CN105791706A - Photographing device and method - Google Patents
Photographing device and method Download PDFInfo
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- CN105791706A CN105791706A CN201410816531.8A CN201410816531A CN105791706A CN 105791706 A CN105791706 A CN 105791706A CN 201410816531 A CN201410816531 A CN 201410816531A CN 105791706 A CN105791706 A CN 105791706A
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Abstract
The invention provides a photographing device. The photographing device is used for outputting a film and comprises a light sensing unit, the light sensing unit comprises a first group of light sensing components and a second group of light sensing components, the first group of light sensing components starts to expose at a first time point and outputs images obtained by exposure at a second time point, the second group of light sensing components outputs the images obtained by exposure between the first time point and the second time point after exposure, and the images form the film. The first group of light sensing components and the second group of light sensing components respectively exposes and outputs the images in sequence, so that an image updating rate can be maintained while improving the exposure time.
Description
Technical field
The invention relates to a kind of photographic attachment, particularly relate to a kind of photographic attachment and method thereof improving time of exposure and maintaining picture update rate.
Background technology
The photosensory assembly of existing camera, as improved exposure in the place of dark, usually need to sacrifice picture update rate, for example, when picture update rate is 30 per second, time of exposure then can not be also longer than 1/30 second, because exposure must carry out between the time that twice exports picture.When if desired improving exposure, it is necessary to longer exposure times, such picture update rate just must decline therewith, for instance 15 per second, and can not record captured action swimmingly.Therefore, how while improving time of exposure and picture update rate can be maintained, a theme being worth research is just become.
Summary of the invention
Therefore, the purpose of the present invention, not only providing a kind of while improving time of exposure but also the photographic attachment of picture update rate can be maintained.
Therefore, another object of the present invention, not only providing a kind of while improving time of exposure but also the method for imaging of picture update rate can be maintained.
Then, photographic attachment of the present invention, it is used for exporting a film, comprises:
One photosensitive unit, including one first group of photosensory assembly and one second group of photosensory assembly, this first group of photosensory assembly starts exposure at a very first time point, image at one second time point output exposure gained, this second group of photosensory assembly exports the image of exposure gained after exposure between this very first time point and this second time point, and such image forms this film.
Preferably, this film is exported with a picture update rate, definition maximum permissible exposure time span is the time difference starting to be exposed to the image of output exposure gained, wherein, this first group of photosensory assembly and this second group of photosensory assembly have identical maximum permissible exposure time span, and both start the interval of exposure and export the interval of the image of exposure gained equal to both and be equal to the inverse of this picture update rate.
Preferably, wherein, this photosensitive unit includes being divided into this first group of photosensory assembly binary and this second group of photosensory assembly, and this second group of photosensory assembly image output to two times of interval of this first group of photosensory assembly image output equal to this maximum permissible exposure time span.
Preferably, wherein, this second group of photosensory assembly one the 3rd time point before this very first time puts starts exposure, and the image of one the 4th time point output exposure gained between this very first time point and this second time point, 3rd time point and the interval system of this very first time point are the aforementioned interval starting exposure, and the 4th time point and the interval system of this second time point are the interval of the aforementioned image exporting exposure gained.
It is preferred that wherein, this second group of photosensory assembly starts again at exposure after the image of output exposure gained, and this first group of photosensory assembly starts again at exposure after the image of output exposure gained.
It is preferred that wherein, this photosensitive unit includes substantially always organizing number according to one and is divided into this first group of photosensory assembly of many deciles, this second group of photosensory assembly and other least one set photosensory assembly.
Preferably, wherein, this second group of photosensory assembly and other least one set photosensory assembly are after this first group of photosensory assembly exposure, sequentially with the inverse of this picture update rate for interval even time interval ground image output so that this first group of photosensory assembly be the image of output exposure gained after this total group number is multiplied by the time span of this image output interval.
