CN108282594A - Rewind control system in scanning instrument - Google Patents
Rewind control system in scanning instrument Download PDFInfo
- Publication number
- CN108282594A CN108282594A CN201810090238.6A CN201810090238A CN108282594A CN 108282594 A CN108282594 A CN 108282594A CN 201810090238 A CN201810090238 A CN 201810090238A CN 108282594 A CN108282594 A CN 108282594A
- Authority
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- China
- Prior art keywords
- aerophotograph
- glass
- press sheet
- sheet glass
- scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00591—Conveying sheets before or after scanning from the scanning position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/00607—Grippers or the like, e.g. suction grippers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
- H04N1/00702—Position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00742—Detection methods
- H04N1/00758—Detection methods using a prescan
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
The invention discloses the control system that rewinds in a kind of scanning instrument, mainly solve the problem of that the prior art needs artificial roll film that can not complete to rewind to different structure and size egative film.It includes egative film guiding fixing device (1), tabletting control device (2) and coil transmission device (3), egative film guides fixing device and tabletting control device to fix on the scanner, coil transmission device is fixed on the side of egative film guiding fixing device, the tabletting control device includes press sheet glass (21), hinge (22), glass elevating lever (23) and sensor (24), press sheet glass is fixed on by hinge in the middle part of scanner casing, glass elevating lever is located among the lower edge of press sheet glass, glass elevating lever cooperates with hinge and completes lifting for press sheet glass, whether sheet metal falls on sensor detection press sheet glass.Stability of the present invention is good, reliability is high, accumulated error is small, and picture quality is good, can be used for continuously walking the scanning instrument of piece.
Description
Technical field
The invention belongs to technical field of electronic equipment, more particularly to one kind rewinds control system, can be used for continuously walking
The scanning instrument of piece.
Background technology
Currently, the scan digitizing for film of taking photo by plane is still the most basic digitlization means of China's digital photogrammetry.It is geographical
The particularity of information system proposes very high requirement to the digitized precision of aerophotograph, and general scanner is difficult to meet.For
The professional scanner of the digitized high-precision requirement of aerophotograph and special development and production is known as scanning instrument, as production aerophotograph number
The key equipment of word image, the surveying production unit extensive use at home and abroad of scanning instrument.Existing scanning instrument needs
Roll film process is manually completed, and a roll of aerophotograph is usually made of hundreds of aerophotographs, manual roll film will expend a large amount of human resources.
Patent " industrial x-ray negative film scanner " (Publication No. of Wenzhou Hong Tai non-destructive testings Co., Ltd application
206422825U), structure includes babinet, area array camera, pallet, LED light source.When the scanner strengthens scanning although
Stability, but it is without the system that rewinds, and needs to open scanner babinet after scanning, replaces egative film manually, could continue
It is scanned.A roll of aerophotograph is usually made of hundreds of aerophotographs, and the scanning that a roll of aerophotograph is completed using the scanner needs a few days,
A large amount of manpowers will be also expended simultaneously completes the work that egative film is replaced.
Patent " a kind of automatically continuously into the negative film scanner of egative film " (publication number of Shenzhen Vigorhood Photoelectric Co., Ltd.'s application
For 202309855U) comprising shell, camera, the pcb board with sensor.Compared with above-mentioned patent, it comprises certainly
Dynamic roll film control system.The control system that rewinds includes stepper motor, worm screw, worm screw knob and optoelectronic switch, wherein snail
Bar is fixed on the rotor of stepper motor, drives worm screw knob, optoelectronic switch saturating on egative film by detecting by worm screw
Unthreaded hole judges the forward travel distance of egative film, and controls the rotation of stepper motor.The device is during rewinding to forward travel distance
Judgement, dependence is detection of the optoelectronic switch to loophole on egative film.The invention is directed to traditional camera egative film, and this is special
Different chassis construction, if without this special construction of loophole on egative film, such as：Aerophotograph, medical film, then optoelectronic switch can not carry out just
Often judge, this process of automatically scanning can not be successfully progress.
Invention content
It is an object of the invention in view of the above shortcomings of the prior art, provide rewinding in a kind of scanning instrument
Control system is completed in scanning instrument scanning process, avoiding artificial roll film to the automatic of different structure and size egative film
Roll film process.
