CN2042971U - Tv. glasses capable for produce stereoscopic effect - Google Patents

Abstract

The utility model relates to an eyeglasses which is made of eyeglass, wherein, the profile of which is cylinder lens structure with particular curves. When people watch any television program with the eyeglasses, both of the coloured and the black and white television programs can be displayed with analogous three-dimensional and stereoscopic effects without any change of the TV. Because the images are not changed, the utility model likewise can be used for watching analogous three-dimensional and stereoscopic effects of projection TV, movies, stripfilms, etc; in addition, viewers can watch original images on the same screen if the viewers does not wear the utility model.

Description

TV. glasses capable for produce stereoscopic effect

The utility model relates to a kind of eyeglass device that produces stereoeffect, or rather, relate to and a kind of general television set not being made any changes, and make the beholder when black and white of watching any standard or colour program, can produce the eyeglass of stereoeffect and the glasses of making by this eyeglass.

At present, TV tech does not enter the stereotelevision stage as yet.TV station did not both provide the TV programme with real steric information, and industry member does not provide real spatical television set yet.But concerning most of televiewers, certain stereoeffect can be seen on the television screen of oneself and don't must change the more money of expense and remove to change existing televisor that this has certain attractive force.Now there have been some technical schemes can utilize common colour television set to produce " class 3 D stereo effect ".It is that in addition certain is transformed to ordinary color tv set that a direction is wherein arranged, and the beholder wears special goggles with color filter again, thereby sees the coloured image with stereoeffect on screen.For example, the ABDY-3D system (Deutsches Reichs-Patent DE217849) of Germany ABDY company design; The color solid circuit arrangement (Chinese patent application CN85105514) of BeiJing, China Tyco Electronics Corp design.Because all colour television sets all utilize the principle of three primary colours to carry out work, three tunnel carrier chrominance signal R, G, B superpose on crt screen simultaneously and form coloured image.Above-mentioned class 3 D stereo TV solution of the prior art is managed time-delay wherein a tunnel exactly, such as red R, about 0.6～0.7 microsecond.Like this, on the television screen with two width of cloth images that do not coincide on the time of occurrence: a width of cloth is cyan (red complementary color); Another width of cloth is red.The picture that the beholder sees on screen is the blurred picture that has serious red fringing.If but at this moment put on the special green grass or young crops of a pair, the goggles with color filter of red dichromatism, make eyes only see cyan image, the another eyes are only seen red image, although their display position horizontal directions on screen are slightly different, under the combined action of human brain, the image that the beholder sees will combine together and have stereoeffect.Utilize principle of uniformity, the green of also can delaying time, the beholder wears purple green glasses; Perhaps delaying time yellow signal and wearing blue yellow glasses obtains stereoeffect, this three kinds of methods essential identical.But this class scheme of the prior art has the some shortcomings part to wait to overcome.For example, the first, must be to radiovisor certain transformation in addition.Concerning the televisor owner, increasing by a cover time-delay mechanism and buying goggles with color filter to increase a no small spending; The second, it only is applicable to colour television set, and is invalid for the black and white television set of plurality; The 3rd, the beholder must wear double-colored glasses, causes the image seen some distortion to be arranged having in the brightness on partial loss and the colour; The 4th, may be because quite a few beholder's incompatibility be worn double-colored glasses, the people that the same family member does not wear double-colored glasses can't watch TV programme when others watches relief effect; The 5th, because delayed time system is nonadjustable, so different in stereoeffect when the fluorescent screen different distance is watched; The 6th, owing to the colour filter scope of dual-color filter can not be mated fully with the luminous performance of televisor fluorescent screen, so the stereo-picture of seeing can produce the phenomenon of ghost image.

