JP5967325B1 - Stationary information code reader - Google Patents

Abstract

An object of the present invention is to enable reading on the mounting surface as well as reading by gripping with a hand. A configuration is provided in which a reading operation is easy to perform, and when the apparatus is held and used, the reading operation using the operation unit is easily performed. A reading apparatus 1 defines an imaging unit 23 and a visual field range that can be imaged by the imaging unit 23 inside a case 3, and an information code C is arranged outside the case 3 in the visual field range. When the information code C is imaged by the imaging unit 23 and the imaging unit 27 that forms an image of the information code C on the imaging unit 23, the captured image of the information code C is analyzed and read processing is performed. And a reading unit. An operation unit 100 is provided on the lower surface of the case 3 so as to be operable from the outside of the case 3. [Selection] Figure 11

Description

  The present invention relates to a stationary information code reader.

  Currently, information code readers that read information codes such as barcodes and QR codes (registered trademark) are widely provided, and stationary readers are also used in stores and offices. This mounting type information code reader is generally provided with a reading opening in a case, and an imaging unit including a light receiving sensor and a field of view range that can be imaged by the imaging unit are defined inside the case. An imaging lens is provided. When the information code is deceived toward the reading port within the field of view set outside the case, the information code is picked up by the image pickup unit and decoded by a known decoding method. .

JP-A-8-123891

  By the way, it is not always desirable to use the information code reading device that is supposed to be mounted on the mounting surface, and it is not always desirable to use the information code reading device mounted on the mounting surface. Sometimes it is better. For example, in a case where a reading object is arranged on the mounting surface and the reading object is to be read without moving from the mounting surface as much as possible, rather than holding the reading object and holding it on the reading device, In some cases, it is better to read the reading device side toward the reading object. Alternatively, in a case where there are a large number of reading objects on the mounting surface, it may be better to hold the reading device and read in order than to read all the reading objects sequentially. Further, these are merely examples, and various cases that should be grasped and used by a reading apparatus that is scheduled to be placed on the placement surface are assumed.

  However, the existing placement-type reading device has a configuration that is not assumed to be held and used by the user, and does not take into account any buttons necessary for the holding operation. For this reason, in this type of reading apparatus, the user does not dare to perform a gripping operation, and the convenience of the user is impaired in this respect.

  The present invention has been made in order to solve the above-described problem, and is configured to be able to read on the mounting surface and read on the mounting surface. Provide a configuration that facilitates reading work such as placing an information code on the top side when placed and used, and that facilitates reading-related work using the operation unit when holding and using the device. With the goal.

The first invention is an information code reading device that can be used by being placed on a placement surface,
On one side in the predetermined vertical direction, an upper surface portion on which a reading port serving as a light entrance / exit is formed is provided, and on the other side in the vertical direction, the placement surface side is placed when placing on the placement surface. A box-like case provided with a lower surface facing the
An imaging unit housed in the case;
An imaging unit that defines a visual field range that can be imaged by the imaging unit, and that forms an image of the information code on the imaging unit when an information code is arranged in the visual field range outside the case;
A reading unit that analyzes a captured image of the information code and performs a reading process when an information code is imaged by the imaging unit;
In the lower surface portion, an operation portion arranged to be operable from the outside of the case;
With
The case is formed such that a distance between the upper surface portion and the lower surface portion is shorter than a short side of the upper surface portion ,
The information code reading control mode performed by the imaging unit and the reading unit is set to a first mode in which the information code is read on condition that a predetermined operation is performed on the operation unit, and to the operation unit. A mode switching unit that can be switched to a second mode in which an information code is read without performing a predetermined operation is provided .

A second invention is an information code reading device which can be used by being placed on a placement surface,
On one side in the predetermined vertical direction, an upper surface portion on which a reading port serving as a light entrance / exit is formed is provided, and on the other side in the vertical direction, the placement surface side is placed when placing on the placement surface. A box-like case provided with a lower surface facing the
An imaging unit housed in the case;
An imaging unit that defines a visual field range that can be imaged by the imaging unit, and that forms an image of the information code on the imaging unit when an information code is arranged in the visual field range outside the case;
A reading unit that analyzes a captured image of the information code and performs a reading process when an information code is imaged by the imaging unit;
It is arranged so that an operation from the outside of the case can be performed at a position other than the upper surface portion in the outer surface portion of the case, and at least one of the start conditions of the imaging process by the imaging unit or the reading process by the reading unit; An operation unit configured as a trigger button,
With
The case is formed such that a distance between the upper surface portion and the lower surface portion is shorter than a short side of the upper surface portion ,
The information code reading control mode performed by the imaging unit and the reading unit is set to a first mode in which the information code is read on condition that a predetermined operation is performed on the operation unit, and to the operation unit. A mode switching unit that can be switched to a second mode in which an information code is read without performing a predetermined operation is provided .

  According to the first aspect of the present invention, it is possible to perform reading after being placed on the placement surface and reading while being held by hand. For example, when placed on the placement surface and used, the reading port is disposed on the upper side, so that it is easy to perform a reading operation such as placing an information code on the upper surface side. In addition, since the operation unit is arranged on the lower surface of the case so that the operation from the outside of the case is possible, when the device is gripped and used, the operation unit can be operated while gripping, Reading-related work using the operation unit is facilitated. For example, when reading-related work is performed with the reading port facing vertically downward, it becomes easier to operate with a finger on the operation unit arranged on the vertical upper side, so reading-related work associated with the operation unit is efficient. Can be done. The same effect can be obtained in other gripping postures.

According to the second aspect of the present invention, the reading can be performed after being placed on the placement surface and the reading can be performed after being held by the hand. For example, when placed on the placement surface and used, the reading port is disposed on the upper side, so that it is easy to perform a reading operation such as placing an information code on the upper surface side.
In addition, a trigger button is arranged so that an operation from the outside of the case can be performed at a position other than the upper surface portion on the outer surface portion of the case. It is comprised so that it may become a starting condition. For this reason, when the apparatus is gripped and used, a trigger operation can be performed while gripping, and at least one of the imaging process and the reading process can be smoothly started by a trigger operation on the operation unit.
In particular, in the first and second aspects of the invention, the information code reading control mode performed by the imaging unit and the reading unit is performed on condition that a predetermined operation is performed on the operation unit. A mode switching unit that can be switched between the first mode and the second mode in which the information code is read even if a predetermined operation is not performed on the operation unit.
According to this configuration, the mode switching unit can switch between a mode in which reading is performed using the operation unit (first mode) and a mode in which reading is performed without using the operation unit (second mode). Therefore, whether to use the operation unit can be switched to the user according to the purpose.