To achieve the above object, implementation of the invention is as follows：
1. the control system that rewinds in a kind of scanning instrument, including egative film guiding fixing device, tabletting control dress
It sets and is separately fixed on scanner casing with coil transmission device, egative film guiding fixing device and tabletting control device, roll film
Cylinder transmission device is fixed on the side of egative film guiding fixing device, it is characterised in that：
Tabletting control device includes that press sheet glass, hinge, glass elevating lever and sensor, press sheet glass are fixed by hinge
In the middle part of scanner casing, glass elevating lever be located at press sheet glass it is lower along centre position and quantity only there are one, pass through glass
Lifting for press sheet glass is completed in the collaborative work of elevating lever and hinge, and sensor is Hall sensor, and it is left to be located at glass elevating lever
Whether side, the sheet metal for detecting press sheet glass front end fall completely.
2. a kind of method for the control that using above system rewind, which is characterized in that including：
1) before entire volume aerophotograph formally scan, prescan first is carried out to aerophotograph, selects the geometry of identifier in aerophotograph
Center carries out image recognition by template of this identifier；
2) stem scanning is carried out to aerophotograph, whether detection aerophotograph marches to correct position；
3) full wafer scanning is carried out to aerophotograph after stem scanning, and the aerophotograph picture file after scanning is stored into computer；
4) start roll film after the completion of full wafer scanning, press sheet glass is gradually lifted under the Collaborative Control of glass elevating lever and hinge
Rise, stepper motor work so that toothed belt is rotated, band movable belt pulley rotate, make active coil surround axis rotation, control aerophotograph by
Driven coil passes sequentially through guide card wheel and press sheet glass and gradually advances to active coil；
5) according to the step-ahead prediction algorithm of stepper motor to obtain step-length Z next timen, by following formula eliminate aerophotograph by from
The error W that dynamic coil (14) is generated to active coil (11) roll film processn-1：
Kn-1=(len-Wn-1+Wn-2)/Zn-1
Zn=(len+Wn-1)/Kn-1
Wherein, Wn-2Roll film error, W for the n-th -2 timesn-1For (n-1)th roll film error, len be individual aerophotograph length,
Zn-1For No. (n-1)th motor traveling step number, ZnFor n-th motor traveling step number, Kn-1For stepper motor roll film step pitch；
6) stepper motor has been advanced ZnAfter step, aerophotograph, which is advanced, to be stopped, and press sheet glass falls, aerophotograph is flattened, by position
Whether sensor judgement press sheet glass falls completely：
If not falling completely, hand inspection mechanical breakdown is needed；
If falling completely, entire roll film process is completed, and is scanned next time.
The present invention has the following advantages compared with prior art：
1, stability is good
There are four glass elevating lever in existing scanner, four angles of press sheet glass are located at, if four elevating levers
The rate of climb is slightly different, then will produce inclination when press sheet glass rises so that the stability of equipment cannot be guaranteed；
Due to being provided only with a glass elevating lever in the tabletting control device of the present invention, it is ensured that press sheet glass was rising
Inclination, the stability of lifting means are not will produce in journey.
2, reliability is high
There are four glass elevating levers in existing scanner, if any one of four glass elevating levers break down,
Equipment can not work normally；
The present invention is since only there are one glass elevating lever, the probability to break down is a quarter of original invention, therefore
The present invention makes the reliability of equipment get a promotion；
3, picture quality is good
Whether original scanner is fallen using human eye observation's press sheet glass, therefore be cannot be guaranteed that press sheet glass is fallen on completely and swept
It retouches on instrument casing, if press sheet glass is not fallen on scanner casing completely, it cannot be guaranteed that the planarization of aerophotograph, the figure scanned
As will appear deformation；
The present invention is due to the use of Hall sensor, it is ensured that the planarization of aerophotograph makes image not be deformed, therefore improves
Picture quality；
4, the egative film of no light transmission pore structure can be scanned
Due to only for the egative film for having special light transmission pore structure in original scanner, when roll film, need to only advance fixed
Light transmission hole number completes the process to rewind, and in face of the egative film of no loophole, such as：Aerophotograph, medical film, then can not be just
Often work；
The present invention judges aerophotograph boundary due to using image recognition algorithm, and in conjunction with the identification similarity of prescribed limit,
So that the process that rewinds of no loophole egative film may be implemented in the system；
5, roll film error is not accumulated
The process of error free removing measure in existing equipment, each roll film can all generate error, with the increasing of roll film quantity
More, error can also accumulate therewith；
The present invention is due to using error compensation algorithm, before roll film each time, during all eliminating previous secondary roll film
Error makes the error during roll film not accumulate.
