JPH07230523A - Optical information reader - Google Patents

Abstract

PURPOSE:To read out a two-dimensional image by a line senor without especially preparing optical information other than the two-dimensional image. CONSTITUTION:In the constitution of this bar code reader 11 for forming an image of reflected light from an object 12 to be read out on a CCD line sensor 15 through an image forming lens 13, a mirror 14 and a mirror driving means 16 prepared for forming an image of reflected light corresponding to the relative movement of the reader 11 to the object 12 on the sensor 15 are arranged between the object 12 and the lens 13. When angular information from the mirror 14 is added to an electric signal for one line outputted from the sensor 15, which position of a two-dimensional image corresponds to the electric signal of one line is recognized. Namely the two-dimensional image can be read out by the line sensor 15 without especially preparing optical information other than the two-dimensional image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical information reader for reading information such as characters and symbols by using a line sensor composed of photoelectric conversion elements.

[0002]

2. Description of the Related Art In recent years, in the distribution industry and the like, a system called a bar code handy terminal has been rapidly used as a device useful for product management and sales management in order to improve management efficiency and differentiate from other stores. It is popular. And
With this system, bar code labels printed or affixed to slips or parcels are read, and necessary data is accurately and rapidly taken in and processed. However, in the conventional device described above, an inexpensive line sensor in which photoelectric conversion elements are arranged in one line is used as an image sensor, and therefore, it is impossible to read a two-dimensional information such as a signature or a receipt stamp. There is a problem.

Therefore, as disclosed in Japanese Unexamined Patent Publication No. 5-54152, a timing mark is provided near the two-dimensional image, and the movement amount of the reading device is detected based on this timing mark. 2 based on the amount of movement detected
A device for reading a three-dimensional image has been proposed.

[0004]

However, in the above-mentioned conventional one, a two-dimensional image to be read, such as printing a timing mark in the vicinity of the two-dimensional image in advance or placing an article on which the timing mark is printed, is used. Besides, there is a problem that optical information called a timing mark must be set.

Therefore, the present invention has been made in view of the above problems, and a bar code label and a two-dimensional image are obtained by using a line sensor without providing optical information other than the two-dimensional image such as a timing mark. It is intended to be read.

[0006]

An optical information reader according to claim 1, which is made to achieve the above object, collects reflected light from a bar code label to be read,
An image forming means for forming an image of the condensed reflected light at a predetermined reading position; and an image pickup means arranged at the reading position, in which photoelectric conversion elements for converting the reflected light into electric signals are arranged in a line.
An optical signal including a bar code label reading means for binarizing the electric signal based on the reflected light output from the image pickup means, decoding the binarized signal, and reading the bar code label. When the reading object is a two-dimensional image in the dynamic information reading device, a variable reflected light corresponding to when the optical information reading device is moved relative to the reading object is coupled to the imaging means. Fluctuating reflected light image forming means for forming an image, movement amount output means for outputting a movement amount signal as a movement amount signal when the optical information reading device is moved relative to the reading target, The two-dimensional image is generated and read based on a signal based on the fluctuation reflected light converted into an electric signal by the image pickup means and a movement amount signal output from the movement amount output means. It is to employ a two-dimensional image reading means that.

Further, the optical information reader according to a fifth aspect of the present invention focuses the reflected light from the bar code label to be read and forms an image of the collected reflected light at a predetermined reading position. Means, an image pickup means arranged in the reading position, in which photoelectric conversion elements for converting the reflected light into an electric signal are arranged in a line, and an electric signal based on the reflected light outputted from the image pickup means is binary. In the optical information reading device including a barcode label reading means for reading the barcode label by performing a binarization process and a decoding process on the binarized signal, the reading target is a two-dimensional image. In one case, when the optical information reading device is moved relative to the reading target, a movement amount output means for outputting a movement amount at the time of movement as a movement amount signal, and the imaging means. Therefore the is converted into an electrical signal 2
The two-dimensional image reading means for generating and reading the two-dimensional image based on the signal based on the three-dimensional image and the movement amount signal output from the movement amount output means is adopted inside the casing.

