CN202600994U - Camera type point reading machine and pen head module thereof - Google Patents
Camera type point reading machine and pen head module thereof Download PDFInfo
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- CN202600994U CN202600994U CN 201220252169 CN201220252169U CN202600994U CN 202600994 U CN202600994 U CN 202600994U CN 201220252169 CN201220252169 CN 201220252169 CN 201220252169 U CN201220252169 U CN 201220252169U CN 202600994 U CN202600994 U CN 202600994U
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Abstract
The utility model relates to a camera type point reading machine and a pen head module thereof. The camera type point reading machine comprises a machine body and a camera electrically connected with a main control circuit which is arranged in the machine body; the camera is mounted inside the machine body; and a transparent pen head is arranged in front of a lens of the camera. The lens of the camera is coaxial with the transparent pen head; the image distance of the camera is fixedly arranged; a distance from the pen point of the transparent pen head to the optical center of the lens is a point reading object distance; and the point reading object distance is matched with the image distance. According to the camera type point reading machine disclosed by the utility model, images with sufficient breadth and distortion degree meeting OCR (Optical Character Recognition) can be obtained in a manner that characters on a textbook are shot by using the transparent pen head; corresponding voices are retrieved from an electronic document corresponding to the shot textbook and played according to the characters recognized through OCR, thus the point reading function is realized; and the locating and focusing are automatically finished during shooting, and the image quality and shooting speed are greatly increased, thus the accuracy and speed of point reading are increased.
Description
Technical field
The utility model relates to a kind of electronic learning device; Specifically; Relate to a kind of camera shooting type point reader that is used for and focus literal or picture on location, clear take pictures books or the document fast, and then realize the written module and the camera shooting type point reader of reading function in closer distance.
Background technology
The topmost application of the utility model is that point reader is carried out the principle transformation.
Point reader is pandemic on the market in recent years a kind of novel children instrument of giving financial aid to students.Be characterized in, lay crisscross conductive mesh film, join one outward only to respond to or to send the click pen of wireless signal in the inside of a housing similar with notebook computer.During use the textbook horizontal on the housing that launches; With clicking pen is clicked has literal on the textbook position; Clicking the wireless signal that pen sends will be accepted by the conduction web plate that interior is laid, and the electromagnetic wave launched on the web plate of perhaps conducting electricity can be clicked pen and receive.CPU in the casing handles the coordinate figure that the back just can obtain click location to this signal; And then the speech data corresponding to this coordinate position that is stored in the speech data memory according to the coordinate figure handle takes out; Deliver to speech processing circuit and send the corresponding sound of this position literal, play the effect of " reading ".
Also has a kind of talking pen based on optical identification (OID) principle.Its principle is, on the printed article of routine, prints additional the site that one deck naked eyes are difficult for discovering, and the site is regularly arranged by the two-dimensional invisible code of design in advance, and the two-dimentional code value of pattern of rows and columns of the site of diverse location and representative is different.The OID talking pen " is taken pictures " facing to printed article, promptly knows the two-dimentional code value of the site, place of taking pictures.Store voice data in the internal storage of OID talking pen in advance, thereby the OID talking pen can retrieve corresponding voice data according to the two-dimentional code value that obtains and play back, realize the function of reading according to two-dimentional code value index.
But these the two kinds schemes that realize the reading function all have shortcoming.The point reader scheme must be placed on books on the heavy point reader, uses very inconvenient.And relate to complicated emission, receive and handle, cost height and precision is low.The special printing treatment that the OID talking pen must add printed article has increased printing cost, uses also to receive than limitations.
Patent " the multi-functional reading machine of camera shooting type " (patent No. 200820094440.8) proposes a kind of point reader that realizes with optical photography, and comparing traditional reading facility has advantages of small volume, advantage with low cost.Focus but adopt a kind of " positioning baffle " to position when it is taken pictures, it is convenient inadequately to use, and is inappropriate for large-scale production, and machine shape also is difficult to do attractive in appearancely.