Description of the drawings
Fig. 1 is the control system architecture schematic diagram that rewinds in scanning instrument of the present invention；
Fig. 2 is that the present invention rewind the implementation flow chart of control.
Specific implementation mode
To make the object of the invention, technical solution and advantage be more clearly understood, below in conjunction with the accompanying drawings, the present invention is made into one
The detailed description of step, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to the present invention
Restriction.
Referring to Fig.1, the control system that rewinds in scanning instrument of the present invention, including egative film guiding fixing device 1, pressure
Piece control device 2 and coil transmission device 3, egative film guiding fixing device 1 and tabletting control device 2 are separately fixed at scanner
On casing, coil transmission device 3 is fixed on the side of egative film guiding fixing device 1, wherein：
The egative film guides fixing device 1, including driving and driven coil (11,14), guide card wheel 12 and left and right roll film holder
13, left and right roll film holder 13 is fixed on the left and right ends of scanner casing, and its spacing can be adjusted, various sizes of to adapt to
Egative film, guide card wheel 12 are located in the L-type card slot on scanner casing, and horizontal position is between left and right roll film holder 13 and tabletting glass
Between glass 21, it is used for the limit and guiding of egative film, so that egative film is not touched other components on scanner during advancing, makes bottom
Piece does not generate abrasion, and active coil 11 is separately fixed at driven coil 14 on left and right roll film holder 13, can surround axle center
Coiled egative film is placed on driven coil 14 by rotation before starting roll film.
The tabletting control device 2, including press sheet glass 21, hinge 22, glass elevating lever 23 and sensor 24, tabletting glass
Glass 21 is fixed on by hinge 22 in the middle part of scanner casing, is used for, by smoothing negative film, making the image scanned not be deformed, glass
Glass elevating lever 23 be located at press sheet glass 21 it is lower along centre position and quantity only there are one, pass through glass elevating lever 23 and hinge 22
Collaborative work complete press sheet glass 21 and lift, sensor 24 uses Hall sensor, and positioned at 23 left side of glass elevating lever,
Whether the sheet metal for detecting 21 front end of press sheet glass falls completely.
The coil transmission device 3, including toothed belt 31 and belt wheel 32, the belt wheel 32 are equipped with groove, toothed belt 31
It is stuck on the groove of belt wheel 32, which is driven by stepper motor, active coil 11 is made to surround axis rotation, drive aerophotograph
It advances.
When the control system that rewinds in the scanning instrument executes roll film action, the pressure in tabletting control device 2
Sheet glass 21 is lifted by glass elevating lever 23 and the collaborative work completion of hinge 22, and stepper motor work makes 31 turns of toothed belt
Dynamic, band movable belt pulley 32 rotates, and active coil 11 is made to surround axis rotation, and control aerophotograph is passed sequentially through by driven coil 14 to be led
Piece wheel 12 and press sheet glass 21 are gradually advanced to active coil 11.
With reference to Fig. 2, the control system that rewinds in scanning instrument of the present invention rewind the method for control,
Realize that steps are as follows：
Step 1, prepare scanning
Before entire volume aerophotograph formally scan, coiled egative film is placed on driven coil 14, the head of aerophotograph is pulled out
Press sheet glass 21 is lifted in portion manually, so that aerophotograph is passed sequentially through 21 lower section of guide card wheel 12 and press sheet glass, and aerophotograph head is pasted
Onto active coil 11, manually the preceding 3-5 of coiled aerophotograph waste paper are rolled onto on active coil 11, and by press sheet glass 21
It puts down；
Step 2, prescan is carried out to aerophotograph
Prescan is the identification scanning process to aerophotograph head, it is therefore an objective to find out the identifier in aerophotograph；Prescan is completed
After pop up dialog box, the geometric center of identifier in artificial selection aerophotograph carries out image recognition, identification by template of this identifier
Similarity initial value be 0.99, which is applicable to the identification of most of aerophotograph, and user can wear feelings according to aerophotograph
Condition is adjusted the value, and adjusting range is between 0.9852-0.99.
Step 3, stem scanning is carried out to aerophotograph
Stem scanning is the judgement scanning process to aerophotograph head, it is therefore an objective to detect whether aerophotograph marches to correct position,
After the completion of stem scanning, it will be clustered with point of the similarity more than 0.99 put in identifier, obtain two cluster centres, if
Two cluster centres are in the set 0-10cm scanning ranges of stem scanning, then assert that aerophotograph marches to correct position,
Otherwise belong to out of position.
