CN101395519B - 3-D photographing lens system - Google Patents
3-D photographing lens system Download PDFInfo
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- CN101395519B CN101395519B CN200780007711XA CN200780007711A CN101395519B CN 101395519 B CN101395519 B CN 101395519B CN 200780007711X A CN200780007711X A CN 200780007711XA CN 200780007711 A CN200780007711 A CN 200780007711A CN 101395519 B CN101395519 B CN 101395519B
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- relay lens
- image
- galvanometer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/105—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens with movable lens means specially adapted for focusing at close distances
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/14—Mountings, adjusting means, or light-tight connections, for optical elements for lenses adapted to interchange lenses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
- H04N13/236—Image signal generators using stereoscopic image cameras using a single 2D image sensor using varifocal lenses or mirrors
Abstract
Provided is a three-dimensional image capturing lens system having a structure in which left and right image sensing lenses are provided, and light is synthesized to form an image on a single CCD (charge-coupled device) in order to prevent loss of light intensity.
Description
Technical field
The present invention relates to be used to take the Objectif photographique en 3 d of 3-dimensional image, relate more specifically to a kind of Objectif photographique en 3 d, a left side and right image sensing lens are provided in its structure, and light compositing has been gone up imaging at single CCD (charge-coupled image sensor), thereby prevented light intensity loss.
Background technology
Nowadays, along with understanding, various researchs have not only been carried out at home but also worldwide to the importance of 3-dimensional image.
Yet although various research makes progress to some extent, these researchs mainly lay particular emphasis on demonstration.Therefore, the research to the 3-dimensional image capture apparatus does not almost make progress.
Ironically, although recognized the importance of 3-dimensional image, it is conventionally believed that filming image utilizes two cover lens combinations to carry out simultaneously.
Yet, in the middle of reality, use two cover lens combinations to bring more problem than use one cover lens combination.
The first, as shown in Figure 1, when each is made of lens 120 and main body 110 when two cover lens combinations 100, be difficult to keep the equidistant distance of eyespot (eyespot) with the people.
The second, two cover lens combination 100 is difficult to synthesize with circuit.
The 3rd, aspect cost, use two cover lens combinations 100 to cause cost to increase.In addition, be difficult to unified operation zoom lens and focusing lens.In addition, be not easy devices such as additional instance such as motor.
The 4th, under the situation of tight close-up (extreme close-up), during shot object 140, can not accurately realize angular setting with two cover lens combinations 100.In addition, because motor and device (not shown) must be extra additional, it is big that the size of lens combination becomes.
The 5th, when lens combination when core tilts image with near object taking, can produce keystone distortion.This just causes producing so-called vertical parallax, and wherein left image and right image do not overlap each other.
In the middle of reality, the broadcasting lens of HD (high resolving power) grade are not to take purposes at three-dimensional to make at first.Therefore, the lens thicker external diameter of lens (usually more than or equal to 95mm), and its main body 1.5 times of thickness for this reason.Therefore, two cover lens combinations 100 are spaced apart from each other greater than the distance of clear eye distance (about 65mm).As a result, when reproducing the image of tight close-up shooting, image can not clearly be discerned by human eye.In addition, because lens combination 100 volumes are big and weight is big, be not easy to realize filming image.
To use two cover lens combinations 100 to carry out the problem that takes place when 3-dimensional image is taken in order solving, partly to have developed a kind of Objectif photographique en 3 d, wherein in a cover lens combination, comprise binocular lens (binocular lenses).
For example, shown in Fig. 2 A and 2B, can be on conventional video camera 200 attached breakout box (adapter) lens combination 210 of focusing of exempting from binocular compound (duplex) structure.
For this structure, breakout box is to design under the situation of the lens capability of not knowing existing video camera.Therefore, can not obtain enough resolution after the assembling.In addition, if take wide image angle image, then, angle is difficult to keep binocular distance (65mm) because becoming broad in the front portion of camera lens.