  According to a third aspect of the present invention, the operation unit is configured as a trigger button serving as a start condition for at least one of the imaging process by the imaging unit and the reading process by the reading unit. In this configuration, when the apparatus is gripped and used, a trigger operation can be performed while gripping, and at least one of the imaging process and the reading process can be smoothly started by a trigger operation on the operation unit.

According to a fourth aspect of the present invention, there is provided a reflective surface that is disposed on the lower side of the reading port in the case and is inclined with respect to a plane direction perpendicular to the vertical direction, and the reading port is provided from the outside of the case. The imaging unit includes a reflection member that reflects light that enters through the reflection surface, and the imaging unit is configured to guide the light that has entered through the reading port from the outside of the case and reflected by the reflection member to the imaging unit.
In this way, the reflecting member is interposed in the case, and the path of the visual field range that extends from the imaging unit to the outside of the case (that is, the path that guides the light entering from the reading port to the imaging unit) is bent in the case. By doing so, it is easy to ensure a large distance from the optical system to the reading port (the length of the path through which light entering from the reading port enters the imaging unit) without increasing the thickness of the case so much. . As a result, it is possible to reduce the size of the case by reducing the thickness of the case while ensuring a larger visual field range near the reading port. In addition, by reducing the size as described above, it is possible to easily perform an operation while gripping. For example, it becomes very easy to perform a fine alignment operation or work in a narrow place. Furthermore, since the case is made thinner, the device is easier to grip and the operation unit can be operated more easily than a thicker configuration.

The invention according to claim 5 includes a sensor unit that detects a predetermined state in which the case is separated from the placement surface, and the mode switching unit switches to the first mode when the predetermined state is detected by the sensor unit, and the sensor unit When the predetermined state is not detected, the configuration is switched to the second mode.
In this configuration, when the case is gripped by the user and the case is separated from the placement surface, the state is detected by the sensor unit, and the mode switching unit automatically detects the first mode (predetermined with respect to the operation unit). It is possible to switch to a mode in which the information code is read on condition that the operation is performed. Therefore, when the user grasps the case and performs reading, it can be operated by a method in which reading is performed using the operation unit without forcing a complicated operation as much as possible.
In addition, when the case is not gripped by the user and the case is placed on the placement surface, the mode switching unit automatically performs the second mode (the information code is stored even if a predetermined operation is not performed on the operation unit). Reading is performed). Therefore, when the user performs reading in the placed state without gripping the case, it can be operated in a manner that does not use an operation unit without forcing a complicated operation as much as possible.

In the invention of claim 6 , the case has a predetermined direction orthogonal to the vertical direction as the longitudinal direction, the pair of first side wall portions face each other in the longitudinal direction, and the pair of lateral directions perpendicular to the vertical direction and the longitudinal direction. The second side wall portions are opposed to each other, and the operation portion is centered in the longitudinal direction of the case so that the distance to the center position of the case in the longitudinal direction is smaller than the distance to each of the pair of first side wall portions. It is arrange | positioned near the position, and is arrange | positioned in the position away from a pair of 2nd side wall part.
With this configuration, when the case is gripped so as to sandwich both lateral ends of the case (for example, one second side wall is received by the thumb and the other second side wall is received by the middle finger, ring finger, little finger, etc. When the gripping is performed so as to be received, the operation unit can be easily operated with a finger not used for gripping (for example, an index finger).

According to the seventh aspect of the present invention, the cable is arranged on either one side of the pair of first side wall portions so as to extend to the outside of the case, and the operation portion is more than a pair of center positions in the longitudinal direction of the case. The first side wall portion is disposed on the other side.
In this configuration, when the case is gripped so that both ends in the short direction of the case are sandwiched and the cable is arranged on the wrist side, the operation unit can be easily operated with a finger (for example, an index finger) that is not used for gripping. It becomes a relationship. That is, it becomes easy to operate the operation unit with a finger when the cable is in a gripping state that is as difficult as possible.

FIG. 1 is a perspective view schematically showing a stationary information code reader according to the first embodiment. 2 is a perspective view of the stationary information code reader of FIG. 1 as viewed from a direction different from that of FIG. FIG. 3 is a plan view of the stationary information code reader of FIG. FIG. 4 is a schematic cross-sectional view schematically showing the AA cross section of FIG. 3. FIG. 5 is a schematic cross-sectional view schematically showing a BB cross section of FIG. FIG. 6 is a schematic cross-sectional view schematically showing a cross-section CC of FIG. FIG. 7 is a schematic cross-sectional view schematically showing a DD cross section of FIG. 4. FIG. 8 is a schematic cross-sectional view schematically showing a cross section taken along the line E-E in FIG. 4. FIG. 9 is a block diagram schematically illustrating an electrical configuration of the stationary information code reader of FIG. FIG. 10 is an explanatory diagram for explaining a high illuminance area and the like configured by the stationary information code reader of FIG. FIG. 11 is a schematic diagram schematically showing a relationship among a reading port, a reflecting member, an imaging unit, an imaging unit, and the like in the stationary information code reading device according to the first embodiment. FIG. 12 is an explanatory diagram illustrating a state in which the stationary information code reader according to the first embodiment is operated while being turned over. FIG. 13 is an explanatory diagram illustrating a state in which the stationary information code reading apparatus according to the first embodiment is operated while being turned upside down from an angle different from that in FIG. 12. FIG. 14 is an explanatory view illustrating the bottom structure of the stationary information code reading device according to the first embodiment.

[First embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment in which an optical information reading device of the invention is embodied will be described with reference to the drawings.
(Overall configuration of optical information reader)
The stationary information code reader 1 (hereinafter also referred to simply as the reader 1) shown in FIGS. 1 to 3 and the like has an upper surface such as a desk or a shelf as a placement surface (see the placement surface F in FIGS. 4 and 5). ) As an information code reader for reading an information code such as a one-dimensional code such as a barcode or a two-dimensional code such as a QR code (registered trademark). It has a function.