[0008]

In the optical information reading apparatus according to the first aspect of the present invention configured as described above, when the reading object is a two-dimensional image, the fluctuating reflected light image forming means includes the optical information reading apparatus. Is moved relative to the object to be read, an image of fluctuating reflected light corresponding to the object is imaged on the image pickup means, and the movement amount output means moves the optical information reading device relative to the object to be read. The corresponding movement amount is output as a movement amount signal. Further, the two-dimensional image reading means generates a two-dimensional image based on the signal based on the variable reflected light converted into the electric signal by the image pickup means and the movement amount signal output from the movement amount output means. At this time, the two-dimensional image reading unit adds information on the amount of movement corresponding to the position information to the image signal for one column output from the image capturing unit in which the photoelectric conversion elements are arranged in one column. ,
A two-dimensional image is being generated. The two-dimensional image reading means reads the generated two-dimensional image.

That is, in the optical information reader according to the first aspect of the present invention, there is an excellent effect that a two-dimensional image can be read from the image pickup means in which the photoelectric conversion elements are arranged in a line, and fluctuations occur. By the reflected light image forming means,
Since the reading can be performed without moving the device, a reading error due to the moving method is unlikely to occur, and an error in operation can be prevented.

Next, in the optical information reader according to the fifth aspect, when the read object is a two-dimensional image, the movement amount output means moves the optical information reader relatively to the read object. When this is done, this moved amount of movement is output as a movement amount signal, and the two-dimensional image reading means further outputs a signal converted into an electric signal by the image pickup means and a movement amount signal output from the movement amount output means. Based on the above, a two-dimensional image is generated and read. At this time, all the respective means are housed in the casing, and the image pickup means in which the photoelectric conversion elements are arranged in one line without providing a structure other than an optical information reading device such as a timing mark as in the conventional case. There is an excellent effect that a two-dimensional image can be read by using.

[0011]

The present invention will be described below based on the embodiments shown in the drawings. In this embodiment, a case where the present invention is applied to a bar code reader for reading a two-dimensional image having optical information, a bar code label and the like will be described. [First Embodiment] FIG. 1 is a block diagram showing a first embodiment of the present invention.

In FIG. 1A, the bar code reader 11 is roughly classified into a bar code label or a bar code label 2.
An optical system that irradiates a reading object 12 that is a three-dimensional image with light and receives reflected light generated by the irradiation light, and reads optical information content based on the reflected light obtained from this optical system and controls the optical system. Electronic control unit (hereinafter referred to as ECU
17)) and a casing that houses the optical system and the electronic control unit.

More specifically, the above-described optical system collects the irradiation light (not shown) for irradiating the object 12 to be read and the reflected light from the object 12 to be read, and determines a predetermined value. An imaging lens 13 for forming an image at the reading position,
It is arranged between the imaging lens 13 and the reading object 12,
An image forming lens 13 is formed by bending the reflected light from the reading target 12.
CCD line sensor which is a one-dimensional photoelectric converter that receives the reflected light imaged at a predetermined reading position by the mirror 14 that guides the light to the image forming lens 13 and outputs an electric signal according to the received reflected light. It is composed of 15 and. Further, in this bar coder reader 11, the mirror 1
A mirror drive means 16 for rotating the CCD 4 at a predetermined angle is provided. The mirror drive means 16 rotates the mirror 14 at a predetermined angle, whereby the CCD line sensor 1
The reflected light imaged at 5 scans the bar code reader 11 (the bar code reader 11
Is moved at a predetermined speed), the same reflected light as the reflected light is imaged. That is, the entire area information of the two-dimensional image written on the reading target 12 can be imaged on the CCD line sensor 15 without moving the barcode reader 11.

Next, referring to FIG. 1B, the above-mentioned EC
The configuration of U17 will be described below. This ECU 17
Mainly reads optical information from an electric signal output from the CCD line sensor 15, and a binarization circuit 17a for binarizing the electric signal output from the CCD line sensor 15 and a binarization circuit. A bar code decoding unit 17b that decodes a signal binarized by 17a based on predetermined bar code data, and a CCD line sensor 1
5, an A / D conversion circuit 17c for converting the electric signal (analog signal) output from the digital signal into a digital signal, the digital signal from the A / D conversion circuit 17c, and the mirror driving means 1
6, an image generation unit 17d that generates an image from the angle information of the mirror 14 obtained from 6 and the configuration units 17a to 17 respectively.
The CPU 17e controls d based on a predetermined process.

