TWI665610B - Scan device - Google Patents
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Abstract
一種掃描裝置，其中掃描裝置包括複數影像擷取單元，其中各影像擷取單元包括單元主體、光源電路板、光源、透鏡陣列、感測電路板以及光學感測元件。單元主體包括第一側面、第二側面及讀取區，第一側面垂直第二側面。光源電路板設置於第一側面。光源設置於光源電路板。透鏡陣列設置於單元主體內。感測電路板設置於第二側面。光學感測元件設置於感測電路板。藉由上述構造，光源發射之光線於單元主體內經複數次反射後形成輸出光線，輸出光線由讀取區輸出至待掃描物件後反射形成圖像光線，圖像光線經讀取區進入單元主體與透鏡陣列後，成像於光學感測元件上。 A scanning device, wherein the scanning device includes a plurality of image capturing units, wherein each image capturing unit includes a unit body, a light source circuit board, a light source, a lens array, a sensing circuit board, and an optical sensing element. The unit body includes a first side surface, a second side surface, and a reading area. The first side surface is perpendicular to the second side surface. The light source circuit board is disposed on the first side. The light source is disposed on the light source circuit board. The lens array is disposed in the unit body. The sensing circuit board is disposed on the second side. The optical sensing element is disposed on the sensing circuit board. With the above structure, the light emitted by the light source is reflected multiple times in the unit body to form an output light. The output light is reflected from the reading area to the object to be scanned to form an image light. The image light enters the unit body and After the lens array, it is imaged on the optical sensing element.
Description
本發明係關於一種掃描裝置，特別是一種薄型掃描裝置。 The invention relates to a scanning device, in particular to a thin scanning device.
一般手持式掃描裝置於掃描物件時，先由發光單元投射光線至待掃描物，並經由待掃描物反射後之影像光線，因此類掃描裝置係由光源直接由一入射角度照射待掃描物再經等倍成像之透鏡陣列呈像於感測元件上，採取此設計結構時，因感測元件必須設置於透鏡陣列與物件之同等距離處，為配合光學成像的設計條件，限制了掃描裝置的尺寸，並且掃描裝置內部元件配置的自由度也受到限制。此外，若想縮短光源與待掃描物之間距離時，此類掃描裝置又會因光線分佈不均而造成掃描品質不良，雖然光 線分佈不均的問題可經由多組光學元件之設計而調整，但其中恐因多組光學元件的排列需經精密計算，若出現誤差則會造成光學元件設置之固定角度發生誤差，同時光線之路徑也會因此受到影響，而導致掃描裝置的掃描之品質下降，因此有必要提供一種新的掃描裝置以解決現有技術存在的問題。 Generally, when scanning an object, a handheld scanning device first projects light to the object to be scanned by the light emitting unit, and reflects the image light after being reflected by the object to be scanned. Therefore, the scanning device is irradiated with the light source directly from an incident angle and then passes The lens array of equal magnification is imaged on the sensing element. When this design structure is adopted, the sensing element must be placed at the same distance from the lens array and the object. In order to meet the design conditions of optical imaging, the size of the scanning device is limited. , And the degree of freedom in the arrangement of components inside the scanning device is also limited. In addition, if you want to shorten the distance between the light source and the object to be scanned, such scanning devices will cause poor scanning quality due to uneven light distribution. The problem of uneven line distribution can be adjusted through the design of multiple sets of optical elements, but the arrangement of multiple sets of optical elements may need to be accurately calculated. If there is an error, the fixed angle of the optical element setting will be wrong. The path will also be affected and the scanning quality of the scanning device will be reduced. Therefore, it is necessary to provide a new scanning device to solve the problems existing in the prior art.
本發明之主要目的係在提供一種薄型掃描裝置。 The main object of the present invention is to provide a thin scanning device.