  The reading device 1 includes a case 3 made of a resin material such as ABS resin. As shown in FIGS. 4 to 6 and the like, the case 3 includes an upper case 4a and a lower case 4b, and is configured in a box shape as a whole. The case 3 accommodates components such as a reflection member 29, an imaging unit 27, an imaging unit 23, and a light guide member 50 described later. Further, as shown in FIG. 3 and the like, in the case 3, a reading port 5 serving as a light entrance / exit is formed on an upper surface portion (reading side wall portion 3a) provided on one side in a predetermined vertical direction. Light from the outside of the case 3 enters the inside of the case 3 through the mouth 5, and light from the inside of the case 3 is emitted to the outside of the case 3. The optical system constituted by the reflecting member 29, the imaging unit 27, and the imaging unit 23 functions to image the information code C (FIG. 9) disposed outside the case 3 through the reading port 5. doing.

  As shown in FIGS. 4 and 5, the case 3 configured in a box shape has a placement surface side when placing the stationary information code reader 1 (the placement surface F side in the example of FIG. 4). ) And the reading side wall 3a in which the reading port 5 is formed are provided so as to face each other. The bottom wall 3b faces the placement surface F, is disposed to face the placement surface F, and is further disposed to be supported by the placement surface F. The reading side wall 3a facing the bottom wall 3b is configured as an exposed wall on the side where the information code C is placed. In this configuration, the facing direction of the bottom wall portion 3b and the reading side wall portion 3a (that is, the thickness direction of the case 3 and the direction perpendicular to the mounting surface F shown in FIG. 2) is defined as the vertical direction. The side where the mouth 5 is formed (the reading side wall 3a side) is the upper side, and the opposite side (the bottom wall 3b side) is the lower side. The plane direction orthogonal to the vertical direction is the horizontal direction. The thickness direction of the plate 7 is also the vertical direction, and the direction of the optical axis L2 of the second visual field range AR2 described later is also the vertical direction.

  As shown in FIGS. 4 to 6 and the like, the case 3 is arranged on the upper surface side of the case 3 so as to close the case 3 by closing the opening 4c formed at the upper end of the upper case 4a. A plate 7 arranged in the field of view is arranged. The plate 7 is configured as a flat plate having a predetermined thickness, and is configured by a light-transmitting member (for example, transparent acrylic resin or transparent glass) that can transmit light from the outside of the case 3. Yes. The plate 7 functions as a dust-proof plate. When the plate 7 closes the opening 4c formed in the upper case 4a, foreign matter (dust, dust, etc.) from the outside of the case is formed inside the case 3. ) Is difficult to enter. Further, a coating layer 8 made of a light-shielding paint or the like is formed so as to partially cover the upper surface portion of the plate 7. The covering layer 8 is formed in an annular shape along the peripheral edge of the plate 7, and an opening formed by the inner edge of the covering layer 8 serves as the reading port 5.

  Next, the electrical configuration of the reading device 1 will be described. As shown in FIG. 9, the reading apparatus 1 mainly includes an optical system such as an illumination light source 21, an imaging unit 27, and an imaging unit 23, and a microcomputer such as a memory 35 and a control circuit 40 (hereinafter referred to as "microcomputer"). And a power supply system such as a power supply unit and a power switch (not shown).

  The optical system is divided into a light projecting optical system and a light receiving optical system. The illumination light source 21 constituting the light projecting optical system functions as a light source capable of irradiating illumination light, and is constituted by, for example, an LED. As shown in FIG. 3 and the like, the illumination light source 21 includes first light sources 21a and 21b arranged on one side in the longitudinal direction of the case 3, and second light sources 21c and 21d arranged on the other side in the longitudinal direction of the case 3. Each of the first light sources 21a and 21b and the second light sources 21c and 21d is configured as a light projecting element such as an LED, and has a function of irradiating illumination light sideways.

  As shown in FIGS. 1 to 8 and the like, the light projecting optical system includes a light guide member 50 that guides light from the illumination light source 21. The light guide member 50 is disposed inside the case 3 at a position where the illumination light from the illumination light source 21 is irradiated, and the illumination light from the illumination light source 21 covers the opening region γ (see FIG. 4 and the like) of the reading port 5. The structure is such that it passes through the case 3 and is irradiated. Details of the light guide member 50 will be described later.

As shown in FIG. 9, the light receiving optical system includes an imaging unit 23, an imaging unit 27, a reflecting member 29, and the like.
The imaging unit 23 is configured by a light receiving sensor (area sensor) in which solid-state imaging elements (light receiving elements) such as CCD elements and CMOS elements are two-dimensionally arranged, for example, as shown in FIGS. In addition, a light receiving surface 23a capable of receiving light from outside the case is disposed on the image forming unit 27 side. The imaging unit 23 is mounted on the substrate so that the light reflected by the reflecting member 29 can receive incident light that passes through the imaging unit 27 and enters the light receiving surface 23a. For example, as shown in FIG. 9, when the reading object R indicated by the information code C is arranged within the visual field range (specifically, the region outside the case in the second visual field range AR <b> 2). It is configured to receive the reflected light Lr (see FIG. 9) reflected and reflected from the information code C and the reading object R. Further, in the imaging unit 23, a region where light can be detected on the light receiving surface 23a (a region where the solid-state imaging device is disposed) is set as a “predetermined light receiving region”. In FIG. The range of the area is conceptually indicated by reference numeral D1. That is, the light incident on the range D1 on the light receiving surface 23a is detected by the imaging unit 23. In the example illustrated in FIG. 4 and the like, the range of the light receiving region in the imaging unit 23 is, for example, a predetermined range in the vertical direction centered on the optical axis L1 on the light receiving surface 23a, and left and right centered on the optical axis L1. The direction (width direction) is a predetermined range. In the example shown in FIG. 4 and the like, the light receiving surface 23a is disposed substantially orthogonal to the front-rear direction.

  The image forming unit 27 shown in FIGS. 4 and 9 is configured by a known image forming lens and functions as an image forming optical system. As shown in FIG. In addition, the light that passes through the reading port 5 from the outside of the case 3 and enters the imaging unit 23 is reflected from the reflection member 29, and the information code C is disposed outside the case 3 in the visual field range. It sometimes functions to form an image of the information code C on the imaging unit 23. In this configuration, as shown in FIG. 10 and the like, the information code C can be imaged while the illumination light irradiated from the illumination light source 21 and guided to the outside of the case by the light guide member 50 is applied to the information code C. The imaging unit 27 shown in FIGS. 4 and 9 collects the reflected light Lr from the information code C when the information code C is arranged in the field of view (in the imaging area), and performs imaging. An image of the information code C is formed on the light receiving surface 23a of the unit 23. As the imaging unit 27, for example, a wide-angle lens with a short focal length and a wide angle of view can be suitably used.

