CN201585031U - Novel touch type image sensor - Google Patents
Novel touch type image sensor Download PDFInfo
- Publication number
- CN201585031U CN201585031U CN2009202115733U CN200920211573U CN201585031U CN 201585031 U CN201585031 U CN 201585031U CN 2009202115733 U CN2009202115733 U CN 2009202115733U CN 200920211573 U CN200920211573 U CN 200920211573U CN 201585031 U CN201585031 U CN 201585031U
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- glass
- light source
- photosensitive circuit
- led light
- image sensor
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Abstract
The utility model relates to a novel touch type image sensor, comprising glass, an LED light source, a columnar lens and a photosensitive circuit board, wherein the glass is horizontally arranged on the top, and the columnar lens is arranged at the light input end of the photosensitive circuit board. The novel touch type image sensor is characterized by also comprising a light microscope device which is arranged between the LED light source and the columnar lens, and the LED light source, the light microscope device, the columnar lens and the photosensitive circuit board are sequentially arranged under the glass in the same level. Compared with the prior art, the utility model has the advantages that optical lenses are additionally arranged in the optical part structure of the sensor, thereby the reflection light direction of a scanned object is changed to ensure that the direction of light entering the columnar lens is parallel to the glass; and in addition, the parts such as the columnar lens and the photosensitive circuit board are placed to be parallel to the scanned object so that the thickness of a touch type sensor device is reduced. The utility model can be widely applied to the fields such as a graph scanner, a facsimile apparatus, a marker recognizer, automatic office equipment and the like.
Description
Technical field
The utility model relates to a kind of contact-type image sensor (CIS) device.CIS is the abbreviation of English ContactImage Sensor.Contact-type image sensor is a kind of light signal to be converted into the transducer of the signal of telecommunication, is widely used in fields such as diagram form scanner, facsimile machine, landmark identification device and business automation equipment.
Background technology
Contact-type image sensor mainly is made up of led light source 2, lens pillar 3, glass 1 and photosensitive circuit plate 4 at present, as shown in Figure 1.The light that led light source sends sees through glass and reaches on the scanned object (as file, image etc.), difference along with the bright-dark degree of scanned object, light is partly or entirely reflexed on the lens pillar, light is after lens pillar focuses on, vertical irradiation is to photosensitive circuit plate imaging array, imaging array is made up of several light-sensitive elements, the different optical signals light-sensitive element of bright-dark degree is transformed into the signal of telecommunication that voltage magnitude varies in size, by shift register signal is delivered to operational amplifier then, signal is sent to connector after amplifying, the user can obtain facsimile signal after opto-electronic conversion by connector.As shown in Figure 1, the lens pillar 3 in the transducer places on the photosensitive circuit plate 4, and lens pillar 3, photosensitive circuit plate 4 are placed perpendicular to glass 1.The light that led light source sends must be mapped on glass with certain elevation angle, reflection ray focuses on the back vertical irradiation to the photosensitive circuit plate by lens pillar then, glass is very high to the distance between the photosensitive circuit plate, make the internal optics device height of contact-type image sensor to dwindle, thereby the thickness of whole contact-sensing apparatus generally is limited on the 15mm, and thickness can't reduce.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, in order to reduce sensor thickness, the utility model is put optical frames by adding in the transducer optical component structure, change light path, make optics in transducer, be parallel to the glass direction and place, realize dwindling the thickness of contact-sensing apparatus thus.
The utility model is achieved through the following technical solutions, the utility model transducer comprises glass, led light source, lens pillar, photosensitive circuit plate, the glass level is located at the top, lens pillar places the light input of photosensitive circuit plate, it is characterized in that, also comprise a mirror assembly, described mirror assembly places between led light source and the lens pillar, and led light source, mirror assembly, lens pillar, photosensitive circuit plate same level place under the glass in turn.
Preferably, described mirror assembly is the composite set of a light microscopic or some light microscopics, in order to change the reflection ray direction of scanned object, makes the radiation direction that enters lens pillar be parallel to glass.
Preferably, described mirror assembly is a reflective mirror.
Preferably, described mirror assembly is a catadioptric prism.
Described mirror assembly is a catadioptric prism, and is preferred, and simultaneously led light source and glass is vertical angle and installs and fixes.
Compared with prior art, the utility model is put optical frames by adding in the transducer optical component structure, change the reflection ray direction of scanned object, make the radiation direction that enters lens pillar be parallel to glass, lens pillar and these parts of photosensitive circuit plate are parallel to the scanned object placement, realize dwindling the thickness of contact-sensing apparatus thus.
Description of drawings
Fig. 1 is traditional contact-type image sensor internal optics modular construction schematic diagram in the background technology.
Fig. 2 is a touch imageing sensor internal optics modular construction schematic diagram among the embodiment 1.
Fig. 3 is a contact-type image sensor internal optics modular construction schematic diagram among the embodiment 2.
Fig. 4 is the optical path analysis schematic diagram of catadioptric prism among Fig. 3.
Description of symbols: 1-glass, 2-LED light source, 3-lens pillar, 4-photosensitive circuit plate, 5-speculum, 6-catadioptric prism
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated: present embodiment has provided detailed execution mode being to implement under the prerequisite with technical solutions of the utility model, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 2, a glass 1 is laid at the transducer top, and led light source 2, reflective mirror 5, lens pillar 3, photosensitive circuit plate 4 same levels place glass 1 time in turn.Tilt led light source 2 is installed in the transducer, its emission light is mapped on the glass 1 with a fixed angle of altitude, bar shaped lens pillar 3 is parallel to glass 1 laterally to be settled, and photosensitive circuit plate 4 is installed perpendicular to glass 1.When speculum 5 is installed, adjust the angle and the position of speculum 5, make the light of scanning object reflection form direct reflections on speculum 5 surfaces, reflection ray is parallel to glass 1 and vertically injects on the lens pillar 3.