為達成上述之目的，本發明之掃描裝置包括複數影像擷取單元，其中各影像擷取單元包括單元主體、光源電路板、光源、透鏡陣列、感測電路板以及光學感測元件。單元主體包括第一側面、第二側面及讀取區，第一側面垂直第二側面，讀取區與第二側面相對。光源電路板設置於第一側面。光源設置於光源電路板並位於單元主體內。透鏡陣列設置於單元主體內，且位於讀取區與第二側面之間。感測電路板設置於第二側面。光學感測元件設置於感測電路板。藉由上述構造，光源發射之光線於單元主體內經複數次反射後形成輸出光線，輸出光線由讀取區輸出至待掃描 物件後反射形成圖像光線，圖像光線經讀取區進入單元主體與透鏡陣列後，成像於光學感測元件上。 To achieve the above object, the scanning device of the present invention includes a plurality of image capturing units, wherein each image capturing unit includes a unit body, a light source circuit board, a light source, a lens array, a sensing circuit board, and an optical sensing element. The unit body includes a first side, a second side, and a reading area. The first side is perpendicular to the second side, and the reading area is opposite to the second side. The light source circuit board is disposed on the first side. The light source is disposed on the light source circuit board and is located in the unit body. The lens array is disposed in the unit body and is located between the reading area and the second side surface. The sensing circuit board is disposed on the second side. The optical sensing element is disposed on the sensing circuit board. With the above structure, the light emitted by the light source is reflected multiple times in the unit body to form output light, and the output light is output from the reading area to the scan. The object reflects back to form image light. After the image light enters the unit body and the lens array through the reading area, it is imaged on the optical sensing element.
影像擷取單元藉由本發明之光源發射之光線於單元主體內經複數次反射後形成一輸出光線，並由讀取區輸出至待掃描物件之特徵，藉由使用較少的反射元件，將影像擷取單元整特設計的複雜度，也將降低影像擷取單元整體的厚度。 The image capturing unit uses the light emitted by the light source of the present invention to reflect the light in the unit body multiple times to form an output light, which is output from the reading area to the features of the object to be scanned. By using fewer reflecting elements, the image is captured. The complexity of the overall design of the acquisition unit will also reduce the overall thickness of the image acquisition unit.
1、1a、1b‧‧‧影像擷取單元 1, 1a, 1b ‧‧‧ image capture unit
10‧‧‧單元主體 10‧‧‧Unit body
11‧‧‧第一側面 11‧‧‧ the first side
12‧‧‧第二側面 12‧‧‧ second side
13‧‧‧讀取區 13‧‧‧reading area
14‧‧‧導光槽 14‧‧‧light guide
141‧‧‧中空反射空間 141‧‧‧ hollow reflection space
142‧‧‧反光片 142‧‧‧Reflector
15‧‧‧集光槽 15‧‧‧light trough
151‧‧‧第一反射面 151‧‧‧first reflecting surface
152‧‧‧第二反射面 152‧‧‧Second reflective surface
20‧‧‧光源電路板 20‧‧‧light source circuit board
30‧‧‧光源 30‧‧‧ light source
31‧‧‧光線 31‧‧‧light
32‧‧‧輸出光線 32‧‧‧ output light
33‧‧‧第一反射光線 33‧‧‧ the first reflected light
34‧‧‧第二反射光線 34‧‧‧ second reflected light
40‧‧‧透鏡陣列 40‧‧‧lens array
50‧‧‧感測電路板 50‧‧‧sensing circuit board
60‧‧‧光學感測元件 60‧‧‧optical sensor
90‧‧‧待掃描物件 90‧‧‧ Object to be scanned
91‧‧‧圖像光線 91‧‧‧Image light
100‧‧‧掃描裝置 100‧‧‧scanning device
145‧‧‧第一開口 145‧‧‧First opening
146‧‧‧第二開口 146‧‧‧Second opening
144‧‧‧反射面 144‧‧‧Reflective surface
θ1、θ2‧‧‧傾斜角度 θ 1 , θ 2 ‧‧‧ tilt angle
圖1係本發明之影像擷取單元之第一實施例之示意圖。 FIG. 1 is a schematic diagram of a first embodiment of an image capturing unit of the present invention.