The utility model content
The technical problem underlying that the utility model will solve is, focuses the deficiency of aspect, location to the camera shooting type point reader, and a kind of camera shooting type point reader is provided, and it disposes one can conveniently carry out the transparent nib that microspur is taken pictures and focused.
Another technical matters that the utility model will solve is; Focus the deficiency of aspect, location to the camera shooting type point reader; A kind of written module that is used for the camera shooting type point reader is provided, and it can be installed in and make the user can carry out microspur easily on the camera shooting type point reader to take pictures and focus.
The another technical matters that the utility model will solve is, focuses the deficiency of aspect, location to the camera shooting type point reader, and a kind of camera shooting type point reader is provided, and it disposes one can make the user carry out the written module that microspur is taken pictures and focused easily.
The utility model solves the technical scheme that its technical matters adopted: construct a kind of camera shooting type point reader; The camera that comprise fuselage, the governor circuit interior with being arranged on said fuselage is electrically connected; Said camera is installed in the inside of said fuselage, and the place ahead of cam lens is provided with transparent nib; Wherein, the camera lens of said camera is coaxial with said transparent nib, and the image distance of said camera fixedly installs, and the nib of said transparent nib is the reading object distance to the photocentre of said camera lens distance, and said reading object distance and said image distance are suitable.
In the described camera shooting type point reader of the utility model, the camera lens of said camera make under the setting of said image distance and said reading object distance said camera can clearly take by reading matter on area be at least the image in the zone of 30mm * 20mm.
In the described camera shooting type point reader of the utility model, said transparent nib is the uniform semiclosed transparent shell of wall thickness, and it comprises conical light transmission part.
In the described camera shooting type point reader of the utility model, be provided with at least one LED exposure lamp near the said camera, said LED exposure lamp is electrically connected with said governor circuit.
In the described camera shooting type point reader of the utility model, be provided with the light sensor that is used to measure the object surface brightness near the said camera, said light sensor is electrically connected with said governor circuit.
The utility model solves another technical scheme that its technical matters adopted: construct a kind of written module that is used for the camera shooting type point reader, comprise lens mount, be installed on the lens mount and the camera that is electrically connected with flexible PCB and be arranged on the transparent nib in the place ahead of cam lens; Wherein, the camera lens of said camera is coaxial with said transparent nib, and the image distance of said camera fixedly installs, and the nib of said transparent nib is the reading object distance to the photocentre of said camera lens distance, and said reading object distance and said image distance are suitable; The said camera that is arranged so that of said image distance and said reading object distance can clearly be taken the image that is at least the zone of 30mm * 20mm by area on the reading matter; Said flexible PCB is provided with and is used for the golden finger plug that is connected with the governor circuit of said camera shooting type point reader.
At the described written module that is used for the camera shooting type point reader of the utility model, said transparent nib is the uniform semiclosed transparent shell of wall thickness, and it comprises conical light transmission part; Be provided with the LED exposure lamp near the said camera, said LED exposure lamp is electrically connected with said governor circuit.
At the described written module that is used for the camera shooting type point reader of the utility model, be provided with the light sensor that is used to measure the object surface brightness near the said camera, said light sensor is electrically connected with said governor circuit.
