CN1115873A - Single-process stereoscopical lens - Google Patents
Single-process stereoscopical lens Download PDFInfo
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- CN1115873A CN1115873A CN 95111714 CN95111714A CN1115873A CN 1115873 A CN1115873 A CN 1115873A CN 95111714 CN95111714 CN 95111714 CN 95111714 A CN95111714 A CN 95111714A CN 1115873 A CN1115873 A CN 1115873A
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- 238000000034 method Methods 0.000 title claims description 17
- 238000003384 imaging method Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 239000004606 Fillers/Extenders Substances 0.000 claims description 11
- 108091008695 photoreceptors Proteins 0.000 claims description 9
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
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- Stereoscopic And Panoramic Photography (AREA)
Abstract
The stereoscopical lens consists of lens barrel, depth stretcher, image reverser comprising front objective lens, image carrier and back objective lens, composite lens comprising composite objective lens and grating, and imaging objective lens. Images of scenery from different direction separately through above-said optical components form stereo image on single photosensitive body. Unlike available techn, the present stereoscopical lens can complete the photography of stereo picture without needing special development and display equipment, so that it may be widely used in photography trade.
Description
The present invention relates to a kind of stereoscopic photography, particularly a kind of single-process stereoscopical lens with separate unit single-lens camera of three-dimensional fixed base system.
Make stereotome and adopt many single-lens cameras or a multi-lens camera usually, take simultaneously from different orientation, obtain the slightly variant egative film of a few width of cloth pictures, again these egative films are synthesized one and have the image that some vertical bar lines are formed outside machine, then on this composite image, cover one deck grating and make the free stereo picture.This scheme must adopt many single-lens cameras or a multi-lens camera and the expensive synthesis device of enlarging and print.
Jap.P. JP58-54375 provides a kind of single-lens stereocamera, seasonal aperture and the cylindrical grating level of photographing moves in opposite directions, produce moving focal point, thereby obtain a width of cloth inverted stereo picture (being psudoscopic image), outside machine, this inverted stereo image is made into stereotome through special technology again.This scheme equally also needs special printed apparatus and technology.
The object of the present invention is to provide a kind of single-process stereoscopical lens, this camera lens is by lens barrel, degree of depth extender, form as counter-rotating mirror, synthetic mirror, image-forming objective lens, the picture of the different azimuth of scenery respectively through degree of depth extender, as counter-rotating mirror, synthetic mirror, on the single width photoreceptor, form stereoscopic image behind the image-forming objective lens.The common single-lens reflex camera fuselage or the camera body of other type are connected with this camera lens of the present invention can directly obtain the strong stereo-picture of stereoscopic sensation.
Fig. 1 is the structural representation of single-process stereoscopical lens.
Fig. 2 is the structural representation of another kind of single-process stereoscopical lens.
Fig. 3 is the imaging process synoptic diagram of this phtographic lens.
Fig. 4, Fig. 5 are the radial arrangement figure of picture counter-rotating mirror with respect to synthetic object lens 31.
Fig. 6 is the partial enlarged drawing of cylindrical grating.
Realize that the object of the invention adopts following technical measures:
1. be provided with a, b, many optical channels of c, d in camera lens, each passage is found a view to the scenery different azimuth respectively.
2. adopt by preceding object lens 21A～21D, hold the picture counter-rotating mirror 2 that film 22, back object lens 23A～23D constitute, 23A～the 23D optical parametric is identical for wherein preceding object lens 21A～21D and back object lens, scenery MN with respect to the scene of the different azimuth of preceding object lens 21A～21D by respectively independently imaging hold on the film 22, back object lens 23A～23D is thing with the picture that holds on the film 22, forms psudoscopic image M ' N ' (claiming the inverted stereo picture again) on image plane.
3. synthetic mirror 3 is made of synthetic object lens 31 and grating 32, synthetic object lens 31 are equivalent to the rear surface that single-lens object lens are imaged on psudoscopic image M ' N ' on the grating 32 with certain frequency, because the effect of the parallax characteristic of grating 32, image is through behind the grating 32, the image that scene became of each different azimuth of scenery is decomposed in turn by grating 32 each unit, is reassembled in the rear surface of grating 32 to be rich in relief positive video.
4. the arrangement of grating 32 has two kinds, and the one, in photoreceptor T was arranged in camera body outside the camera lens, the light-sensitive surface of photoreceptor T overlapped with the image plane of grating 32, directly obtains stereotome (negative film).Another kind is to place camera lens, and an image-forming objective lens 4 is set after the grating 32, and the positive video of the rear surface of grating 32 is projected on the photoreceptor T that is arranged in the camera body.
5. when the maximum viewpoint span of the picture counter-rotating mirror 2 of this camera lens was greater than 60mm, degree of depth extender 1 can omit.Distance after so-called maximum viewpoint span is meant between the optical axis of object lens 23A and 23D.
According to optical principle shown in Figure 1, the arrangement of above-mentioned grating 32, whether degree of depth extender 1 or image-forming objective lens 4 are set, the present invention is suitable for adopting two kinds of design proposals.
Below in conjunction with example, be described in detail particular content of the present invention.
