CN2165466Y - Image formation mechanism for stereo camera - Google Patents

Abstract

The utility model relates to an imaging mechanism for a stereo camera. The utility model comprises two sets of light reflection boards which are used for reflecting an optic axis for an object viewed from two angles, wherein, a first optic axis and a second optic axis can achieve uniform exposure through a hole which is provided with a special shutter, wherein, a clamp in which a lattice of film can be arranged is arranged, and the film has two parts. An image can be projected on the first part of the film by the first optic axis through one piece of lens, and the image can be projected on the second part of the film by the second optic axis through the other piece of lens to make a group of images formed on one lattice of film, while the first optic axis and the second optic axis can do cross projection between the lens and the film clamp.

Description

Image formation mechanism for stereo camera

The utility model relates to a kind of camera, the imaging mechanism of a kind of stereocamera of more specifically saying so.

Existing stereocamera is to utilize the identical camera lens of a focusing and shutter to take a pair of image separating about 70 millimeters position, and left eye is watched left side image then, and right eye is watched the right image, will produce stereoeffect.Commercially available stereocamera has two kinds, and above-mentioned is first kind, and the montage of being careful after developing and printing of the photo of its shooting just can be appreciated stereoeffect.Second kind is to utilize an optical branching device, and the benefit of this form is must montage just can not enjoy stereoeffect after taking, but that weak point is a shooting angle is narrow.

The purpose of this utility model is to provide a kind of not only can take wide angle, and film need not any processing just can be appreciated the stereocamera of stereoeffect, and shutter of the present utility model can make each comparison film be subjected to identical exposure rate through common developing and printing at once.

The purpose of this utility model is achieved in that and includes two cover reflectors, two camera lenses, plateholder is characterized in that being provided with in the camera and can make primary optic axis and second optical axis simultaneously with a hole of passing through, and is provided with a may command optical axis and covers by the shutter of the controlled switching of energy in this hole.

The utility model can also be realized by following measure: plateholder is curved, and this bending partly is two image wiring partly on the film, and first of primary optic axis and film partly becomes an angle of 90 degrees, and second of second optical axis and film partly becomes an angle of 90 degrees.Per two cover reflectors are made up of two reflectors respectively, and first camera lens is installed between the first cover reflector and the plateholder, and second camera lens is installed between the second cover reflector and the plateholder, and the shutter in the utility model is covered and is provided with a curved edge.

Principle of work of the present utility model is, the first cover reflector reflects the light of the scenery emission of bat being shot on first angle, the light that the second cover reflector is launched the scenery that is taken reflects on second angle, these two optical axises are by set hole in the camera, and these two optical axises are subjected to the control that the same shutter that can open and close is covered, the time that shutter is opened, the exposure rate of two optical axises is identical, plateholder can be clamped a lattice film, and film has two partly, camera lens at primary optic axis can be at second image of film projection of first part, first and second images also come on the same lattice film, this figure comparison film is developed and printed through common, just can enjoy the three-dimensional fruit that produces at once without any processing.

The accompanying drawing drawing is described as follows:

Fig. 1 is the utility model stereocamera imaging schematic diagram;

Fig. 2 is the wide-angle lens imaging schematic diagram of long back focal length in the utility model;

Fig. 3 is used in imaging schematic diagram on half light source splitter for the wide-angle lens of long back focal length in the utility model;

Fig. 4 is the imaging schematic diagram with the light source splitter of two camera lenses;

Fig. 5 is the utility model stereocamera structural representation;

Fig. 6 one comprises the stereocamera structural representation of a vertical shadow shield;

Fig. 7 A, Fig. 7 B, Fig. 7 C are common shutter operation synoptic diagram;

Fig. 8 A, Fig. 8 B, Fig. 8 C and Fig. 8 D are respectively the operation chart of the special shutter of the utility model stereocamera;

Fig. 9 is the shape at the edge of designed shutter anti-dazzling screen under half situation;

Figure 10 A and Figure 10 B shutter used of the utility model respectively cover shape.

Describe the utility model in detail below in conjunction with embodiment and accompanying drawing thereof.

