TW390089B - Image pickup element unit - Google Patents

Description

4163pif.doc / 00S Manchurian standard calendar β.1 · Consumption printed in cooperatives f A7 B7 V. Description of the invention (丨) BACKGROUND OF THE INVENTION The present invention relates to an image receiving unit, and in particular to a video receiving unit It can be installed in the image receiving unit of the facsimile or automatic teller machine to capture the image of the surface of the object, especially such as the text on the fax original or the protruding text on the ATM card. Please refer to FIG. 2 for a description of the prior art, which shows a schematic diagram of a conventional reflection-type image receiving unit. It has an imaging device composed of a rod lens and is set up at the position where the amount of reflected light is received the most. .

In such an image receiving unit, the light source 1 is installed at a specific distance from a target surface of the original P of the image. The light source 1 is composed of several light emitters arranged in rows, and emits light phi in a linear form, and the traveling direction of the light phi is the direction normal to the target surface of the original image P At a specific angle θ (0 degrees < θ < 90 degrees). The light Phi emitted by the light source passes through the glass plate 2 and enters the focal point corresponding to the rod lens array 3 on the target surface of the image original p in the direction of the incident angle Θ (focal P 〇int) the position of f. After the incident light irradiated on the surface of the object is reflected by the target surface, a reflected light rfl is formed in a direction where the reflection angle is ㊀. Therefore, the configuration of the cylindrical lens array 3 must match this specific angle Θ, so when the reflected light rfl is aggregated by the cylindrical lens array 3, it will be a conjugate distance from the original image surface ( The imaging position of conjugate distance) T produces an image. Conjugate distance T 4 scales (('NS) Λ 4— (210X297 mm) (诮 Read the note on the back before filling in this page)

A7 4l63pif.doc / 008 5. The description of the invention (>) is a characteristic parameter of the cylindrical mirror array 3, which represents the distance between the target surface of the image original P and the imaging position. The light receiving surfaces (Hght-receivingfaces) of the image receiving element 4 are arranged at the imaging position, and the reflected light rfl constituting the image plane is converted into an electronic signal by an array composed of a plurality of image receiving elements 4 and passed through the component arrangement board 4a An electronic signal is sent to the image processing system for specific processing. The light source 1 is installed on the light source disposition plate la, and the light source disposition plate la is installed in an appropriate position in the housing 5. The image receiving element 4 is mounted on the inner side wall of the casing 5 through a component arrangement plate 4a, so that its light receiving surface and the traveling direction of the reflected light rfl are perpendicular to each other. As described above, in the reflective image receiving unit, the arrangement of the light source 1 and the cylindrical lens array 3 are located on both sides of the normal line of the target surface of the original image P, and the angles are the same as the normal line of the target surface. That is, the included angle between the light emitted from the light source 1 and the target surface normal is Θ, and the included angle between the axial direction of the cylindrical lens array 3 and the target surface normal is also Θ. Therefore, the image receiving element can receive a large amount of reflected light, so for example, the protruding text on the ATM card can be displayed on the image display screen with appropriate contrast. However, the conventional reflective image shown in Figure 2 The receiving unit still has the disadvantage of being bulky, which is caused by the component arrangement board 4a on which the image receiving element 4 is installed is erected in the outer case 5 in an inclined manner. Please refer to FIG. 3, which shows a schematic diagram of another conventional reflection type image receiving unit, which reduces the volume of the image receiving unit by using the light intensity that the imaging device can receive. The picture is the same as the second picture 5 This paper size is iiilf Chinese Family Marker (~ CNS) Λ4 size (210X297g | Tj I (Please read the notes on the back before filling in this card)