A kind of single-process stereoscopical lens, as shown in Figure 1, it is characterized in that: this camera lens is by lens barrel, degree of depth extender 1, picture counter-rotating mirror 2, synthetic mirror 3, image-forming objective lens 4 is formed, wherein degree of depth extender 1 is made of the capable catoptron 1A-1A ' of reflecting surface irrelevancy～1D-1D ', picture counter-rotating mirror 2 is by preceding object lens 21A～21D, hold film 22, back object lens 23A～23D constitutes, preceding object lens 21A～21D and back object lens 23A～23D all are symmetrical in optical axis 00 ' and arrange, and its optical parametric must be identical, synthetic mirror 3 is made of synthetic object lens 31 and grating 32, picture a from the different azimuth of scenery MN, b, c, d is psudoscopic image M ' N ' through degree of depth extender 1 and picture counter-rotating mirror 2 imagings respectively, this psudoscopic image is the positive video with stereoeffect through synthetic mirror 3 imagings, is projected on the single width photoreceptor T that is arranged in the camera body through this space image behind the image-forming objective lens 4 again.
Another kind of single-process stereoscopical lens, as shown in Figure 2, it is characterized in that: this camera lens is by lens barrel, picture counter-rotating mirror 2, synthetic object lens 31 constitute, picture counter-rotating mirror 2 is by preceding object lens 21A～21D, hold film 22, back object lens 23A～23D constitutes, preceding object lens 21A～21D and back object lens 23A～23D all are symmetrical in optical axis 00 ' and arrange, and its optical parametric must be identical, picture a from the different azimuth of scenery MN, b, c, d is psudoscopic image M ' N ' through picture counter-rotating mirror 2 imagings, this psudoscopic image M ' N ' is positive video through synthetic object lens 31 imagings, is the picture with stereoeffect through grating 32 imaging on single width photoreceptor T that is arranged in the camera body again.
The picture counter-rotating mirror 2 that the present invention adopts, its preceding object lens 21A～21D, hold film 22, back object lens 23A～23D is the picture inversion component that is connected as a single entity in advance, and be fixed on the lens barrel; The unit relative aperture d/h of cylindrical grating 32 equals the relative aperture D/f of synthetic object lens 31; Effective clear aperture of synthetic object lens 31 should be greater than the maximum viewpoint span of preceding object lens 21A～21D and back object lens 23A～23D.
Camera lens of the present invention can be connected with image recording apparatus such as camera, video tape recorder, kinematographs, also can link to each other with other recording unit that with CCD is photoreceptor, is directly used in the demonstration of stereoscopic image.
Parts in the frame of broken lines among Fig. 1, Fig. 2 are arranged in the camera body.
Fig. 3 shows some M and the N imaging process on the scenery MN, at first, scenery MN is imaged in by preceding object lens 21A～21D respectively with respect to the scene of the different azimuth of preceding object lens 21A～21D and holds on the film 22, and conduct and the corresponding thing of object lens 23A～23D afterwards of preceding object lens 21A～21D, by back object lens 23A～23) imaging respectively, and be imaged as M ' N ', picture M ' N ' is a psudoscopic image, 23A～the 23D optical parametric is identical because preceding object lens 21A～21D is with the back object lens, the optical axis space coincidence of the back object lens 23A～23D of the optical axis of preceding object lens 21A～21D and correspondence, the image distance of preceding object lens 21A～21D, object distance equals the object distance of the back object lens 23A～23D of correspondence, image distance, therefore, scenery by 1: 1 ground " mapping " to the imaging surface M ' N '.
Preceding object lens 21A～21D or back object lens 23A～23D are with respect to radial arrangement such as Fig. 4, shown in Figure 5 of synthetic object lens 31.
The figure of Fig. 6 display dot M rear surface imaging of a unit in cylindrical grating 32.
With prior art relatively, single-process stereoscopical lens of the present invention has following outstanding advantage:
1. the shooting of stereotome is to finish in a step, needn't be divided into " record " and " synthesizing " two steps, has avoided the difficult problem of the difficult coupling of parameter in the two-step approach, and has improved the quality of stereotome.
2. the highly versatile of camera lens, general single-lens reflex camera fuselage disposes camera lens of the present invention just can write down scenery on common film steric information.
3. the original stereotome (sensitive film) of shot record of the present invention amplifies printed apparatus (as the colour enlarger of routine) just can print out the strong stereotome of stereoscopic sensation with common picture, need not specialized equipment or special technology.
4. make the required specific record of stereotome, synthesis device owing to having saved in the past, make the cost of taking stereotome reduce by one more than the order of magnitude, be easy to grasp because the process of taking stereotome and common picture shooting process are just the same again, thereby created condition for the family that is popularized for fast of stereoscopic photography.
5. because camera lens of the present invention has relative independence at record aspect the stereoscopic image, therefore can be very easily be connected with any other picture record or display device, carry out the record or the demonstration of stereoscopic image.