Step 4, full wafer scanning is carried out to aerophotograph
It needs to be scanned parameter setting before full wafer scanning, this system is equipped with the sweep parameter of a set of acquiescence, user Ke Gen
According to needing to modify to sweep parameter, the full wafer scanning of aerophotograph is carried out after the completion of parameter setting, image is automatic after the completion of scanning
It stores to the store path in sweep parameter.
Step 5, roll film
Start roll film after the completion of full wafer scanning, press sheet glass 21 under the Collaborative Control of glass elevating lever 23 and hinge 22 by
Gradually to lift, stepper motor work makes toothed belt 31 rotate, and band movable belt pulley 32 rotates, and active coil 11 is made to surround axis rotation,
Control aerophotograph passes sequentially through guide card wheel 12 and press sheet glass 21 from driven coil 14 and gradually advances to active coil 11.
Step 6, error concealment
Aerophotograph on driven coil 14 is gradually rolled onto on active coil 11, with film layers on active coil 11
Number increases, and the radius of active coil 11 gradually increases, and leads to the displacement distance of each step of stepper motor, i.e. step pitch is also different,
Thus roll film process can all have error each time.It is produced during can eliminating roll film using the step-ahead prediction algorithm of stepper motor
Raw error.Its step are as follows：
1) after n-th roll film, piece position is walked according to (n-1)th time, obtains (n-1)th roll film error Wn-1, and according to
It walks piece position the n-th -2 times, obtains the n-th -2 times roll film error Wn-2；
2) according to No. (n-1)th motor traveling step number Zn-1, individual aerophotograph length len, (n-1)th roll film error Wn-1With
N-2 roll film error Wn-2, calculate (n-1)th roll film step pitch Kn-1：
Kn-1=(len-Wn-1+Wn-2)/Zn-1
3) piece distance Len+W is walked according to (n-1)th timen-1With 2) in obtained (n-1)th roll film step pitch Kn-1, calculate
N-th motor traveling step-length Zn：
Zn=(len+Wn-1)/Kn-1
4) according to 1) -3 after each roll film) it is calculated as a result, obtaining n-th motor traveling step-length ZnWith (n-1)th
Secondary roll film step pitch Kn-1, constantly update roll film length, you can achieve the purpose that error concealment.
Step 7, it is checked after roll film
Stepper motor traveling ZnAfter step, aerophotograph, which is advanced, to be stopped, association of the press sheet glass 21 in glass elevating lever 23 and hinge 22
Aerophotograph is flattened with gradually being fallen under control, then judges whether press sheet glass 21 falls completely by sensor 24：
If not falling completely, hand inspection mechanical breakdown is needed；
If falling completely, entire roll film process is completed, and is scanned next time；
Step 3 is repeated to step 7, until entire volume scanning is completed.
Above description is only example of the present invention, does not constitute any limitation of the invention, it is clear that for
It, all may be without departing substantially from the principle of the invention, structure after having understood the content of present invention and principle for one of skill in the art
In the case of, carry out various modifications in form and details and change, but these modifications and variations based on inventive concept
Still within the claims of the present invention.
Claims (5)
1. the control system that rewinds in a kind of scanning instrument, including egative film guiding fixing device (1), tabletting control device
(2) and coil transmission device (3), egative film guiding fixing device (1) and tabletting control device (2) are separately fixed at scanner machine
On shell, coil transmission device (3) is fixed on the side of egative film guiding fixing device (1), it is characterised in that：
Tabletting control device (2) includes press sheet glass (21), hinge (22), glass elevating lever (23) and sensor (24), tabletting
Glass (21) is fixed on by hinge (22) in the middle part of scanner casing, and glass elevating lever (23) is located at the lower edge of press sheet glass (21)
There are one centre positions and quantity, and press sheet glass (21) is completed in the collaborative work for passing through glass elevating lever (23) and hinge (22)
Lift, sensor (24) be Hall sensor, be located at glass elevating lever (23) on the left of, for detecting press sheet glass (21) front end
Sheet metal whether fall completely.
2. system according to claim 1, it is characterised in that：It includes driving and driven coil that egative film, which guides fixing device (1),
(11,14), guide card wheel (12) and left and right roll film holder (13), left and right roll film holder (13) are fixed on the left and right two of scanner casing
End, guide card wheel (12) is located in the L-type card slot on scanner casing, and horizontal position is between left and right roll film holder (13) and tabletting
Between glass (21), active coil (11) is separately fixed at driven coil (14) on left and right roll film holder (13).
