CN2140069Y - Lens stereoscope - Google Patents

Abstract

The utility model relates to a lens stereoscope, which belongs to an optical field and can be used for watching TV or pictures to obtain a stereoscopic impression. A pair of transparent thin prisms (a pair of curved reflecting mirrors), whose the included angle of the tangent plane of the slope is changed from zero degree to about 3 DEG, are respectively placed before both eyes; the thick end is toward the center while the thin end is toward two sides. The utility model can make the right side of the picture seen by the left eye unchanged, and the left side of the picture is leftward elongated; the left side of the picture seen by the right eye is unchanged, and the right side of the picture is rightward elongated; so the utility model can generate the stereoscopic scene which is drawing back from the picture.

Description

Lens stereoscope

The utility model is a kind of optical instrument of watching picture or TV to use.

In order to obtain three-dimensional impression, three-dimensional film has used two films of clapping from different visual angles to show simultaneously, watches with polarised light glasses, makes right and left eyes see different film methods separately, and this realizes than difficult for TV or common picture.As long as once introducing, the books and magazines that has made two to see the same picture that separates slightly separately, just can produce three-dimensional impression, as long as this is the thin transparent prismatic lens about about 3 degree of two its angles of use, be placed on two faces at the moment, thick end is to central authorities, just can make two soon to drawing separate slightly, but experimental result, the picture that separates can not produce stereoeffect.The science and technology magazine was introduced and was succeeded in developing the laser stereotelevision, but because of complex and expensive too, can't popularization and application.

The purpose of this utility model is for when watching plane picture or TV, can obtain three-dimensional impression.

Stereoscopic effect is to make its surveyor's staff of picture seen and along with elongation from left to right and gradually, the picture that left eye is seen extends gradually from right-to-left, so just can see that a width of cloth has relief image in right eye.The displacement maximum on the left and right border of image, as long as the visual angle that this displacement forms human eye had been less than once, eyes generally do not have tangible sense of discomfort.

For above-mentioned purpose can become big curved surface prism sheet in the horizontal direction gradually with a kind of refraction angle, the angle on its two inclined-plane is not constant but is increased gradually by 0 degree.A kind of shape of transparent glasses lens such as Fig. 1, angle on A point eyeglass two sides is 0 degree as seen from the figure, the light not refraction of this point to seeing through it, eyeglass is to another side attenuation gradually, the angle of the tangent line of each point and BC is increased to 4 degree gradually from 0 degree on its AB arc, and eyeglass two sides angle is also bigger to the ray refraction angle more greatly.Therefore eyeglass gradually becomes big by thick end to thin end to the ray refraction angle.

When watching picture by this eyeglass, the refraction angle is little, and just little to the skew of image, the refraction angle is big, and is just big to the skew of image, therefore sees the width of cloth picture of elongation gradually and to the right separately left for two.

When watching TV, be that a triangle can be made to the both sides of drawing in the summit with the left eye.One in same work is the triangle on summit with the right eye, and there is an intersection point on two limits in the middle of these two triangles.Can be placed on eyeglass between this intersection point and the human eye, thick end approaches end to both sides to central authorities.Can just put (as Fig. 2) and also can tiltedly put (as Fig. 3) owing to screen size, with people's distance, factors such as the size of eyeglass, in use, turn and mobile eyeglass, be full of the right and left of eyeglass, such elongation that expection is just arranged when requiring image to see through eyeglass, the stereoscopic sensation that generation is good as far as possible.

Need not make triangle during actual the use, as long as move two eyeglasses, make two soon to drawings in do not have the border of eyeglass get final product in overlapping, observe and have a look if close one, where just very clear be in when drawing sees through eyeglass so.

Stereoscope can produce the stereoscopic sensation that retreats from drawing, and at this moment screen has seemed into a window, and we have seen the scene of outside to see through this window.

Stereoscope can be used for appreciating the television image that we like, can be used for television teaching, can make the details of seeing in kind truer.

This device is practical and inexpensive, and stereoscopic sensation is good, and needn't transform televisor.

Utilize said apparatus to see that from the side TV also can produce three-dimensional impression.

Curved surface prism sheet among Fig. 1, its section is surrounded by one section one section semifocal chord BC of garden arc AB and a bit of radius, if the angle of osculation that B is ordered is 4 degree, (this is the maximum angle of this eyeglass just) can prove that the folded heart angle, garden of AB arc also is 4 degree, has determined the long BC of semifocal chord, the heart angle, garden that (BC is the width of eyeglass) and AB arc are folded, can calculate the radius in garden, this figure just can make.The angle that the tangent line of each point is become with BC on the AB arc is increased to the B end gradually by the A end as can be seen.AE is the height of eyeglass, and is just passable as long as the length of AE can cover two of people.

In Fig. 2,3: MN represents TV screen or drawing, and P, Q represent two of people, and ABC represents the curved surface prism sheet.Fig. 2 and Fig. 3 are two width of cloth synoptic diagram, mainly are to show which kind of relative position human eye, eyeglass and picture can be in, and can select use-pattern preferably according to distance and the size of eyeglass and the size of picture of people and picture when using this eyeglass.

In order to use three-dimensional eyeglass, can be made into the device of the similar glasses that vary in size, the smaller is put nearerly from eye.The greater is put far from eye.

A pair of 1 centimeter wide eyeglass is made in suggestion, and is high 2 to 3 centimeters, can be worn on the head as glasses, and about 1 to 2 centimeter away from human eye be on eyeglass, eyeglass can move left and right, and rotates around Z-axis.

The another kind of bigger eyeglass of suggestion is wide 10 centimeters, high 6 centimeters from the about 10-20 centimetre of human eye, fixing on the table with support, eyeglass is also wanted can move left and right and rotation.

A kind of better application is the front that two eyeglasses is placed on telescope tube respectively, (because amplification is arranged, the angle of eyeglass is smaller) since telescope drawing is moved to come in face of us and amplified.This almost can obtain the stereoeffect of approximate three-dimensional film.

Claims (1)

1, a kind of thin prism sheet of curved surface, be used to watch plan view image can produce three-dimensional impression, it is characterized in that, the angle in the section on two inclined-planes of this eyeglass is not a constant, but become big gradually to thin end, thereby the ray refraction angle that sees through it is also increased to thin end gradually by thick end by thick end.

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