Another direction of the prior art is not change image itself, but between image and beholder's eyes, increase a series of optical element, for example, Fersnel lens group, set of cylindrical lenses, Polarizer or the like, the beholder can wear or not wear optical glasses correspondingly, causing slightly difference of the actual image of seeing of right and left eyes, thereby under the combined action of human brain, produce stereoeffect.But, these methods or complexity is difficult to realize in average family, or the glasses that require to wear not only have the special optical performance and also the colour filter performance will be arranged simultaneously, and this also can produce the defective of having pointed out.Though come so the report of having seen but fails to promote.This class is utilized some stereoeffect of optical instrument generation, also belongs to a class of class relief effect technology.Example can be consulted BrP GB-014689 " stero of TV and video display "; Spain patent ES-53077 " television receiver stereo display method "; Deutsches Reichs-Patent DE-413211 " stereo display of TV signal "; Deutsches Reichs-Patent DE-246047 " single screen produces the method for stereo-picture "; Deutsches Reichs-Patent DE-428038 " televisor produces the optical means of class relief effect "; U.S. Patent application US-426503 " colour TV picture increase function "; U.S. Patent application US-681932 " utilizes by the color three dimension image observation system of the slit lens of multiple polarisation material " or the like.

The invention person studies the principle of work of above-mentioned two kind 3 D stereo TV tech, has obtained following view: this quality factor of (1) human eye three-dimensional imaging be about two viewed image slightly different (consulting accompanying drawing 1).With regard to object was positive, two findings were identical substantially, and then there is obvious difference two sides; Left eye can be seen the narrow vivid L in object left side; Right eye then can be seen the narrow vivid R in object right side.This image of having difference slightly comprehensively becomes stereo-picture in human brain.(2) the class three-dimensional imaging does not obviously possess right and left eyes finding image and contains real steric information, but owing to are not together in two being seen images or position, or image difference slightly, this image-forming principle is likely that two width of cloth positions or shape are inconsistent and compares with the experience of life of brain accumulation in brain and produced three-dimensional association.

Starting point of the present utility model is to provide a kind of technical scheme, this scheme is not done any change and is only used simple optical instrument the screen of TV set image, two observed tv screen images have the variation that is similar to the true stereo parallax about causing consciously, make the right eye finding in screen right side constriction, and the left eye finding is in screen left side constriction.This image of having difference is slightly compared with the experience of life of brain accumulation in brain, and the easier solid that causes is associated, thereby obtains being better than the resultant effect of present existing class three-dimensional imaging.

Further purpose of the present utility model provides a kind of glasses or eyeglass, everyly wear this glasses and watch any TV programme, though be colored or black and white can both produce the class three-dimensional stereo effect, and need not televisor is done any change.Again because image wood body is not done any change, the utility model can be used for watching picture such as projection TV, film, magic lantern equally and produces identical class three-dimensional stereo effect.Meanwhile, the spectators to any Dai Jing of being reluctant watches still can see original plane picture on same screen.

Other further purpose of the present utility model as can be seen, feature and advantage from detailed description hereinafter.

Above-mentioned purpose of the present utility model is to realize by such method, promptly provide a kind of and the similar Television glasses of common spectacles version, or its eyeglass, or can actively be superimposed upon the no pin spectacle-frame that the utility model eyeglass is housed on the common spectacles, the eyeglass of this glasses or spectacle-frame has custom-designed cross-section curve shape: its left border of television image that left eye is seen by left eyeglass is slightly close to the center, right border is then slightly for by extending to the right at the center, and do not produce any displacement by the image that the center of lens position is seen; Its Changing Pattern of image that right eye is seen by right eyeglass just in time with left eye see opposite, that is, right border is slightly close to the center, left border slightly therefrom extends on a mind-set left side, the image by right center of lens position does not produce displacement yet.In fact, the cross section shape of left and right sides eyeglass be with in people's the bridge of the nose every the rotational symmetry of locating to do vertical shaft.Like this, about causing consciously with the means of optics two images that arrive soon in the left and right sides difference slightly, these difference very are similar to the stereoscopic parallax that human eye is watched real-world object again, thereby produce stereoscopic sensation under the combined action of brain.

In order to realize that said method of the present utility model produces relief effect to reach, key is to manufacture and design the variable eyeglass of a kind of tortuosity ratio pointwise.The effect of eyeglass can be explained (consulting accompanying drawing 2) to interception of rays with prism in essence.The light of vertical incidence is the prism generation complications afterwards of α by drift angle, and its tortuous angle γ satisfies following formula:

α＝ (arctgγ)/(ε ₁-1)

When α is smaller, then have

γ＝（ε ₁－1）α，

ε in the formula ₁It is the refractive index of lens material.As if after light was refracted, the seen object of eyes had moved to the drift angle direction.The tortuosity ratio that changes lens when our pointwise just can the seen figure image of pointwise change eyes in other words during the surface curvature of lens.