In addition, when the focal length of zoom lens built-in in the video camera 200 changes, the incidence point of key light, that is, the entrance pupil position changes.Therefore, for by 4 lens combination L1, L2, the breakout box lens combination that L3 and L4 form, entrance pupil must change according to the entrance pupil that zoom lens require and change.
Because the breakout box lens combination can not compensate this, so produced a kind of like this phenomenon (black surround), that is, the visual angle of formation is big inadequately, therefore looks on every side and deceives.
In order to calibrate left and right sides light beam, used beam splitter (being used for synthesizing from mirror M 1 device of the two-beam of M2 and M3 reflection).Therefore, only there is 50% light beam to use, and lost remaining 50% light beam.
According to this structure, limitation is that the quality of image of the 3-dimensional image that obtains is lower.
Except said structure, as shown in Figure 3, zoom lens 310 are made of 4 lens combination: first lens combination 311 that is used to focus; Be used to revise and compensate second lens combination 312 of magnification; The 3rd lens combination 313 and as the 4th lens combination 317 of main lens group.
The 3rd lens combination 313 back of zoom lens 310 are provided with the aperture unit (not shown).The aperture unit back is provided with total reflection prism 315 and rectangular prism (X-cube) 316.
Aperture unit is arranged on the 3rd lens combination 313 back, total reflection prism 315 fronts.The position that almost touches aperture unit is provided with rotating disc 314, the light crested of right image when the light transmission aperture unit of left image thus, and the light crested of left image when the light transmission aperture unit of right image.Therefore, on the CCD (not shown), alternately form left image and right image.
Two optical axis (vergence: be parallel the angle when observing object) when object is positioned at the infinite distance.On the other hand, when object is positioned at closer locations, be positioned at the rotation of total reflection prism 315 of the 3rd lens combination 313 back of zoom lens 310 by utilization, vergence changes along with the object that is positioned at closer locations.
Thereby owing to rectangular prism 316 is arranged between the 3rd lens combination 313 and the 4th lens combination 317 light is synthesized, so be difficult to design the zoom lens that have than high power (high zoom ratios).In the middle of reality, zoom ratio is limited to maximum 3 times of initial value of only being.
According to this structure, when seeing through light 320 that the binocular lens receive and be used to by the synthetic 3-dimensional image of rectangular prism 316, the feature of rectangular prism 316 will be treated to be made as maximum 25% with the intersity limitation of light 320.
For example, when the F number of the lens of developing was 2.8, only available maximum 1/4 light intensity was because rectangular prism 316 is used to the synthetic light that sends from left and right sides.As a result, obtain the lens of F5.6.
In addition, if rectangular prism 316 is made to such an extent that be not very accurate, just may form Dual Images.
In order to solve the problem that rectangular prism 316 only can use 25% light intensity, a kind of method is to incorporate optical splitter in the structure of Fig. 3.Utilize optical splitter can use maximum 50% light intensity.Yet 100% use is still impossible.
Summary of the invention
In order to address the above problem, the invention provides a kind of Objectif photographique en 3 d, wherein by optical transmitter/reverberator rather than rectangular prism or the beam splitter by the component construction of selecting from following group is set, can obtain 3-dimensional image than high zoom ratios and high-resolution, and can not lose light intensity, described group of galvanometer that comprises rotating disc, completely reflecting mirror and the formation catoptron of completely reflecting mirror and alternating reflex/transmission, or completely reflecting mirror and digital catoptron.In addition, utilize an aperture unit rather than utilize two aperture unit (not shown) of binocular lens to obtain simple structure.Specifically, in this Objectif photographique en 3 d, the focal length of first relay lens is formed the focal length that equals second relay lens, and obtaining thus is 1 magnification, and via the parallel light of the first relay lens transmission propagate into second relay lens to carry out parallel incident.