Glass 1, led light source 2, reflective mirror 5, lens pillar 3 in the present embodiment, photosensitive circuit plate 4 each optics can be commercially available, is prior art.
In contact-type image sensor, the light that led light source sends is mapped on glass with certain elevation angle, and sees through glass and reach on the object that is scanned, and along with the difference of the bright-dark degree of scanned object, light is partly or entirely reflected.Compared with prior art, owing on the path of reflection ray, place a speculum, make radiation direction be parallel to scanning object by changing into perpendicular to scanning object, and be mapped on the lens pillar that is parallel to the scanning object placement, light projects on the photosensitive circuit plate of placing perpendicular to scanning object after focusing on through lens pillar.Present embodiment is by adding speculum, and lens pillar and photosensitive circuit plate can be arranged in parallel within contact-type image sensor inside, and the direction that the photosensitive circuit plate receives light is parallel to scanned object, and sensor device thickness can be contracted in the 7mm.
As shown in Figure 3, a glass 1 is laid at the transducer top, and led light source 2, catadioptric prism 5, lens pillar 3, photosensitive circuit plate 4 same levels place glass 1 time in turn.The vertical led light source 2 of installing in the transducer makes its emission light parallel with glass 1, and bar shaped lens pillar 3 is parallel to glass 1 laterally to be settled, and photosensitive circuit plate 4 is installed perpendicular to glass 1.When catadioptric prism 5 is installed, adjust the angle and the position of catadioptric prism 6, the light that led light source 2 is sent reflects by catadioptric prism 6A face, directive glass 1 at a certain angle, and the light of scanning object reflection forms direct reflection at catadioptric prism 6B face, parallel reflection ray vertically injects on the lens pillar 3 again, as shown in Figure 4.
Glass described in the present embodiment 1, led light source 2, catadioptric prism 5, lens pillar 3, photosensitive circuit plate 4 each optics can be commercially available, is prior art.
In contact-type image sensor, place led light source is vertical with scanned object, the parallel ejaculation of the light that led light source is sent, on the opticpath that led light source sends, place a catadioptric prism, the refraction of incident ray by catadioptric prism A face be directive glass at a certain angle, and see through glass and reach on the object that is scanned, difference along with the bright-dark degree of scanned object, light is partly or entirely reflected, adjust the position that the catadioptric prism is placed, make catadioptric prism B face on the reflection ray path, reflection ray forms the parallel reflection ray of direct reflection at catadioptric prism B face and vertically injects on the lens pillar again, light shines on the photosensitive circuit plate of placing perpendicular to scanning object through after the lens focus.By adding the catadioptric prism, led light source, lens and photosensitive circuit plate can be arranged in parallel within contact-type image sensor inside, the direction that direction that led light source emits beam and photosensitive circuit plate receive light all is parallel to scanned object, and sensor device thickness can be contracted in the 7mm.
Claims (5)
1. novel contact-type image sensor, comprise glass, led light source, lens pillar, photosensitive circuit plate, the glass level is located at the top, lens pillar places the light input of photosensitive circuit plate, it is characterized in that, also comprise a mirror assembly, described mirror assembly places between led light source and the lens pillar, and led light source, mirror assembly, lens pillar, photosensitive circuit plate same level place under the glass in turn.
2. transducer as claimed in claim 1 is characterized in that, described mirror assembly is the composite set of a light microscopic or some light microscopics.
3. transducer as claimed in claim 2 is characterized in that, described mirror assembly is a reflective mirror.
4. transducer as claimed in claim 2 is characterized in that, described mirror assembly is a catadioptric prism.
5. transducer as claimed in claim 4 is characterized in that, described mirror assembly is a catadioptric prism, and led light source and glass are vertical angle and install and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202115733U CN201585031U (en) | 2009-10-30 | 2009-10-30 | Novel touch type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202115733U CN201585031U (en) | 2009-10-30 | 2009-10-30 | Novel touch type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201585031U true CN201585031U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202115733U Expired - Fee Related CN201585031U (en) | 2009-10-30 | 2009-10-30 | Novel touch type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201585031U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905040A (en) * | 2011-07-27 | 2013-01-30 | 3M创新有限公司 | Imaging system for supporting documents |
| CN107133945A (en) * | 2017-04-28 | 2017-09-05 | 深圳市光太科技有限公司 | A kind of spliced wide cut near images harvester and acquisition method |
| CN107238395A (en) * | 2017-08-01 | 2017-10-10 | 珠海市微半导体有限公司 | The light stream mileage sensor-based system and its focus depth adjusting method of mobile robot |
| CN109462713A (en) * | 2018-10-26 | 2019-03-12 | 敦南科技（无锡）有限公司 | A kind of ultrathin type image sensor module |
-
2009
- 2009-10-30 CN CN2009202115733U patent/CN201585031U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905040A (en) * | 2011-07-27 | 2013-01-30 | 3M创新有限公司 | Imaging system for supporting documents |
| CN102905040B (en) * | 2011-07-27 | 2016-04-20 | 3M创新有限公司 | For the imaging system of documentary evidence imaging |
| CN107133945A (en) * | 2017-04-28 | 2017-09-05 | 深圳市光太科技有限公司 | A kind of spliced wide cut near images harvester and acquisition method |
| CN107238395A (en) * | 2017-08-01 | 2017-10-10 | 珠海市微半导体有限公司 | The light stream mileage sensor-based system and its focus depth adjusting method of mobile robot |
| CN109462713A (en) * | 2018-10-26 | 2019-03-12 | 敦南科技（无锡）有限公司 | A kind of ultrathin type image sensor module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20111030 |