Preferably, wherein, it is the maximum permissible exposure time span that this total group number is multiplied by image output interval that this first group of photosensory assembly has time span, and this second group of photosensory assembly and other least one set photosensory assembly also have identical maximum permissible exposure time span, each time point organizing image output is each group of time point starting exposure toward the time point pushing back this identical maximum permissible exposure time span.
Preferably, also include the processor of an image receiving each group of photosensory assembly exposure gained respectively, wherein, this processor utilizes the image of this group photosensory assembly received to calculate the image supplying the part being different from this group photosensory assembly position respectively in the way of slotting point processing, and sequentially exports the image after such calculating and form this film.
Then, method for imaging of the present invention, a photographic attachment described above perform to export a film, this method for imaging comprises:
This first group of photosensory assembly starts exposure at a very first time point；
This second group of photosensory assembly in exposure after this very first time put after one the 4th time point output exposure gained image；And
The image of this first group of photosensory assembly the second time point output exposure gained after the 4th time point, such image forms this film.
Preferably, wherein, this photographic attachment exports this film with a picture update rate, definition maximum permissible exposure time span is the time difference starting to be exposed to the image of output exposure gained, wherein, this first group of photosensory assembly and this second group of photosensory assembly have identical maximum permissible exposure time span, and both start the interval of exposure and export the interval of the image of exposure gained equal to both and be equal to the inverse of this picture update rate.
Preferably, wherein, this photosensitive unit is divided into this first group of photosensory assembly binary and this second group of photosensory assembly, and from two times of the interval of this second group of photosensory assembly image output to this first group of photosensory assembly image output equal to this maximum permissible exposure time span.
It is preferred that wherein, this processor utilizes the image of this group photosensory assembly received to calculate the image supplying the part being different from this group photosensory assembly position respectively in the way of slotting point processing, and sequentially exports the image after such calculating and form this film.
For another viewpoint, photographic attachment of the present invention, for exporting a film, comprise: a photosensitive unit, including one first group of photosensory assembly and one second group of photosensory assembly, this first group of photosensory assembly starts exposure at a very first time point, at the image of one second time point output exposure gained, this second group of photosensory assembly starts exposure at one the 4th time point, at the image of one the 5th time point output exposure gained, such image forms this film, and this very first time put before the 4th time point.
It is preferred that wherein, the inverse being spaced apart this picture update rate of this very first time point and the 4th time point.
It is preferred that wherein, this photosensitive unit reciprocal two times that the maximum permissible exposure time is this picture update rate of this first group of photosensory assembly and this second group of photosensory assembly being divided into are drawn.
It is preferred that wherein, this photosensitive unit includes substantially always organizing number according to one and is divided into this first group of photosensory assembly of many deciles, this second group of photosensory assembly and other least one set photosensory assembly.
It is preferred that wherein, this second group of photosensory assembly and other least one set photosensory assembly after this first group of photosensory assembly exposure, sequentially with the inverse of this picture update rate be interval even time interval start exposure.
It is preferred that wherein, this is respectively organized photosensory assembly and has maximum permissible exposure time span, and this maximum permissible exposure time span is the inverse that this total group number respectively organizing photosensory assembly is multiplied by this picture update rate.
Effect of the present invention is in that: through this photosensitive unit is divided into the photosensory assembly of at least two groups and each group of time of exposure is staggered, image output respectively, can while improving time of exposure and picture update rate can be maintained.
[accompanying drawing explanation]
Other the feature of the present invention and effect, clearly will present in describing in detail with reference to graphic preferred embodiment, wherein:
Fig. 1 is a block chart, and a preferred embodiment of photographic attachment of the present invention is described；
Fig. 2 is a floor map, and first group of photosensory assembly of this preferred embodiment and the arrangement mode of second group of photosensory assembly are described；
Fig. 3 is a floor map, and first group of photosensory assembly of this preferred embodiment and another arrangement mode of second group of photosensory assembly are described；
Fig. 4 is a time point schematic diagram, and this preferred embodiment is described；
Fig. 5 is a period schematic diagram, and this preferred embodiment is described；
Fig. 6 is a floor map, and the arrangement mode of first group of photosensory assembly of this preferred embodiment, second group of photosensory assembly and other group of photosensory assembly is described；
Fig. 7 is a time point schematic diagram, and this preferred embodiment is described；And
Fig. 8 is a flow chart, and this preferred embodiment is described.