* 1T A7 B7 4l63pif.doc / 008 V. The components of the invention description (4) use the same pictogram. ° The image receiving unit as shown in Figure 3, where the cylindrical lens array 3 is arranged The axial direction of the cylindrical lens array 3 is perpendicular to the target surface of the original image p to receive the light reflected by the object surface rfl. Therefore, the width of the housing 5A of the entire receiving unit can be made larger than that of the housing in FIG. 2 5 is small, but this kind of image receiving unit can't get great images. SUMMARY OF THE INVENTION The object of the present invention is to provide an image receiving unit which is compact and obtains sharp and clear images. In the first embodiment of the present invention, the 'image receiving unit includes: a light source which generates light and irradiates the light onto the target surface of the object', and the travel direction of the emitted light is at a specific angle with the normal direction of the target surface of the object; An imaging device installed at a specific angle is used to receive light reflected from the target surface, and the amount of reflected light received is the largest, and an image is formed at a specific imaging position; an image receiving element installed at a specific imaging position is used to receive Reflected light converging at a specific imaging position and converting the received reflected light into corresponding electronic signals; a housing for erecting and accommodating a light source, an imaging device, an image receiving element, and the like; and < arranged in the housing And a component arrangement board parallel to the target surface for mounting the image receiving component. The image receiving unit with the above configuration can reduce the image receiving order 6 (please read the note on the back before filling in this page) Paper size applies to China National Standard Beer ((, NS) Λ4 specifications (2 丨 0X297 mm) 4 163pif.doc / 008 _B7___ V. Description of the invention (α) The two sides of the shell of the element that are parallel to the original target surface of the image The distance between the inner walls reduces the size of the housing of the image receiving unit. Because the imaging device is installed at a specific angle to maximize the amount of reflected light, a clear image can be obtained by the image receiving element. Based on the second embodiment of the present invention, the image receiving unit includes: a light source that generates light and irradiates the light onto the target surface of the object, and the traveling direction of the emitted light is at a specific angle with the normal direction of the target surface of the object; An imaging device installed at a specific angle is used to receive the light reflected from the target surface, and the amount of reflected light received is the largest, and an image is formed at a specific imaging position; The image-receiving element at the imaging position is used to receive the reflected light aggregated at a specific imaging position and convert the received reflected light into a corresponding electronic signal; it is used to set up and accommodate the light source, the imaging device and the image-receiving element. A case; and a component arrangement board arranged in the case and perpendicular to the target surface for installing the image receiving element. With the configuration described in the second embodiment, the image receiving unit can be reduced in size from the original image. The object target surface is perpendicular to the distance between the two side walls, so the size of the housing of the image receiving unit can be reduced. In the second embodiment, it is similar to the first embodiment, where the imaging device is set up at a specific angle In order to make it receive the amount of reflected light 7 paper standard Bianzhou Chinese storehouse label (('NS) Λ4 size (210X29 * 7 mm) (Please read the note on the back before filling this page),? Τ 4163pif.doc / 008 A7 B7 5. The description of the invention is the largest, so you can get clear and clear images through the image receiving element. In the first implementation of the present invention In the second embodiment, in the component arrangement board for mounting the image receiving element, the component matching plate can be bent so that the light receiving surface of the image receiving element and the traveling direction of the reflected light are perpendicular to each other. For the arrangement method, only the position of the component arrangement plate needs to be adjusted in a specific direction on the side wall of the casing, so that the image receiving element can be correctly positioned at the corresponding imaging position. In the first embodiment and the second embodiment of the present invention It can also include a light source configuration board for installing a light source, wherein the light source is arranged in a manner perpendicular to the target surface and a reflector is set at a specific angle to reflect the light emitted by the light source at a fixed angle. In the type, the light source arrangement plate is fixed to the side wall of the housing in an inclined manner, and the light source arrangement plate and the opposite inner wall of the housing can be parallel to each other, so the size required for the housing of the image receiving unit can be further reduced. