prevent the band-shaped slide 6 from falling off.

The frame feed mechanism 7 has a structure in which a return spring 11 is assembled to a reciprocating type feed wheel 10 in which a lever 10b for frame feed is integrally provided on a quadrant-shaped partially toothed gear 10a. 1()b extends to the outside of the viewer main body 4.

The teeth of the partially toothed gear 10a are capable of moving forward and backward in the travel path 5a of the strip slide 6 defined by the handle 5, and when the lever 10b is pushed down with a finger, the teeth of the partially toothed gear 1()a move forward and backward. Enter Road 5a.

Here, the band-shaped slide 6 is inserted into the handle 5 through an insertion opening 5b formed at the lower end of the handle 51),
The strip slide 6 inserted into the handle S is pressed by the plate spring 12 so as to be in close contact with the running path 5a. In the case of this embodiment, three strip slides 6 can be stacked and mounted inside the handle 5, and even if three strip slides 6 are stacked, only the one facing the running path 5a can be attached to the frame feed mechanism. 7
You can advance frame by frame. In addition, frame advance 1)
The strip-shaped slide 6 that has been removed is sent out from an outlet 5C formed at the upper end of the viewer main body 4, and it goes without saying that the insertion opening 5b and the outlet 5c are located at both ends of the travel path 5a. becomes. Furthermore, a projection 13 is formed at the left end of the insertion opening 5b in FIG. 2 to allow passage of the notch 6e of the strip slide 6. The protrusion 13 prevents the strip slide 6 from entering, thereby preventing incorrect insertion.

Next, how to use the stereo viewer 1 having the above configuration will be explained.

The user first inserts up to three slides 6 to be viewed into the handle 5 through the insertion opening 5b with the notches 6e facing the left end. The band-shaped slides 6 are surely inserted one by one until their lower ends are hidden in the insertion opening 5b. Next-
2. For example, as shown in Figure vJ1, hold the handle 5 with your left hand, press both eyes against the eyepieces 31 and 3r, hold the lighting section 2 up to sunlight or an indoor light, and use the /
< Press down 1°b using your index finger, etc. As a result, the feed pinion 10 rotates, and the teeth of the partially toothed gear 10a engage with the engagement step 6b on the right side of the strip slide 6, thereby feeding the strip slide 6 upward one frame.

When you release your finger from the frame feed lever 10b, the feed wheel 10
is returned to its previous position by the return spring 111. Note that I) When the base 10 returns, the teeth of the partially toothed gear 10a move out of the running path 5a without touching the engagement step 6b of the band-shaped slide 6, so that the band-shaped slide 6, which has been advanced by a frame, No problem will occur if it is pushed back by the partially toothed gear 10a.

Furthermore, since the bin 9C installed on the light incident side surface of the reflector unit 9 is locked to the locking recess 6d of the band-shaped slide 6 after frame feeding, gravity causes the band-shaped input line Y6 to be locked. There is no risk of it falling downward.

In this way, when the strip slide 6 is advanced by one frame,
The left and right positive films 6a are passed through the eyepieces 31 and 3r.
You can see the image of the light that has passed through the screen, and you can enjoy the reproduced 3D still image. Therefore, by pressing down the frame advance lever 10b again, different stereoscopic still images can be sequentially reproduced. When all 10 frames of stereoscopic still images have been reproduced, no matter how many times the lever 101) for frame advance 1) is pushed down, only a pitch black screen is seen, and the state of blank advance is repeated. Therefore, in that case, it is sufficient to pinch and pull out the band-shaped slide)'6, which is mostly extending from the discharge port 5c. After pulling it out,
Another strip-shaped slide 6 that has already been inserted is pushed by the leaf spring 12 and automatically attached to the travel path 5a.

In this way, the stereo viewer 1 configured as described above can be operated with one hand, and the strip slide 6 can be replaced with as many images as you want to view, so you will not get tired of it quickly. Moreover, since up to three strip slides 6 can be attached at a time, even in the case of the embodiment, up to 30 stereoscopic still images can be continuously reproduced.

When children with small palms operate the stereo viewer 1, they may hold the handle 5 with their left hand and operate the frame advance lever 10b with their right hand.

Further, in the above embodiment, the engagement step 6b formed on the right end side of the band-shaped slide 6 and having a sawtooth shape prevents the user's finger or the like from being caught in the gap of the insertion opening 5b.
One method is to line b with a thin plate and finish the right end surface flat.

As explained above, according to the stereo viewer of the present invention, since the strip-shaped slide is provided in the viewer body and traverses the open optical path between the eyepiece and the lighting section one frame at a time, In principle, it is possible to reproduce an infinite number of 3D images by replacing the plate-shaped slide, and since the strip-shaped slide uses the inside of the handle provided on the viewer body as a passage, it is possible to make the entire viewer structure more compact. In addition, by providing an operating lever etc. on the side of the handle for moving the strip slide frame by frame, i) it can be operated with the fingers of the hand holding the handle,
This provides excellent effects such as being able to operate with just one hand.

Furthermore, the stereo viewer according to the present invention has a space in the handle in which a plurality of strip-shaped slides can be stacked and stored in a state where they are energized toward the traveling road, and only the three slides located in the path of the strip-shaped slides are fed frame by frame by the frame-by-frame feeding mechanism. By configuring it so that the slide can be replaced, it is possible to reduce the number of times the band-shaped slide is replaced, and it is possible to continuously reproduce a large number of stereoscopic still images by wearing the slide once.

[Brief explanation of drawings]

FIG. 1.2 is a perspective view and an exploded perspective view, respectively, showing an embodiment of the stereo viewer according to the present invention. 1... Stereo viewer 2... Lighting section 31.3r
...Eyepiece lens 4...Viewer body 5...Handle 5a...Traveling path 6...Striped slide 6a...
Positive film 7...Frame advance mechanism 81.8r...
Optical path 9...Reflector unit 12...Plate spring, -'3 (1shi1 Procedural amendment (voluntary) 1. Indication of incident 1982 Patent Application No. 15070 2 Name of invention Stereo Viewer 3 , Relationship with the person making the amendment Patent applicant: 2-5-4 Komagata, Taito-ku, Tokyo Pandai Co., Ltd. 4, Agent: 111 (Telephone) 862-497'? (Main) 3-chome, Kuramae, Taito-ku, Tokyo Full text of Specification No. 1 No. 4 6. Contents of amendments are as attached.

Claims (1)

[Scope of Claims] 1. A viewer main body having a pair of left and right eyepiece lenses, a lighting section, and an optical path connecting these; and a viewer main body provided with a pair of left and right positive films for stereoscopic image reproduction in a plurality of frames arranged in a vertical line. A stereo viewer comprising a handle that forms a travel path for strip-shaped slides produced side by side, and a frame feeding mechanism provided in the viewer main body to feed the strip-shaped slides J frames at a time across the optical path. 2. The handle has a space in which a plurality of strip-shaped slides can be stacked and stored, and a spring that urges the strip-shaped slide stored in the space toward the traveling road side. The stereo viewer described in item 1.