圖2係本發明之影像擷取單元之第二實施例之示意圖。 FIG. 2 is a schematic diagram of a second embodiment of the image capturing unit of the present invention.
圖3係本發明之影像擷取單元之第三實施例之示意圖。 FIG. 3 is a schematic diagram of a third embodiment of the image capturing unit of the present invention.
圖4係本發明之掃描裝置之一實施例之示意圖。 FIG. 4 is a schematic diagram of an embodiment of a scanning device of the present invention.
為能讓 貴審查委員能更瞭解本發明之技術內容，特舉較佳具體實施例說明如下。以下請參考圖1關於本發明之影像擷取單元之第一實施例之示意圖。 In order to make your reviewing committee better understand the technical content of the present invention, specific preferred embodiments are described below. Please refer to FIG. 1 for a schematic diagram of a first embodiment of the image capturing unit of the present invention.
如圖1所示，本發明之影像擷取單元1包括單元主體10、光源電路板20、光源30、透鏡陣列40、感測電路板50以及光學 感測元件60，其中光源30、透鏡陣列40以及光學感測元件60設置至於單元主體10內部，光源電路板20以及感測電路板50設置於單元主體10外部，且光源電路板20的設置位置垂直於感測電路板50的設置位置。光源30設置於光源電路板20，光學感測元件60設置於感測電路板50。 As shown in FIG. 1, the image capturing unit 1 of the present invention includes a unit body 10, a light source circuit board 20, a light source 30, a lens array 40, a sensing circuit board 50, and an optical device. The sensing element 60, in which the light source 30, the lens array 40, and the optical sensing element 60 are disposed inside the unit main body 10, the light source circuit board 20 and the sensing circuit board 50 are disposed outside the unit main body 10, and the light source circuit board 20 is disposed at a position A position perpendicular to the sensing circuit board 50. The light source 30 is disposed on the light source circuit board 20, and the optical sensing element 60 is disposed on the sensing circuit board 50.
如圖1所示，在本實施例中，單元主體10包括第一側面11、第二側面12、讀取區13、導光槽14以及集光槽15，其中第一側面11垂直於第二側面12，光源電路板20設置於第一側面11，感測電路板50設置於第二側面12，透鏡陣列40位於讀取區13與第二側面12之間。根據本發明之一具體實施例，第一側面11與第二側面12得分別設置一開孔，以便設置於光源電路板20之光源30、設置於感測電路板50之光學感測元件60分別由對應之開孔進入單元主體10內部。 As shown in FIG. 1, in this embodiment, the unit body 10 includes a first side surface 11, a second side surface 12, a reading area 13, a light guide groove 14, and a light collection groove 15, where the first side surface 11 is perpendicular to the second side In the side surface 12, the light source circuit board 20 is disposed on the first side surface 11, the sensing circuit board 50 is disposed on the second side surface 12, and the lens array 40 is located between the reading area 13 and the second side surface 12. According to a specific embodiment of the present invention, each of the first side surface 11 and the second side surface 12 must be provided with an opening for the light source 30 provided on the light source circuit board 20 and the optical sensing element 60 provided on the sensing circuit board 50 respectively. The inside of the unit body 10 is entered through the corresponding opening.
