CN1163060C - Image pick-up device - Google Patents
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- CN1163060C CN1163060C CNB011016973A CN01101697A CN1163060C CN 1163060 C CN1163060 C CN 1163060C CN B011016973 A CNB011016973 A CN B011016973A CN 01101697 A CN01101697 A CN 01101697A CN 1163060 C CN1163060 C CN 1163060C
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Abstract
The present invention relates to an image pick-up device which at least has an image pick-up element for configuring a photoelectric transducer into a matrix-shaped photoelectric transducer and an image formation device which is used for leading an object to be imaged to form into an image on a light receiving surface of the image pick-up element. The present invention also has an image formation device for leading at least two similar images of objects to be imaged to form an image and a signal processing device for leading at least one image of the objectes to be imaged from two images of the object to be imaged to form an image on different zones of the light receiving surface of the image pick-up element. Because the present invention can form a plurality of images of the object to be imaged on the surface of the image pick-up element by a plurality of imaging lens, the image pick-up device can realize a thin type.
Description
Technical field
The present invention relates to be used for camera system that the still frame of being photographed by the photography thing or cartoon picture are used.
Background technology
Use imaging device in devices such as ordinary camera or video cameras, this device uses the solid camera device of CCD, CMOS or artificial nethike embrane chip as camera device.Recently these devices are added in the independent device based on described such photography, also consideration can be loaded their or be connected to the imaging device in the so-called mobile information apparatus such as personal computer, portable data assistance and portable phone, the miniaturization of imaging device is in the occasion of considering these massaging device character, and these devices are extremely important factors.
Figure 14 is at for example special flat 10-227962 communique or the special pie graph of opening the solid-state image pickup device in the past that comes forth in the flat 10-293236 communique etc. opened.In Figure 14, the 101st, by the thing of photographing, the 102nd, be used for making by the imaging len of photography thing imaging on the camera device surface, the 104th, the camera device that photoactor is arranged with matrix shape, the picture 105 of quilt photography thing is by the imaging len imaging, photoactor be used for according to by by the photography thing be transformed into the signal of telecommunication as formed luminous intensity, the 104th, the lens barrel of lens is set.For the sake of simplicity, filter kinds such as low pass filter and infrared filter have been omitted herein.
Secondly, relevant action is described.By 101 reflections of quilt photography thing or from made picture 105 imagings of the thing of being photographed at photographic device 103 by imaging len 102 by the light of photography deposits yields.Photoelectric device 103 has disposed a plurality of photoactors, and be transformed into the signal of telecommunication that is equivalent to luminous intensity after detecting the luminous intensity that a photoactor arrives certain space segment, and from the allocation position information of these signals of telecommunication and photoactor on whole camera device by imaging can be by the picture 105 of photography thing in device regeneration such as for example display unit.
The characteristic of employed optical system is mainly represented by brightness and picture visual angle in imaging device.Can photograph when illuminometer is shown in aperture opened by the roughly standard of the brightness of photography thing, use F (focal length) numeral usually.Now, be a at the effective diameter of supposing lens, the focal length of lens is the occasion of f, and provides with F numeral=f/a.In addition, the picture visual angle represent by imaging device can photograph by the photography thing the zone, promptly camera device can the imageable zone of scioptics.For example, if the size on camera device surface is supposition diagonal b=1/2 inch (12.7mm), shape is if supposition is identical with common television image, the length ratio of vertical/horizontal is 3: 4, if the vertical length of supposition camera device is that (3/5) * b, horizontal length are (4/5) * b, the distance of lens and camera device is L (occasion in focus for infinity is substantially equal to f), so, and picture visual angle equation
Vertical picture visual angle=2 * tan-1 (((3/5) * b/2)/L) ... (1)
Horizontal picture visual angle=2 * tan-1 (((4/5) * b/2)/L) ... (2)
Provide.
Now, as the imaging len of the imaging device of standard, suppose F numeral=2.8, horizontal picture visual angle is 40 °, obtains f=13.96mm according to described equation, a=4.98mm.Therefore, the distance of lens and camera device, promptly the thickness of imaging device is about 14mm.On the other hand, by deciding by the picture element that in camera device, is configured to matrix shape (pixel) spacing of photography thing as resolution, occasion at described 1/2 inch camera device, if want to obtain VGA (640 pixels * 480 pixels: the image size on the camera device surface shown in Fig. 3) that horizontal picture is of a size of 10.16mm, so, pel spacing is about 15.9 microns.