[detailed description of the invention]
Consulting Fig. 1 to Fig. 3, the preferred embodiment of photographic attachment 1 of the present invention comprises photosensitive unit 11 and the processor 12 being connected.
This photosensitive unit 11 includes one first group of photosensory assembly 111 and one second group of photosensory assembly 112, interlock and arrange equably, the mode of its arrangement or each quantity non-invention emphasis organizing assembly, can be staggered with row for unit as Fig. 2, odd number is classified as first group of photosensory assembly 111 (in Fig. 2 white lattice), and even number is classified as second group of photosensory assembly 112 (drawing the lattice of oblique line in Fig. 2)；It can also be each photosensory assembly checkerboard type symmetric arrays as Fig. 3, make each photosensory assembly (in Fig. 3 white lattice) in first group of photosensory assembly 111, all adjacent with the photosensory assembly of second group of photosensory assembly 112 (drawing the lattice of oblique line in Fig. 3) up and down, vice versa, i.e. each photosensory assembly in second group of photosensory assembly 112 is all adjacent with the photosensory assembly of first group of photosensory assembly 111 up and down.Itself it is important that, as far as possible make the photosensory assembly of two groups all be uniformly distributed in this photosensitive unit 11 so that each group when individually pick-up image as be described hereinafter, the image of gained will not difference too big.
This photographic attachment 1 can switch between the high exposure mode of a general modfel and, and when general modfel, photosensitive unit 11 is not grouped exposure and with a picture update rate f image output to this processor 12, identical with the function mode of general camera.
nullConsult Fig. 1 and Fig. 4，When using this high exposure mode，The present embodiment is still with identical picture update rate f image output，Its mode is that this first group of photosensory assembly 111 starts exposure at a very first time point t11，At the image of one second time point t12 output exposure gained to this processor 12，But this second group of photosensory assembly 112 of one the 4th time point t22 putting the center time point of t11 and the second time point t12 in the very first time also exports the image exposing gained to this processor 12，Make two groups of photosensory assemblies 111、The interval Δ t of the image of 112 output exposure gained is equal to the 1/f reciprocal of this picture update rate，But respective maximum permissible exposure time span but can be two times of 2 Δ t of interval of image output，Wherein this maximum permissible exposure time span is defined as starting to be exposed to the time difference exporting the image exposing gained.
Further illustrate, this second group of photosensory assembly 112 is that one the 3rd time point t21 of Δ t starts exposure before this very first time puts t11, exposing the image of gained in the 4th time point t22 output and start simultaneously at exposure once, then after this second time point t12, one the 5th time point t23 of Δ t exports the image of exposure gained again.So that this first group of photosensory assembly 111 and this second group of photosensory assembly 112 have identical maximum permissible exposure time span 2 Δ t, and both start the interval (t21 to t11 or t11 to t22) of exposure and export the interval (t22 to t12 or t12 to t23) of the image of exposure gained equal to both and be equal to the inverse (1/f) of this picture update rate.Specifically, namely second group of photosensory assembly 112 starts exposure (t21) to this first group of photosensory assembly 111 and starts the interval of exposure (t11) and to the interval of the image (t12) of this first group of photosensory assembly 111 output exposure gained and be equal to the inverse (1/f) of this picture update rate equal to the image (t22) of this second group of photosensory assembly 112 output exposure gained, it is possible to formula is expressed as t11-t21=Δ t=t12-t22=1/f；Same another aspect, this first group of photosensory assembly 111 starts exposure (t11) to second group of photosensory assembly 112 and starts again at the interval of exposure (t22) image (t12) equal to this first group of photosensory assembly 111 output exposure gained and again export the interval of the image (t23) exposing gained to this second group of photosensory assembly 112 and be equal to the inverse (1/f) of this picture update rate, it is possible to formula is expressed as t22-t11=Δ t=t23-t12=1/f.
