CN2370435Y

CN2370435Y - Stereo vision detecting board without wearing special glasses

Info

Publication number: CN2370435Y
Application number: CN99205782U
Authority: CN
Inventors: 金贵昌; 周桂荣
Original assignee: Institute of Biophysics of CAS
Current assignee: Institute of Biophysics of CAS
Priority date: 1999-03-03
Filing date: 1999-03-03
Publication date: 2000-03-22
Anticipated expiration: 2009-03-03

Abstract

The utility model relates to a detecting board which is used for detecting the stereoscopic vision function of a person. The detecting board is a columnar board made of transparent medium, wherein, the surface of the columnar board of the utility model is covered on a synthetic stereogram comprising different parallactic graphics, and the synthetic stereogram is output on a medium; the column face of the columnar board faces outside, and the columnar board and the synthetic stereogram are bonded into a whole, wherein, the pitch length on the columnar board is 0.3MM-0.6MM, and the synthetic stereogram is a random point stereogram comprising different parallactic graphical information and is produced by using the computer technology to be output and printed on the medium. The utility model has the advantages that the utility model can easily, conveniently and accurately detect and evaluate the stereoscopic vision function of the person without the need of wearing any special glasses. The detecting board has simple structure and high cost performance.

Description

A kind of stereoscopic vision check-out console that need not wear special eyeglasses

The utility model relates to the utensil of the visual performance that detects the people, particularly relates to the check-out console that detects the human stereo vision function.

Stereoscopic vision is one of human important visual performance, and is significant to mankind itself's aspects such as existence, safety and task performance.In today of scientific and technological develop rapidly, micromanipulation is more meticulous, the power apparatus runs at full speed, and more requires relevant practitioner that good stereoscopic vision function is arranged.Stereoscopic vision has detected one of medicine body project of selecting the practitioner as industries such as aviation, remote sensing in some developed countries of west at present.In clinical medicine, (as amblyopia) also will check the stereoscopic vision function in the diagnosis and treatment to some ophthalmology disease.The utensil that detects stereopsis at present both at home and abroad can be divided into two big classes basically: a class is to belong to three-dimensional detection mode, as Dorr graceful (Dolman) depthometer as far back as the invention of 19th century, once be used widely, but its defective is other degree of depth clues that exist except that binocular parallax, so use less at present.Another kind of is the detection mode that belongs to two dimension, as external a kind of T.N.O. that cries, the stereopsis test instrument of Titmus, or domestic " " stereopsis test figure ", the figure with parallax all is a 2-d plane graph, a lot of figures adopt Random-dot Stereograms RDS; its advantage is no simple eye shape clue; but the detected person will wear special glasses, as polarised light glasses or red green complementary goggles with color filter, will not cooperate because of being reluctant to wear glasses when particularly small children being detected.Also detect stereopsis with synptophore in clinical, it also belongs to the detection mode of two dimension, and synptophore is by the lens barrel of two band scales, and there is lighting device the lens barrel both sides, picture inserts device, and catoptron connects the eye position and constitutes, price is more expensive, and it is also more time-consuming to operate, so also often do not use in clinical.

The purpose of this utility model:

The purpose of this utility model is to overcome the utensil structure complexity or the more expensive problem of expense of present detection stereoscopic vision; And the detected person need wear special glasses, uses inconvenience, is reluctant the shortcoming cooperated when particularly small children being detected.For rapidly, convenient, accurately detect the stereoscopic vision function, have cost performance preferably simultaneously, thereby a kind of novel stereoscopic vision check-out console that need not wear special glasses be provided.