  As shown in FIG. 9, the microcomputer system includes an amplification circuit 31, an A / D conversion circuit 34, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, and the like. The image signal of the information code C imaged by the system is configured to perform signal processing. Specifically, image data when the information code C arranged in the visual field range is imaged by the imaging unit 23 is configured to be able to be stored in the memory 35, and the control circuit 40 is configured such that the information code C The image data is analyzed, and the data recorded in the information code C is decoded by a known decoding method. The control circuit 40 corresponds to an example of a decoding unit. When the information code C arranged in the visual field range is imaged by the imaging unit 23, the code image of the information code C is decoded by a known decoding method. To function.

  As shown in FIG. 9, the reading apparatus 1 is provided with an operation unit 100 configured as a push button. For example, the operation unit 100 is configured to input a signal corresponding to the operation to the control circuit 40 when the user presses the operation unit 100.

  As shown in FIG. 9, the reading device 1 is provided with a sensor unit 42. The sensor unit 42 is a sensor that detects whether or not the bottom wall 3b (lower surface) of the case 3 has approached the placement surface, and is configured by, for example, a proximity sensor or a contact sensor. In this configuration, when the case 3 is placed on the placement surface, a detection signal is output from the sensor unit 42, and when the case 3 is not placed on the placement surface, a non-detection signal is output from the sensor unit 42. It is output.

  Although not shown in FIG. 9, the reader 1 may be provided with a known communication interface. In this configuration, information is transmitted from the reader 1 to an external device (not shown), The reading device 1 can receive information from an external device. Further, a display unit such as a lamp or a display device may be provided.

  The information code C to be read includes, for example, a QR code (registered trademark), and may be another two-dimensional code such as a data matrix code or a maxi code as long as it is a known code. Alternatively, a known one-dimensional code such as a barcode may be used. The method for forming the information code C to be read is not particularly limited, and various methods such as printing, direct marking, and image display are assumed. Also, the material and structure of the reading object R (FIG. 9) are various, and various materials such as metal materials, resin materials, and paper are targeted, and portable terminals (portable information processing devices such as mobile phones and smartphones). Or other information processing apparatuses.

(Imaging structure)
Next, the imaging structure and the like will be described in detail.
In this configuration, the reflecting member 29, the imaging unit 27, the imaging unit 23, the illumination light source 21, and the light guide member 50 are accommodated in the case 3. Hereinafter, the reflection member 29, the imaging unit 27, the imaging unit 23, the illumination light source 21, the light guide member 50, and the like will be described in more detail.

  In the present specification, in the plane direction (horizontal direction) orthogonal to the vertical direction, the longitudinal direction of the case 3 is defined as the width direction (horizontal direction), and the short direction (vertical direction) of the case 3 in the plane direction (horizontal direction). The direction orthogonal to the direction and the width direction) is the front-rear direction.

  As shown in FIGS. 4 to 6 and the like, in this configuration, a plate-like plate 7 is disposed as the upper surface portion (upper wall portion) of the case 3, and this plate 7 corresponds to the reading side wall portion 3a. Yes. As shown in FIG. 3, a substantially rectangular reading port 5 is formed at the center portion in the longitudinal direction and the center portion in the lateral direction of the plate 7 when the reading device 1 is viewed in plan. When the reading port 5 is viewed in plan as shown in FIG. 3, the reflection member 29 reflects the opening region γ of the reading port 5 (the region inside the boundary line P <b> 3 shown in FIG. 3, see also FIG. 4). It is formed in a size and position so that the entire area (area of the reflecting surface) can be accommodated. That is, in the width direction, the width direction one end part and the other end part of the reflecting member 29 are arranged between the width direction one end part 5a and the width direction other end part 5b. Between the front-rear direction one end 5c and the front-rear direction other end 5d, the front-rear direction one end and the other end of the reflecting member 29 are arranged. Note that almost all of the edges of the width direction one end portion 5a and the width direction other end portion 5b of the reading port 5 extend linearly in the front-rear direction except for the corner portion, and one end portion in the front-rear direction of the reading port 5 5c and the other end portion 5d in the front-rear direction extend substantially linearly in the width direction (left-right direction) except for the corners.

  As shown in FIGS. 4 to 6 and the like, the bottom wall portion 3b of the case 3 is configured in a plate shape as the lower surface portion of the case 3, and when the reading device 1 is placed on the placement surface F, The lower surface side of the bottom wall portion 3b is configured to be supported by the placement surface F. The bottom wall portion 3b has a configuration in which the thickness direction is the vertical direction, and most of the outer surface (lower surface) is configured as a substantially flat surface. And it functions as the bottom of case 3 comprised in box shape. In addition, between the reading side wall part 3a (upper surface part) and the bottom wall part 3b (lower surface part), the accommodation space (the reflection member 29, the image formation part 27, the imaging part 23, etc.) in the case 3 is accommodated. ) Is provided with a side wall 3c. This side wall part 3c is provided with a pair of side wall arrange | positioned at the width direction both sides, and a pair of side wall arrange | positioned at the front-back direction both sides, and these four side walls are arrange | positioned by connecting cyclically | annularly. The plate 7 corresponding to the reading side wall 3a (upper surface) is arranged in such a manner that the upper side of the annular side wall 3c (circumferential wall) is partially closed, and the entire lower side of the side wall 3c is arranged. The bottom wall portion 3b (lower surface portion) is arranged in a closing configuration.

  As shown in FIGS. 4 to 8 and the like, the plate 7 is arranged so as to close the opening formed in the upper end portion of the upper case 4 a, and constitutes the upper surface portion of the case 3. Are arranged so as to cover the upper side of the reflecting member 29, the imaging unit 27, and the light guide member 50 accommodated in the housing. When viewed in plan as shown in FIG. 3, the exposed portion of the plate 7 (the portion of the opening region γ (FIG. 4) that is the region inside the boundary line P3 conceptually shown in FIG. 3) passes through the case. The reflection member 29, the image forming unit 27, and the light guide member 50 are visually recognized. The plate 7 is configured as a transparent and flat plate material, and is disposed substantially horizontally so that the direction orthogonal to the plate surfaces (the upper surface 7a and the lower surface 7b) is the vertical direction. The plate 7 corresponds to an example of a transparent member, and functions to close the reading port 5 configured as the inner peripheral portion of the coating layer 8. In other words, the reading port 5 has a configuration that allows light to enter and exit, but does not allow water or dust to enter due to the blocking of the plate 7.