One aspect of the present invention provides a kind of Objectif photographique en 3 d, and this system comprises: the front lens that is arranged on its optical system front portion; Be formed on first relay lens of front lens back; Thereby be formed at the alternately optical transmitter/reverberator of transmission or reflection of light that the first relay lens back makes left image and right image; Thereby be formed on second relay lens of the quality of image of optical transmitter/reverberator back compensation incident light; Thereby be formed on the second relay lens back and will be divided into the colour-mixing prism of Red Green Blue component via the quality of image of light through compensation of the second relay lens incident; And CCD, wherein the focal length of first relay lens is formed the focal length that equals second relay lens, acquisition is 1 magnification thus, therefore the front focus of first relay lens is positioned on the picture point that is formed by front lens from the end on observation light time, thereby the parallel light ground via the first relay lens transmission is propagated, to incide abreast on second relay lens, on as the plane, form focus thus.
Of the present invention above-mentioned aspect in, this optical transmitter/reverberator can be used from by completely reflecting mirror and rotating disc, completely reflecting mirror and galvanometer, or the element of selecting in the group that constitutes of completely reflecting mirror and digital catoptron constitutes.
In addition, this front lens can be made of dismantled and assembled zoom lens or fix-focus lens.
In addition, this galvanometer can have one or two catoptron, and this catoptron can a left side/right or up/rotation down.
In addition, this galvanometer can be constructed to make the angle of this catoptron for to become 0 ° or 45 ° with respect to the light via relay lens incident.
In addition, in this galvanometer, left side light can transmission and is directed to CCD when the angle of catoptron is 0 °, and right side light can reflect and be directed to CCD when the angle of catoptron is 45 °.
In addition, this rotating disc can have one or more holes.
According to Objectif photographique en 3 d of the present invention, the component construction that utilization is selected from the group of being made up of completely reflecting mirror, rotating disc, galvanometer and digital catoptron, made up that to have the same focal length and magnification be 1 first relay lens and the optical transmitter/reverberator of second relay lens, obtained on a CCD, forming the image that forms by front lens and the outstanding advantage that can not lose light intensity.
In addition, compare with the 3-dimensional image image pickup method that utilizes two cover lens combinations of routine, the distance between the binocular lens can reduce to 65mm.In addition, compare with the conventional structure that adopts beam splitter, can obtain not have the 3-dimensional image of light intensity loss with the conventional structure that adopts rectangular prism.In addition, be positioned at anterior front lens, can easily realize the lens replacement by only replacing.
Description of drawings
Fig. 1 has been an illustration utilizes two lens to take the synoptic diagram of the conventional method of 3-dimensional image;
Fig. 2 is an illustration is used to utilize the conventional binocular breakout box of exempting to focus to take the figure of structure of the optical system of 3-dimensional image;
The figure of the structure of the optical system that Fig. 3 is an illustration is used to utilize conventional rectangular prism to take 3-dimensional image;
Fig. 4 A is the synoptic diagram of conduct according to the rotating disc of the part of the optical transmitter/reverberator of Objectif photographique en 3 d of the present invention;
Fig. 4 B is an illustration according to the light path of the Objectif photographique en 3 d of the rotating disc of employing Fig. 4 A of the present invention and completely reflecting mirror and the figure of structure thereof;
Fig. 5 is an illustration according to the figure of the structure and the light path of relay lens of the present invention;
Fig. 6 is an illustration according to the figure of the mode of operation of the front lens of three-dimensional camera shooting lens of the present invention;
Fig. 7 is an illustration according to the figure of the optical transmitter/reverberator of first embodiment of the invention;
Fig. 8 is an illustration according to the figure of the optical transmitter/reverberator of second embodiment of the invention;
Fig. 9 is an illustration according to the figure of the optical transmitter/reverberator of third embodiment of the invention;
Figure 10 A and 10B are illustrations according to the figure of the optical transmitter/reverberator of four embodiment of the invention;
Figure 11 is the figure according to the optical transmitter/reverberator of fifth embodiment of the invention.
Embodiment
Describe Objectif photographique en 3 d of the present invention below with reference to accompanying drawings in detail.
With reference to figure 4A and Fig. 4 B, the front portion of Objectif photographique en 3 d is provided with the front lens 410 that is made of fix-focus lens or zoom lens.