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments in detail with the accompanying drawings as follows: A brief description of the formula: FIG. 1 FIG. 2 shows a schematic diagram of a device for an image receiving unit according to a first embodiment of the present invention. FIG. 2 shows a schematic diagram of a device for a conventional reflection-type image receiving unit. FIG. 3 shows another conventional reflection. The device of the image receiving unit is not intended; 8 (#Please read the notes on the back before filling this page) Order of the Ministry of Economics and Social Affairs 榡 -T-consumer report printed by the press ^-This paper is a calendar of Chinese hoarders Biao (('NS) Λ4 *! # · (210 X297 ^-^) A7 B7 4l63pif.doc / 008 V. Description of the invention (ς) Figure 4 illustrates a second embodiment of the present invention, an image receiving FIG. 5 is a schematic diagram of a device for an image receiving unit according to a third embodiment of the present invention; FIG. 6 is a schematic diagram of a device for an image receiving unit according to a fourth embodiment of the present invention; and FIG. 7 shows a first embodiment of the present invention. The embodiment is a schematic diagram of a device for an image receiving unit. Symbols of the drawings are explained: 1, 11: light source la, 11a: light source configuration plate 2, 12: glass plate 3, 13: cylindrical lens array 4, 14: image receiving element 4a, 14a, 14b: Component placement boards 5, 5A, 15A, 15B '15C, 15D, 15E: Housing Ub: Illuminator section 11c: Reflector f = Focus. LI, L2, L3, L4, L5: Reduced Amplitude P: original image \ phi, phll, rfl, rfll: light T: conjugate distance Θ: angle of incidence (reflection angle) 9 This paper size applies to Chinese national standard beer (('NsTA4 ^ > f & (210X297 public %) &Quot; I— n 1 I— --- 1-----m I-(锖 Please read the notes on the back before filling this page)

、 1T Printed by the Central Standards Bureau of Manchuria Department of Consumers and Consumers Cooperatives. Printed by the Central Standards Bureau of the Ministry of Standards β-χ Eliminated by the cooperatives. 4l63pif.doc / 008 —_____ B7 _ V. Description of the Invention For a detailed description of the first embodiment, please refer to FIG. 1, which illustrates a schematic diagram of a device for an image receiving unit according to the first embodiment of the present invention. It includes a light source Π composed of several light emitters arranged in a row, and is installed at a position with a specific distance from the target surface of the original image P. The direction of travel of the light phll emitted by the light source 11 in the linear superimposing mode is at a specific angle θ (0 degrees < θ < 90 degrees) from the normal direction of the target surface of the image original P. The light source 11 is mounted on the light source disposition plate 11a and is erected at an appropriate position in the housing 15A of the receiving unit. The light phll emitted by the light source 11 passes through the glass plate 12 and is incident on the target surface of the image original P at a position corresponding to the focal point f of the cylindrical lens array 13 in the direction of the incident angle Θ. The superposition method and the direction with a reflection angle of Θ reflect the incident light to form the light rfll. In the traveling direction of the reflected light rfll, a cylindrical lens array 13 is arranged as an imaging device, and the reflected light rfll is aggregated at an imaging position at a conjugate distance T from the target surface to form an image. At the imaging position of the cylindrical lens array 13, a plurality of image receiving elements 14 are installed. The light receiving surface of the image receiving element 14 receives the light rfll focused by the cylindrical lens array 13 and converts the received optical signals. Is the corresponding electronic signal. These image receiving elements 14 are mounted on the element disposition plate Ha 'so that their light receiving surfaces and the target surface of the image original P are parallel to each other. The component placement plate 14a is directly fixed to the bottom side wall in the image receiving unit housing 15A so that it is parallel to the target surface. -------- ^ (¾ .