Next, the operation of the above configuration will be described based on the flowchart shown in FIG. 2 shows the CPU 1
7e shows a processing operation performed in 7e. First, in step 110, a signal from an operation switch (not shown) or the like is fetched, and a reading mode (two-dimensional image / bar code label) is selected according to the fetched signal. At this time, if the two-dimensional image reading is selected, the process proceeds to step 140, and if the barcode label reading is selected, the process proceeds to step 120.

In step 120, since the bar code label reading mode is selected, a predetermined signal is input to the mirror driving means 16 and the mirror 14 is set at an optimum angle for reading the bar code label. To do. The reflected light from the bar code label is received by the CCD line sensor 15 with the mirror 14 set at an optimum angle. At this time, in step 130, the binarizing circuit 17a binarizes the electric signal output from the CCD line sensor 15, and the bar code decoding section 17b decodes the binarized signal. After processing, the CPU 17e inputs the decoded signal. Then, the CPU 17e recognizes the input signal as optical information based on the barcode label, and ends the processing operation.

On the other hand, in step 140, a predetermined signal is input to the mirror driving means 16 in response to the selection of the two-dimensional image reading mode in step 110,
The mirror 14 is set to a preset initial state. Next, in step 150, the current mirror 14
A signal for transmitting the angle information of 1 to the image generation unit 17d is input to the mirror driving unit 16.

Further, in step 160, CC
The A / D conversion circuit 17c converts the electric signal (analog signal) output from the D line sensor 15 into a digital signal, and the converted digital signal is captured by the image generation unit 17d. At this time, in the image generation unit 17d, the angle information of the mirror 14 is also taken in together, and the image information for one line output from the CCD line sensor 15 and the angle information of the mirror 14 are held in a state of being matched with each other. To do. That is, in the image generation unit 17d, the image information for one line is added with the address information (information indicating the position of one line in the entire two-dimensional image).

Then, in step 170, for example, it is determined based on the angle information of the mirror 14 whether or not the two-dimensional image has been read over the entire range. Here, if the reading is not performed over the entire range, the process proceeds to step 180, and a signal for rotating the mirror 14 by a constant angle is input to the mirror driving means 16. Then, the process returns to step 150 again, and steps 150 to 180 are performed until it is determined in step 170 that the reading of the entire range is completed.
Processing is repeated, and when it is determined that reading of the entire range is completed, the process proceeds to step 190.

Next, at step 190, an image of the entire two-dimensional image is generated from the information (image information for one line and angle information of the mirror 14) accumulated in the image generating section 17d by the processing at step 160. . At this time,
As shown in FIG. 1, the image formed on the CCD line sensor 15 from the reading object 12 has a unit length that changes depending on the rotation angle of the mirror 14. That is, even if the length shown on the reading target 12 is the same, the length of the image formed on the CCD line sensor 15 changes depending on the rotation angle of the mirror 14, and the image generation unit 17d takes this into consideration. C based on the rotation angle information
An image is generated by changing the length of the image formed on the CD line sensor 15. Then, the CPU 17e captures the generated image signal, recognizes the captured image signal as optical information of the reading target 12, and ends the processing operation.

From the above, in the first embodiment, the angle of the mirror 14 is changed by a predetermined amount, and the angle information and the optical information of one line output from the CCD line sensor 15 when the angle is changed. Is obtained, and the angle information and the optical information of one line are made to coincide with each other, and the above processing is performed over all the lines corresponding to the two-dimensional image to generate a two-dimensional image. That is, it is possible to read a two-dimensional image using a one-dimensional line sensor.

In the first embodiment, the image forming lens 13 corresponds to the image forming means, and the CCD line sensor 15 is used.
Corresponds to the image pickup unit, the bar code decoding unit 17b and the CPU 17e correspond to the bar code label reading unit, the mirror 14 and the mirror driving unit 16 correspond to the variable reflection light image forming unit, and the image generation unit 17d and the CPU 17e are 2 It corresponds to a three-dimensional image reading means. [Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIG.

In FIG. 3A, the bar code reader 21 according to the second embodiment has a C code as compared with the first embodiment.
The CCD line sensor moving means 22 for moving the CD line sensor 15 is installed, and the mirror 14
Is different from the point that is fixed, but is the same in other configurations. Also, FIG.
In (b), comparing the first and second embodiments,
From the mirror driving means 16 to the CCD line sensor moving means 2
The difference is that the number is changed to 2, but the other configurations are the same.