At the described written module that is used for the camera shooting type point reader of the utility model, also comprise being installed on the said lens mount bottom of camera lens one side dorsad; Wherein,
Be disposed with elastomeric element, thin film switch and thin film switch seat between said bottom and the lens mount, said thin film switch is installed on the thin film switch seat and with said flexible PCB and is electrically connected; Said transparent nib can be connected between said lens mount and the said thin film switch seat with moving axially; The corresponding section, center of the inboard of said bottom and said thin film switch is provided with boss; Said transparent nib receives external force when bottom moves, to push the thin film switch seat to bottom; The inboard boss of said bottom touches the said thin film switch that is installed on the thin film switch seat makes its conducting, and said elastomeric element was pushed the thin film switch seat open and made the thin film switch disconnection when external force was removed; Perhaps,
Be disposed with thin film switch, elastomeric element and touch-control pressing plate between said bottom and the lens mount, said thin film switch is installed in the inboard center of bottom and is electrically connected with said flexible PCB; Said transparent nib can be connected between said lens mount and the said touch-control pressing plate with moving axially; And be provided with boss towards a side of bottom and the corresponding section, center of said thin film switch on the said touch-control pressing plate; Said transparent nib receives external force when bottom moves, to promote the said thin film switch that said touch-control pressing plate touches on the bottom boss on it and makes its conducting, and said elastomeric element was pushed the touch-control pressing plate open thin film switch is broken off when external force was removed.
The utility model solves the another technical scheme that its technical matters adopted: construct a kind of camera shooting type point reader, comprise fuselage, be arranged on governor circuit and aforesaid written module in the fuselage; Wherein, said written module is installed in the front end of said fuselage, and said governor circuit is connected through said golden finger plug with said flexible circuit.
Implement the camera shooting type point reader of the utility model, locate when reading is taken pictures, focus automatic solution, improve picture quality and shooting speed greatly, thereby also improved the accuracy rate and some read rate of reading.
In the written module of the utility model; Transparent nib is combined with the camera that is electrically connected through FPC, exposure LED lamp, light sensor, thin film switch can constitute incorporate written module independent use in product; With low cost and be convenient to large-scale production; The camera shooting type point reader is become have more practical value, really reach easy to use, good looking appearance, be suitable for the requirement of large-scale production.
Description of drawings
Fig. 1 a is the synoptic diagram according to the transparent nib of the utility model one embodiment;
Fig. 1 b is the sectional view of transparent nib shown in Fig. 1 a;
Fig. 1 c is the sectional view according to the transparent nib of another embodiment of the utility model;
Fig. 2 is the synoptic diagram of the camera shooting type point reader of the utility model;
Fig. 3 a is the wiring layout according to the written module of the utility model one embodiment;
Fig. 3 b is the parts explosion of written module shown in Fig. 3 a;
Fig. 3 c is the assembling section of written module shown in Fig. 3 a;
Fig. 3 d is the FPC synoptic diagram in the written module shown in Fig. 3 a.
Embodiment
The technical scheme of the utility model is on the basis of the multi-functional reading machine of camera shooting type that in Chinese patent 200820094440.8, proposed; Positioning baffle is changed to transparent written module, literal printed on the books is taken pictures, again the image of taking pictures is carried out OCR identification; The character code of the literal that obtains being taken pictures; According to the character code that obtains, in storer, find corresponding sound playing to come out then, realize the function of " reading ".About the details of " reading " processing, but the explanation document of referenced patent 200820094440.8 describes transparent nib and written module at this.
Fig. 1 a is transparent written 301 a synoptic diagram according to the utility model one embodiment; Fig. 1 b is transparent written 301 a sectional view shown in Fig. 1 a; Fig. 1 c is transparent written 301 a sectional view according to another embodiment of the utility model.Can know that by Fig. 1 a to 1c in an embodiment, transparent nib is a uniform semiclosed shell of wall thickness.In the embodiment of Fig. 1 a and Fig. 1 b, transparent written 301 comprise anterior conical light transmission part 301a.In the embodiment shown in Fig. 1 c, transparent written 301 housing designs for arc-shaped curved surface.The direction that the design of shell is advanced after should making the light of image reflect through nib keeps identical variation basically, thereby the one-tenth image distortion on the imageing sensor in the camera (IMAGE SENSOR) is very little.Theoretical analysis and experimental verification prove that all the written distortion of cone is minimum, and the image of shooting does not influence follow-up OCR identification.But, if be designed to the arc-shaped curved surface shown in Fig. 1 c perhaps some people can feel more attractive in appearance, should guarantee as far as possible when designing like this that image fault can satisfy the OCR recognition requirement.If because image fault is difficult to identification more greatly, can extrapolate the distortion trend of image, before OCR, image fault proofreaied and correct according to written form parameter.