According to the embodiment of the present invention, front lens 410 is by first lens combination 411, second lens combination 412, the 3rd lens combination 413, the 4th lens combination 414 and the zoom lens that constitute as the 5th lens combination 415 of main lens group.Front lens 410 can be used as fix-focus lens or zoom lens.Yet in the following description, front lens will be limited to zoom lens.
The 5th lens combination 415, promptly the main lens group allows the final sharp image that forms.
The 5th lens combination 415 back of front lens 410 are provided with first relay lens 420.
First relay lens, 420 back are provided with optical transmitter/reverberator 430, make the light beam of left and right sides image replace transmission or reflection.
Optical transmitter/reverberator 430 comprises completely reflecting mirror 431-1,431-2 and the 431-3 that is used to change light path, and substitutes rectangular prism, has the rotating disc 432 so as to one or more hole 432a of hocket transmission and reflection.Rotating disc 432 rotates by motor 432b.
Optical transmitter/reverberator 430 back are provided with aperture unit 450, to regulate light intensity by the aperture of regulating light beam (or light) transmission.
At this, aperture unit 450 and rotating disc 432 be designed to conjugation (conjugation is meant the such relation between a pair of point, line or the numeral, and is promptly specifically relevant, though make described when exchanging their characteristic do not change yet).Thus, place rotating disc 432 and make it to serve as another aperture unit.
Therefore, aperture unit 450 can be arranged between the 4th lens combination 414 and the 5th lens combination 415 of front lens 410.Alternatively, aperture unit 450 can be arranged on after the position near the rotating disc 432 of optical transmitter/reverberator 430.
In order to keep conjugate condition, must the zoom process, (magnification changes according to focal length variations) keep special angle from the key light of zoom lens outgoing.For this reason, the position that is arranged on the position of the 4th lens combination 414 of front lens 410 and the aperture unit 450 between the 5th lens combination 415 and the 5th lens combination 415 must be designed in the zoom process constant, so that key light keeps constant shooting angle.
Yet if the position of aperture unit 450 must be variable in the zoom process, the position that is arranged on the optical system of aperture unit 450 back must change, so that keep constant angle from the key light of zoom lens outgoing.
The back of aperture unit 450 is provided with second relay lens 460.
The back of second relay lens 460 is provided with colour-mixing prism 470.CCD480 is arranged on the back of colour-mixing prism 470.
According to structure of the present invention, when front lens 410 forms the front focus position alignment of the position on picture plane of images and first relay lens 420, the light that first relay lens 420 is crossed in transmission becomes directional light, then passes the hole of rotating disc 432 or is reflected in the position that does not have the hole.
Utilize second relay lens 460, directional light forms image on the CCD480 that is arranged at colour-mixing prism 470 back.
Colour-mixing prism 470 is divided into the Red Green Blue component with incident light, to form image on CCD480.
When using tight close-up, completely reflecting mirror 431-1,431-2 and 431-3 not only change vergence, and change light direction.This is according to carrying out around the identical principle of approaching object rotation with two total reflection prisms 315 of Fig. 3.
Completely reflecting mirror 431-1 and 431-3 rotate with opposite directions, and completely reflecting mirror 431-2 and 431-3 have realized simple physical construction thus with mutually the same direction rotation.
In Objectif photographique en 3 d of the present invention, the focal length of front lens 410 is that 7.53mm is to 75.3mm.The zoom ratio of zoom lens is 10, and F number (F#) is 2.8.
The size of CCD480 is 2/3 inch (the actual catercorner length that forms the zone of image is 11mm), and its ratio of width to height is 16:9.Therefore, the size of CCD480 becomes 9.59mm wide (level) x5.39mm dark (vertically).
If focal length is 7.53mm, then calculate as downwards angle of visibility: level angle is 65 ° of [=2 * tan
-1(9.59/ (2 * 7.53))], vertical angle is 36.6 ° of [=2 * tan
-1(5.39/ (2 * 7.53))], the diagonal angle is 74.6 ° of [=2 * tan
-1(11/ (2 * 7.5))].