  The reflection member 29 is configured as, for example, a mirror, and is provided on the lower side of the reading port 5 inside the case 3, and includes a reflection surface 29 a that is inclined with respect to a plane direction orthogonal to the vertical direction. The light that enters from the outside through the reading port 5 functions to be reflected by the reflecting surface 29a. The reflecting member 29 is arranged such that the reflecting surface 29a (mirror surface) is obliquely upward and faces one side in the front-rear direction, and the light that has entered through the reading port 5 from the upper side of the case 3 is directed to one side in the front-rear direction. It is configured to reflect. More specifically, the reflection surface 29a is configured to be flat, and the reflection surface 29a is arranged so as to be orthogonal to a virtual plane parallel to the vertical direction and the front-rear direction. For example, light that enters parallel to the vertical direction So that the angle between the vertical direction and the horizontal direction (plane direction orthogonal to the vertical direction) is 45 °. In this configuration, of the upper outer surface of the reflecting member 29, the surface that is exposed and arranged so as to reflect light from above corresponds to the reflecting surface 29a, and the upper end portion 29c of the reflecting surface 29a is It is arranged slightly away from the plate 7.

  Further, the upper end portion 29c of the reflection surface 29a of the reflection member 29 is disposed closer to the upper end of the case than the center of the case 3 in the vertical direction, and the lower end portion 29d of the reflection surface 29a of the reflection member 29 is arranged in the vertical direction. It arrange | positions near the bottom wall part 3b. Further, the reflecting surface 29a of the reflecting member 29 is configured such that the width becomes wider toward the upper side so that the lower end portion 29d has the smallest width and the upper end portion 29c has the largest width.

  The imaging unit 27 is configured by the imaging lens that functions as a wide-angle lens as described above, and is positioned away from the plate 7 (more specifically, the upper and lower sides of the case 3 as shown in FIGS. 4, 6, 7, and the like). It is disposed at a position closer to the lower side than the center position in the direction and on the side of the reflecting surface 29a. The imaging unit 27 has a function of guiding the light that has entered through the reading port 5 from the outside of the case 3 and reflected by the reflecting member 29 to the imaging unit 23, and can be imaged by the imaging unit 23 inside and outside the case 3. It is the composition which defines the visual field range which becomes. Specifically, as shown in FIG. 4, the visual field range includes a first visual field range AR1 configured between the imaging unit 27 and the reflecting member 29, and reflection so as to follow the first visual field range AR1. A second visual field range AR2 configured on the upper side from the member 29 is defined. That is, the light from the visual field range is condensed toward the light receiving region of the imaging unit 23 so that the first visual field range AR1 and the second visual field range AR2 are used as the imaging area. The first visual field range AR1 is a visual field range that is collected by the imaging unit 27 and directly captured by the imaging unit 23, and the second visual field range AR2 is an image captured by the reflecting member 29. It is a field of view range to be imaged. Then, when the information code C is arranged in the second visual field range AR2 set outside the case 3, the image of the information code C is formed in the light receiving region of the imaging unit 23.

  The first visual field range AR1 shown in FIG. 4 is a range that is imaged by the imaging unit 23 in the space between the imaging unit 27 and the reflecting member 29, and is set so as to gradually become wider as the reflecting member 29 is approached. ing. The first optical axis L1 that is the center of the first visual field range AR1 is in the horizontal direction (specifically, the front-rear direction), and the angle formed with the reflective surface 29a is 45 °. Then, as shown in FIG. 4, when the reading device 1 is cut with a plane passing through the first optical axis L1 and parallel to the vertical direction as a cut surface, the first visual field range AR1 is expanded most vertically on the cut surface. It has become. And in the cut surface shown in FIG. 4 (the cut surface passing through the optical axis L1 and parallel to the vertical direction), the lower limit boundary of the first visual field range AR1 becomes a lower position (lower position) as it approaches the reflecting member 29. The upper limit boundary of the one visual field range AR1 is configured to become a higher position (upper position) as it approaches the reflecting member 29. Then, on the cut surface shown in FIG. 4 (the cut surface at the AA position shown in FIG. 3, the cut surface obtained by cutting the reading device 1 in the direction orthogonal to the left-right direction at the center position in the left-right direction). The position at which the lower boundary of AR1 reaches the reflecting surface 29a of the reflecting member 29 (the position where the boundary and the reflecting surface 29a intersect) is the lower end position of the first visual field range AR1. Further, the upper limit boundary of the first visual field range AR1 is a position slightly above the upper end portion 29c of the reflective surface 29a of the reflective member 29 (specifically, the outer surface of the reflective portion 51 disposed above the upper end portion 29c). It is a crossing position).

  As shown in FIG. 4, in this configuration, the reflective region of the reflective member 29 (the region where the reflective surface 29a is exposed) is located at least at the lower end of the first visual field range AR1, and from the lower end to the upper end of the first visual field range AR1. It continues to the vicinity. That is, the reflecting member 29 has the reflecting surface 29a so as to cover most of the vertical region of the first visual field range AR1 on the cut surface as shown in FIG. Then, the entire area or most area of the reflecting surface 29 a is arranged in the light receiving area of the imaging unit 23.

  The second visual field range AR2 is a visual field range that is folded back by the reflective surface 29a so as to follow the region reaching the reflective surface 29a in the first visual field range AR1, and an object that exists in the second visual field range AR2. And the like are reflected on the reflecting member 29 and imaged by the imaging unit 23. Conversely, the outside of the second visual field range AR2 is not imaged by the imaging unit 23 except for the first visual field range AR1.

  In this configuration, the reflecting surface 29a is inclined at an angle of, for example, 45 degrees with respect to the horizontal direction, and the imaging unit 27 is disposed on one side in the front-rear direction with respect to the reflecting member 29, and the first field of view range AR1. One optical axis L1 extends horizontally and is horizontal. Therefore, the second optical axis L2 that is the center of the second visual field range AR2 extends in the up-down direction. Then, the second visual field range AR2 turned back by the reflecting member 29 so as to follow the first visual field range AR1 is set so that the range becomes wider as it goes upward, and a cross section (optical axis) as shown in FIG. In the cross section passing through L1 and L2, the second visual field range AR2 is widened forward and backward as it goes upward.

