CN2279632Y

CN2279632Y - Double-lens stereo camero

Info

Publication number: CN2279632Y
Application number: CN 96226981
Authority: CN
Inventors: 王育进
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-22
Filing date: 1996-07-22
Publication date: 1998-04-22
Anticipated expiration: 2006-07-22

Abstract

The utility model belonging to a photographic apparatus particularly relates to a double-lens stereo camera used to take stereo photographs. The back faces of the photographic lens (2), (3) are equipped with two sets of refraction prism combination (4), (5). The image distance with the optical path length smaller than the photographic lens (2), (3) is relative and parallel to one vertical face of the total reflection prism (5-1) on the total reflection prism (4-2) to form a film channel (8) where a double-face sensitive layer film (13) is imbedded. During filming the object (12) is formed into two stereoscopic images with different angles interlapping in amplitude on the film (13), and then is covered by the plastic grating, then a stereophotograph can be watched. The camera has the advantages of short optical path and excellent focusing effect.

Description

The twin-lens stereocamera

The utility model belongs to photographic equipment, particularly a kind of twin-lens stereocamera of taking stereoscopic photograph.

At present, existing in the world stereoscopic photograph mainly contains two kinds of laser photography and many group exposures, though the stereoscopic photograph of laser shooting has holographic, stereoscopic sensation is strong, and is harmful on portrait, and apparatus expensive, cost are higher, can not popularize; And many group exposure method for imaging existing device mainly contain two kinds, a kind of is the four-barrel stereocamera of the U.S., it takes principle, take a scenery simultaneously by four camera lenses, the image of production is enlarged and print it at the same position of printing paper with the four-barrel enlarger, cover then and go up grating, but make the stereoscopic photograph of direct viewing, but this camera technique developing and printing cost is higher, waste time and energy, and needs special washing-printing equipment, fails penetration and promotion in the world always; Thereby the aperture that utilizes that another kind is the Hong Kong native to be invented moves moving focal point, takes the single-lens stereocamera with steric factor photo, and its shortcoming is that camera costs an arm and a leg, and makes complexity, and can not utilize this principle to make the continous way stereocamera.

The purpose of this utility model is to overcome the shortcoming of above-mentioned stereoscopic photograph method, and a kind of twin-lens stereocamera of the stereoscopic photograph of shooting and producing quickly and easily is provided.

For achieving the above object, the phtographic lens that the twin-lens stereocamera settles 2 focal lengths and image distance to equate on the camera casing, the optical axis of the two is parallel, at the rear end face of 2 phtographic lenses 2 groups of refracting prisms groups are installed respectively, one group is the refracting prisms group that Amici Prism and total reflection prism are formed, another group is the refracting prisms group of total reflection prism and total reflection prism composition, the optical path length of 2 prism groups equates, and image distance less than phtographic lens, the side vertical plane of the total reflection prism below 2 refracting prisms groups relatively and be parallel to each other forms 2 groups of refracting prisms groups of film channel and equates apart from the distance of two phtographic lenses.The image of taking at 2 phtographic lenses is through the refraction of 2 groups of 4 reflecting prisms, reflection, through exposure, between the film channel that forms at 2 total reflection prism side vertical planes, forming the superimposed image of object on 2 angles on the double coated film, obtain having the photo of steric factor after the developing and printing, behind the plastic covering grating, promptly make the have strong relief stereoscopic photograph the same with material object.

The twin-lens stereocamera is formed the catadioptric light path system by 2 groups of phtographic lenses and 2 groups of refracting prisms groups, adopt two-sided medicine film film imaging again, the light path path is short, focusing effect is good, the single exposure imaging, image definition, simple in structure, practical, can make stereoscopic photograph with common washing-printing equipment.

Fig. 1 shows twin-lens stereocamera structural drawing.

Fig. 2 shows the location drawing of twin-lens stereocamera phtographic lens and refracting prisms group.

Fig. 3 shows the location drawing of twin-lens stereocamera phtographic lens and refracting prisms group.

Fig. 4 shows twin-lens stereocamera refracting prisms group axonometric drawing.

Fig. 5 shows that twin-lens stereocamera refracting prisms groups (4), (5) A are to view.

Fig. 6 shows that twin-lens stereocamera refracting prisms groups (4), (5) B are to view.

Fig. 7 shows twin-lens stereocamera refracting prisms group vertical view.

Fig. 8 shows twin-lens stereocamera refracting prisms group index path.

Fig. 9 shows twin-lens stereocamera backsight structural drawing.

Figure 10 shows twin-lens stereocamera forward sight structural drawing.

Figure 11 shows the two-sided medicine film of twin-lens stereocamera stereo film structural drawing.