The operation of the bar code reader 21 of the second embodiment will be described with reference to FIG. First, a reading mode (two-dimensional image / bar code label) is selected according to a signal from an operation switch or the like (step 210). At this time, if the bar code reading mode is determined, the CCD line sensor moving means 22 sets the CCD line sensor 15 at the bar code reading position (step 220), and then the output of the CCD line sensor 15 is determined. The barcode is decoded by the barcode decoding unit 23b and the barcode is read (step 23).
0).

If the two-dimensional image reading mode is determined, the CCD line sensor 15 is set to the initial position (step 240), and the CCD line sensor 15 is set.
Position and the A / D conversion output of the CCD line sensor 15 are fetched into the image generation unit 23d (steps 250 and 26).
0). Next, the CCD line sensor 15 is changed by a certain amount (step 280), and the A of the CCD line sensor 15 is again set.
The / D conversion output is captured and this operation is performed over the entire reading range.

Then, the import is completed (step 27).
0) Then, A / of the CCD line sensor 15 that has been taken in
A captured image is generated from the D conversion output and the position of the CCD line sensor 15 (step 290). [Third Embodiment] Next, a third embodiment of the present invention will be described with reference to FIGS.

The bar code reader 3 according to the third embodiment.
As shown in FIGS. 5A and 5B, 1 is different in configuration from the above-described embodiment in that an acceleration detecting means 32 for detecting an acceleration for scanning an image is installed. The other configurations are the same. Therefore,
The operation of the bar code reader 31 of the third embodiment will be described below. First, a reading mode (two-dimensional image / bar code label) is selected according to a signal from an operation switch or the like (step 310). At this time, if the bar code reading mode is determined, the CCD line sensor 15
The barcode is decoded by the barcode decoding unit 33b on the basis of the output of (1) and the barcode is read (step 320).

If the two-dimensional image reading mode is determined, a signal for starting the image reading operation is input to the acceleration detecting means 32 (step 330), and the acceleration detecting means 32 from the start to the end of the reading operation. Acceleration information obtained and elapsed time, A with CCD line sensor 15
The capture of the / D converted output into the image generation unit 33d (steps 340, 350, 360) is repeated.

Then, the import is completed (step 37).
0) Then, the moving amount of the reading line is calculated from the taken acceleration information and the elapsed time (step 380), and the calculated moving amount of the reading line and the taken A / D conversion output from the CCD line sensor 15 are calculated. An image is generated (step 390). [Fourth Embodiment] Next, a fourth embodiment of the present invention will be described with reference to FIGS.

The bar code reader 4 according to the fourth embodiment.
As shown in FIGS. 7 (a) and 7 (b), reference numeral 1 designates a roller 42 which is in contact with the reading surface and is rotated by an image scanning operation, as compared with the above-described embodiment, and a roller 42.
The configuration is different in that a roller rotation angle detection means 43 for detecting the rotation angle of No. 2 is installed, but the other configurations are almost the same.

Therefore, the operation of the bar code reader 41 of the fourth embodiment will be described below. First, according to the signal from the operation switch, etc., the reading mode (two-dimensional image
A bar code label) is selected (step 410). At this time, if the barcode reading mode is determined,
Based on the output of the CCD line sensor 15, the bar code decoding unit 44b decodes the bar code, reads the bar code (step 420), and ends the processing operation.

If the two-dimensional image reading mode is determined, a signal for starting the image reading operation is input to the roller rotation angle detecting means 43 (step 430),
From the start to the end of the reading operation, the loading of the roller rotation angle obtained by the roller rotation angle detection means 43 and the A / D conversion output of the CCD line sensor 15 into the image generation unit 44d is repeated (steps 440 and 450).

Then, the import is completed (step 46).
Then, the moving amount of the reading line is calculated from the taken-in roller rotation angle information (step 470), and the image is obtained from the calculated moving amount of the reading line and the taken A / D conversion output from the CCD line sensor 15. Generate (step 480). [Fifth Embodiment] Next, a fifth embodiment of the present invention will be described with reference to FIGS.

The bar code reader 5 according to the fifth embodiment.
As shown in FIGS. 9 (a) and 9 (b), 1 is a distance reference plate 52 serving as a reference for measuring the moving distance when scanning the reading target 2 as compared with the above-described embodiment, and The structure is different in that a distance measuring unit 53 that measures the distance from the distance reference plate 52 is installed, but the other structures are almost the same.