-- * (Please read the precautions on the back before filling out this page}), ^ τ This paper is a scale of the hometown of Zhongzhouwei in Puzhou. (CNS) Λ4 Specification (2 ! 0 × 297mm) 4l63pif.doc / 008 A7 £ 7__ 5. Description of the Invention (Name) Please refer to Figure 1 'for comparison with the conventional image receiving unit shown in Figure 2. It is shown with a dotted line in Figure 1. It is the component arrangement board 4a and the housing 5 of Fig. 2. As shown in Fig. 1, 'the component arrangement board 14a is parallel to the side wall of the housing, so the height of the image receiving unit housing 15A of this embodiment is relatively conventional. The housing 5 used is low 'and the height difference is L1. In the image receiving unit of this embodiment, the' light PhU is emitted by the light source 11 in a linear superposition manner, and its traveling direction is normal to the image original p target surface normal The angle between the directions is Θ. The light PhU emitted by the light source passes through the glass plate 12 and is incident on the target surface of the image original P corresponding to the focal point of the cylindrical lens array 13 in the direction of the incident angle Θ. Position 'is reflected by the target surface, and the direction of reflection angle is 0 and the linear superposition method The reflected light rfl1 'has the largest reception of light rfll in the direction of the reflection angle of 0. After the reflected light rfn is focused by the cylindrical lens array 13, it passes through the cylindrical lens array 13 and the distance from the target surface is the same. The imaging position of the yoke distance T forms an image. The light rfll forming the image plane is received by the image receiving element and converted into a corresponding electronic signal ', and the electronic signal is transmitted to other systems for specific processing through the component configuration board 14a. For example, it is transmitted to an image processing system for image processing. As described above, in the first embodiment, 'because the component arrangement board 14a is installed in a manner parallel to the sides of the housing of the image receiving unit' and is fixed to On the bottom side wall in the case 15A, the height of the case of the image receiving unit can be reduced by L1. Second embodiment (please read the note f on the back before filling this page) Women's J-Consumer Co., Ltd. prints and prints the paper in the Chinese standard. ((, NS) Λ4 size (2 丨 0X297 mm). Zhushe Yinju A7 4 1 63pif.doc / 008 D- D / 5. Description of the invention (gas) Please refer to FIG. 4, which shows a device for an image receiving unit according to the second embodiment of the present invention Schematic diagram, in FIG. 4 the same components as in FIG. 1 are assigned the same reference numerals. The housing used in the image receiving unit in this embodiment has a width dimension larger than that of the housing 15A in FIG. 1. It is narrow. The arrangement of the image receiving element I4 is such that the direction of the light receiving surface is perpendicular to the direction of the target surface of the image original P; and the component arrangement plate 14a is installed and fixed perpendicular to the target surface and fixed. On the right side wall in the casing 15B of the image receiving unit. As shown in FIG. 4, since the component arrangement board Ha in the housing 15B of the receiving unit is installed at a right angle to the target surface, the width of the housing 15B is narrower than that of the conventional housing 5, The width gap is L2. Similar to Fig. 1, in the image receiving unit of this embodiment, the 'light phll' is emitted by the light source Π, and is reflected by the target surface to form a light rfll. The reflected light rfll is focused by the cylindrical lens array 13 'to form an image at the imaging position. The light rfll reflected by the target surface and forming an image is received by the image receiving element 14 and converted into a corresponding electronic signal. The electronic signal is then transmitted to other systems for specific processing through the component configuration board 14a, for example, it is transmitted to the image processing system for image processing. As described above, according to the second embodiment, the component placement plate 14a is mounted on the f side so that it is perpendicular to the target surface of the original image p, and is fixed to the right side wall in the outer wall 15B. Therefore, the housing of the image receiving unit The volume can be reduced.