Consult Fig. 5, further the action time of each action is specifically described, top represents each period of this first group of photosensory assembly 111, lower section represents each period of this second group of photosensory assembly 112, wherein, the period being exposed represents with dotted region, the period of image output represents with hatched example areas, not necessarily can be equal to maximum permissible exposure time span due to real exposure time length, therefore represent each time the gap of real exposure time length and the maximum permissible exposure time span being exposed with white space.As can be seen from Figure 5, two groups of photosensory assemblies 111,112 are taked sequentially each to be exposed respectively and export, the maximum permissible exposure time span that can make each group of photosensory assembly 111,112 is promoted to the twice of the interval of this photosensitive unit 11 image output, for example, when picture update rate is 30 per second, time of exposure is likely to arrive 1/15 second, and also long than 1/30 second, while reaching raising time of exposure and can maintain the purpose of picture update rate.After each completing exposure once, this second group of photosensory assembly 112 starts again at exposure after the image of the 4th time point t22 output exposure gained, and this first group of photosensory assembly 111 starts again at exposure after the image of this second time point t12 output exposure gained.
Supplementary notes be, the length of the period (hatched example areas) of image output is ofer short duration comparatively speaking, in Fig. 5, day part length is not necessarily drawn to scale, represent the time point of image output on the graphical representation with period midpoint, in the present embodiment, the calculating of time span also mode to ignore the length of the period of image output illustrates.
It is for two groups of photosensory assemblies in the present embodiment, but it is not limited, three groups or above photosensory assembly can also be changed into, implying that this photosensitive unit 11 includes this first group of photosensory assembly 111, this second group of photosensory assembly 112 and other least one set photosensory assembly, the maximum permissible exposure time span of each group photosensory assembly is all identical.Wherein, when total group number is three groups, above-mentioned least one set refers to one group, when total group number be n group and n more than three, above-mentioned least one set refers to many groups (i.e. n-2 groups).
Consult Fig. 6, when total group number is three groups, a kind of arrangement mode of photosensory assembly can be as shown in Figure 6, each horizontally-arranged this first group of photosensory assembly 111 (being labeled with numeral 1 in grid), this second group of photosensory assembly 112 (being labeled with numeral 2 in grid) and other group of photosensory assembly 113 (being labeled with numeral 3 in grid) of being sequentially from left to right makes cycle arrangement, and each tandem is from top to bottom also sequentially this first group of photosensory assembly 111, this second group of photosensory assembly 112 and other group of photosensory assembly 113 and makes cycle arrangement.Mode that can also be similar when more groups of numbers sequentially makes cycle arrangement.
This second group of photosensory assembly 112 except this first group of photosensory assembly 111 and other least one set photosensory assembly after this first group of photosensory assembly 111 starts this very first time point t11 of exposure, before this second time point t12 of image output the image of even time interval ground sequentially output exposure gained to this processor 12, such then maximum permissible exposure time span can be three times of the interval of image output or more than, always have how much organize photosensory assembly, just can reach how many times.
By general modfel, it is distinguished into two groups of photosensory assemblies, and the operational relationship being distinguished into three groups of photosensory assemblies illustrates in the lump such as Fig. 7, maintaining same frame turnover rate f, namely photosensitive unit 11 is when identical image output interval Δ t, and each group photosensory assembly maximum permissible exposure time span can be changed to 2 Δ t or 3 Δ t.It should be noted that, in order to know the time point illustrated in the middle of different total enforcement aspect organizing number, in Fig. 7 and in following description, total group number is that the time point numbering of two is with " t2_ " beginning, total group number is that the time point numbering of three is with " t3_ " beginning, the time point numbering that total group number is n starts with " tn_ ", in order to distinguishing.