如圖1所示，在本實施例中，導光槽14位於光源30之上，導光槽14具有一中空反射空間141、第一開口145以及第二開口146，導光槽14之形狀可以是長方體、L形柱體、正方體、四菱台或梯形柱體。光源30為LED光源且設置於導光槽14之外，並位於導光槽14與集光槽15之間，光源30發射之光線31經第 一開口145入射導光槽14，並於導光槽14之中空反射空間141內經至少一次反射後形成第一反射光線33，第一反射光線33經第二開口146離開導光槽14進入位於導光槽14下方之集光槽15，並於集光槽15內經至少一次反射後形成輸出光線32。 As shown in FIG. 1, in this embodiment, the light guide groove 14 is located above the light source 30. The light guide groove 14 has a hollow reflection space 141, a first opening 145, and a second opening 146. The shape of the light guide groove 14 may be It is a cuboid, an L-shaped cylinder, a cube, a quad-block, or a trapezoidal cylinder. The light source 30 is an LED light source and is disposed outside the light guide groove 14 and is located between the light guide groove 14 and the light collection groove 15. The light 31 emitted by the light source 30 passes through the first An opening 145 enters the light guide groove 14 and forms a first reflected light 33 after reflecting in the hollow reflection space 141 of the light guide groove 14 at least once. The first reflected light 33 leaves the light guide groove 14 through the second opening 146 and enters the light guide groove 14. The light collecting groove 15 below the light groove 14 is reflected in the light collecting groove 15 at least once to form an output light 32.
如圖1所示，在本實施例中，集光槽15的外型類似梯形之柱體，集光槽15包括第一反射面151以及第二反射面152，其中第一反射光線33進入集光槽15後經第一反射面151反射後形成一第二反射光線34，第二反射光線34經第二反射面152反射後形成輸出光線32。輸出光線32由讀取區13輸出至待掃描物件90後反射形成一圖像光線91，圖像光線91經讀取區13進入單元主體10與透鏡陣列40後，成像於光學感測元件60上。 As shown in FIG. 1, in this embodiment, the shape of the light collecting groove 15 is similar to a trapezoidal pillar. The light collecting groove 15 includes a first reflecting surface 151 and a second reflecting surface 152, where the first reflected light 33 enters the collecting surface. The light groove 15 is reflected by the first reflecting surface 151 to form a second reflected light 34, and the second reflected light 34 is reflected by the second reflecting surface 152 to form an output light 32. The output light 32 is output from the reading area 13 to the object to be scanned 90 and is reflected to form an image light 91. The image light 91 enters the unit body 10 and the lens array 40 through the reading area 13 and is imaged on the optical sensing element 60 .
在此須注意的是，透鏡陣列40為一般手持式掃描裝置所使用的套裝模組，因透鏡陣列40為現有技術且非本發明改良的重點，故不再此贅述其細節。在本實施例中，光學感測元件60為電耦合元件(Charge Coupled Device，CCD)但本發明不以此為限。根據本發明之一具體實施例，為提高集光槽15的集光效果，第一反射面151之傾斜角度θ1範圍為40度至50度。第二反射面152之傾斜角度θ2範圍為100度至110度。此外，亦可於導光槽14 塗佈反光塗料或黏貼反光板以強化光線31於導光槽14內的反射率。 It should be noted here that the lens array 40 is a package module used by a general handheld scanning device. Since the lens array 40 is the prior art and is not the focus of the improvement of the present invention, details thereof will not be repeated here. In this embodiment, the optical sensing element 60 is an electrically coupled device (Charge Coupled Device, CCD), but the present invention is not limited thereto. According to one embodiment of the present invention, to improve the light collecting effect of the light collector groove 15, the first reflecting surface 151 of the inclined angle θ 1 ranges from 40 degrees to 50 degrees. The inclination angle θ 2 of the second reflecting surface 152 ranges from 100 degrees to 110 degrees. In addition, a light-reflective coating or a reflective plate may be applied to the light guide groove 14 to enhance the reflectance of the light 31 in the light guide groove 14.
在此須注意的是，根據發明之一具體實施例，本發明之影像擷取單元1亦可省略導光槽14與集光槽15，光線31直接於單元主體10內部經複數次反射後形成輸出光線32，輸出光線32由讀取區13輸出至待掃描物件90後反射形成一圖像光線91，圖像光線91經讀取區13進入單元主體10與透鏡陣列40後，成像於光學感測元件60上。 It should be noted here that according to a specific embodiment of the invention, the image capturing unit 1 of the present invention may also omit the light guide groove 14 and the light collecting groove 15, and the light 31 is formed directly after being reflected multiple times inside the unit main body 10. The output light 32 is output from the reading area 13 to the object to be scanned 90 and is reflected to form an image light 91. The image light 91 enters the unit body 10 and the lens array 40 through the reading area 13 and is imaged on the optical sensor.测 Element60 上。 On the component 60.