Therefore, the operation of the bar code reader 51 of the sixth embodiment will be described below. First, a reading mode (two-dimensional image / bar code label) is selected according to a signal from an operation switch or the like (step 510).
At this time, if the bar code reading mode is determined, the bar code decoding unit 54b decodes based on the output of the CCD line sensor 15, the bar code is read (step 520), and the processing operation ends.

When the two-dimensional image reading mode is determined, the signal for starting the image reading operation is input to the distance measuring unit 53 (step 530), and the distance measuring unit 53 is operated from the start to the end of the reading operation. The obtained distance information to the distance reference plate 52 and the A / D conversion output of the CCD line sensor 15 are taken into the image generation unit 54d (step 54).
0, 550) is repeated.

Then, the import is completed (step 56).
Then, an image is generated from the captured distance information and the A / D conversion output from the CCD line sensor 15 (step 570). [Sixth Embodiment] Next, a sixth embodiment of the present invention will be described with reference to FIGS.

The bar code reader 6 according to the sixth embodiment.
As shown in FIGS. 11A and 11B, 1 is a distance reference plate 62 serving as a reference for measuring a moving distance when the reading target 12 is scanned, as compared with the above-described embodiment, and One end is fixed to the distance reference plate 62 and is used for measuring the distance between the distance reference plate 62 and the bar code reader 61, and a thread 63 attached to the other end of the thread 63.
The configuration is different in that a bobbin 64 around which the bobbin is wound and a bobbin rotation angle detection means 65 that detects the rotation angle of the bobbin 64 are installed, but the other configurations are almost the same.
Further, as shown in FIG. 11B, the rotation angle information detected by the bobbin rotation angle detection means 65 is input to the image generation unit 66d.

The operation of the bar code reader 61 of the seventh embodiment will be described below. First, according to the signal from the operation switch, etc., the reading mode (two-dimensional image
A bar code label) is selected (step 610). At this time, if the barcode reading mode is determined,
Based on the output of the CCD line sensor 15, the bar code decoding unit 66b decodes the bar code and reads the bar code (step 620), thus ending the processing operation.

When the two-dimensional image reading mode is determined, a signal for starting the image reading operation is input to the spool winding angle detecting means 65 (step 630), and the spool is rotated from the start to the end of the reading operation. Rotation angle information of the bobbin 64 obtained by the angle detection means 65 and the CCD line sensor 1
The acquisition of the A / D converted output of No. 5 into the image generation unit 66d (steps 640 and 650) is repeated.

Then, the import is completed (step 66).
0) Then, the moving amount of the reading line is calculated from the taken-in rotation angle information of the bobbin 64 (step 670), and from the calculated moving amount of the reading line and the taken A / D conversion output from the CCD line sensor 15. An image is generated (step 680). [Seventh Embodiment] Next, a seventh embodiment of the present invention will be described with reference to FIGS.

The bar code reader 7 according to the seventh embodiment.
As shown in FIGS. 13 (a) and 13 (b), 1 is a movable portion 72 for moving the reading line by moving the object 12 to be scanned, as compared with the above-described embodiment.
The structure is different in that a movable part driving means 73 for changing the angle of the movable part 72 is installed, but the other structures are almost the same. Further, as shown in FIG. 13B, the movable part angle information detected by the movable part drive means 73 is input to the image generation part 74d.

Therefore, the operation of the bar code reader 71 of the seventh embodiment will be described below. First, according to the signal from the operation switch, etc., the reading mode (two-dimensional image
A bar code label) is selected (step 710). At this time, if the barcode reading mode is determined,
Based on the output of the CCD line sensor 15, the bar code decoding unit 74b decodes the bar code, reads the bar code (step 720), and ends the processing operation.

When the two-dimensional image reading mode is determined, the movable part 72 is set to the angle for starting the two-dimensional image reading, and the angle of the movable part and the A of the CCD line sensor 15 are set.
The / D conversion output is fetched into the image generation unit 74d. Next, the movable part 72 is rotated by a certain angle, and the angle of the movable part 72 and C
The A / D conversion output of the CD line sensor 15 is fetched. This operation is performed over the entire reading range (step 74).
0, 750, 770).

Then, the import is completed (step 76).
Then, the moving amount of the reading line is calculated from the rotation angle information of the movable portion (step 780), and an image is formed from the calculated moving amount of the reading line and the A / D conversion output from the CCD line sensor 15 that has been taken in. Generate (Step 7)
90).