Fig. 2 is the synoptic diagram of the camera shooting type point reader of the utility model.Among the figure, camera 202 is built in the fuselage 205, and transparent written 301 devices are at the front end of fuselage 205, and in the place ahead of cam lens.Be provided with the governor circuit (not shown) in the fuselage, camera 202 is electrically connected with governor circuit.This governor circuit can comprise the module that is used to handle the image that camera 202 takes, be used to control camera 202 take pictures the module of action, based on the module of the brightness of the signal controlling LED exposure lamp of light sensor and the module of control thin film switch conducting/shutoff etc.In each embodiment of the utility model, what camera 202 adopted is fixed focus lens.The camera lens of camera 202 is coaxial with transparent written 301; The image distance of camera 202 fixedly installs, and transparent written 301 nib is reading object distance H to the photocentre distance of camera 202 camera lenses, and this reading object distance H is suitable with the image distance that fixedly installs; When making reading; As long as transparent nib vertically is placed on by on the reading matter, just can photograph distinct image, adjust object distance and need not the user.In this case, can photograph by area on the reading matter is the zone of W * W.The size of taking area W * W depends on the visual angle of camera lens; In order to obtain enough shooting breadths; The Word message that the image of make taking obtains after OCR identification is enough to that the retrieval to the literal section is only within one page, and the camera of employing must have enough big visual angle.And the picture traverse that photographs is at least greater than the longest word that possibly occur, so that realize taking pictures interpretative function.
In the embodiment of the utility model, the camera lens of camera make under the setting of said fixing image distance and reading object distance camera can clearly take by reading matter on area be at least the image in the zone of 30mm * 20mm.That is to say; The nib of transparent nib is designed to make and contacts just in time blur-free imaging on the imageing sensor at camera of nib and the object surface vertical with nib in the distance of the photocentre of the inner cam lens of body apart from device, and interesting areas can obtain complete image through transparent nib on the object surface on imageing sensor.
Also can find out by Fig. 2; The camera shooting type point reader of the utility model comprises fuselage 205; It is provided with push-button array 206, receiver J-Horner 207, USB socket 208, display screen 209, certainly also comprises the governor circuit, battery, loudspeaker, CPU, storer of the portion within it of not drawing among the figure etc.Be provided with LED exposure lamp 308, light sensor 309 near the camera.The general function of camera shooting type point reader be the literal that identifies according to OCR with the e-file corresponding by the textbook of taking pictures in retrieve and clapped literal and belong to the corresponding sound playing of paragraph and come out; Perhaps its explanatory content is shown on display screen 209, thus the function of realization reading or translation.Need explanation, the group of text that OCR identifies is the perhaps also discontinuous part of captured literal paragraph usually, also will carry out fuzzy search and just can find corresponding character paragraph and voice data thereof.
Need to prove; Though Fig. 2 is to be the technical scheme that example is explained the utility model with the lip pencil fuselage; But the camera shooting type point reader of the utility model can also be designed to other profiles, for example can fuselage be designed to flat rectangular shape, disc-shape, cartoon figure or animals shaped etc.In addition, can also the design of transparent nib be applied in the products such as PDA, mobile phone.
For ease of producing in batches, can combine transparent nib with the necessary miscellaneous part of shooting, form written module, so that in different camera shooting type point reader products, use as individual components.The written module of an embodiment of the utility model has wherein comprised each parts shown in Fig. 3 b by shown in Fig. 3 a, and Fig. 3 c is the cut-open view of the written module after the assembling.