Now, Figure 14 represents the figure of the resolution of imaging device in the past.In Figure 14, X is the position of imaging len, and Y is the optical axis of imaging len.Arrow presentation image, this image size are 200 pixels.For the sake of simplicity, if supposition only is conceived to the resolution of horizontal direction, and the size that horizontal component is arranged in the position from lens 698mm is the quilt photography thing of 159mm, so, because from the distance L=13.96mm of lens up to the camera device surface, therefore, the picture of the thing of being photographed is reduced into by 1/50th (13.96 ÷ 698) of the size of photography thing, and forms on the camera device surface.Therefore, the picture of the thing of being photographed becomes 3.18mm, because resolution reads the picture of 3.18mm by the camera device of 15.9 micron pitch, so can read with 200 pixels in the horizontal direction.
Because imaging device in the past is configured as described like that, if go for the brightness of standard, the image at picture visual angle, the distance between the light receiving surface of necessary increase imaging len and camera device, for this reason, camera device thickness is by thickening.In addition, at electronic installation that imaging device is in the past packed into, especially pack into and be called pocket telephone, field camera, occasion in the electronic installation of wrist-watch and portable data assistance, because the increase of the thickness of imaging device, therefore for will be encased in the electronic installation of these portable usefulness, want increased in size and couple together the big imaging device of also necessary carrying.
Summary of the invention
The present invention proposes for solving described problem, therefore, the purpose of this invention is to provide a kind of slim imaging device system with thin camera device, and the thin type electronic device and the portable electronic installation that can load the imaging device system are provided simultaneously.
At least possess the camera device that makes photoactor be configured to matrix shape and be used to make according to imaging device of the present invention system and be imaged on imaging device on the sensitive surface of camera device by the picture of photography thing, wherein, described imaging device forms the picture of 2 similar described things of being photographed at least on the zones of different of the sensitive surface of camera device, and also comprises the signal processing apparatus that constitutes the picture of the thing of being photographed from least 2 described pictures by the photography things.
In above-mentioned imaging device of the present invention system, imaging device constitutes with a plurality of lens series with same shape or refraction index profile, and is configured in the plane parallel with the light receiving surface of camera device.
Be preferably in according to imaging device of the present invention system and make the imaging len that constitutes each lens series form an integral body in the said structure.
In the said structure according to imaging device of the present invention system, preferably make the imaging len that constitutes lens series with having 1 * 10
-5/ ℃ below the material of coefficient of linear expansion form an integral body.
In the said structure according to imaging device of the present invention system, the imaging len that constitutes lens series is engaged with has 1 * 10
-5/ ℃ below the substrate of coefficient of linear expansion on.
Description of drawings
Fig. 1 (a) is the pie graph of the imaging device of embodiments of the invention 1, and Fig. 1 (b) is the imaging device system diagram;
Fig. 2 is illustrated in that size is the pie graph on the camera device surface of 640 pixels * 480 pixels in the embodiments of the invention 1;
Fig. 3 is the key diagram that is illustrated in the allocation position order of the photoactor in the embodiments of the invention 1;
Fig. 4 is the key diagram of the imaging device action of expression embodiments of the invention 1;
Fig. 5 is the pie graph according to the imaging device of embodiments of the invention 2;
Fig. 6 is the pie graph according to the imaging device of embodiments of the invention 3;
Fig. 7 is the pie graph according to the imaging device of embodiments of the invention 4;
Fig. 8 is the pie graph according to the imaging device of embodiments of the invention 4;
Fig. 9 is the pie graph according to the imaging device of embodiments of the invention 5;
Figure 10 is the pie graph according to the imaging device of embodiments of the invention 5;
Figure 11 is the pie graph according to the imaging device of embodiments of the invention 6;
Figure 12 is the pie graph according to the imaging device of embodiments of the invention 7;
Figure 13 is the pie graph of expression according to the imaging device of embodiments of the invention 8; And
Figure 14 is the figure of resolution of the imaging device of expression prior art.
Embodiment
Below explanation is about embodiments of the invention 1.Fig. 1 (a) is the pie graph according to the imaging device of embodiments of the invention 1, and Fig. 1 (b) is the system diagram of imaging device.In Fig. 1 (a), in order on single camera device surface, to make by the picture imaging of photography thing, the 1st, be set at a plurality of imaging lens in each lens barrel 4, on vertical direction and horizontal direction each 2,2 * 2=4 is arranged altogether.4 imaging lens 1 constitute 4 lens combinations respectively individually.
Y1 and Y2 represent the optical axis of imaging len 1.The 101st, by the thing of photographing, the 103rd, have the camera device that is configured to rectangular photoactor, the 2nd, on the light receiving surface of independent camera device 103,, can only see at the moment 2 in the drawings by the picture of 4 things of being photographed of imaging.The 61st, imaging device.
Imaging len 1 forms with inorganic translucent materials such as light-transmissive resin such as allyl resin, polycarbonate resin or poly-(chain) olefine resin of amorphism or glass as material, makes its maintenance lens effect with methods such as reaction-injection moulding, thermmohardening, photo-hardening, press molding or etchings by changing surface configuration.
