CN2241352Y

CN2241352Y - Stereo viewfinder

Info

Publication number: CN2241352Y
Application number: CN 93236345
Authority: CN
Inventors: 郭胜康
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-02
Filing date: 1993-03-02
Publication date: 1996-11-27
Anticipated expiration: 2003-03-02

Abstract

The utility model relates to a stereo viewfinder, comprising a casing, a lens, a photo, etc. The photo is a common photo, and stereo scenes on the photo can be viewed through the stereo viewfinder. The utility model has the advantages of simple structure, low cost, and convenient use. The utility model can be used in tourism, educational environment, economy advertisement, and people's daily culture life.

Description

Stereoscopic viewer

The utility model relates to the three-dimensional viewing device in a kind of stereoscopic rendering technical field of photo.

Being applied to the image that photo, film and TV etc. in the people life are showed at present all is the plane.Reproducing stereo-picture on a plane is one of technical field target for a long time.In the stereoscopic rendering technology of photo, people have successfully utilized the high coherence of laser, the amplitude and the phase place (title holographic) of former three-dimensional scene information on dry plate, have been write down simultaneously, the hologram that utilizes laser radiation to make again reproduces the stereo-picture of the original, the making of this laser hologram need be used laser aid with watching all, cost of manufacture relative difficulty high and that make is big, makes this technology be difficult to popularize at present and uses.

The purpose of this utility model just is to provide a kind of photo to make simply, watch conveniently and the three-dimensional viewing device that uses is popularized in low cost being suitable for.

The purpose of this utility model is achieved in that a kind of three-dimensional viewing device, comprise photo, convergent lens and housing, the front of housing is installed two and is assembled lens, the inside face of housing to convergent lens and with plane that the convergent lens mounting plane parallels on symmetry be placed with a comparison film, distance between convergent lens and the photo mounting plane is less than the focal length of lens, and a said comparison film is that the camera of two same models of two usefulness adopts and viewing device physical dimension, the position that the convergent lens focal length is relevant, the photo that angle is taken simultaneously same sight spot.

Below in conjunction with embodiment (accompanying drawing) the utility model is further described.

Fig. 1 is a principle schematic of the present utility model.

Fig. 2 is the spatial structure sketch of the utility model embodiment one.

Fig. 3 is the spatial structure sketch of the utility model embodiment two.

Fig. 4 is the spatial structure sketch of the utility model embodiment three.

Fig. 5 is the spatial structure sketch of the utility model embodiment four.

Contrast Fig. 1, on the front of the housing of three-dimensional viewing device 3 provided by the utility model, installed two and assembled lens 4, two mounting distances of assembling between the lens equate with common people's interpupillary distance, and the inside of housing, in the face of convergent lens and with planar S-S that convergent lens mounting plane R-R parallels on symmetry be placed with a comparison film 1,2, the interplanar distance of R-R and S-S is less than the focal length of lens, O ₁, O ₂Be respectively the central point of two photos, it installs axis of symmetry is O-O '.Two when watching two photos respectively simultaneously by two lens, O ₁, O ₂On axis of symmetry, image in O ', left eye observe photo 1 resulting picture and right eye observe photo 2 resulting pictures cross O ' with the parallel plane T-T of R-R plane on have one to overlap and distinguish M-N.According to optical principle, these two pictures that overlap the district will obtain a stereo perception, two pictures must have video difference, so photo 1,2 must two takes a scenery simultaneously, and the angle of scenery being got during two photograph takings, the position then is different, specifically, make photo 1,2 form a solid image in device of the present utility model, two photos must adopt two cameras that model is identical, according to the lenticular spacing in the above-mentioned three-dimensional viewing device from L, field angle θ, the focal length of angle of convergence α and convergent lens is got the desired position, angle to scenery take simultaneously (for the technician in the related general technology field of the utility model, this position, angle is to know by inference naturally from above-mentioned content, no longer describes in detail here).Like this, when scioptics are watched two photos respectively, produce vision difference on the images of left and right eyes retina, thereby obtain to reproduce the stereoscopic image of the original.According to above-mentioned principle and structural requirement, the utility model provides following several embodiment.

Embodiment one (Fig. 2).Adopt cassette shell 6, two lens 4 are installed in the front of housing 6, the end face of housing has a socket 7 at the place, planimetric position that photo is installed, the inserted sheet 5 that posts photo 1,2 inserts in the housing by socket 7, housing is made with trnaslucent materials, a small lamp bulb 8 can be installed near the middle position of lens in the inside of housing, and small lamp bulb connects (not drawing among the figure) by switch with battery.During use, natural light sees through translucent housing illumination photo (when natural light is not enough, can opens small electric bulb and throw light on), and such two scioptics can be seen three-dimensional scene.