With reference to Fig. 1, the utility model stereocamera comprises a light source splitter 10, and it has two pairs of two pairs of reflective plane plates 11,12 and 13,14.The position of every pair of reflective plane plate will make an image by one of them of pair of lens 15,16.There is a simple shutter 17 back of two camera lenses 15,16, and film is to be contained on the curved plateholder 19.

Optical axis is that with dashed lines is represented, and the image that has arrow to indicate through reflector 11,12 reflections will and be projected on 20 positions of film 18 by the hole of the control of shutter 17 by camera lens 15.Image by reflector 13,14 reflection can project on 21 positions of film 18 by camera lens 16, forms two images and comes on the film 18.Film 18 is curved, the optical axis that makes two camera lenses 15,16 on position 20,21 with film 18 at an angle of 90.Utilize positive or negative film 18 through common developing and printing and montage or processing especially just can be viewed and admired device by one and be enjoyed stereoeffect.Camera lens 15,16 can be monolithic or multi-disc design, and reflector 11,12 and 13,14 can bending become the camera lens effect.

Another one is improved, and is to produce the wide-angle effect.This can utilize length as shown in Figures 2 and 3, the wide-angle lens of back focal length.This camera lens has a focus lamp 21 in the back, and negative mirror 22 is (see figure 2) in front, and the light source splitter then is installed in (see figure 3) between eyeglass 21 and 22 or in the back of camera lens 21.

Shown in Fig. 4 is the stereocamera that utilizes a camera lens and light source splitter.In the present embodiment, all project on the film 18 by a camera lens 23 by the images of reflector 11,12 and 13,14 reflections, and film this be flat, make film 18 be plane setting.

Fig. 5 illustrates concrete structure of the present utility model.As shown in the figure, the utility model stereocamera optical axis of having two cover reflectors 30, the first cover reflectors 32,34 that image is sent reflects in optical axis 36, the second cover reflectors 38,40 axle that fills that image sends light is reflected in optical axis 42.Be provided with a hole 44 in the utility model, the primary optic axis 36 and second optical axis 42 are by this hole 44, and these 44 more satisfactory positions, hole are to be located between camera lens and the film.To be exactly light can be penetrated in first partly 54 of a lattice film by 44 in hole by first camera lens 62 in more satisfactory arrangement; And optical axis 42 can be penetrated in second partly 56 of a lattice film by 44 in hole by second camera lens 64.As seen from Figure 5, first partly film 54 and second partly film 56 be boundary with lines 66, the size in hole 44 and position can be arranged into light and be penetrated in first partly 54 of film by first camera lens, 62 major parts, the image leap that has a little demarcates 66; Partly also have only a little to cross over boundary 66 on 56 and penetrate at film second by second camera lens 64 by light 42, common two images overlap boundary 66 both sides can be above 1.5 centimetres.

Shadow shield is the most effective and desirable to be to put on the plane of the poly-glue of image, prevents exposure usually.Shadow shield on folder is very near the plane of film, and the shade under the shadow shield is very clearly in this case.The good position of another one shadow shield is exactly to be placed on the plane of the scenery that will take, but this is unpractiaca usually.

Fig. 6 illustrates the embodiment of the stereocamera that adopts three-dimensional shadow shield, and this embodiment is very similar to Fig. 5, and difference only is that hole 44 has been replaced by shadow shield 70.Shadow shield 70 is to be contained in the boundary 66.In this case, the primary optic axis 36 and second optical axis 42 are projeced on the first part film 54 and the two part films 56 through intersecting respectively.Shadow shield 70 can block be penetrated in first portions of light on film 54 and second film 56 partly, and 72 and 74 partly as shown.