Be that example illustrates the performance that lens provided by the utility model possess with the right eye now:

1. at optical centre, the object image does not deform;

2. in the optical centre left side, right eye finding object image is extended left, and on the optical centre right side, right eye finding object image is shunk left;

3. the degree of extending and shrinking is directly proportional with the distance away from optical centre.

Concerning left eye, the performance requirement of the utility model lens is just in time opposite with above-mentioned requirement to right eye, that is to say, the optical effect of generation is a rotational symmetry with the vertical shaft at nasal septum place.

Like this, eyes by about the image screen (consulting accompanying drawing 3) seen of two lens, the image of seeing at image right part right eye narrows down, this is like the R face in the accompanying drawing 1, the image right part that left eye is seen then to the right broadening some; At the image left part, the image that left eye is seen narrows down, and this is again like the L face shown in the accompanying drawing 1, the image left part that right eye is seen then extend left broadening some; At the image middle part, the zone that quantity of information is the abundantest concerning the televiewer also is the central area that spectators gaze at, and two findings are basic identical.The true parallax of this effect and human eye has certain similar, thereby makes human brain produce three-dimensional association, produces stereoeffect to a certain degree.

Can see that from the optical instrument that the above the utility model provides the optical effect near the true parallax of human eye that the utility model provides a pair of glasses to be produced is to take place in the horizontal direction only.As for eyelid movement up and down aspect do not require and produce any ray displacement or distortion.This shows that its bus is arranged essentially parallel to the move up and down cylindrical lens of direction of eyelid just can satisfy such requirement.

If its cross-sectional profile outline line of cylindrical lens surface configuration partly is to meet following curvilinear equation:

y＝f（x）

Y represents the thickness direction of lens xsect in the formula, and x represents its Width, and its slope is

Y ' (x) on this curve the slope of some points equate with this tangent of putting pairing prism drift angle.Be example with right eyeglass still, ideal curve should have following characteristics

At optical centre y ' (x)=0;

Optical centre right side y ' (x) ∝ x(be directly proportional);

Image is drawn close to the center, and this section ideal curve should be y=kx ²

At (x) ∝-x of optical centre left side y ';

Image extends to left, and this section ideal curve should be y=-kx ²It is limited watching the scope of TV owing to sight line on glasses by eyeglass, be para-curve so only need keep curve in this limited range.Outside this scope, for the image that eyes are seen has any sudden change, slopes such as the surface employing of lens extend and form straight line and get final product.

If optical centre is positioned at the geometric center of eyeglass, and the eyeglass width is 5 centimetres, and then the effective range of eyeglass is generally near optical centre in 2 cm range.

The principle of determining k is should produce tangible stereoscopic sensation to consider that again human eye stands the ability of prism effect, and this ability is called as the fusion power of human eye.According to the statistics of ophthalmology medical science, human eye fusion power normal value in the horizontal direction is

The outer fusion power of interior fusion power

When seeing 6 meters scopes far away 16 ^△-24 ^△4 ^△-8 ^△

When seeing nearly 33 cm range 24 ^△-30 ^△6 ^△-12 ^△

Here △ is meant vertical prism degree.

The effect that the ideal curve cylindrical lens causes is that right eye finding image is shifted to the left side, and left eye finding image is shifted to the right side, and the data that adapted to are interior fusion power.By last column data as seen, as long as be no more than 16 in eyeglass effective range edge binocular vision difference ^△, two differences image that can permeate fully then to the screen sides image vision.

The utility model is by having experimental results demonstrate at the edge of eyeglass active zone, as long as every eyeglass has 3 ^△-4 ^△Effect just can cause gratifying stereo visual effect, merge in the tolerance limit of power fully in the human eye level.This is equivalent to every eyeglass at the active zone edge

γ=1.72 ° are to 2.29 °, because

γ＝（ε ₁－1）α，

If get γ=2 °, suppose the refraction coefficient ε of lens materials ₁=1.5, so

α＝ (γ)/(（ε－1）) ＝ (2°)/(（1.5－1）) ＝4°

In view of the above, the curve that is suitable for above-mentioned data can obtain into

Situation for above-mentioned γ=2 ° draws K=0.03496 as calculated.