3. system according to claim 1, it is characterised in that：Coil transmission device (3) includes toothed belt (31) and band
It takes turns (32), which is equipped with groove, and toothed belt (31) is stuck on the groove of belt wheel (32).
4. the method for the control that using system described in claim 1 rewind, which is characterized in that including：
1) before entire volume aerophotograph formally scan, prescan first is carried out to aerophotograph, selects the geometric center of identifier in aerophotograph,
Image recognition is carried out by template of this identifier；
2) stem scanning is carried out to aerophotograph, whether detection aerophotograph marches to correct position；
3) full wafer scanning is carried out to aerophotograph after stem scanning, and the aerophotograph picture file after scanning is stored into computer；
4) start roll film, Collaborative Control of the press sheet glass (21) in glass elevating lever (23) and hinge (22) after the completion of full wafer scanning
It gradually lifts down, stepper motor work makes toothed belt (31) rotate, and band movable belt pulley (32) rotates, and active coil (11) is made to surround
Axis rotation, control aerophotograph pass sequentially through guide card wheel (12) and press sheet glass (21) from driven coil (14) and are gradually rolled up to active
Piece cylinder (11) is advanced；
5) according to the step-ahead prediction algorithm of stepper motor to obtain step-length Z next timen, aerophotograph is eliminated by driven volume by following formula
The error W that piece cylinder (14) is generated to active coil (11) roll film processn-1：
Kn-1=(len-Wn-1+Wn-2)/Zn-1
Zn=(len+Wn-1)/Kn-1
Wn-2Roll film error, W for the n-th -2 timesn-1It is individual aerophotograph length, Z for (n-1)th roll film error, lenn-1It is n-th-
No. 1 motor traveling step number, ZnFor n-th motor traveling step number, Kn-1For stepper motor roll film step pitch；
6) stepper motor traveling ZnAfter step, aerophotograph, which is advanced, to be stopped, and press sheet glass (21), which is fallen, flattens aerophotograph, then by sensor
(24) whether judgement press sheet glass (21) falls completely：
If not falling completely, hand inspection mechanical breakdown is needed；
If falling completely, entire roll film process is completed, and is scanned next time.
5. according to the method described in claim 4, it is characterized in that step (2) carries out stem scanning to aerophotograph, detection aerophotograph is
It is no to march to correct position, it realizes as follows：
Prescan 2a) is carried out to aerophotograph, the geometric center of identifier, figure is carried out by template of this identifier in artificial selection aerophotograph
As identification, the similarity initial value of identification is 0.99；
Stem scanning 2b) is carried out to aerophotograph, will be clustered with point of the similarity more than 0.99 put in identifier, obtain two
Cluster centre assert that aerophotograph is advanced if two cluster centres are in the set 0-10cm scanning ranges of stem scanning
To correct position, otherwise belong to out of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090238.6A CN108282594B (en) | 2018-01-30 | 2018-01-30 | Automatic film winding control system in aerial film scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090238.6A CN108282594B (en) | 2018-01-30 | 2018-01-30 | Automatic film winding control system in aerial film scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108282594A true CN108282594A (en) | 2018-07-13 |
| CN108282594B CN108282594B (en) | 2023-04-04 |
Family
ID=62805852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090238.6A Active CN108282594B (en) | 2018-01-30 | 2018-01-30 | Automatic film winding control system in aerial film scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282594B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000341474A (en) * | 1999-05-27 | 2000-12-08 | Canon Inc | Roll film housing unit and scanner device |
| CN1286409A (en) * | 1999-08-26 | 2001-03-07 | 戈莱泰格成像贸易股份公司 | Optoelectronic scanning device for photographic film |
| US6381042B1 (en) * | 1997-09-10 | 2002-04-30 | L.A. Batchelder And Sons Consulting, Inc. | Automated negative scanner |
-
2018
- 2018-01-30 CN CN201810090238.6A patent/CN108282594B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381042B1 (en) * | 1997-09-10 | 2002-04-30 | L.A. Batchelder And Sons Consulting, Inc. | Automated negative scanner |
| JP2000341474A (en) * | 1999-05-27 | 2000-12-08 | Canon Inc | Roll film housing unit and scanner device |
| CN1286409A (en) * | 1999-08-26 | 2001-03-07 | 戈莱泰格成像贸易股份公司 | Optoelectronic scanning device for photographic film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108282594B (en) | 2023-04-04 |
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