Photosensitive unit 11 is being distinguished in the enforcement aspect of three groups of photosensory assemblies, after this first group of photosensory assembly 111 starts this very first time point t3_11 of exposure, before this second time point t3_12 of image output, this second group of photosensory assembly 112 and other group of photosensory assembly 113 respectively at time point t3_22, t3_32 with interval even time interval ground image output that time span is Δ t.Owing to this first group of photosensory assembly 111 is during starting to be exposed to image output, still there are this second group of photosensory assembly 112 and other group of photosensory assembly 113 sequentially image output, the maximum permissible exposure time span making each group of photosensory assembly 111,112,113 is all extended for three times of 3 Δ t, but possesses identical picture update rate f.
In like manner, photosensitive unit 11 is being distinguished in the enforcement aspect of n group photosensory assembly, second group, the 3rd group ..., n-th group photosensory assembly respectively can time point tn_22, tn_32 ..., tn_n2 (not shown) with time span be Δ t interval even time interval ground image output, and start simultaneously at exposure next time, the wherein Δ t inverse equal to picture update rate f.In this case, even if this photosensitive unit 11 is generally speaking with picture update rate f image output, first group of photosensory assembly 111 is but just need to carry out image output once after have passed through the interval (representing with n Δ t below) of n times of Δ t after exposure, therefore there is the maximum permissible exposure time span that time span is n Δ t, and other group also can have identical maximum permissible exposure time span n Δ t, each time point tn_22 organizing image output, tn_32, ..., tn_n2 (not shown) is each group of this time point starting to expose toward the time point pushing back this identical maximum permissible exposure time span n Δ t.
In other words, when this photosensitive unit 11 always being organized according to one number n and substantially dividing into n decile, this photosensitive unit 11 includes other group photosensory assembly of this first group of photosensory assembly 111, this second group of photosensory assembly 112 and n-2 group, make each group of photosensory assembly have identical maximum permissible exposure time span, and the interval of the image of photosensitive unit 11 output exposure gained is multiplied by n times equal to each group of photosensory assembly maximum permissible exposure time span.
It should be noted that, mode according to photosensory assembly distribution, the Aspect Ratio of image output may from originally different, for Fig. 2, this first group of photosensory assembly 111 can export the image of 5 × 3 dimensions, and image is 5 × 5 originally, therefore this processor 12 utilizes the image of the one of which photosensory assembly received to calculate the image of the picture element (in Fig. 2 the part of the 2nd, 4 row) supplying the part being different from this group photosensory assembly position in the way of slotting point processing in the present embodiment, maintains resolution.But it is not limited so that slotting point processing must be done, can also be that design makes the mode of each group of photosensory assembly distribution maintain the ratio of image originally, such as long and wide is all that each two photosensory assembly just takes one and is included into first group of photosensory assembly 111, and unnecessary photosensory assembly is then given up and do not taken.So will reduce resolution, but still maintain the ratio of image.
Consulting Fig. 1,5,8, in summary, photographic attachment 1 of the present invention performs a method for imaging, and this method for imaging comprises the steps of
Step S1-this second group of photosensory assembly 112 the 3rd time point t21 before the very first time puts t11 starts exposure.
Step S2-this first group of photosensory assembly 111 is put t11 in the very first time and is started exposure.
The 4th time point t22 output that step S3-this second group of photosensory assembly 112 was put after t11 in the very first time exposes the image of gained to this processor 12, subsequently enters step S4, and this processor 12 performs step S5 simultaneously.
The image of step S4-this first group of photosensory assembly 111 second time point t12 output exposure gained after the 4th time point t22 is to this processor 12, and then this processor 12 performs step S5.