In maximum feature length is under the situation of 700mm, with 2.658 ° of [=tan
-1(65/2/700)] observed the object that is positioned at 65mm binocular distance center, this is called as change of vergence (vergencevariation).Zoom lens must be designed to, make its can be in the horizontal direction maximum 67.658 ° (=65 °+2.658 °) locate filmed image.When being converted to the diagonal angle, zoom lens must be related to becoming, make under the catercorner length of 12.1mm, to keep higher image quality.
Therefore, these lens be designed to have than common lens wide 10%[=(12.1-11)/11] the visual angle.
This be because the angle of completely reflecting mirror 431-2 and 431-3 rotation is the visual angle of approaching object change half.As a result, reflection angle obtains aiming at, and makes it possible to the variation at full remuneration visual angle.Therefore, the position from completely reflecting mirror 431 back begins to be formed uniformly light path.
The focal length of first relay lens 420 and second relay lens 460 is 40mm, and the F number equals 2.8, and is identical with front lens 410.
It is the aperture of 14.29mm (=40/2.8) that rotating disc 432 and aperture unit 450 all can have the diameter that light passes.
In general, (show and be designed to structure and the light path that magnification is 1 relay lens) as shown in Figure 5, when the focal length of first relay lens 420 identical with the focal length of second relay lens 460, make the magnification of each relay lens all become at 1 o'clock, the F number of zoom lens equals the F number of each relay lens.On the other hand, when the focal length of the focal length of first relay lens 420 and second relay lens 460 not simultaneously, realize this design with different concepts.
For example, suppose that the focal length of first relay lens 420 is 40mm, and the focal length of second relay lens 460 is 60mm.In the case, by utilizing the relay lens unit is 1.5 optical system as magnification, even the catercorner length of the image that is formed by zoom lens is 7.333mm, because the relay lens unit has amplified 1.5 times with it, catercorner length also becomes 11mm in the position of CCD480.
Therefore, the size of zoom lens can minimize, and therefore advantageously, the binocular distance can be remained 65mm.
Yet, for the F number that makes overall optical system is 2.8, zoom lens design must be become the F number be 1.87 (=2.8/1.5).
Under duty according to the zoom lens of the front lens 410 of Objectif photographique en 3 d of the present invention, as shown in Figure 6, when the front focus position alignment of the position on the picture plane that front lens 410 forms and first relay lens 420, the light that passes first relay lens 420 becomes directional light.Then, light forms image via optical transmitter/reverberator 430, aperture unit 450, second relay lens 460 and colour-mixing prism 470 on CCD480.In the case, wide-angle, middle Jiao, and the structure and the light path of long burnt type change according to its feature.
[first embodiment]
Fig. 7 shows the galvanometer that the rotating disc according to the replacement optical transmitter/reverberator of first embodiment of the invention is provided with.With reference to Fig. 7, two front lenss 410 that are positioned at the left and right sides have kept the binocular distance of 65mm and have been arranged on the front portion, make image be formed in the space of front lens 410 back.Utilize first relay lens 420 that video conversion is directional light.Simultaneously, use completely reflecting mirror 431-1 and 431-2, thereby come resultant image by galvanometer 433, wherein two catoptron 433-1 and 433-2 are with 50 ° of joints.Therefore, image is formed on the CCD480 via second relay lens 460.
Specifically,, be constructed such that catoptron 433-1 and 433-2 are formed on 50 ° in the galvanometer 433 of both sides, reflected by completely reflecting mirror 431-1 from the light of the initial incident in left side for the light reflective operation, and thus to the right deflection (refract) 90 °.In the case, if galvanometer 433 has been rotated counterclockwise 40 °, then be reflected mirror 433-2 reflection of light, 90 ° of deflections are directed to second relay lens 460 thus.
On the contrary, initially the light from right side incident is reflected by completely reflecting mirror 431-2, thus to the left deflection 90 °.
In the case, if galvanometer 433 has turned clockwise 40 °, then be reflected mirror 433-1 reflection of light, 90 ° of deflections are directed to CCD480 thus.