  Specifically, the second visual field range AR2 is set so that the range becomes wider in the front-rear direction as it goes upward with the second optical axis L2 as the center, and similarly, the second visual field range AR2 becomes upward with the second optical axis L2 as the center. Accordingly, the second visual field range AR2 is set so that the range becomes wider to the left and right. The imaging unit 27 is disposed at a position outside the second visual field range AR2. That is, the imaging unit 27 is disposed at a position that is deviated to one side in the front-rear direction from the boundary B1 on one side in the front-rear direction of the second visual field range AR2. As described above, since a part of the imaging unit 27 is configured not to enter the second visual field range AR2, a part of the imaging unit 27 is reflected on the reflecting member 29 and is captured by the imaging unit 23. In other words, reduction of the imaging area due to such reflection is suppressed. Further, as shown in FIG. 4, the lens portion of the imaging unit 27 is disposed at a position higher than the lower end portion 29b of the reflection surface 29a (reflection region) of the reflection member 29, and is lower than the upper end portion 29c of the reflection surface 29a. Further, one end portion in the front-rear direction (end portion on the reflecting member 29 side) of the imaging unit 27 is arranged in the front-rear direction with the other end portion 5d in the front-rear direction of the reading port 5 and the second optical axis L2. It is arranged between. By arranging in this way, it is possible to make use of the area below the reading port 5 while preventing the image forming unit 27 from being reflected.

  Further, as shown in FIG. 4, in a cross section in which a plane passing through the first optical axis L1 that is the center of the first visual field range AR1 and the second optical axis L2 that is the center of the second visual field range AR2 is a cut surface. Both the boundaries B1 and B2 of the two visual field ranges AR2 pass through the position of the inner peripheral portion 5f of the reading port 5 or a close position near the inner peripheral portion 5f. In the example of FIG. 4, the boundary B1 on one side in the front-rear direction and the boundary B2 on the other side in the front-rear direction of the second visual field range AR2 both pass inside the inner peripheral part 5f of the reading port 5. However, both of these boundaries B1 and B2 may pass through the inner peripheral portion 5f.

  Next, the illumination light source 21 will be described. As shown in FIGS. 3, 4, 6, and 8, the illumination light source 21 is arranged at a position outside the opening region γ (inner region of the boundary line P <b> 3 shown in FIG. 3) in the plane direction perpendicular to the vertical direction. Has been. Note that the boundary line P3 conceptually indicates the boundary of the opening region γ in the planar direction, and the inner edge of the reading port 5 actually becomes the boundary of the opening region γ. The illumination light source 21 includes first light sources 21 a and 21 b disposed near one end in the longitudinal direction of the case 3 (close to one end in the width direction) and a first light source disposed near the other end in the longitudinal direction of the case 3 (closer to the other end in the width direction). It has two light sources 21c and 21d. The first light sources 21a and 21b and the second light sources 21c and 21d are all disposed below the covering layer 8 formed on the plate surface of the plate 7, and the first light source is formed as shown in FIGS. Each of 21a, 21b and the second light sources 21c, 21d is mounted on the lower surface side of a substrate (substrates 91, 92, 93, 94) disposed below the covering layer 8. The substrate 91 and the substrate 92 may be the same substrate or may be separate substrates. Further, the substrate 93 and the substrate 94 may be the same substrate or may be separate substrates.

  As shown in FIGS. 4, 6, and 8, the first light sources 21 a and 21 b and the second light sources 21 c and 21 d are all positioned below the plate 7 in the vertical direction and the upper end position of the light guide member 50 described later. As shown in FIG. 3, it is arranged at a position away from the opening region γ (inner region of the boundary line P3) in the planar direction as shown in FIG. The first light sources 21a and 21b and the second light sources 21c and 21d are irradiated with illumination light in a horizontal direction (horizontal direction) orthogonal to the vertical direction and an oblique horizontal direction inclined with respect to the horizontal direction. The illumination light is applied to the side approaching the opening region γ. For example, as shown in FIGS. 6 and 8, the irradiation surfaces (light emitting surfaces) of the first light sources 21a and 21b arranged on one side in the left-right direction (width direction) correspond to the side surfaces of the first light sources 21a and 21b. At the same time, it is arranged so as to face the other side in the left-right direction (second light source 21c, 21d side), and illumination light is emitted from the first light source 21a, 21b toward the other side in the left-right direction. The irradiation surfaces (light emitting surfaces) of the second light sources 21c and 21d arranged on the other side in the left and right direction (width direction) correspond to the side surfaces of the second light sources 21c and 21d and one side in the left and right direction (first light source). 21a, 21b side), and illumination light is emitted from the second light sources 21c, 21d toward one side in the left-right direction. In addition, each side surface used as the irradiation surface of the 1st light sources 21a and 21b and the 2nd light sources 21c and 21d becomes a surface direction orthogonal to the width direction, for example, and all the 1st light sources 21a and 21b and the 2nd light sources The heights of the irradiation surfaces 21c and 21d in the vertical direction are substantially the same.

  Further, at a position between the illumination light source 21 and the reading port 5 in the vertical direction, at least on the irradiation side of the illumination light from the illumination light source 21, the reading port 5 side (second visual field) from the position of the illumination light source 21 along the plane direction. A light shielding portion (light shielding portions 91a, 92a, 93a, 94a) configured to extend to the range AR2 side is disposed. The light shielding portions 91a, 92a, 93a, and 94a block the illumination light that is going obliquely upward from the illumination light source 21.

  For example, as shown in FIG. 6, at a position between the first light source 21 a and the reading port 5 in the planar direction, at least on the illumination light irradiation side (second light source 21 c side in the width direction) from the first light source 21 a, A light shielding portion 91a is arranged so as to extend in the plane direction from the position of the first light source 21a. The light shielding portion 91a corresponds to a portion on the opening region γ side (side closer to the opening region γ in the planar direction) than the first light source 21a on the substrate 91 on which the first light source 21a is mounted. The light shielding portion 91a blocks light that is directed obliquely upward from the first light source 21a. In the example shown in FIG. 6 and the like, the substrates 91, 92, 93, and 94 are configured such that the thickness direction is the vertical direction, and the plate surface direction is the horizontal direction (surface direction orthogonal to the vertical direction). First light sources 21a and 21b and second light sources 21c and 21d configured as light emitting elements are mounted on the lower surfaces (back surfaces) of the substrates 91, 92, 93 and 94, respectively. For example, in the substrate 91, the mounting surface of the first light source 21a (the lower surface of the substrate 91) is at least near the opening region γ from the position of the first light source 21a in the planar direction (the optical axis L2 of the second visual field range AR2). It is arranged so that the side close to Since it is configured in this way, even if the light immediately after being emitted from the first light source 21a is directed obliquely upward, the light is blocked by the light shielding portion 91a and mostly reflected downward, so that the first light source 21a Most of the light from is less likely to go obliquely upward than the first light source 21a. As a result, most of the light from the first light source 21a is irradiated in the horizontal direction and obliquely downward. Similarly, as shown in FIG. 8, at a position between the first light source 21 b and the reading port 5 in the planar direction, at least from the position of the first light source 21 b on the irradiation light irradiation side from the first light source 21 b in the planar direction. A light shielding portion 92a is arranged to extend (specifically, to extend toward the reading port 5 in the planar direction). The light shielding portion 92a corresponds to a portion of the substrate 92 on which the first light source 21b is mounted that is closer to the opening region γ than the first light source 21b (side closer to the opening region γ in the planar direction). The light which tries to go diagonally upward from the first light source 21b is blocked. More specifically, the mounting surface (the lower surface of the substrate 92) of the first light source 21b is closer to the opening region γ from the position of the first light source 21b at least in the plane direction (close to the optical axis L2 of the second visual field range AR2). Side). Thereby, most of the light from the first light source 21b is irradiated in the horizontal direction and obliquely downward. In the explanatory diagram of FIG. 8, light emitted from the first light source 21b is omitted.