[Brief description of drawings]

FIG. 1 is a block diagram and a block diagram showing a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 3 is a configuration diagram and a block configuration diagram showing a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 5 is a block diagram and a block diagram showing a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 7 is a configuration diagram and a block configuration diagram showing a fourth embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the fourth embodiment of the present invention.

FIG. 9 is a configuration diagram and a block configuration diagram showing a fifth embodiment of the present invention.

FIG. 10 is a flowchart showing the operation of the fifth embodiment of the present invention.

FIG. 11 is a block diagram and a block diagram showing a sixth embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of the sixth embodiment of the present invention.

FIG. 13 is a block diagram and a block diagram showing a seventh embodiment of the present invention.

FIG. 14 is a flowchart showing the operation of the seventh embodiment of the present invention.

[Explanation of symbols]

 13 Imaging Lens 14 Mirror 15 CCD Line Sensor 16 Mirror Driving Means 17 ECU

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Watanabe 1-1, Showa-cho, Kariya city, Aichi prefecture Nihon Denso Co., Ltd. (72) Inventor Kimi Kitazumi 1-1-1, Showa-cho, Kariya city, Aichi prefecture Nidec Within the corporation

Claims (7)

[Claims] 1. An image forming means for collecting reflected light from a bar code label to be read and forming an image of the collected reflected light at a predetermined reading position, the image forming means being provided at the reading position. An image pickup unit in which photoelectric conversion elements for converting the reflected light into an electric signal are arranged in a line, and an electric signal based on the reflected light outputted from the image pickup unit is binarized, and the binarized signal is obtained. And a bar code label reading means for decoding the bar code label, wherein the optical information reader is the object to be read when the object to be read is a two-dimensional image. A variable reflection light image forming means for forming an image of the variable reflection light corresponding to the relative movement with respect to the image pickup means, and the optical information reading device relative to the reading target. And let To a movement amount output means for outputting a movement amount signal corresponding to the movement amount signal, a signal based on the variable reflected light converted into an electric signal by the image pickup means, and a movement amount signal output from the movement amount output means. And a two-dimensional image reading means for generating and reading the two-dimensional image based on the optical information reading device. 2. The optical information reading apparatus according to claim 1, wherein the fluctuating reflected light image forming means has a structure in which a reflecting member installed between the reading target and the image forming means rotates. An optical information reader characterized by. 3. The optical information reader according to claim 1, wherein the fluctuating reflection light image forming unit is configured such that the image pickup unit moves in a predetermined direction. 4. The optical information reading apparatus according to claim 1, wherein the fluctuating reflected light image forming means maintains the positional relationship between the image forming means and the image forming means. An optical information reader characterized in that the image pickup means and the image pickup means are movable. 5. An image forming means for collecting reflected light from a bar code label to be read and forming an image of the collected reflected light at a predetermined reading position, the image forming means being provided at the reading position. An image pickup unit in which photoelectric conversion elements for converting the reflected light into an electric signal are arranged in a line, and an electric signal based on the reflected light outputted from the image pickup unit is binarized, and the binarized signal is obtained. An optical information reading device provided with a barcode label reading means for decoding the barcode label and reading the barcode label in a casing, wherein when the reading target is a two-dimensional image, the optical information reading device is A movement amount output means for outputting a movement amount when the movement is performed relative to the reading object as a movement amount signal, and the secondary converted into an electric signal by the imaging means. A two-dimensional image reading unit for generating and reading the two-dimensional image based on a signal based on an image and a movement amount signal output from the movement amount output unit; and a two-dimensional image reading unit inside the casing. Optical information reader. 6. The optical information reading device according to claim 5, wherein the movement amount output means detects an acceleration when the optical information reading device is moved relative to the reading target. Acceleration detection means; movement amount detection means for detecting a movement time when the optical information reading device is moved relative to the reading target; acceleration detected by the acceleration detection means; and movement amount detection An optical information reading device characterized in that a moving amount is calculated based on the moving time detected by the means, and the calculated moving amount is output as the moving amount signal. 7. The optical information reading device according to claim 5, wherein the movement amount output unit is configured to move the optical information reading device relative to the reading target when the reading target is read. And a roller rotating by this contact, a roller rotation angle detecting means for detecting the rotation angle of the roller, and a movement amount calculated from the rotation angle obtained by the roller rotation angle detecting means. The optical information reading device is characterized in that the moving amount is output as the moving amount signal.