Then, action is described.By being passed through 4 imaging len 1 imagings on the sensitive surface of camera device 103 respectively by the light of photographing thing 101 reflections or produce from quilt photography thing 101.Herein, 4 imaging lens 1 form similar by the picture 2 of photography thing respectively on the sensitive surface of camera device 103.For example dispose a plurality of photoactors such as CCD on the sensitive surface of camera device 103, a photoactor detects the luminous intensity that arrives certain space segment, and is transformed into the signal of telecommunication that is equivalent to luminous intensity.If with the allocation position information separated of these signals of telecommunication and photoactor, just can on independent whole camera device, regenerate by the picture 2 of 4 things of being photographed of imaging, again with their synthetic once more pictures that forms a quilt photography thing.
In Fig. 1 (b), the 61st, have the imaging device that forms the picture 2 of 4 quilt photography things at imaging len such shown in Fig. 1 (a) and on the sensitive surface of camera device 103, the 62nd, regenerate one by the signal configures conversion fraction of the picture of photography thing with 4 pictures 2 of cause by the photography thing.This signal configures conversion fraction 62 as well-known circuit by storage component parts such as frame memory, be used for camera device in the middle of read the control circuit of the signal of telecommunication, the control circuit etc. of reading the signal of telecommunication order is read in control from storage component part when constitutes.In this constituted, narration was about the formation of the picture of the thing of being photographed.Constitute described camera device sensitive surface a photoactor electrical signal intensity according to the allocation position of its photoactor order (for example from the left end that is configured in the photoactor on the uppermost horizontal line according to pixel n shown in Figure 2
1,1... n
X, 1, n
1,2..., n
X, 2... ..., n
1, y..., n
X, yOrder) read.The signal of telecommunication of these photoactors should be at signal configures conversion fraction write once memory device, read from storage component part once more, be shown in image display device 109 via image-processing system 108, but will be when writing and reading according to being reconfigured electrical signal data, promptly according to n by number, the position of the picture of photography thing toward this memory
1,1, n
(x/2)+1,1, n
1, (y/2)+1, n
(x/2)+1, (y/2)+1, n2,
1, n
(x/2)+2,1, n
2, (y/2)+1, n
(x/2)+2, (y/2)+1... n
X/2,1, n
X, 1, n
X/2, (y/2)+1, n
X, (y/2)+1, n
1,2, n
(x/2)+2, n
1, (y/2)+2, n
(x/2)+1, (y/2)+2... n
X/2, y/2, n
X, y/2, n
X/2, y, n
X, yOrder reconfigures each pixel like that, by calling over by this, is transformed into one and is delivered to image-processing system 108 behind the picture of photography thing, therefore mirrors one by the picture of photography thing at image display apparatus 109.According to above formation, it is a plurality of by the picture of photography thing that this imaging device system promptly uses a plurality of imaging lens to form on the sensitive surface of camera device, also has by the signal configures conversion fraction and can synthesize one by the feature of the picture of photography thing.
The characteristic of the optical system of using in imaging device is narrated, and they are mainly represented by brightness and picture visual angle.Brightness when aperture is opened, represent to photograph by the roughly standard of the brightness of photography thing, usually use the F numeral, if the camera device at supposition picture visual angle is of a size of diagonal b, its shape is the same with common television image, length ratio vertical and level is 3: 4, so, the picture visual angle that provides with (1) formula and (2) formula is also narrated.
Now, realize the imaging device of F numerals=2.8, horizontal picture visual angle=40 ° with a plurality of imaging lens.In the formation of Fig. 1, suppose that the number at vertical and horizontal direction imaging len is set to each 2, amount to 2 * 2=4, on the sensitive surface of camera device 103, form 4 by the picture of photography thing.Promptly be divided on vertical 2, horizontal 2 each sensitive surface one of each self-forming by the picture of photography thing.For this reason, owing to be to form one by the picture of photography thing on the sensitive surface of camera device of b/2 at diagonal, therefore, in order to obtain 40 ° at horizontal picture visual angle from described formula, and, will obtain a=2.49mm in order to obtain L=6.98mm, F numeral=2.8.Therefore, the distance of imaging len and camera device, promptly the thickness of imaging device is that 7mm and the imaging device in the past that constitutes with imaging len relatively become half, can realize slimming.