  Further, as shown in FIG. 6, at a position between the second light source 21 c and the reading port 5 in the planar direction, it extends in the planar direction from the position of the second light source 21 c at least on the irradiation light irradiation side from the second light source 21 c. As described above (specifically, the light shielding portion 93a is disposed so as to extend toward the reading port 5 in the planar direction). The light shielding portion 93a corresponds to the portion of the substrate 93 on which the second light source 21c is mounted that is closer to the opening region γ than the second light source 21c (side closer to the opening region γ in the plane direction). Light that is directed obliquely upward from the second light source 21c is blocked. More specifically, the mounting surface (the lower surface of the substrate 93) of the second light source 21c is close to the opening region γ from the position of the second light source 21c at least in the plane direction (close to the optical axis L2 of the second visual field range AR2). Side). Thereby, much of the light from the second light source 21c is irradiated in the horizontal direction and the obliquely downward direction. In the explanatory diagram of FIG. 6, light emitted from the second light source 21c is omitted. Similarly, as shown in FIG. 8, at a position between the second light source 21 d and the reading port 5 in the planar direction, at least from the position of the second light source 21 d on the irradiation light irradiation side from the second light source 21 d in the planar direction. A light-shielding portion 94a is disposed so as to extend (specifically, to extend toward the reading port 5 in the planar direction). The light shielding portion 94a corresponds to a portion of the substrate 94 on which the second light source 21d is mounted that is closer to the opening region γ than the second light source 21d (side closer to the opening region γ in the plane direction). The light that is directed obliquely upward from the second light source 21d is blocked. More specifically, the mounting surface (the lower surface of the substrate 94) of the second light source 21d is close to the opening region γ from the position of the second light source 21d at least in the plane direction (close to the optical axis L2 of the second visual field range AR2). Side). Thereby, most of the light from the second light source 21d is irradiated in the horizontal direction and the obliquely downward direction. Since it is configured in this manner, the light from each illumination light source 21 does not easily enter the eyes of the user, and the light from each illumination light source 21 can be efficiently applied to the light guide member 50 described later.

  And the light guide member 50 is arrange | positioned in the irradiation destination of the illumination light by these illumination light sources 21. FIG. As illustrated in FIG. 10, the light guide member 50 is more than the illuminance of the illumination light passing through the center portion P <b> 1 of the visual field range in the opening region γ of the reading port 5 (the inner region of the boundary line P <b> 3 shown in FIG. 10). The illumination light is guided so that the illuminance of the illumination light passing through a predetermined high illuminance region β defined near the peripheral edge in the visual field range is larger. 4 and 10, the region surrounded by the inner edge portion of the reading port 5 at the position of the upper surface of the plate 7 (the region exposed from the reading port 5 on the upper surface of the plate 7) corresponds to the opening region γ. Yes. In the example of FIG. 10, the annular area along the peripheral edge of the visual field range is the high illuminance area β in the opening area γ, and the high illuminance area β is conceptually shown by hatching.

  The light guide member 50 includes a plurality of reflecting portions 51, 52, 53, and 54 that reflect illumination light from the illumination light source 21. In each of these reflecting portions 51, 52, 53, and 54, the surface on the second visual field range AR 2 side is configured as a reflecting surface that reflects the illumination light from the illumination light source 21. The reflecting surfaces of the reflecting portions 51, 52, 53, 54 are all located in the plane direction perpendicular to the vertical direction at the position of the central portion P 1 of the visual field range in the opening region γ of the reading port 5 (that is, the plate 7 And a position where the optical axis L2 intersects) is formed as an inclined surface that becomes a lower position as it approaches. The reflecting portions 51, 52, 53, and 54 are made of, for example, light-shielding members, and any of the reflecting portions 51, 52, 53, and 54 is an outer surface (that is, illumination light) on the second visual field range AR2 side. Is a predetermined color (for example, a bright color such as white), and both are configured to diffusely reflect light incident on the outer surface on the second visual field range AR2 side.

  As shown in FIGS. 1 to 3, 5, 7, and the like, the light guide member 50 includes a pair of first reflecting portions 53 and 54 that face each other in a predetermined direction (width direction) orthogonal to the vertical direction. Yes. As shown in FIGS. 5 and 7, in the pair of first reflecting portions 53 and 54, the reflecting surface of one first reflecting portion 54 approaches the other reflecting portion 53 in a predetermined direction (width direction). The reflecting surface of the other reflecting portion 53 is configured as an inclined surface that becomes a lower position as it approaches one reflecting portion 54 in a predetermined direction.

  More specifically, as shown in FIGS. 3, 5, and 7, a pair of first reflecting portions 53 and 54 that face each other in the width direction (a predetermined first direction orthogonal to the vertical direction), and FIGS. As shown in FIG. 4, a pair of second reflecting portions 51 and 52 facing each other in the front-rear direction (vertical direction and a predetermined second direction orthogonal to the first direction) are provided. The entire light guide member 50 is disposed along the second visual field range AR2 outside the visual field range, and has a mortar-like structure in which the size of the hole (opening region) becomes narrower as the position is lowered. ing. As described above, the light guide member 50 is annularly disposed outside the second visual field range AR2 so as to surround the second visual field range AR2, and the upper end portion 50a is disposed close to the inner edge of the reading port 5. Has been. The upper end portion 50a of the light guide member 50 has an annular end structure surrounding the second visual field range AR2, and any of the upper end portions 50a configured in this manner is directly below the inner edge portion of the reading port 5. Located in the vicinity, the peripheral edge is closer to the center of the opening region γ at any position of the upper end portion 50a. Further, in any position of the upper end portion 50a, the peripheral edge portion (near the boundary line P2) is closer than the central portion P1 of the visual field range α in the opening region γ.