[second embodiment]
Fig. 8 illustration according to the present invention the rotating disc 432 of the replacement optical transmitter/reverberator 430 of two embodiments and the galvanometer that is provided with.With reference to Fig. 8, two front lenss 410 have kept the binocular distance of 65mm, and light is via these two front lens 410 incidents, to form image in the space of front lens 410 back.Utilize first relay lens 420 that image is become directional light.Simultaneously, use completely reflecting mirror 431-1 and 431-2, thereby come resultant image by the galvanometer 434 of attached catoptron 434-1.Therefore, image is formed on the CCD via second relay lens 460.
Specifically, for the light reflective operation of the galvanometer 434 that is made of catoptron 434-1, initially the light from left side incident is reflected by completely reflecting mirror 431-1, thus to the right deflection 90 °.In the case, if galvanometer 434 turns clockwise 90 °, then be reflected mirror 434-1 reflection of light, 90 ° of deflections are directed to CCD thus.
On the contrary, initially the light from right side incident is reflected by completely reflecting mirror 431-2, then 90 ° of deflections to the right.
In the case, if galvanometer 434 is rotated counterclockwise 90 °, then be reflected mirror 434-1 reflection of light, 90 ° of deflections are directed to second relay lens 460 thus.
Therefore, constructed galvanometer 434, to form roughly Y shape with respect to completely reflecting mirror 431-1 and 431-2 with a catoptron.Along with galvanometer half-twist repeatedly, the light beam alternating reflex of a left side/right image.As a result, can on CCD, alternately form a left side/right image, and can as the situation of using rectangular prism, light intensity loss not occur.
[the 3rd embodiment]
Fig. 9 illustration according to the present invention the rotating disc 432 of the replacement optical transmitter/reverberator 430 of three embodiments and the galvanometer that is provided with.With reference to Fig. 9, two front lenss 410 have kept the binocular distance of 65mm, and light via these two front lens 410 incidents in the space of front lens 410 back, to form image.Utilize first relay lens 420 that video conversion is directional light.Simultaneously, use completely reflecting mirror 431-1 and 431-2, thereby come resultant image by the galvanometer 435 of attached catoptron 435-1.Therefore, image is formed on the CCD via second relay lens 460.
Specifically, for the light reflective operation of the galvanometer 435 that is made of catoptron 435-1, initially the light from left side incident is also deflected into the right side thus by completely reflecting mirror 431-1 reflection.In the case, if the angle that galvanometer 435 has turned clockwise and rotated much smaller than the galvanometer 434 of second embodiment, then be reflected mirror 435-1 reflection of light is directed to second relay lens 460 thus.
On the contrary, initially the light from right side incident is reflected by completely reflecting mirror 431-2, then deflects into the left side.
In the case, if galvanometer 435 has been rotated counterclockwise the angle of being rotated much smaller than the galvanometer 434 of second embodiment, then be reflected mirror 435-1 reflection of light is directed to second relay lens 460 thus.
Therefore, thus having constructed the galvanometer 435 with a catoptron has formed roughly W shape with respect to completely reflecting mirror 431-1 and 431-2.Along with galvanometer rotation to the left and right repeatedly, the light beam alternating reflex of a left side/right image.As a result, can on CCD, alternately form a left side/right image, and can as the situation of using rectangular prism, light intensity loss not occur.
[the 4th embodiment]
Figure 10 A and 10B illustration according to the present invention the rotating disc of the replacement optical transmitter/reverberator of four embodiments and the galvanometer that is provided with.With reference to Figure 10 A and 10B, reflect by completely reflecting mirror 431-1,431-2 and 431-3 via the light of front lens 410 and 420 incidents of first relay lens.Light is sent to the galvanometer 436 with respect to completely reflecting mirror 431-1,431-2 and the asymmetric setting of 431-3/formation subsequently.Light changes and transmission or reflection according to the angle of galvanometer 436 subsequently.