On the other hand, the situation of camera device in the past is the same, if consider by the resolution of the picture of photography thing, because a horizontal picture by the picture of photography thing is of a size of 5.08mm, if pel spacing is about 15.9 microns, then resolution is 320 * 240 just, and the resolution of the picture of the thing of being photographed is 1/2 of VGA.For example, if supposition has the quilt photography thing of horizontal component size for 159mm in the position from imaging len 698mm, so, because the distance L of the sensitive surface from the imaging len to the camera device=6.98, so, the picture by the photography thing that forms with imaging len is reduced to be become by 1/100th (6.98 ÷ 698) of the size of photography thing, and is formed on the sensitive surface of camera device.Therefore, owing to become 1.59mm by the picture of photography thing, and read the picture of 1.59mm by the camera device of 15.9 micron pitch, so resolution will can read with 100 pixels in the horizontal direction.Similarly, promptly use other imaging len to form by the picture of photography thing, resolution will read the picture of the same thing of being photographed separately in the horizontal direction with 100 pixels.
Relate to embodiments of the invention 14 imaging lens, camera device and with tied up to shown in Fig. 3 and Fig. 4 (a) and (b) by the pass of photography thing.Fig. 3 illustrates the camera device surface that pixel size is 640 pixels * 480 pixels.X
1～X
4Be the position of imaging len, Y
1～Y
4It is the optical axis of imaging len.The sectional drawing that expression is blocked with horizontal plane (the A-A line of Fig. 3) in Fig. 4 (a).If the distance between optical axes of the lens of supposition on 2 same horizontal planes is 2P, the distance from lens to the sensitive surface is L, the distance from quilt photography thing to lens is L
O, so, with being mapped from the optical axis Y of each imaging len by simple of two lens imagings by the center of the picture of photography thing
1, Y
2Skew only be P * (L/L
O).If this skew of supposition is for δ, with the picture of the thing of being photographed of two imaging len imagings become δ H=2 δ+2P apart from δ H, promptly
δH＝2P×(1+(L/L
O)) (3)
Only when δ H is the integral multiple of spacing of camera device, two pictures by the photography thing are just identical, people know, in occasion in addition, the camera device in two zones can be to being taken a sample by a little different piece of the picture of photography thing, and, therefore can realize and the equal resolution of gamma camera in the past by the short slim gamma camera of focal length owing to, read by the picture of photography thing with 200 pixels even in described example, also be equivalent in the horizontal direction by they are synthetic by electric installation.
Fig. 5 is the pie graph according to the imaging device of embodiments of the invention 2, below each embodiment represent the form that changes based on Fig. 1.In Fig. 5, the 21st, be contained in the imaging len in the lens barrel 104 in the whole formation also, on vertical and horizontal plane, possessing 2 respectively, amount to 2 * 2=4.4 imaging lens 21 constitute 4 lens series respectively individually.Herein, integrally formed 4 imaging lens 21 are formed by light-transmissive resins such as poly-(chain) olefine resins of allyl resin, polycarbonate resin or amorphism as material, and surface configuration is changed easily by methods such as reaction-injection moulding, thermmohardening, photo-hardening or etchings, keep lens effect thus.
In addition, as by integrally formed 4 imaging lens 21, on translucent resin substrates such as poly-(chain) olefine resin of allyl resin, polycarbonate resin or amorphism, by methods such as ion injection or ion-exchanges the refractive index of these materials is partly changed, also keep lens effect, imaging function is achieved.
The below relevant action of explanation.By being passed through in integrally formed 4 imaging len 21 imagings on the sensitive surface of independent camera device 103 on the translucent resin by the light of 101 reflections of photography thing or generation.Herein, each of integrally formed 4 imaging lens 21 forms the picture 2 of 4 similar things of being photographed respectively on camera device 103 sensitive surfaces, by they are synthetic again, can realize slimming with the comparison of imaging device in the past with same brightness, same picture visual angle and same resolution.
In addition, in the present embodiment, because as the formation of Fig. 1, independently in the lens barrel imaging len 1 needn't be set, integrally formed 4 imaging lens 21 of a slice can be set in the sensitive surface front of camera device 103, and therefore structure becomes simple, also reaches lightweight simultaneously.Have such advantage in addition, i.e. the interval of the sensitive surface of the focusing of necessity of each imaging len by only adjusting integrally formed 4 imaging lens 21 and camera device 103 just can solve, and the adjustment time also can shorten.
Embodiment 3
Fig. 6 is the pie graph according to the imaging device of embodiments of the invention 3.In Fig. 6, the 31st, in be contained in imaging len in the lens barrel, use roughly 1 * 10
-5Thereby/℃ below the material of coefficient of linear expansion wholely on vertical and horizontal plane respectively form 2 and amount to 4 and also constitute 4 lens combinations respectively individually.Herein, the material of integrally formed 4 imaging lens 31 for example forms with light transmission inorganic material such as glass, uses methods such as press molding or etching that surface configuration is changed, and therefore also can keep lens effect.
In addition, 4 imaging lens 31 of Xing Chenging use methods such as ion injection or ion-exchange partly to change the refractive index of these materials on light transmission inorganic material such as glass as a whole, therefore, also keep lens effect, can realize imaging function equally.