The feature of this curve is continuous everywhere, and derivative is also continuous everywhere, also is that curve is smooth.See accompanying drawing 4 according to the ideal curve shape that this rule changes, comprise that the shape of the eyeglass cross-sectional profile line of this ideal curve is seen embodiment 1, Fig. 5.For γ=1.72 ° various situations, draw K=0.01746 to 0.07027 as calculated to 2.29 °.When γ=2 °, K=0.03496 is an example in this scope.

It is pointed out that if eyeglass only adopts 3 ^△-4 ^△Prism also can make two to observe the image seen and produce horizontal shifts about 3%-4%, thereby produce certain stereoscopic sensation.But from the angle of ophthalmology medical science, under the condition of wearing spectacles, the optic centre place of human eye can only tolerate 1 ^△Error, otherwise can cause uncomfortable sensation such as ophthalmodynia, dizziness.

The utility model has the nemaline lens of special cross-sectional profiles owing to only making, and just can reach and watch the purpose that stereoscopic model is arranged on ordinary screen, implements simple especially.Any possess have optical mirror slip to grind or the factory of glass lens crystallized ability can produce in a large number, cost is quite cheap.Again because the utility model need not to change televisor, and glasses or lens device that all general television set owners can utilize the utility model to provide make the ordinary tv programme of watching have stereoeffect, so the scope of using is very extensive.Moreover since lens of the present utility model can adopt water white material, for example glass, plastics etc. are made, when watching, to brightness, sharpness or color etc. without any realizable loss.If select for use the colourless transparent material of some harm ray of energy elimination fluorescent screen generation to make eyeglass, then the eyes to the wearer also have the certain protection effect.In addition because the utility model is to the section shape of eyeglass specialized designs in addition, so the position that Dai Jing is watched and when watching head whether move without any restriction.Like this, the utility model has just been overcome the shortcoming in the aforementioned prior art effectively.

Above-mentioned feature of the present utility model can have multiple embodiments to realize, is narrated below in conjunction with the drawings and specific embodiments.

Brief description of drawings is as follows:

Fig. 1 represents that the seen different images of eyes comprehensively becomes actual solid.

Fig. 2 represents that light produces refraction by prism.

Fig. 3 represents that effect that plane picture passes through the utility model eyeglass produces distortion back eyes and comprehensively becomes real image.

Fig. 4 represents the curve shape that desirable cylindrical lens cross-sectional profile line is comprised.

Fig. 5 is the drawing in side sectional elevation of desirable cylindrical lens.

Fig. 6 is the two-sided lens drawing in side sectional elevation that is processed into curved surface.

Fig. 7 is the monolateral lens drawing in side sectional elevation that is processed into curved surface.

Fig. 8 is the one-piece construction figure of a kind of embodiment of the utility model Television glasses.Wherein, the 1st, spectacle frame; The 2nd, spectacle-frame; The 3rd, the nose holder; The 4th, hinge; The 5th, left eyeglass; The 6th, right eyeglass.

Embodiment 1

It shown in the accompanying drawing 5 drawing in side sectional elevation of the right eyeglass of a kind of relief effect Television glasses of the utility model embodiment.The cross-sectional profile wire shaped of left and right sides eyeglass axisymmetricly.Distance between the eyeglass is selected to adjust by wearer's pupil spacing severally, perhaps makes different interpupillary distance specifications and is selected by the wearer.The thickness of eyeglass is 3 millimeters.This of close eyes simultaneously is the plane, and relative another side then is the cylinder of ideal curve.Adopt the advantage of ideal curve to be, when the image that left eye is seen partly had extension, this image part that right eye is seen is constriction just in time, under the combined action of human brain, not only produce stereoscopic sensation, and overall image is indeformable.

Embodiment 2

Shown in Figure 6 is a kind of two-sided eyeglass cross section shape outline line that is processed into curved surface of the utility model embodiment.Sometimes for just can adopting this two sides, the needs on the processing and fabricating are processed into the mode of curved surface.As long as this section curved surface of x＞0 of the foregoing description 1 is placed on lens close eyes this simultaneously.The effect that it reached is on optical principle, and is shown in Figure 5 with embodiment 1() eyeglass identical.