以下請參考圖2關於本發明之影像擷取單元之第二實施例之示意圖。 Please refer to FIG. 2 for a schematic diagram of a second embodiment of the image capturing unit of the present invention.
如圖2所示，本發明之影像擷取單元1a與第一實施例的差異在於，在本實施例中，影像擷取單元1a的光源30為LED光源並設置於導光槽14內，且集光槽15之第二反射面152與第一反射面151間的距離較短，而除前述差異之外，本發明之影像擷取單元1a的發光與成像方式與第一實施例之影像擷取單元1相同，故不再贅述，請參考第一實施例之相關段落。 As shown in FIG. 2, the difference between the image capturing unit 1 a of the present invention and the first embodiment is that in this embodiment, the light source 30 of the image capturing unit 1 a is an LED light source and is disposed in the light guide groove 14, and The distance between the second reflecting surface 152 and the first reflecting surface 151 of the light collecting groove 15 is short. In addition to the foregoing differences, the light emission and imaging method of the image capturing unit 1a of the present invention is the same as that of the first embodiment. The taking unit 1 is the same, so it will not be described again, please refer to the relevant paragraphs of the first embodiment.
以下請參考圖3關於本發明之影像擷取單元之第三實施例之示意圖。 Please refer to FIG. 3 for a schematic diagram of a third embodiment of the image capturing unit of the present invention.
如圖3所示，本發明之影像擷取單元1b與第一實施例的差異在於，在本實施例中，影像擷取單元1b沒有集光槽15，影像擷取單元1b之導光槽14為L形導光柱體，且導光槽14包括兩反光片142，其中此兩反光片142設置於中空反射空間141，其中光源30發出之該光線31入射該導光槽14，並於該導光槽14內經複數次反射後形成第一反射光線33與第二反射光線34，其中第二反射光線34經反射面144反射後形成輸出光線32。而除前述差異之外，本發明之影像擷取單元1b的發光與成像方式與第一實施例之影像擷取單元1相同，故不再贅述，請參考第一實施例之相關段落。 As shown in FIG. 3, the difference between the image capturing unit 1b of the present invention and the first embodiment is that in this embodiment, the image capturing unit 1b does not have a light collecting groove 15, and the light guiding groove 14 of the image capturing unit 1b It is an L-shaped light guide cylinder, and the light guide groove 14 includes two light reflecting plates 142. The two light reflecting plates 142 are disposed in the hollow reflection space 141. The light 31 emitted from the light source 30 enters the light guide groove 14 and is guided in the light guide. A plurality of reflections inside the light groove 14 form a first reflected light 33 and a second reflected light 34, wherein the second reflected light 34 is reflected by the reflection surface 144 to form an output light 32. In addition to the aforementioned differences, the light-emitting and imaging methods of the image capturing unit 1b of the present invention are the same as those of the image capturing unit 1 of the first embodiment, so no further description is needed, please refer to the relevant paragraphs of the first embodiment.
以下請參考圖4關於本發明之掃描裝置之一實施例之示意圖。 Please refer to FIG. 4 for a schematic diagram of an embodiment of the scanning device of the present invention.
如圖4所示，在本實施例中，本發明之掃描裝置100係由六個影像擷取單元1組合而成，但本發明不以此為限，本發明之掃描裝置100內含影像擷取單元1的數量可是實際設計需求改變。本發明之掃描裝置100可以是一手持式掃描裝置，藉由複數影像擷取單元1組合以掃描待掃描物件90。 As shown in FIG. 4, in this embodiment, the scanning device 100 of the present invention is a combination of six image capturing units 1, but the present invention is not limited to this. The scanning device 100 of the present invention includes image capturing Taking the number of units 1 may change the actual design requirements. The scanning device 100 of the present invention may be a handheld scanning device, which is combined by a plurality of image capturing units 1 to scan an object to be scanned 90.