The following describes relevant action.By integrally formed 4 imaging len 31 imagings on the sensitive surface of camera device 103 of light by photographed thing 101 reflections or generation.Integrally formed 4 imaging lens 31 form the picture 2 of 4 similar things of being photographed respectively on the sensitive surface of camera device 103, by synthetic again, can realize slimming with the comparison of imaging device in the past with same brightness, same picture visual angle and same resolution.
In addition, in the present embodiment, owing to the formation that also needn't resemble Fig. 1, independently in the lens barrel 104 each imaging len 1 is being set, integrally formed many each imaging lens 31 of a slice can be set in the sensitive surface front of camera device 103, therefore, it is simple that structure becomes, and also can reach lightweight simultaneously.In addition, have such advantage, i.e. the interval that the sensitive surface of adjustment integrally formed 4 each imaging len 31 and camera device 103 is only passed through in the necessary focus coincidence of each imaging len just can solve, and can also shorten the adjustment time.
Herein, in the occasion of the operating position of considering imaging device, requirement has stability for the variation of variation, the especially ambient temperature of environment.For example, wish that 50 ℃ variation to the guarantee of work scope-5～45 of common employed imaging device ℃ is stable.The skew δ that relates to the optical axis of the center of elephant of imaging device of the present invention such as Fig. 4 (b) shadow thing being shot that is shown in and each lens is the occasion beyond the integral multiple of spacing of camera device, the camera device in two zones can be to being taken a sample by a little different part of the picture of photography thing, by they are synthetic, will become to be equivalent in above-mentioned example and read by the picture of photography thing with 200 pixels in the horizontal direction.The factor delta H that influences this resolution is determined by (3) formula.According to (3) formula, δ H is to almost not influence of the distance L between the sensitive surface of imaging len and camera device, but the spacing 2P to 4 imaging lens exists proportionate relationship, the same of the same distance of being separated by produce the occasion that is offset in variation, even also can be changed by its resolution of photography thing owing to ambient temperature.
In the present embodiment, owing to for example use light transmission inorganic material such as glass to form integrally formed 4 imaging lens 31, so its coefficient of linear expansion roughly is 1 * 10
-5/ ℃ below owing to be suppressed in the micron number magnitude, therefore do not rely on the image that ambient temperature can obtain specified resolution according to the variation of temperature amount of δ H.
Fig. 7 is the pie graph according to the imaging device of embodiments of the invention 4.In Fig. 7, the 41st, have 1 * 10
-5/ ℃ below the substrate of coefficient of linear expansion, in substrate 41, thereby 22 * 2=4 imaging len 1a altogether are set respectively in vertical and horizontal direction.Imaging len 1a constitutes 4 lens combinations respectively individually, use inorganic translucent material formation such as translucent resin, glass such as poly-(chain) olefine resin of allyl resin, polycarbonate resin or amorphism as material, by using methods such as reaction-injection moulding, thermmohardening, photo-hardening, press molding or etching that surface configuration is changed, can keep lens effect.
In addition, use inorganic translucent materials such as translucent resin such as poly-(chain) olefine resin of allyl resin, polycarbonate resin or amorphism or glass as imaging len 1a, partly change the refractive index of these materials with methods such as ion injection or ion-exchanges, also keep lens effect, can realize imaging function.
On the other hand, substrate 41 is to make of light transmission inorganic material such as for example glass, in substrate 41, uses thermo-compressed, bonding or 2 looks to be shaped and makes described imaging len 1a bonding and molding.In addition, also can have 1 * 10 as shown in Figure 8
-5/ ℃ below the substrate of coefficient of linear expansion on open 4 apertures that are used for installing imaging len 1, and lens 1 are installed thereon.
The following describes relevant action.By a plurality of imaging len 1a imaging on the sensitive surface of independent camera device 103 of being passed through by the light of 101 reflections of photography thing or generation on the substrate 41.Above imaging device can be realized slimming with the comparison of imaging device in the past with same brightness, same picture visual angle and same resolution.In addition, because a substrate 41 that engages 4 imaging len 1a or a slice substrate 42 that 4 imaging lens 1 are installed can only be set, therefore has the advantage that also can reach simple structure and lightweight and can also shorten the adjustment time of focus coincidence.
In addition, in the present embodiment, because use coefficient of linear expansion roughly 1 * 10
-5/ ℃ below, light transmission inorganic material such as for example glass forms substrate 41 that has engaged 4 suitable imaging len 1a of precision or the substrate 42 that 4 imaging lens 1 have been installed, be controlled in the micron number magnitude according to variation of temperature amount such shown in Fig. 4 (b) by the skew δ H of the optical axis of the center of the picture of photography thing and each lens, therefore, guarantee of work scope-5～45 ℃ scope at imaging device does not rely on the ambient temperature that changes about 50 ℃, can stably obtain the image of specified resolution.