筮 三 Implementation Dragon L _This paper size "China® Jiabiaoqi (('NS) Λ4 size (210X 297mm) (Please read the precautions on the back before filling this page))-A7 B7 4163pif.doc / 008 V. Description of the Invention (〖〇） Please refer to FIG. 5, which shows a schematic diagram of a device for an image receiving unit according to the third embodiment of the present invention. In FIG. 5, the same components as those in FIG. 1 are shown. The same reference numerals are used. The casing 15C used by the image receiving unit in this embodiment is narrower than the casing 15A in the first figure. The light source 11 in the figure also includes: The light emitting part lib used for generating light and the reflecting device 11c. The reflecting device 11c is, for example, a mirror surface for reflecting the light generated by the light emitting part lib to form an outwardly propagating light phll, and its traveling direction The angle between the direction normal to the target surface is Θ. The light source Η in the receiving unit is installed on the light source configuration plate 11a, and at the position where the light source is installed, the light source configuration plate 11a is installed perpendicular to the target surface And make the emitter part li The traveling direction of the light generated by b and the target surface of the original image P are parallel to each other, and the light source arrangement plate Ua is fixed on the left side wall in the housing 15C of the receiving unit. The image receiving element 14 is mounted on the element arrangement plate 14a As in the first figure, the component arrangement plate 14a is directly fixed to the bottom side wall of the housing 15C of the receiving unit in a manner parallel to the target surface. Therefore, the housing 15C of the receiving unit of this embodiment is used in a conventional manner. Compared with the case 5, the height can be reduced by L1, and the width can be reduced by 1 ^ 3. In the image receiving unit of this embodiment, the light generated by the light source 11 emits light. The light emitted by the device part lib is reflected by the mirror surface Uc of the air ejection device to form an outward light Phil. As in the first figure, the light phll emitted from the light source is reflected by the target surface to form the light rfll. The light rfll is focused by the cylindrical lens array 13 'at the imaging position (first read the note f on the back and then fill out this page) Order 4 — This paper is a long-size paper that is applicable to Chinese standard beer (CNS) M specifications (2丨 0X297 mm ) A7 B7 4l63pif.d〇c / 008 V. Invention description (< () Forms an image. The reflected light rfll that causes the image plane will be further converted into an electronic signal, and the electronic signal is transmitted to the other system by the component configuration board 14a Perform specific processing, for example: send it to an image processing system for image processing. &Amp; This embodiment is shown in FIG. 6, which shows a fourth example of an image receiving unit according to the present invention. The schematic diagram of the device, in Figure 6 is the same as the component in Figure 1, with the same reference numerals. The housing 15D used by the image receiving unit in this embodiment is compared with the housing 15A in Figure 1. The height dimension of its shell is lower. The image receiving element 14 is fixed to the curved portion 'of the element disposing plate 14b so that its light receiving surface faces the traveling direction of the reflected light rfll. The element configuration board 14b is formed by bending, and the image receiving element H is installed in the curved part of the component configuration board 14b. The angle between the curved part of the component configuration board 14b and the other parts of the component configuration board 14b is ( 180 degrees-Θ), so the height of the housing 15D of the receiving unit is lower than the conventional housing 5 ', and its height is reduced by L4. Similar to Fig. 1, in the image receiving unit of this embodiment, the light Phil emitted from the light source is reflected by the target surface 'to generate the reflected light rfll. The light rfll formed by the reflection from the target surface is focused by the cylindrical lens array 13 to form an image f at the imaging position. The reflected light rfll forming the image plane is received by the image receiving element 14 'and converted into a corresponding electronic signal. The electronic signal is then transmitted from the component configuration board 14b to an image processing system or other systems with similar functions to perform imaging ----; ---------- ΐτ ------ 0Λ. C Please read the weeping matter on the back before writing this page) The Ministry of Justice, the Associate Associate-T Consumer Cooperation, the printed paper ruler, and the Chinese National Standard Standard ((^ 5) 6 4 Specifications (2丨 〇 '; < 297 mm) 4 I 63pif.doc / 008 A7 B7 V. Description of the invention ((L) processing. In the first embodiment of FIG. 7K, the light receiving surface of the image receiving element 