本發明之掃描裝置100係藉由複數影像擷取單元1、1a、1b依據讓感測電路板50垂直光源電路板20的設置，讓光源30發出之光線31經多次折射後間接照射於待掃描物件90，藉此省去先前技術中結構複雜之光學元件，讓本發明之影像擷取單元1、1a、1b以簡單的結構，大幅度地減少影像擷取單元1、1a、1b之尺寸，不僅達到薄型化影像擷取單元1、1a、1b之目的，同時亦減少了影像擷取單元1、1a、1b製造之複雜性以降低製作之不良率，藉此增加影像擷取單元1、1a、1b之製造精度並降低製作成本。同時，亦可由多個影像擷取單元1、1a、1b組合成掃描裝置100增加了影像擷取單元1、1a、1b的適用性。 The scanning device 100 of the present invention uses a plurality of image capturing units 1, 1a, 1b to allow the sensing circuit board 50 to be perpendicular to the light source circuit board 20, so that the light 31 emitted from the light source 30 is indirectly irradiated to the target after being refracted multiple times. The object 90 is scanned, thereby eliminating the complicated optical elements in the prior art, so that the image capturing unit 1, 1a, 1b of the present invention has a simple structure, and the size of the image capturing unit 1, 1a, 1b is greatly reduced. , Not only achieve the purpose of thinning the image capturing unit 1, 1a, 1b, but also reduce the complexity of manufacturing the image capturing unit 1, 1a, 1b to reduce the defective rate of production, thereby increasing the image capturing unit 1, 1a, 1b manufacturing accuracy and reduce manufacturing costs. At the same time, a plurality of image capturing units 1, 1a, 1b can also be combined into a scanning device 100, which increases the applicability of the image capturing units 1, 1a, 1b.
需注意的是，上述僅為實施例，而非限制於實施例。譬如此不脫離本發明基本架構者，皆應為本專利所主張之權利範圍，而應以專利申請範圍為準。 It should be noted that the above are merely examples, and are not limited to the examples. For example, those who do not depart from the basic structure of the present invention should be the scope of the rights claimed by the patent, and the scope of the patent application shall prevail.
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106142730A TWI665610B (en) | 2017-12-06 | 2017-12-06 | Scan device |
| JP2018071961A JP2019103113A (en) | 2017-12-06 | 2018-04-03 | Scanning unit and scanning device |
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| Application Number | Priority Date | Filing Date | Title |
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| TW106142730A TWI665610B (en) | 2017-12-06 | 2017-12-06 | Scan device |
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| TW201926129A TW201926129A (en) | 2019-07-01 |
| TWI665610B true TWI665610B (en) | 2019-07-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW530477B (en) * | 2001-09-04 | 2003-05-01 | Veutron Corp | Optical device for scanner |
| TW561276B (en) * | 2002-04-12 | 2003-11-11 | Veutron Corp | Optical lens device of image scanner |
| US20160091647A1 (en) * | 2014-09-29 | 2016-03-31 | Palo Alto Research Center Incorporated | Light Guide Based Optical System For Laser Line Generator |
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2017
- 2017-12-06 TW TW106142730A patent/TWI665610B/en active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW530477B (en) * | 2001-09-04 | 2003-05-01 | Veutron Corp | Optical device for scanner |
| TW561276B (en) * | 2002-04-12 | 2003-11-11 | Veutron Corp | Optical lens device of image scanner |
| US20160091647A1 (en) * | 2014-09-29 | 2016-03-31 | Palo Alto Research Center Incorporated | Light Guide Based Optical System For Laser Line Generator |
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| JP2019103113A (en) | 2019-06-24 |
| TW201926129A (en) | 2019-07-01 |
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