Embodiment 5
Fig. 9 is the pie graph according to the imaging device of embodiments of the invention 5.In Fig. 9,51 be to use allyl resin, polycarbonate resin or amorphism poly-(chain) thus translucent resins such as olefine resin carry out methods such as reaction-injection moulding, thermmohardening, photo-hardening or etching to be changed surface configuration and has in that vertical and horizontal direction is whole respectively and formed 2 thin plates that amount to 4 imaging lens 52, the 41st, relatively have very strong rigidity and have 1 * 10 with these thin plates
-5/ ℃ below the substrate of coefficient of linear expansion.Have the thin plate 51 of these a plurality of imaging lens 52 and have 1 * 10
-5/ ℃ below the substrate 41 of coefficient of linear expansion be engaged, and be collected in the lens barrel 104.
In addition, as shown in Figure 10, use inorganic translucent resins such as translucent resin such as poly-(chain) olefine resin of allyl resin, polycarbonate resin or amorphism or glass, by these materials use ions to inject and method such as ion-exchange make vertical have respectively with horizontal direction keep lens effect after 2 thereby the thin plate 51a of 4 imaging len 52a partly changes refractive index altogether, and this thin plate 51a joined to have than the stronger rigidity of this thin plate 51a and have 1 * 10
-5/ ℃ below the substrate 41 of coefficient of linear expansion on, also can obtain effect same.
The below relevant action of explanation.By imaging len 52, the 52a imaging on the sensitive surface of independent camera device 103 passed through by the light of 101 reflections of photography thing or generation on the substrate 41.This imaging device can be realized slimming with the imaging device comparison in the past with same brightness, same picture visual angle and same resolution.
In this embodiment, because 4 imaging lens 52,52a constitute lens combination respectively individually, and these imaging lens can integration form, and therefore have the correct easily advantage that forms the spacing between imaging len.
And, identical with described embodiment, can realize slimming with imaging device comparison in the past with same brightness, same picture visual angle and same resolution.In addition, engaged the thin plate 51 with 4 imaging lens, the substrate 41 of 51a, can reach simple structure, lightweight, and can shorten the advantage of the adjustment time of focus coincidence so have also because can be provided with.
In addition, in present embodiment 5 because will have integrally formed 4 imaging lens 52, the thin plate 51 of 52a, 51a joins to has roughly 1 * 10
-5/ ℃ below the substrate 41 of coefficient of linear expansion, make this substrate have rigidity, so in guarantee of work scope-5～45 ℃ scope of imaging device, even to changing the ambient temperature about 50 ℃, lenticular spacing does not change, and can stably obtain the image of specified resolution yet.
Imaging len in above embodiment has illustrated the situation about 4, but in the present invention, is not limited to 4, can be suitable for a plurality of imaging lens.
Embodiment 6
Lens combination in above embodiment is made of independent imaging len, but the lens combination in the present embodiment is made of 4 imaging lens (group lens) respectively.Figure 11 is the pie graph of the imaging device in the present embodiment 6, corresponding to embodiment shown in Figure 11.In Figure 11, owing to make by picture imaging on the sensitive surface of independent camera device of photography thing, therefore 91 group lens of forming by 4 imaging lens in the lens barrel 104 that is arranged on separately, thus and constitute 24 lens combinations altogether respectively in vertical and horizontal direction.
The below relevant action of explanation.By being passed through 4 imaging lens 91 (group lens) imaging on the sensitive surface of camera device 103 respectively by the light of photographing thing 101 reflections or produce from quilt photography thing 101.Form the picture 2 of 4 similar things of being photographed herein, on the sensitive surface of each comfortable camera device 103 of 4 imaging lens (group lens).On the sensitive surface of camera device 103, dispose for example a plurality of fine light detecting devices such as CCD, be transformed into the signal of telecommunication that is equivalent to luminous intensity after detecting the luminous intensity that a light detecting device arrives certain space segment.
If know the positional information of the configuration of these signals of telecommunication and light detecting device, just can use the photograph picture 2 of things of 4 quilts of the method regeneration in described embodiment, narrated imaging in whole independent camera device, again with them once more in conjunction with forming one by the picture of photography thing, compare with imaging device in the past and can realize slimming with same brightness, same picture visual angle and same rate respectively.