14 The angle between the direction of travel of the reflected light rfll is (90 ° -θ) 'I, so it is difficult to locate the light receiving surface of the image receiving element on the component configuration plate 143 in the first figure at a specific position. "In comparison, In the fourth embodiment, since the light receiving surface of the image receiving element 14 is adjusted to face the traveling direction of the reflected light rfll, the reflected light rfll can be ensured even when the position of the component configuration plate 14b is moved. To the light receiving surface, so you can easily adjust the position of the component configuration board and image receiving components. For an embodiment, please refer to FIG. 7, which shows a schematic diagram of a device of an image receiving unit according to the fifth embodiment of the present invention. The same components in FIG. 7 as those in FIG. 6 are the same. The housing 15E used by the image receiving unit in this embodiment has a narrow width. The image receiving element 14 is fixed to the curved portion of the component disposition plate 14b so that the light receiving surface and the light receiving surface thereof are reflected. The traveling directions of the light rays rfl1 are perpendicular to each other, and the component configuration board 14b is fixed on the right side wall in the housing 15E of the receiving unit. Therefore, the width of the housing 15E of the receiving unit is narrower than that used in the conventional technology. The width is reduced by L5. Similar to Fig. 1, in the image p-receiving unit of this embodiment, "the light Ph1 emitted by the light source 11 is reflected by the target surface" generates reflected light rfll. Reflected by the target surface The formed light rfl1, after focusing by the cylindrical lens array 13, 'forms an image at the imaging position. Forms the image flat • This paper scale puzzle k Chinese national standard? T " {(, NS) 210x297 mm --------------. 奵 ------ 0A. *-(Please read the precautions on the back before filling out this page) T " 榡 Jujube Bureau only -x Consumption Cooperative Printed A7 B7 4163pif.doc / 008 V. Description of the Invention (! （) ---------- x_ ^! •. ~ \ 靖 先 闲 靖 Note # | ^ Item 4 The reflected light rfll on the page j is received by the image receiving element 14 and converted into a corresponding electronic signal. The electronic signal is transmitted to other systems for specific processing through the component configuration board Wb, for example, it is transmitted to the image processing The system performs image processing. As in the fourth embodiment, in the fifth embodiment, it is very easy to adjust the position of the image receiving element 14 to ensure that the reflected light rfll can reach the light receiving surface. As described above, according to the fifth embodiment, the image receiving element I4 is installed on the curved portion of the element disposing plate 14b so that its light receiving surface faces the traveling direction of the reflected light rfll. Therefore, the image receiving element 14 can be easily and accurately positioned to ensure that the reflected light rfll can indeed be irradiated onto the light receiving surface. The invention is not limited to the different embodiments described above, and can be implemented in other different ways without departing from the spirit and scope of the invention. Possible changes include the following: (a) The light source configuration board 11a, component configuration board 14a or 14b can be installed in the manner described above, or it can be fixed by a supporting device in the receiving unit.

(b) The housing 15A, 15B, 15C, 15D, and 15E of the image receiving unit. In the Ministry of Economic Affairs, the Λ 榡 rate dog β T, the print of the consumer cooperative can be constructed from a single structure, of which the glass plate is part 12 You can also use light-transmitting plastic or other materials with light-transmitting properties. (c) The third embodiment can be achieved by combining the first, second, fourth, and fifth embodiments. As mentioned above, according to the image receiving unit of the present invention, the imaging device is installed at an angle to maximize the amount of reflected light, and the paper is installed in accordance with China's national standard (('NS) A4 specification). (210X297mm) 5. Description of the invention (called) The component configuration board with the image receiving element is set up in parallel with the target surface or perpendicular to the target surface, so the volume required for the housing of the receiving unit can be reduced. Clear and vivid images can be obtained. Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make it without departing from the spirit and scope of the present invention. Various changes and retouching, so the protection scope of the present invention shall be determined by the scope of the attached patent application. (Please read the precautions on the back before filling this page)

、 1T -4r Printed by the Bureau of Div. Of the Ministry of Justice, nJ. Xiaoru Cooperative Co., Ltd. The size of this paper is applicable to the national standard of China (('NS) Λ4) (210X 297 mm)