Step S5-this processor 12 receives this first group of photosensory assembly 111 respectively and this second group of photosensory assembly 112 exposes the image of gained, and utilize the image of the one of which photosensory assembly received to calculate the image supplying the part being different from this group photosensory assembly position respectively in the way of slotting point processing, and sequentially export the image after such calculating and form this film.
More than it is the mode that each group of photosensory assembly carries out the period running of exposure once and image output, then subsequent cycle can be entered, each time point is on a timeline all to one maximum permissible exposure time span of right translation, continue to follow identical pattern be exposed, each step such as image output and slotting point processing, produce this film.
And when photosensitive unit 11 is distinguished into n group photosensory assembly, this photosensitive unit 11 can carry out following action with interval Δ t even time interval respectively in simple terms: second group of photosensory assembly 112 starts exposure, the 3rd group of photosensory assembly 113 starts exposure ..., n-th group photosensory assembly starts exposure, first group of photosensory assembly 111 starts exposure, second group of photosensory assembly 112 image output, the 3rd group of photosensory assembly 113 image output ..., n-th group photosensory assembly image output, first group of photosensory assembly 111 image output.Then proceed identical action equally and produce this film.
In sum, through this photosensitive unit being divided into the photosensory assembly of at least two groups and each group of time of exposure being staggered, distinguishes image output, make the maximum permissible exposure time span interval more than image output of each group of photosensory assembly, and improving while time of exposure and can maintain picture update rate, therefore really can reach the purpose of the present invention.
Only as described above, it is only the preferred embodiments of the invention, when the scope of the invention process can not be limited with this, the simple equivalence change namely generally made according to the present patent application the scope of the claims and patent specification content with modify, be all still covered by the present invention within the scope of the patent.
Claims (19)
1. a photographic attachment, is used for exporting a film, it is characterised in that comprise:
One photosensitive unit, including one first group of photosensory assembly and one second group of photosensory assembly, this first group of photosensory assembly starts exposure at a very first time point, image at one second time point output exposure gained, this second group of photosensory assembly exports the image of exposure gained after exposure between this very first time point and this second time point, and such image forms this film.
2. photographic attachment as claimed in claim 1, this film is exported with a picture update rate, definition maximum permissible exposure time span is the time difference starting to be exposed to the image of output exposure gained, it is characterized in that, this first group of photosensory assembly and this second group of photosensory assembly have identical maximum permissible exposure time span, and both start the interval of exposure and export the interval of the image of exposure gained equal to both and be equal to the inverse of this picture update rate.
3. photographic attachment as claimed in claim 2, it is characterized in that, this photosensitive unit includes being divided into this first group of photosensory assembly binary and this second group of photosensory assembly, and this second group of photosensory assembly image output to two times of interval of this first group of photosensory assembly image output equal to this maximum permissible exposure time span.
4. photographic attachment as claimed in claim 2 or claim 3, it is characterized in that, this second group of photosensory assembly one the 3rd time point before this very first time puts starts exposure, and the image of one the 4th time point output exposure gained between this very first time point and this second time point, 3rd time point and the interval system of this very first time point are the aforementioned interval starting exposure, and the 4th time point and the interval system of this second time point are the interval of the aforementioned image exporting exposure gained.
5. photographic attachment as claimed in claim 2 or claim 3, it is characterised in that this second group of photosensory assembly starts again at exposure after the image of output exposure gained, this first group of photosensory assembly starts again at exposure after the image of output exposure gained.
6. photographic attachment as claimed in claim 2, it is characterised in that this photosensitive unit includes substantially always organizing number according to and is divided into this first group of photosensory assembly of many deciles, this second group of photosensory assembly and other least one set photosensory assembly.