The also available erect image egative film of the photo of present embodiment replaces, and small lamp bulb need not be installed, and directly utilizes the natural light that sees through back side of shell to observe, and effect is better.

Embodiment two (Fig. 3).Other structure is with embodiment one, different is has adopted a roll film 9 to replace inserted sheet among the embodiment one, the two ends of roll film 9 are wrapped on two transverse axis 11 that lay respectively at housing front upper-lower position, handwheel 10 (placing hull outside) is installed in diaxon 11 terminations, one group of photo or printing or be bonded on the roll film, roll film is walked around two transverse axis 12 of housing back upper-lower position, rotates handwheel like this, can see one group of disposable three-dimensional scene.

Embodiment three (Fig. 4).Housing adopts disk-shaped structure, and dish type housing 11 positive symmetries are installed two and assembled lens 4, and the disk 12 that can rotate around its central shaft gap is equipped with near back cover in the inside of housing, and disk 12 usefulness transparent materials are made.The position of lens is furnished with one group of photo 13 relatively.When arranging photo, the one comparison film must be the relative position that is distributed in the both sides, center of disk.Housing is that trnaslucent materials is made, and photo 13 can adopt on transparent material the printing photo or directly adopt the erect image egative film.Like this, during use, can observe photo by means of the natural light that sees through back of the body end.Because of housing is translucent, also has same effect with common photo.In the present embodiment, the distance between lens and the photo is very little, and the structure of whole like this device can be made very small and exquisitely (be thin discoid, can wear the front), and this is the design feature of this enforcement.

Embodiment four (Fig. 5).The device that present embodiment provided is a rotating disc type, use simultaneously for many people, this device profile is polygon or disc 11, inside is the traffic cycle 12 of a regular polygon, be furnished with one group of photo 13 on the regular polygon lateral surface of traffic cycle, each comparison film is installed on the side, and the outside of this device is along being equipped with a plurality of observations position over against photo on every side, and each is observed on the position a pair of lens 14.Many like this people are positioned on the different observation positions, rotate around the gap of axes O O ' with traffic cycle, can see different three-dimensional scenes simultaneously.

The utility model compared with prior art has the following advantages:

1. employed photo adopts general camera to take in the device, thereby makes simply, does not have Need laser aid.

2. scioptics can be seen three-dimensional scene easily, and device itself is simple in structure, and With low cost, thereby be suitable for popularizing use. Be used for education sector, tourist industry, available this dress Put and watch the whole nation and universal geography style and features, tourist attraction, townscape; Be used for economic industry, Can be large, medium-sized enterprises, market and large product and do advertisement; Be used for people's culture life, can For children stay the exploded view of childhood, stay the three-dimensional wedding gauze kerchief image in youth for the newly-married couple.

Claims

1. this three-dimensional viewing device, comprise photo, convergent lens and housing, the front of housing is installed two and is assembled lens, the inside face of housing is to convergent lens, and with plane that the convergent lens mounting plane parallels on symmetry be placed with a comparison film, distance between convergent lens and the photo mounting plane is less than the focal length of lens, and a said comparison film is that two same model cameras of two usefulness adopt and described three-dimensional viewing device physical dimension, the position that the convergent lens focal length is relevant, the photo that angle is taken simultaneously same sight spot.

2. three-dimensional viewing device according to claim 1, it is characterized in that: described housing is a box structure, the end face of housing has a socket at the place, planimetric position that photo is installed, and housing is a trnaslucent materials, near the middle position of lens one small lamp bulb is installed in the inside of housing.

3. three-dimensional viewing device according to claim 1, it is characterized in that: described housing is a box structure, the front and back of housing, upper-lower position are equipped with four respectively, the front is twined up and down a roll film that is furnished with one group of photo on the diaxon, the termination of diaxon places hull outside and handwheel is installed, roll film is walked around the upper and lower diaxon in back, makes photo forward preposition to.

4. three-dimensional viewing device according to claim 1, it is characterized in that: housing adopts disk-shaped structure, the dish type housing is translucent, positive symmetry is installed two and is assembled lens, back of the body end has two transparent windows, near back cover the disk that can rotate around its central shaft gap is housed in the housing, is furnished with one group of photo or erect image egative film on the position of the relative lens of disk border.

5. three-dimensional viewing device according to claim 1, it is characterized in that: housing is a rotary-disk type structure, inside is on the side of traffic cycle of regular polygon and is furnished with one group of photo, and the outside of dish type housing is equipped with a plurality of observations position along circumference, and each is observed on the position a pair of lens.