Can know that by Fig. 3 a and 3b the camera lens module of an embodiment of the utility model is made up of parts such as transparent written 301, lens mount 302, camera 202, camera lens pressing plate 304, thin film switch seat 305, elastomeric element (for example metal clips or spring) 306, bottom 307, LED exposure lamp 308, light sensor 309, thin film switch 310, flexible circuits (FPC) 311.
In each parts, the FPC 311 shown in Fig. 3 d is vitals that each parts is electrically connected, and the center device has camera 202; Camera 202 both sides are provided with 2 LED exposure lamps 308; Opposite side is provided with the light sensor 309 that detects object surface light intensity; Top also is provided with a thin film switch 310.When being contained in the written module, FPC 311 will use together with the parts bending above it as an assembly shown in Fig. 3 b.
The mounted inside relation of nib module is by Fig. 3 b and Fig. 3 c explanation.Camera on the FPC 311 202 is inserted in the square hole (camera lens of camera is towards transparent nib, and camera lens is coaxial with transparent nib) at lens mount 302 middle parts, with camera lens pressing plate 304 FPC is pressed on lens mount 302 from the rear portion it fixedly is integrally formed.Because the square hole at lens mount middle part is penetrating, the light of LED exposure lamp 308 can illuminate object, and the light of object can see through anterior transparent nib and get into camera 202, and light sensor 309 also can detect the illuminance of object.
Transparent written 301 insert in 4 square holes of lens mount 302, and the chucking back can not be extracted by the barb restriction, but can slight mutual displacement be arranged owing to leave gap transparent written 301 along central axis direction with lens mount 302.
The last thin film switch 310 of FPC is attached on the thin film switch seat 305; Bending leans against 304 placements of camera lens pressing plate backward; Cover the bottom 307 that installs metal clips 306 in advance then; Simultaneously with the golden finger plug 312 of FPC 311 backward bending take advantage of a situation and stretch out bottom 307, squeeze into 2 screws at last from the bottom of bottom 307, make whole camera lens module form an integral body.
The written module that assembles is shown in Fig. 3 a, and the golden finger plug 312 of FPC 311 is exposed, so that insert the FPC socket of governor circuit, realizes being electrically connected of written module and governor circuit.
When transparent written 301 of written module is vertically clicked paper; Transparent written 301 upwards push thin film switch seat 305; Its inner chamber at bottom 307 is axially moved to bottom 307 bottom direction, make its connection by the boss extrusion film switch of bottom 307 middle inside.After nib was left paper, metal clips 306 was pushed thin film switch seat 305 and bottom 307 open, makes thin film switch 310 revert to off-state.
When the CPU in the governor circuit detects thin film switch 310 connections, light the LED exposure lamp according to the paper illuminance of light sensor 309 detections with suitable brightness and illuminate paper, start camera 202 simultaneously and take pictures, the image of acquisition is used for subsequent treatment.Subsequent treatment is referring to the description of patent 200820094440.8.
In the present embodiment, be disposed with elastomeric element, thin film switch and thin film switch seat between bottom and the lens mount, thin film switch is installed on the thin film switch seat and with flexible PCB and is electrically connected; Transparent nib can be connected between lens mount and the thin film switch seat with moving axially; The corresponding section, center of the inboard of bottom and thin film switch is provided with boss; Transparent nib receives external force when bottom moves, to push the thin film switch seat to bottom; The inboard boss of bottom touches the thin film switch that is installed on the thin film switch seat makes its conducting, and elastomeric element was pushed the thin film switch seat open and made the thin film switch disconnection when external force was removed.