Specifically, shown in Figure 10 A, when galvanometer 436 is set to become 0 ° with parallel light, the left side directional light is propagated to CCD subsequently by transmission, and shown in Figure 10 B, when galvanometer 436 is set to directional light when at 45, the right side directional light is reflected and propagates to CCD.
In the case, galvanometer 436 is constituted as, make a catoptron 436-1 left side/right rotation or on/move down so that transmittance/reflection.
Below detailed description being constituted as can be left/operation of the galvanometer 436 of right side rotation.When from the directional light generation transmission of first relay lens, 420 left side incidents and thus when CCD propagates, thus galvanometer 436 left/right side rotates and becomes 0 ° with respect to directional light.When reflection takes place and therefore when CCD propagates from the directional light of first relay lens, 420 right side incidents, thus galvanometer 436 left/right side rotates at 45 with respect to directional light.
In the case, if galvanometer 436 is oriented to become 0 ° with respect to the light of transmission, then light generation transmission and not being reflected.
Below description is constituted as and goes up/operation of the galvanometer 436 that descends to move.When from the directional light generation transmission of first relay lens, 420 left side incidents and thus when CCD propagates, thereby galvanometer 436 moves up and makes catoptron 436-1 not cover directional light.When the directional light from the 420 right side incidents of first relay lens reflection takes place and is directed to CCD thus, at 45 with respect to directional light thereby galvanometer moves down.
In the case, if galvanometer 436 moves up so that transmitted light is not blocked, then light generation transmission and not being reflected.
When galvanometer 436 is set to transmitted light when at 45,90 ° of light deflections are propagated thus.
That is, be set to become with respect to the transmission directional light structure of 0 ° or 45 ° according to this galvanometer 436, before moving its position, galvanometer 436 is fixed on 45 °, and therefore is set at 45 with respect to directional light.Therefore, the directional light from the 420 right side incidents of first relay lens is reflected with guiding CCD.After galvanometer 436 moved up, galvanometer 436 was not on the position that light is propagated.Therefore, can not be directed to CCD, and only be that light from the 420 left side incidents of first relay lens is directed to CCD from the light of first relay lens, 420 right side incidents.
[the 5th embodiment]
Figure 11 illustration according to the present invention the rotating disc 432 of the replacement optical transmitter/reverberator 430 of five embodiments and the digital mirror device (DMD) that is provided with.With reference to Figure 11, by completely reflecting mirror 431-1 and 431-2 reflection, then be sent to DMD437 and secondary reflection again via the light of front lens 410 and 420 incidents of first relay lens.Light through the DMD437 reflection is sent to second relay lens 460.
DMD437 has a plurality of mirror units.Each mirror unit all side by side rotates with the right side to the left.Therefore, the directional light through 420 transmissions of first relay lens is sent to second relay lens 460.
DMD437 also is set to have roughly W shape with respect to completely reflecting mirror 431-1 and 431-2.
Therefore, in Objectif photographique en 3 d of the present invention, in the binocular distance is 65mm and the space that fore front lens 410 back are set, form image, and utilize first relay lens 420 that video conversion is directional light.Then, under the acting in conjunction of completely reflecting mirror 431-1,431-2 and 431-3, rotating disc, galvanometer and DMD, directional light is synthesized.As a result, utilize second relay lens 460 on CCD, to form image.
Claims (7)
1. Objectif photographique en 3 d, this Objectif photographique en 3 d comprises:
Be arranged on the front lens of its optical system front portion;
Be formed on first relay lens of this front lens back;
Thereby be formed at the alternately saturating reverberator of light of transmission or reflection of light that the first relay lens back makes left image and right image;
Thereby be formed on second relay lens of the quality of image of the saturating reverberator of this light back compensation incident light;
Thereby be formed on the second relay lens back and will be divided into the colour-mixing prism of Red Green Blue component via the quality of image of light through compensation of the second relay lens incident; And CCD,
Wherein the focal length of first relay lens is formed the focal length that equals second relay lens, acquisition is 1 magnification thus, therefore the front focus position of first relay lens is positioned on the picture point that is formed by front lens from the end on observation light time, thereby the parallel light ground via the first relay lens transmission is propagated, to incide abreast on second relay lens, on as the plane, form focus thus.