Embodiment 7
Figure 12 illustrates the imaging device according to embodiment 7, and corresponding to the form of Fig. 5 and Fig. 6.In Figure 12,91a is 4 imaging lens (group lens) that are set in the lens barrel 104, constitutes lens series.This group lens 91a also is located at optical axis direction, forms an integral body with 3 imaging lens 91, thus simultaneously by on vertical and horizontal plane, form respectively 2 altogether 4 imaging lens 92 constitute.Integrally formed imaging len 92 is as material, form by translucent resins such as poly-(chain) olefine resins of allyl resin, polycarbonate resin or amorphism, and can use methods such as spraying formation, thermmohardening, photo-hardening or etching that surface configuration is changed, by the variation realization lens effect of such surface configuration.
In addition, 4 imaging lens 92 of Xing Chenging as a whole, on translucent resin substrates such as poly-(chain) olefine resin of allyl resin, polycarbonate resin or amorphism, use methods such as ion injection or ion-exchange, by partly changing these material refractive indexes, also keep lens effect, and can realize same lens function.
The below relevant action of explanation.By by reflection of photography thing 101 or the light that produces, for example, by having the group lens of varifocal function etc., by in integrally formed 4 imaging len 92 imagings on the sensitive surface of independent camera device 103 on the translucent resin.Herein, form on the sensitive surface of integrally formed 4 imaging len 92 each comfortable camera devices 103 4 similar by the picture 2 of photography things, and can use and the same quadrat method that in described embodiment, illustrated synthetic again.
If constitute, because the whole imaging len 92 that forms among the formation group lens 91a of back, and form 4, simple structure, in light weight and imaging device that adjust easily that therefore can realization group lens according to this.
In addition, for example, if use light transmission inorganic material such as glass to form imaging len 92, so, its coefficient of linear expansion is roughly 1 * 10
-5/ ℃ below, and because the variation of temperature amount of δ H is controlled in the micron number magnitude, therefore can rely on ambient temperature and obtain the image of specified resolution.
Embodiment 8
Figure 13 is the system diagram according to the imaging device of embodiments of the invention 8, and details illustrates as use the system that possesses the imaging device of the camera device of the arithmetic unit between a plurality of photoactors in camera device at the camera device shown in Fig. 1 (a).In Figure 13, the 61st, the imaging device that constitutes by the camera device of the arithmetic unit between a plurality of photoactors that possess in camera device, the 72nd, possess the camera device of the arithmetic unit between a plurality of photoactors in camera device.Possess in the imaging device of camera device 72 of the arithmetic unit between a plurality of photoactors in camera device in use, owing to possess function at the signal configures conversion fraction 62 shown in Fig. 1 (a), therefore can not rely on the allocation position of its photoactor, by the arithmetic unit between a plurality of photoactors the electrical signal intensity of photoactor is transformed into one and is directly delivered to image-processing system 108 behind the picture of photography thing, and can in image display apparatus 109, mirror one by the picture of photography thing.
Use possesses the imaging device of the camera device of the arithmetic unit between a plurality of photoactors in above camera device as camera device, it is a plurality of by the picture of photography thing promptly to use a plurality of imaging lens to form on camera device, owing in camera device, can carry out the signal configures conversion, therefore needn't just can realize low, the simply constructed imaging device of cost system by another kind of way signalization configuration conversion fraction.
In addition, possess the camera device of amplifying device, in image-processing system 108, needn't be provided for the amplifier of amplification signal, can realize low, the simply constructed imaging device of cost system by using photoactor in each camera device.
Then, illustrate about being loaded in situation in the electronic installation at the imaging device shown in any one form of described embodiment 1～6.
Below, the situation that is suitable for notebook type PC is described.Imaging device possesses the well-known A/D interface circuit that shows usefulness as image.This circuit is arranged on the top central authorities all around of the display unit of notebook type PC, but also can be arranged on any position all around of display unit, the position is set does not limit.
In this occasion, such as described, because the thin thickness of imaging device, so display unit can attenuation, and perhaps owing to also needn't make a part keep thickness in order to be provided with, so notebook type PC can attenuation.In addition, do not sacrifice whole thinness yet, can realize the notebook PC that approaches in the occasion that formation can be loaded and unloaded.Moreover, be used for a plurality of pictures by the photography things are formed one by the signal processing apparatus of the picture of photography thing because possess, therefore in notebook PC, only be provided with and in the past the identical image processing circuit of imaging device, and can show normal image.
Below, the situation about the top of the display unit that is loaded in pocket telephone is described.In this occasion, the position of imaging device is not limited thereto.
Such as described, because the thin thickness of imaging device, so the thickness of pocket telephone can attenuation, in addition because needn't partly keep thickness in order to be provided with also, therefore can make the thickness attenuation of whole pocket telephone.In addition, do not sacrifice whole thickness constituting removably occasion yet, can realize the pocket telephone of thin thickness.And, be used to make a plurality of pictures to form one because possess by the signal processing apparatus of the picture of photography thing by the photography things, therefore only be provided with in the past the identical image processing circuit of imaging device once the side and can show normal image at pocket telephone.