7. photographic attachment as claimed in claim 6, it is characterized in that, this second group of photosensory assembly and other least one set photosensory assembly are after this first group of photosensory assembly exposure, sequentially with the inverse of this picture update rate for interval even time interval ground image output so that this first group of photosensory assembly be the image of output exposure gained after this total group number is multiplied by the time span of this image output interval.
8. photographic attachment as claimed in claim 7, it is characterized in that, it is the maximum permissible exposure time span that this total group number is multiplied by image output interval that this first group of photosensory assembly has time span, and this second group of photosensory assembly and other least one set photosensory assembly also have identical maximum permissible exposure time span, each time point organizing image output is each group of time point starting exposure toward the time point pushing back this identical maximum permissible exposure time span.
9. photographic attachment as described in any claim in claims 1 to 3 and 6 to 8, also include the processor of an image receiving each group of photosensory assembly exposure gained respectively, it is characterized in that, this processor utilizes the image of this group photosensory assembly received to calculate the image supplying the part being different from this group photosensory assembly position respectively in the way of slotting point processing, and sequentially exports the image after such calculating and form this film.
10. a method for imaging, is performed by just like the photographic attachment described in any claim in claim 1 to 9 to export a film, it is characterised in that this method for imaging comprises:
This first group of photosensory assembly starts exposure at a very first time point；
This second group of photosensory assembly in exposure after this very first time put after one the 4th time point output exposure gained image；And
The image of this first group of photosensory assembly the second time point output exposure gained after the 4th time point, such image forms this film.
11. method for imaging as claimed in claim 10, it is characterized in that, this photographic attachment exports this film with a picture update rate, definition maximum permissible exposure time span is the time difference starting to be exposed to the image of output exposure gained, wherein, this first group of photosensory assembly and this second group of photosensory assembly are with identical maximum permissible exposure time span, and both start the interval of exposure and export the interval of the image exposing gained equal to it and be equal to the inverse of this picture update rate.
12. method for imaging as claimed in claim 11, it is characterized in that, this photosensitive unit is divided into this first group of photosensory assembly binary and this second group of photosensory assembly, and from two times of the interval of this second group of photosensory assembly image output to this first group of photosensory assembly image output equal to this maximum permissible exposure time span.
13. the method for imaging as described in claim 10 or 11 or 12, it is characterized in that, this processor utilizes the image of this group photosensory assembly received to calculate the image supplying the part being different from this group photosensory assembly position respectively in the way of slotting point processing, and sequentially exports the image after such calculating and form this film.
14. a photographic attachment, for exporting a film, it is characterized by comprising: a photosensitive unit, including one first group of photosensory assembly and one second group of photosensory assembly, this first group of photosensory assembly starts exposure at a very first time point, at the image of one second time point output exposure gained, this second group of photosensory assembly starts exposure at one the 4th time point, at the image of one the 5th time point output exposure gained, such image forms this film, and this very first time put before the 4th time point.
15. photographic attachment as claimed in claim 14, it is characterised in that the inverse being spaced apart this picture update rate of this very first time point and the 4th time point.
16. photographic attachment as claimed in claim 15, it is characterised in that drawn reciprocal two times that the maximum permissible exposure time is this picture update rate of this first group of photosensory assembly and this second group of photosensory assembly being divided into by this photosensitive unit.
17. photographic attachment as claimed in claim 14, it is characterised in that this photosensitive unit includes substantially always organizing number according to and is divided into this first group of photosensory assembly of many deciles, this second group of photosensory assembly and other least one set photosensory assembly.
18. photographic attachment as claimed in claim 17, it is characterised in that this second group of photosensory assembly and other least one set photosensory assembly after this first group of photosensory assembly exposure, sequentially with the inverse of this picture update rate be interval even time interval start exposure.
19. photographic attachment as claimed in claim 18, it is characterised in that this is respectively organized photosensory assembly and has maximum permissible exposure time span, and this maximum permissible exposure time span is the inverse that this total group number respectively organizing photosensory assembly is multiplied by this picture update rate.
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