2. Objectif photographique en 3 d according to claim 1, wherein the saturating reverberator of this light is to use the element of selecting from the group that is made of completely reflecting mirror and rotating disc, completely reflecting mirror and galvanometer or completely reflecting mirror and digital catoptron to constitute.
3. Objectif photographique en 3 d according to claim 1, wherein this front lens is made of dismantled and assembled zoom lens or fix-focus lens.
4. Objectif photographique en 3 d according to claim 2, wherein this galvanometer has one or two catoptron, and this catoptron can about or up and down the rotation.
5. Objectif photographique en 3 d according to claim 4, wherein this galvanometer is constructed to make that the angle of this catoptron becomes 0 ° or 45 ° with respect to the light via relay lens incident.
6. Objectif photographique en 3 d according to claim 5, wherein in this galvanometer, left side transmittance and be directed to this CCD when the angle of this catoptron is 0 °, and right side light reflects and is directed to this CCD when the angle of this catoptron is 45 °.
7. Objectif photographique en 3 d according to claim 2, wherein this rotating disc has one or more hole.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060020806A KR100817881B1 (en) | 2006-03-06 | 2006-03-06 | Three dimensional photographing lens system |
| KR1020060020806 | 2006-03-06 | ||
| KR10-2006-0020806 | 2006-03-06 | ||
| KR10-2006-0032659 | 2006-04-11 | ||
| KR1020060032659A KR100786677B1 (en) | 2006-04-11 | 2006-04-11 | Stereo zoom lens system for stereophonic image photographing using non-lossy light path coupling device |
| KR1020060032659 | 2006-04-11 | ||
| PCT/KR2007/000579 WO2007102658A1 (en) | 2006-03-06 | 2007-02-02 | Objectif photographique en 3d |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101395519A CN101395519A (en) | 2009-03-25 |
| CN101395519B true CN101395519B (en) | 2010-07-14 |
Family
ID=38689194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780007711XA Expired - Fee Related CN101395519B (en) | 2006-03-06 | 2007-02-02 | 3-D photographing lens system |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100817881B1 (en) |
| CN (1) | CN101395519B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100949520B1 (en) * | 2007-12-18 | 2010-03-25 | (주)한국입체방송 | Stereo Zoom Lens for Three-dimensional Image Photographing and Camera System Thereof |
| CN102759802A (en) * | 2011-04-29 | 2012-10-31 | 浙江亿思达显示科技有限公司 | Three-dimensional lens and three-dimensional camera |
| WO2014028904A1 (en) * | 2012-08-17 | 2014-02-20 | Reald Inc. | Stereoscopic image capture |
| JP6280803B2 (en) * | 2014-04-24 | 2018-02-14 | オリンパス株式会社 | Stereo imaging optical system, stereo imaging device, and endoscope |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202456A (en) * | 1983-05-03 | 1984-11-16 | Toshio Masukane | Stereoscopic viewer |
| JPH05168047A (en) * | 1991-12-17 | 1993-07-02 | Sony Corp | Video camera |
| KR100615576B1 (en) * | 2003-02-06 | 2006-08-25 | 주식회사 고영테크놀러지 | Three-dimensional image measuring apparatus |
| KR20060022107A (en) * | 2004-09-06 | 2006-03-09 | 엠텍비젼 주식회사 | Device and method for taking stereoscopic image |
-
2006
- 2006-03-06 KR KR1020060020806A patent/KR100817881B1/en not_active IP Right Cessation
-
2007
- 2007-02-02 CN CN200780007711XA patent/CN101395519B/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| JP昭59-202456A 1984.11.16 |
| JP特开平5-168047A 1993.07.02 |
| JP特开平8-149518A 1996.06.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100817881B1 (en) | 2008-03-31 |
| CN101395519A (en) | 2009-03-25 |
| KR20070091398A (en) | 2007-09-11 |
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