Figure 12 shows twin-lens stereocamera fundamental diagram.

The 1-casing; The 2-camera lens; The 3-camera lens; 4-refracting prisms group; The 4-1-Amici Prism; 4-2-total reflection prism; 5-prism group; 5-1-total reflection prism; 5-2-total reflection prism; 6-sprocket axle; The 7-tack-up spool; The 8-film channel; 9-magazine storehouse; The 10-optical axis; The 11-optical axis; The 12-object; The 13-stereo film; The 14-magazine; The 15-bonnet; The 16-rewind shaft; Viewfinder behind the 17-; The 18-film-wind tap; 19-shutter button release; The 20-protecgulum; Viewfinder window before the 21-; The 22-protective seam; The 23-protective seam; The blue layer of 24-sense; The blue layer of 25-sense; The yellow filter layer of 26-; The yellow filter layer of 27-; The 28-green layer; The 29-green layer; 30-feels red beds; 31-feels red beds; The 32-binding layer; The 33-binding layer; 34-sheet base

At Fig. 1-7, among Figure 12, go up 2 phtographic lenses (2) of installing at twin-lens stereocamera casing (1), (3) and the refracting prisms (4-1) installed of the interior correspondence position of casing (1), (4-2), (5-1), (5-2), sprocket axle (6), the twin-lens stereocamera that tack-up spool (7) is formed, rear end face at phtographic lens (2) is installed Amici Prism (4-1), total reflection prism (4-2), Amici Prism (4-1) and total reflection prism (4-2) are formed refracting prisms groups (4), Amici Prism (4-1) is in the top of total reflection prism (4-2), the two baseplane overlaps, optical path length is less than phtographic lens (2), (3) image distance, rear end face at phtographic lens (3) is installed total reflection prism (5-1), (5-2), total reflection prism (5-1) and total reflection prism (5-2) are formed refracting prisms groups (5), total reflection prism (5-2) is in the top of total reflection prism (5-1), the two baseplane overlaps, optical path length is less than phtographic lens (2), (3) image distance, 2 refracting prisms groups (4), (5) total reflection prism (4-2) is relative with a side vertical plane of total reflection prism (5-1) and be parallel to each other, form school sheet passage (8), the optical path length of 2 refracting prisms groups equates, 2 refracting prisms groups (4), (5) apart from 2 phtographic lenses (2), (3) distance equates.Phtographic lens (2), (3) focal length and image distance equate, optical axis is parallel, the optical path length that the image distance of phtographic lens (2) is formed the refracting prisms group greater than the Amici Prism (4-1) and the total reflection prism (4-2) of its end face, the optical path length of the refracting prisms group that the image distance of phtographic lens (3) is formed greater than the total reflection prism (5-2) and the total reflection prism (5-1) of end face thereafter, refracting prisms group (4) and (5) can transpositions, refracting prisms group (4), (5) the total reflection prism (5-1) in is relative with a side vertical plane of total reflection prism (4-2) and be parallel to each other, form film channel (8), insert two-sided medicine film film (13)

Fig. 8 shows twin-lens stereocamera refracting prisms group index path, by the refraction of phtographic lens (2) to object (12), object (12) is gone up Ao, Bo 2 points, by about Amici Prism (4-1) transposing, on total reflection prism (4-2) refracts to two-sided medicine film stereo film (13) in the film channel (8), form one again by the image about transposing.By the refraction of phtographic lens (3) to object (12), A, B point on the object (12), about quilt is not changed afterwards by total reflection prism (5-2), be refracted on the two-sided medicine film stereo film (13) of film channel (8) through the total reflection prism (5-1) that is arranged under the total reflection prism (5-2) again, form and phtographic lens (2) and the consistent up and down image of the formed image of refracting prisms group (4).

Fig. 9 shows twin-lens stereocamera backsight structural drawing, when photography, open the bonnet (15) of twin-lens stereocamera, optical film magazine (14) is encased in magazine storehouse (9) locates,, make two-sided medicine film stereo film (13) pass film channel (8) afterwards through refracting prisms group (4) again by pulling out two-sided medicine film film (13) in the magazine, close bonnet (15), (6) be the sprocket axle, (7) are tack-up spool, and (1) is casing, (16) be rewind shaft, (17) are the back viewfinder.(18) be film-wind tap, (19) are the shutter button release.

Figure 10 shows twin-lens stereocamera forward sight structural drawing, open protecgulum (20), will by the rear portion pass the two-sided medicine film film (13) that comes through refracting prisms group (5) before around to sprocket axle (6), be inserted into again on the tack-up spool (7), close protecgulum (20), can take stereoscopic photograph.