Embodiment 1:
A kind of single-process stereoscopical lens, adopt structure as shown in Figure 1, optical tube length is 250mm, the external diameter of degree of depth extender 1 is that φ 120mm, maximum viewpoint span are 90mm, synthetic object lens 31 effective clear apertures are φ 40mm, degree of depth expansion multiplying power is 3 times, preceding object lens 21A～21D and back object lens 23A～23) be the four eyed structure, its focal length is all 25mm, the relative aperture of synthetic object lens 31 is 1: 1, the spatial frequency of cylindrical grating 32 be 12 lines right/mm, the unit relative aperture is 1: 1, effective clear aperture of image-forming objective lens 4 is φ 30mm, and focal length is 50mm.
Adopt the stereotome of lens shooting of the present invention, its stereoeffect obviously is better than the picture that two-step approach is made.
Embodiment 2:
A kind of single-process stereoscopical lens, adopt structure as shown in Figure 2, by lens barrel, preceding object lens 21A～21D, hold film 22, back object lens 23A～23D, synthetic object lens 31 and constitute, the parameter that it is φ 65mm, all the other elements that lens barrel is of a size of φ 80 * 250mm, synthetic object lens 31 effective clear apertures is identical with embodiment 1.
Claims (6)
1. single-process stereoscopical lens, it is characterized in that: this camera lens is by lens barrel, degree of depth extender (1), picture counter-rotating mirror (2), synthetic mirror (3), image-forming objective lens (4) is formed, wherein degree of depth extender (1) is made of the capable catoptron of reflecting surface irrelevancy (1A-1A ')～(1D-1D '), picture counter-rotating mirror (2) is by preceding object lens (21A)～(21D), hold film (22), back object lens (23A)～(23D) constitute, preceding object lens (21A)～(21D) and back object lens (23A)～(23D) all are symmetrical in camera lens optical axis (00 ') and arrange, and its optical parametric must be identical, synthetic mirror (3) is made of synthetic object lens (31) and grating (32), picture (a) from the different azimuth of scenery (MN), (b), (c), (d) be psudoscopic image (M ' N ') through degree of depth extender (1) and picture counter-rotating mirror (2) imaging, this psudoscopic image is the positive video with stereoeffect through synthetic mirror (3) imaging, pass through image-forming objective lens (4) again after this space image be projected on the single width photoreceptor (T) that is arranged in the camera body.
2. single-process stereoscopical lens, it is characterized in that: this camera lens is by lens barrel, picture counter-rotating mirror (2), synthetic object lens (31) constitute, picture counter-rotating mirror (2) is by preceding object lens (21A)～(21D), hold film (22), back object lens (23A)～(23D) constitute, preceding object lens (21A)～(21D) and back object lens (23A)～(23D) all are symmetrical in optical axis (00 ') and arrange, and its optical parametric must be identical, picture (a) from the different azimuth of scenery (MN), (b), (c), (d) be psudoscopic image (M ' N ') through picture counter-rotating mirror (2) imaging, this psudoscopic image (M ' N ') is positive video through synthetic object lens (31) imaging, and to go up imaging at single width photoreceptor (T) be the picture with stereoeffect through being arranged in grating (32) in the camera body again.
3. according to the phtographic lens of claim 1 or 2, it is characterized in that: object lens (21A)～(21D) before described, hold film (22), back object lens (23A)～(23D) are the picture inversion components that is connected as a single entity in advance, and be fixed on the lens barrel.
4. according to the phtographic lens of claim 1 or 2, it is characterized in that: described grating (32), its unit relative aperture d/h equal the relative aperture D/f of synthetic object lens (31).
5. according to the phtographic lens of claim 1 or 2, it is characterized in that: described synthetic object lens (31), its effective clear aperture should be greater than the maximum viewpoint span of preceding object lens (21A)～(21D) and back object lens (23A)～(23D).
6. according to the phtographic lens of claim 1 or 2, it is characterized in that: described grating (32) preferentially adopts cylindrical grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111714 CN1115873A (en) | 1995-08-01 | 1995-08-01 | Single-process stereoscopical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111714 CN1115873A (en) | 1995-08-01 | 1995-08-01 | Single-process stereoscopical lens |
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| Publication Number | Publication Date |
|---|---|
| CN1115873A true CN1115873A (en) | 1996-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95111714 Pending CN1115873A (en) | 1995-08-01 | 1995-08-01 | Single-process stereoscopical lens |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102461186A (en) * | 2009-06-25 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Stereoscopic image capturing method, system and camera |
| CN103235479A (en) * | 2013-05-06 | 2013-08-07 | 张伟 | Three-dimensional (3D) camera lens and 3D camera system |
-
1995
- 1995-08-01 CN CN 95111714 patent/CN1115873A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102461186A (en) * | 2009-06-25 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Stereoscopic image capturing method, system and camera |
| CN102461186B (en) * | 2009-06-25 | 2015-09-23 | 皇家飞利浦电子股份有限公司 | Stereoscopic image capturing method, system and video camera |
| CN103235479A (en) * | 2013-05-06 | 2013-08-07 | 张伟 | Three-dimensional (3D) camera lens and 3D camera system |
| CN103235479B (en) * | 2013-05-06 | 2016-05-18 | 张伟 | 3D camera lens |
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