In the written module of the utility model, the installation site of thin film switch is not limited to the embodiment shown in Fig. 3 b and the 3c.For example, in another embodiment, can between bottom and lens mount, set gradually thin film switch, elastomeric element and touch-control pressing plate (not shown), thin film switch is installed in the inboard center of bottom and is electrically connected with flexible PCB; Transparent nib can be connected between lens mount and the touch-control pressing plate with moving axially; And be provided with boss towards a side of bottom and the corresponding section, center of thin film switch on the touch-control pressing plate; Transparent nib receives external force when bottom moves, to promote the thin film switch that the touch-control pressing plate touches on the bottom boss on it and makes its conducting, and elastomeric element was pushed the touch-control pressing plate open thin film switch is broken off when external force was removed.
In addition; Know as is known to the person skilled in the art; The riding position of LED exposure lamp and light sensor is not limited to the position shown in Fig. 3 b, also can be placed near other positions of camera, for example near a certain position the top of camera, below or the place ahead; Only otherwise block camera lens, do not influence that take pictures can.
In addition, the quantity of LED exposure lamp also is not limited to 2, can also be 1 or 3 or more.
In the embodiment of the utility model, also light sensor 309 can be set.In this case, after governor circuit receives the signal of thin film switch conducting, just light the LED exposure lamp and illuminate paper, start camera 202 simultaneously and take pictures, and constantly adjust the luminous intensity of exposure lamp according to the mean flow rate of taking pictures image.In addition, also the LED exposure lamp can be set, carry out photometry and light sensor only is set.
In the written module of the utility model; The image distance of camera fixedly installs, and the nib of transparent nib is the reading object distance to the photocentre distance of camera lens, and this reading object distance and image distance are suitable; When making reading; As long as transparent nib vertically is placed on by on the reading matter, just can photograph distinct image, adjust object distance and need not the user.The camera that is arranged so that of image distance and reading object distance can clearly be taken the image that is at least the zone of 30mm * 20mm by area on the reading matter.In addition, flexible PCB is provided with and is used for the golden finger plug that is connected with the governor circuit of camera shooting type point reader.
Compare with the OID talking pen with traditional point reader, adopt the camera shooting type point reader of the transparent written module production of the utility model to have following clear superiority:
1) reduces into light talking pen to the point reader of heaviness, be more suitable for child and use.
2) directly reading on the textbook that the student is using needn't resemble special printing the OID books.
3) cost reduces greatly, is convenient to popularize.
4) scale production process is simple, and production efficiency is high, production cost is low.
The transparent nib of the utility model design, the light of the feasible image of being taken pictures can be through the almost imaging without distortion in camera of transparent nib.Like this, the position of nib just in time is the center of wanting the literal of reading, and nib just in time is an object distance to the distance of camera lens focus, locatees when taking pictures, focuses automatic solution, improves picture quality and shooting speed greatly, thereby has also improved the accuracy rate and some read rate of reading.
In addition, a kind of " translation of the taking pictures " function that on shooting mobile phone, comes into vogue is recently promptly taken pictures facing to bookish literal with mobile phone, by the translation software in the mobile phone character translation of taking pictures is come out simultaneously, and the new word that often runs into, difficult lexicography are practised and being very useful.But because the shake of hand often will be focused and just can be taken pictures successfully for a long time, the utility model also has use value to the improvement of mobile phone photograph during the mobile phone photograph literal.
Claims (10)
1. camera shooting type point reader comprises fuselage, the camera that is electrically connected with governor circuit in being arranged on said fuselage, it is characterized in that said camera is installed in the inside of said fuselage, and the place ahead of cam lens is provided with transparent nib; Wherein, the camera lens of said camera is coaxial with said transparent nib, and the image distance of said camera fixedly installs, and the nib of said transparent nib is the reading object distance to the photocentre of said camera lens distance, and said reading object distance and said image distance are suitable.
2. camera shooting type point reader according to claim 1; It is characterized in that, the camera lens of said camera make under the setting of said image distance and said reading object distance said camera can clearly take by reading matter on area be at least the image in the zone of 30mm * 20mm.
3. camera shooting type point reader according to claim 2 is characterized in that, said transparent nib is the uniform semiclosed transparent shell of wall thickness, and it comprises conical light transmission part.