Below, illustrate about imaging device being loaded in the situation in the field camera.In this occasion as previously mentioned, because imaging device approaches, so also attenuation of field camera, perhaps because also needn't partly keep thickness for setting, so can make whole field camera attenuation, also can realize card-like field camera.And, be used to make 4 pictures to form one because possess by the signal circuit device of the picture of photography thing by the photography things, therefore only be provided with in the past the identical image processing circuit of imaging device once the side and can show normal image at field camera.
Below, illustrate about making imaging device be applicable to the occasion of portable data assistance.Moreover, this occasion imaging device that the position is set is also unrestricted.
As previously mentioned,,,, therefore can make whole portable data assistance attenuation, also can be collected in the chest pocket certainly perhaps because also needn't partly keep thickness for setting so portable data assistance can attenuation because imaging device is thin.And, be used to make a plurality of pictures to form one because possess by the signal processing apparatus of the picture of photography thing by the photography things, therefore only be provided with in the past the identical image-processing system of imaging device once the side and can show normal image at portable data assistance.
Below, illustrate about imaging device being loaded in the situation in the wrist-watch.Moreover, this occasion imaging device that the position is set is also unrestricted.
As previously mentioned,,,, therefore can make whole wrist-watch attenuation, the good sense of wearing is arranged perhaps because needn't partly keep thickness in order to be provided with also so can make the wrist-watch attenuation because imaging device is thin.And, be used to make a plurality of pictures to form one because possess by the picture of photography thing by the photography things, therefore, only be provided with in the past the identical image processing circuit of imaging device and just can show normal image.
As if according to as the of the present invention the 1st imaging device that constitutes,, therefore can realize slim imaging device because accomplished to form on the camera device surface picture of a plurality of things of being photographed with a plurality of imaging lens.
In addition, if according to imaging device as the 2nd formation of the present invention, because constitute the 1st imaging device that constitutes with a plurality of lens series, and be configured in the plane parallel, therefore can realize slim imaging device with the sensitive surface of camera device with same shape or refraction index profile.
In addition, if according to the imaging device that constitutes as the present invention the 3rd, because therefore the whole imaging len that constitutes lens series that formed can realize simple structure, in light weight, and the imaging device of adjusting easily.
In addition, if, have 1 * 10 because use according to as the of the present invention the 4th imaging device that constitutes
-5/ ℃ below the material monolithic of coefficient of linear expansion formed the imaging len that constitutes the lens series, therefore can realize simple structure, in light weight and adjust and variation of ambient temperature is not changed the imaging device of resolution easily.
In addition, if according to the imaging device that constitutes as the present invention the 5th, because have 1 * 10
-5/ ℃ below the substrate of coefficient of linear expansion on formed the imaging len that constitutes the lens series, therefore can realize simple structure, in light weight and adjust, and variation of ambient temperature is not changed the imaging device of resolution easily.
Claims (5)
1. imaging device system, it is characterized in that, at least possess the camera device that makes photoactor be configured to matrix shape and be used to make and be imaged on imaging device on the sensitive surface of camera device by the picture of photography thing, wherein, described imaging device forms the picture of 2 similar described things of being photographed at least on the zones of different of the sensitive surface of camera device, and also comprises the signal processing apparatus that constitutes the picture of the thing of being photographed from least 2 described pictures by the photography things.
2. imaging device according to claim 1 system is characterized in that described imaging device is made of a plurality of lens series with same shape or refraction index profile, and is configured in the plane parallel with the sensitive surface of camera device.
3. imaging device according to claim 2 system is characterized in that the imaging len that constitutes described each lens series is formed by integral body.
4. imaging device according to claim 2 system is characterized in that the imaging len that constitutes described lens series is by having 1 * 10
-5/ ℃ below the material monolithic of coefficient of linear expansion form.
5. imaging device according to claim 2 system is characterized in that the imaging len that constitutes described lens series is engaged with has 1 * 10
-5/ ℃ below the substrate of coefficient of linear expansion on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011016973A CN1163060C (en) | 2001-01-15 | 2001-01-15 | Image pick-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011016973A CN1163060C (en) | 2001-01-15 | 2001-01-15 | Image pick-up device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1366424A CN1366424A (en) | 2002-08-28 |
| CN1163060C true CN1163060C (en) | 2004-08-18 |
Family
ID=4652178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011016973A Expired - Fee Related CN1163060C (en) | 2001-01-15 | 2001-01-15 | Image pick-up device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163060C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2858342A4 (en) * | 2012-05-28 | 2016-04-06 | Nikon Corp | Imaging device |
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2001
- 2001-01-15 CN CNB011016973A patent/CN1163060C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1366424A (en) | 2002-08-28 |
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