Embodiment 3

Fig. 7 is the cross-sectional profile wire shaped of eyeglass of a kind of monolateral making of the utility model embodiment, just concerning right eyeglass, only has this section curved surface of x＜0 of embodiment 1, and this section of x＞0 is the plane.In this case, the image of seeing when eyes extends, and the another eyes see that this image is with a part of constant, the combined action of brain is to produce the relief while, the both sides image will slightly stretch out, and picture is broadening slightly, has the effect of a little broadening screen picture concurrently.

According to the eyeglass device that relief effect is arranged that the utility model the foregoing description provides, can make general glasses form; Also can make the frame form who does not have earpiece, method with any prior art is clamped in any common spectacles front or back with this framework with relief effect eyeglass then, makes myopia or presbyopia glasses wearer needn't wear two pair of glasses and just can watch relief TV programme.Certainly, also can make hand-held glasses that long handle is housed or make with elastic cord or hasp etc. and be enclosed within on the hindbrain fixing form.

The utility model can have multiple variation in force, and for example, the k value is chosen different values in the center of lens both sides, to increase the eyeglass kind of different-effect; And for example, for easy to process, under the very little situation of k value, replace para-curve with circular arc; In addition, in order to improve part spectators' adaptability, with center of lens place y ' area extension (x)=0 line segment of 2 to 3 millimeters; For the convenience of processing, also allow the center of lens place that mismachining tolerance less than 0.25 or the like is arranged.

Eyeglass also allows left and right sides eyeglass exchange to use in actual use.At this moment, the edge of this eyeglass active zone left eye occurs left, right eye image change to the right, but still satisfy the outer fusion power tolerance limit of human eye.Such using method also can produce good class relief effect.

The utility model by the foregoing description in conjunction with the accompanying drawings in addition at length open, but this only is for the utility model being described rather than in addition any restriction of the utility model.All various variations and conversion in claims scope that limits with the utility model principle and feature will be conspicuous for those skilled in the art.Therefore, the utility model is just limited with appending claims.

Claims (8)

1, a kind of the need does that any change just can be watched image on any general television set screen and the Television glasses that produces stereoeffect to existing television system, comprises left and right sides eyeglass and has or do not have the picture frame of two earpieces, it is characterized in that

A) cross section shape of left and right eyeglass with respect to people's nasal septum axisymmetricly,

B) outline line of described eyeglass transverse section comprises, and the curve of smooth and continuous and straight-line segment so that the tortuosity ratio continuous variable of eyeglass, thereby cause image slightly distortion in the horizontal direction by this eyeglass,

C) described eyeglass is being zero and do not produce the prism effect over against near the tortuosity ratio the optical centre of human eye pupil, and

D) described eyeglass is a kind ofly in the eyelid direction that moves up and down image not to be produced any anamorphic cylindrical surface lens.

2, according to the Television glasses of claim 1, it is further characterized in that described eyeglass cross-sectional profile line comprises the curve of being expressed by following formula

K gets any number between 0.01746 to 0.07027 in the formula, also, 0.01746≤k≤0.07027, y represents the coordinate of the thickness direction of eyeglass, and x represents the coordinate of the Width of eyeglass.

3, according to the Television glasses of claim 1 or 2, it is further characterized in that it simultaneously is straight line that described eyeglass cross-sectional profile line comprises it, and relative another side is a curve.

4, according to the Television glasses of claim 1 or 2, it is further characterized in that it simultaneously is curve that described eyeglass cross-sectional profile line comprises it, and relative another side also is a curve.

5, according to the Television glasses of claim 1, it is further characterized in that it simultaneously is straight line that said eyeglass cross-sectional profile wire shaped comprises it, and relative another side also is a straight line, is 3 to form vertical prism degree ^△To 4 ^△Prism.

6, according to the eyeglass of claim 1,2 or 5 described Television glasses.

7, according to the eyeglass of the described Television glasses of claim 3.

8, according to the eyeglass of the described Television glasses of claim 4.

Images