And the formed shadow shield in the edge of Fig. 5 mesopore 44 can make the image of the first part film 54 and the second part film 56 have one clearly to demarcate 66.Therefore this hole 44 be provided with following benefit:

(1) position of shadow shield is darker, is easy to become pitch-dark to the edge of shadow shield;

(2) hole 44 can control to first image and second image first partly 54 and second partly have near 56 the boundary 66 suitable overlapping, effect be exactly this position exposure very near film other partly.In order to be illustrated more clearly in this situation, at first to consider first 54 images of accepting camera lens 62 partly of film.If image is the plane of a grey, the edge in hole 44 can make and reflex to image 54 dark gradually before 66 near demarcating, but just fades away after surmounting 66.The same second part film is also all accepted same exposure form, can make boundary 66 unobvious but reverse result takes the photo that comes.The benefit of this structure setting is that generally to take the egative film that comes through this stereoscopic camera be a very similar full lattice film, and to develop and print the station mistake be the half-space film of two 18mm * 24mm and shine the photo of single image and can not make.If but 66 under-exposures of demarcating, the exposure system of developing and printing so automatically can be thought this photo lithography deficiency by mistake, makes the photo of developing and printing out overshadowed thereby adjust voluntarily.

A hole that is subjected to a fast especially gate control is arranged in the utility model stereocamera, make primary optic axis identical with the exposure rate of second optical axis.This shutter is the light source that is used for controlling two camera lenses.

Fig. 7 A is a simple shutter, is provided with a shutter and covers 82, and it covers hole 84.Shutter is covered 85 rotations of 82 threaded shafts, 84 minutes two parts 86,88 in hole.Primary optic axis 36 meeting major parts are by the part in hole 86, and optical axis 42 can mostly pass through 88 parts in hole.In Fig. 7 A, Fig. 7 B and Fig. 7 C, when shutter is covered the rotation of 82 threaded shafts 85, the hole first partly 86 to the second partly 88 exposures are more, so film 50 first partly 43 exposure will be more than the exposure of second part 56.

Fig. 8 A, Fig. 8 B, Fig. 8 C and Fig. 8 D are depicted as special shutter of the present utility model, and its effect is to make first part 86 in hole partly 86 be subjected to identical exposure with second.Shutter covers 90 a curved edge 92, its design is when shutter is covered 85 rotations of 90 threaded shafts, edge 92 will form an angle of 90 degrees with the center line 94 in hole 84, in this case, though it is rotation that shutter is covered, it just looks like the shadow shield 3 that a slice moves along center line 94 directions in the effect of blind hole 84.It is identical that this shutter will make hole 86,88 partly expose.

The utility model plateholder need be clamped a lattice film, and two (see figure 5)s are partly wherein arranged, and this lattice film is the most desirable to be some in the volume film, and two in this lattice film be 54 and 58 shapes φ at an angle partly.And this angle φ can surpass 90 degree, (see figure 5) usually.The effect of this arrangement is exactly to make primary optic axis meeting and 54 one-tenth an angle of 90 degrees of the first part film, and meeting of second optical axis and 56 one-tenth 90 degree of second part film angle.

The utility model stereoscopic camera comprises two camera lens (see figure 5)s, the optical axis of first camera lens can be incident upon image first part 54 of film, the optical axis of second camera lens can be incident upon image second part 56 of film, two images also come on the film, and first and second optical axises intersect projection between two camera lenses and film.

Claims (7)

1, a kind of imaging mechanism of stereocamera, include two cover reflectors, two camera lenses, plateholder, it is characterized in that being provided with in the camera and can make primary optic axis and second optical axis, and be provided with a may command optical axis and cover by the shutter of the controlled switching of energy in this hole simultaneously with a hole of passing through.

2, according to the imaging mechanism of a kind of stereocamera of claim 1, it is characterized in that described film class is curved, this bending partly is two image wiring partly on the film, and first of primary optic axis and film partly becomes an angle of 90 degrees, and second of second optical axis and film partly becomes an angle of 90 degrees.

3, according to the imaging mechanism of a kind of stereocamera of claim 1, it is characterized in that described film first partly and the second angle φ that partly is bent into 〉=90 spend.

4,, it is characterized in that each two reflector of every cover reflector in the described two cover reflectors according to the imaging mechanism of a kind of stereocamera of claim 1.

5, according to a kind of three-dimensional device camera of claim 1, it is characterized in that described two camera lenses, first camera lens is contained between the first cover reflector and the plateholder, and second camera lens is contained between the second cover reflector and the plateholder.

6, according to the imaging mechanism of a kind of stereocamera of claim 1, it is characterized in that described plateholder is the plane.

7,, it is characterized in that shutter covers a curved edge according to the imaging mechanism of a kind of stereocamera of claim 1.

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