Figure 11 shows the two-sided medicine film of twin-lens stereocamera stereo film structural drawing; in order to protect the quality of levying the captured stereoscopic photograph of twin-lens stereocamera; the twin-lens stereocamera adopts the two-sided medicine film stereo film (13) of particular design; outermost layer is protective seam (22), (23) among the figure, and the blue layer of sense is (24), (25), and yellow filter layer is (26), (27); green layer is (28), (29); the sense red beds is (30), (31), and binding layer is (32), (33), and the sheet base is (34).

During shooting, open twin-lens stereocamera bonnet (15) earlier, the optical film magazine (14) of packing into, from optical film magazine (14), pull out two-sided medicine film stereo film (13), process refracting prisms groups (4) are passed the film channel (8) between refracting prisms group (4) and the refracting prisms group (5) afterwards, shut bonnet (15), open the protecgulum (20) of twin-lens stereocamera, pass through refracting prisms group (5) more before, around to sprocket axle (6), be inserted at last on the tack-up spool (7), shut protecgulum (20).Selected shutter speed is found a view, is focused, and pulleying then discharges shutter (19), and a width of cloth stereoscopic photograph is taken and finished.During photography, about object (12) forms by phtographic lens (2), (3), the image of right and left mutually changing, the image that phtographic lens (2) is become is by the Amici Prism (4-1) on top, make become the right and left mutually changing of image, total reflection prism (4-2) reflect by the bottom exposes to two-sided medicine film stereo film (13) again; When the image that phtographic lens (3) is become passes through the total reflection prism (5-2) on top, do not exchange about image, go up exposure by total reflection prism (5-1) reflect to the two-sided medicine film stereo film (13) of its underpart again, because object distance, focal length, image distance equates, the distance of image that object becomes during to the same position of two-sided medicine film stereo film equates, and by the right and left mutually changing of prism group to object image, make object (12) form equal and opposite in direction at the same position of film (13), image one to one up and down, form two overlapped steric factor images of the different angles of subject, this image can get off from the spatial information detail record that photography is seen around the subject, the flushing back is at picture surface plastic covering grating, make people's right and left eyes see a photos of same object different angles simultaneously, the process brain is synthetic to image, produces and see that material object has the stereoscopic photograph of same effect.

The twin-lens stereocamera, shooting, easy to operate, it is simple, quick that photo is made, and takes simple making of photo process of coming out, and can directly watch with eyes having strong relief stereoscopic photograph.Simultaneously, after exposure device and film transport mechanism are done corresponding change, can carry out the continuous stereo photography, and add a cover lens cap before among two camera lenses one, use ordinary film, as general camera camera plane photo, carry out the creation of art of various objectives, a tractor serves several purposes.

Claims

1, the twin-lens stereocamera of a kind of refracting prisms (4-1) that correspondence position is installed in twin-lens stereocamera casing (1) is gone up 2 phtographic lenses (2), (3) and the casing of installing (1), (4-2), (5-1), (5-2), sprocket axle (6), tack-up spool (7) composition is characterized in that:

A. at the rear end face of phtographic lens (2) Amici Prism (4-1) is installed, total reflection prism (4-2), Amici Prism (4-1) and total reflection prism (4-2) are formed refracting prisms groups (4), Amici Prism (4-1) is in the top of total reflection prism (4-2), the two baseplane overlaps, optical path length is less than phtographic lens (2), (3) image distance, rear end face at phtographic lens (3) is installed total reflection prism (5-1), (5-2), total reflection prism (5-1) and total reflection prism (5-2) are formed refracting prisms groups (5), total reflection prism (5-2) is in the top of total reflection prism (5-1), the two baseplane overlaps, optical path length is less than phtographic lens (2), (3) image distance, 2 refracting prisms groups (4), (5) total reflection prism (4-2) is relative with a side vertical plane of total reflection prism (5-1) and be parallel to each other, form film channel (8), the optical path length of 2 refracting prisms groups equates, 2 refracting prisms groups (4), (5) apart from 2 phtographic lenses (2), (3) distance equates

B. the focal length of phtographic lens (2), (3) and image distance equate, optical axis is parallel, the image distance of phtographic lens (2) is formed the optical path length of refracting prisms group greater than Amici Prism of end face (4-1) and total reflection prism (4-2) thereafter, and the image distance of phtographic lens (3) is greater than the total reflection prism (5-2) of end face and the optical path length of total reflection prism (5-1) composition refracting prisms group thereafter.

2, the stereocamera of fitting according to claim 1, it is characterized in that refracting prisms group (4) and (5) can transpositions, the total reflection prism (5-1) of refracting prisms group (4), (5) is relative with a side vertical plane of total reflection two prisms (4-2) and be parallel to each other, form film channel (8), insert two-sided medicine film film (13).