4. according to each described camera shooting type point reader in the claim 1 to 3, it is characterized in that be provided with at least one LED exposure lamp near the said camera, said LED exposure lamp is electrically connected with said governor circuit.
5. according to each described camera shooting type point reader in the claim 1 to 3, it is characterized in that be provided with the light sensor that is used to measure the object surface brightness near the said camera, said light sensor is electrically connected with said governor circuit.
6. a written module that is used for the camera shooting type point reader is characterized in that, comprises lens mount, is installed in the lens mount and the camera that is electrically connected with flexible PCB and be arranged on the transparent nib in cam lens the place ahead; Wherein, the camera lens of said camera is coaxial with said transparent nib, and the image distance of said camera fixedly installs, and the nib of said transparent nib is the reading object distance to the photocentre of said camera lens distance, and said reading object distance and said image distance are suitable; The said camera that is arranged so that of said image distance and said reading object distance can clearly be taken the image that is at least the zone of 30mm * 20mm by area on the reading matter; Said flexible PCB is provided with and is used for the golden finger plug that is connected with the governor circuit of said camera shooting type point reader.
7. the written module that is used for the camera shooting type point reader according to claim 6 is characterized in that, said transparent nib is the uniform semiclosed transparent shell of wall thickness, and it comprises conical light transmission part; Be provided with the LED exposure lamp near the said camera, said LED exposure lamp is electrically connected with said governor circuit.
8. the written module that is used for the camera shooting type point reader according to claim 6 is characterized in that, is provided with the light sensor that is used to measure the object surface brightness near the said camera, and said light sensor is electrically connected with said governor circuit.
9. according to each described written module that is used for the camera shooting type point reader in the claim 6 to 8, it is characterized in that, also comprise being installed on the said lens mount bottom of camera lens one side dorsad; Wherein,
Be disposed with elastomeric element, thin film switch and thin film switch seat between said bottom and the lens mount, said thin film switch is installed on the thin film switch seat and with said flexible PCB and is electrically connected; Said transparent nib can be connected between said lens mount and the said thin film switch seat with moving axially; The corresponding section, center of the inboard of said bottom and said thin film switch is provided with boss; Said transparent nib receives external force when bottom moves, to push the thin film switch seat to bottom; The inboard boss of said bottom touches the said thin film switch that is installed on the thin film switch seat makes its conducting, and said elastomeric element was pushed the thin film switch seat open and made the thin film switch disconnection when external force was removed; Perhaps,
Be disposed with thin film switch, elastomeric element and touch-control pressing plate between said bottom and the lens mount, said thin film switch is installed in the inboard center of bottom and is electrically connected with said flexible PCB; Said transparent nib can be connected between said lens mount and the said touch-control pressing plate with moving axially; And be provided with boss towards a side of bottom and the corresponding section, center of said thin film switch on the said touch-control pressing plate; Said transparent nib receives external force when bottom moves, to promote the said thin film switch that said touch-control pressing plate touches on the bottom boss on it and makes its conducting, and said elastomeric element was pushed the touch-control pressing plate open thin film switch is broken off when external force was removed.
10. a camera shooting type point reader is characterized in that, comprise fuselage, be arranged in the fuselage governor circuit and like each described written module in the claim 6 to 9; Wherein, said written module is installed in the front end of said fuselage, and said governor circuit is connected through said golden finger plug with said flexible circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252169 CN202600994U (en) | 2012-05-31 | 2012-05-31 | Camera type point reading machine and pen head module thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252169 CN202600994U (en) | 2012-05-31 | 2012-05-31 | Camera type point reading machine and pen head module thereof |
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| CN202600994U true CN202600994U (en) | 2012-12-12 |
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| CN 201220252169 Expired - Fee Related CN202600994U (en) | 2012-05-31 | 2012-05-31 | Camera type point reading machine and pen head module thereof |
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