The purpose of this utility model is achieved in that

The column plates that the stereoscopic vision check-out console that need not wear special glasses that the utility model provides is made by a transparent medium, the plane of its column plates covers width of cloth output and is containing on the medium on the compound stereoscopic figure of different parallax figures, the cylinder of its column plates is outside, and both compositions that are bonded to one.Wherein the pitch on the column plates is 0.3mm--0.6mm, and transparent medium comprises organic glass, plastics etc.; Wherein the compound stereoscopic graph structure is that to utilize computer technology to produce a width of cloth Random-dot Stereograms RDS right, and this Random-dot Stereograms RDS is to two sheet of planar figure constitute about different parallax graphical informations by comprising; Utilize again the Graphic Information in Computer treatment technology about two sheet of planar figure be divided into the striped of vertical direction respectively, it is 1,2,3,4 that striped numbers in order ..., the width of striped is 1/2 of a column plates pitch width.Then about uncouple respectively number and go odd number to handle of two sheet of planar figure, two sheet of planar figure about handling well are synthesized a width of cloth stereographic map, output print is on the medium (as: on the cardboard, on plastics or other media), be width of cloth output contains different parallax figures on medium compound stereoscopic figure.The profile of check-out console can be made Any shape, as: geometric figure, animals shaped, car etc.According to the binocular parallax principle, when people observe this check-out console, by the light refraction of column plates via about picture information overall treatment in brain of two receptions will produce image with three-dimensional perception, the figure of the different parallaxes that can differentiate according to human eye can detect people's stereopsis acutance.Check-out console comprises four kinds of figures, wherein by a string diagram and three at random point diagram constitute, string diagram has simple eye shape clue, has exemplary role during detection, makes that small children is more interesting watches.Point diagram does not have any simple eye shape clue at random, can detect the stereoscopic vision function more objectively.

Advantage of the present utility model:

1. need not wear any special eyeglasses and can detect and estimate the human stereo vision function quick and easy, exactly.For the normal person of stereoscopic vision, can recognize promptly that four figures all appear in one's mind on background plane among Fig. 2 B, and the height difference of emersion, for the unusual person of stereoscopic vision, as stereoscopic weak and stereoscopic blind person, they or the accurate solid figure height on the resolved detection plate perhaps do not see having solid figure to exist at all, only see the pentagram of a planar graph.

2. stereoscopic vision check-out console of the present utility model is simple in structure, and ratio of performance to price height is suitable for applying.

3. using method of the present utility model is easy to grasp, and it is all convenient to detect and carry.

Below in conjunction with drawings and Examples the utility model is described in further detail

Fig. 1. be depicted as the displaying principle figure of column plates

Fig. 2. be depicted as the structural representation of this stereoscopic vision check-out console;

Fig. 3. be outside drawing of the present utility model

Drawing is described as follows:

Wherein Fig. 2 A is the background quality of check-out console, is to be made of random point;

Four stereographic maps of Fig. 2 B for comprising on this check-out console, wherein pentagram is one to have the stereographic map of simple eye shape clue, its excess-three figure (+word, car, swallow) is the Random-dot Stereograms RDS of no simple eye shape clue;

1---column plates 2---utilized the width of cloth Random-dot Stereograms RDS of computer technology output on paper

3---right eye 4---left eye

Embodiment 1

Need not wear the stereoscopic vision check-out console of special eyeglasses by one of making shown in Figure 2

Transparent column plates is made with a rectangle organic glass, and it is of a size of 9.0cm * 13.5cm, and pitch is 0.3mm.One width of cloth output the compound stereoscopic figure that contains different parallax figures on the medium be machine as calculated handle the solid figure of synthesizing and parallax value respectively as the figure output print of Fig. 2 A on a blank sheet of paper, figure comprises four stereographic maps, pentagram is the solid figure of the simple eye shape clue of a tool, and parallax value is 1000 seconds; Its excess-three figure all is a Random-dot Stereograms RDS shape, wherein+word, parallax is 200 seconds; The car parallax is 400 seconds; Little swallow parallax is 600 seconds.One rectangular poly (methyl methacrylate) plate is made column plates, and flatting down of its column plates covers on the paper of the compound stereoscopic figure that contains different parallax figures, and both are bonded to one with it.People with normal stereoscopic vision when distance detecting plate 40cm place is observed, sees that four figures float on background, shown in Fig. 2 B; The descending order of the height that they float is: pentagram, little swallow, car ,+word.

Embodiment 2

Need not wear the stereoscopic vision check-out console of special eyeglasses by one of the animals shaped making among Fig. 3, transparent column plates is made of plastic, and its pitch is 0.5mm.Solid figure such as Fig. 2 A that the output of one width of cloth is synthesized on plastics, both are bonded to one with it.

Claims

1. the stereoscopic vision check-out console that need not wear special eyeglasses, comprise the Random-dot Stereograms RDS that a width of cloth utilizes computer technology to manufacture, it is characterized in that: comprise that also a transparent medium makes the column plates that pitch is 0.3mm--0.6mm, the plane of its column plates covers a width of cloth and utilizes computing machine output containing on the medium on the random point compound stereoscopic figure of different parallax figures, the cylinder of its column plates is outside, and both compositions that are bonded to one.