Claims (1)

Printed by the Consumers ’Cooperative of the Ministry of Economic Affairs of the Ministry of Economic Affairs *. 4163pit'.doc / 008 D8 VI. Patent application scope 1. An image receiving unit, which at least includes: — a light source for emitting a light to illuminate an object A target table v-plane, and make the incident direction of the light and the normal direction of the target surface ^ a certain angle: 'an imaging device, at an installation angle _ erected on one of the reflected from the target surface _ reflected light The position receiving the largest amount is used to form an image plane at an imaging position; a plurality of image receiving elements are used to receive the reflected light green converged at the imaging position and convert the reflected light into an electronic signal; 'An enclosure for mounting the light, the imaging device, and the image receiving units; and a' V-i; configuration board for mounting the image receiving elements' is arranged in the enclosure, and is connected with the The target surfaces are parallel. 2. The image receiving unit as described in item 1 of the scope of the patent application, in which the 3 pieces of the hail plate cymbals equipped with Yin image fixation rolls are formed by bending, so that every -T of these images are connected 1. The receiving surface of the line is perpendicular to the traveling direction of Xue Fangduo's rays. 3. The image receiving unit according to item 1 of the scope of patent application, further comprising: a light source configuration board for installing the light source 1 disposed on the housing and also perpendicular to the target surface, and making the light source The light emitted is parallel to the ... —i _ target surface; and a reflector that reflects the light at the specific angle J5 4. The image access unit described in item 2 of the scope of the patent application, where 、 This paper is based on the Chinese National Standard (CNS) A4 specification (210X297 mm) -------- ύ ------? Τ ------ A ', (US reading potential Please fill in this page if you want to add the above $) 4163pit'.doc / 008 A8 B8 C8 D8 Ministry of Economic Affairs t Central Government Bureau Bureau Λ Industrial Consumer Cooperative Co., Ltd. Printing oxygen 6. The scope of patent application also includes: a light source configuration board for installation The light source is 'arranged in the housing and perpendicular to the target surface' and causes the light emitted by the light source to line with the · · * X. The target surface f lines with each other; and The angle reflects the light. 5. An image receiving unit, which at least includes: & a light source for emitting a light to the target surface, and making the direction of incidence of the light and the normal direction of the target surface a (-r "Specific angle" V An imaging device is erected at an installation angle at a position where the maximum amount of flyback I-line fishing reflected by the target surface is received to form an image plane at an image position; a plurality of image receiving elements * Use 'to receive the reflected light converged at the imaging position, and convert the reflected light into an electronic signal; <, r-a shell for mounting the light. The imaging device and the shadows. Image connection I ^ 收 单 #; and ~ r component configuration board for mounting the image receiving components, arranged in the housing, and at right angles to the target surface. '' '— —-6. Such as The image receiving unit described in item 5 of the scope of the patent application, wherein the part of the component configuration board on which the image receiving elements are installed is curved. Forming, so that each of these image receiving elements can receive the light. Receiving surface Travel with that reflected light It is at a right angle. _ 7. The image receiving unit described in item 5 of the scope of patent application, which further includes: --------- Q ------ ^ ------ C ( $ 读 ^ · 面 的 注 $ item and fill in this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) A8 B8 C8 D8 390039 4163pif.doc / 008 6. Application scope of patents-Light source configuration A plate for mounting the light source "disposed in the housing at a right angle to the target surface and making the light emitted by the light source ^ the light parallel to the target surface; and a reflector reflecting at the specific angle 8. The light receiving unit as described in item 6 of the scope of patent application, which further includes: '. A light source configuration board for installing the light source, arranged in the housing / and the oxygen target surface At a right angle, the light emitted by the light source is parallel to the target surface, and a reflector, and the reflector reflects the light at the specific angle. (^^ Read service surface note ^^ item again (Fill in this page) Printed by βζ 工 consuming cooperative of the Central Rubbing Bureau of the Ministry of Economic Affairs 20 This paper is applicable to China Home Standard (CNS) Α4 said grid (210X297 mm)