  As shown in FIGS. 3, 5, and 7, in the pair of first reflecting portions 53 and 54, the reflecting surface of one first reflecting portion 54 is the other first reflecting portion 53 in the width direction (first direction). The reflecting surface of the other first reflecting portion 53 is configured as an inclined surface that becomes a lower position as it approaches one first reflecting portion 54 in the width direction (first direction). It is configured. Further, as shown in FIGS. 3 and 4, in the pair of second reflecting portions 51 and 52, the reflecting surface of one second reflecting portion 51 is opposite to the other second reflecting portion 52 in the front-rear direction (second direction). It is configured as an inclined surface that becomes a lower position as it approaches, and the reflecting surface of the other second reflecting portion 52 is configured as an inclined surface that becomes a lower position as it approaches one second reflecting portion 51 in the front-rear direction (second direction). Has been. And the illumination light source 21 becomes a structure which irradiates illumination light to all of the one 1st reflection part 54, the other 1st reflection part 53, the one 2nd reflection part 51, and the other 2nd reflection part 52. ing. In FIG. 3, the region of one first reflecting portion 54 is conceptually indicated by a two-dot chain line J11, and the region of the other first reflecting portion 53 is conceptually indicated by a two-dot chain line J12. Moreover, the area | region of one 2nd reflection part 51 is shown with the dashed-two dotted line J21, and the area | region of the other 2nd reflection part 52 is shown with the dashed-two dotted line J22. The reflecting portion of the first reflecting portion 53 is disposed on one side in the width direction with respect to the center position in the width direction of the case 3, and is disposed on one side in the width direction with respect to the optical axis L2 of the second visual field range AR2. The end portion (end portion close to the first light sources 21a, 21b) has the largest length in the front-rear direction, and the length in the front-rear direction gradually increases as it approaches the optical axis L2 side of the second visual field range AR2 in the width direction. It is getting smaller. The reflection part of the first reflection part 54 is disposed on the other side in the width direction with respect to the center position in the width direction of the case 3 and is disposed on the other side in the width direction with respect to the optical axis L2 of the second visual field range AR2. The end portion (end portion closer to the second light source 21c, 21d) has the largest length in the front-rear direction, and the length in the front-rear direction gradually increases as it approaches the optical axis L2 side of the second visual field range AR2 in the width direction. It is getting smaller. The reflecting portion of the second reflecting portion 51 is disposed on one side in the front-rear direction from the front-rear center position of the case 3 and is disposed on one side in the front-rear direction with respect to the optical axis L2 of the second visual field range AR2. The position of the end (the end opposite to the optical axis L2) has the largest length in the left-right direction (width direction), and the left-right direction (width) as it approaches the optical axis L2 side of the second visual field range AR2 in the front-rear direction. Direction) is gradually becoming smaller. The reflection part of the second reflection part 52 is disposed on the other side in the front-rear direction than the center position in the front-rear direction of the case 3 and on the other side in the front-rear direction with respect to the optical axis L2 of the second visual field range AR2. The position of the end (the end opposite to the optical axis L2) has the largest length in the left-right direction (width direction), and the left-right direction (width) as it approaches the optical axis L2 side of the second visual field range AR2 in the front-rear direction. Direction) is gradually becoming smaller.

  Specifically, as shown in FIGS. 6, 8, and 10, the first light sources 21 a and 21 b are opposite to the first light sources 21 a and 21 b in the width direction (relative to the center position of the case 3 in the width direction). The first light source 21a, 21b is provided on the opposite side of the first light source 21a and 21b, and is irradiated with illumination light. The second light sources 21c, 21d Illumination light is irradiated toward the other first reflecting portion 53 provided on the opposite side to the two light sources 21c and 21d (the opposite side to the second light sources 21c and 21d with respect to the center position in the width direction of the case 3). It has a configuration. The first light sources 21a and 21b correspond to the other-side light sources arranged closer to the other first reflecting portion 53 than the first reflecting portion 54 in the width direction (first direction). The light sources 21c and 21d correspond to one-side light sources arranged on the side closer to the first reflecting portion 54 than the other first reflecting portion 53 in the width direction (first direction). The illumination light from the second light sources 21c and 21d (one-side light source) is incident on the first reflecting portion 53 side in the other first reflecting portion 53 and the pair of second reflecting portions 51 and 52 (in the width direction of the reading port 5). At least the region above the center position in the vertical direction of the case 3 (preferably almost the entire reflection portion) is irradiated to the portion on the first reflection portion 53 side from the center position. Illumination light from the first light sources 21a and 21b (the other side light source) is on the first reflecting portion 54 side in the first reflecting portion 54 and the pair of second reflecting portions 51 and 52 (in the width direction of the reading port 5). At least a region above the center position in the vertical direction of the case 3 (preferably almost the entirety of each reflection portion) is irradiated to a portion on the first reflection portion 54 side from the center position. In FIG. 10, the illumination light irradiation area from the first light source 21a is conceptually indicated by a thick broken line, and the illumination light irradiation area from the first light source 21b is conceptually indicated by a thick solid line. The illumination light irradiation area from the second light source 21c is conceptually indicated by a thick two-dot chain line, and the illumination light irradiation area from the second light source 21d is conceptually indicated by a thick one-dot chain line. .

  In this way, the illumination light emitted from the first light sources 21a and 21b and the second light sources 21c and 21d is the wall surface of the light guide member 50 configured in a mortar shape (the first reflecting portions 53 and 54 and the second reflecting portion). 51, 52 on the second visual field range AR2 side), the first reflecting portions 53, 54 and the second reflecting portions 51, 52 are generally bright when viewed in plan as shown in FIG. It will shine. Further, as shown in FIGS. 4, 5, and 7, each of the first reflecting portions 53 and 54 and the second reflecting portions 51 and 52 has a lower position on the center (optical axis L2) side of the visual field range AR2 in the planar direction. The side far from the optical axis L2 is the upper position. Therefore, in the opening region γ of the reading port 5 (the region exposed from the reading port 5 on the upper surface of the plate 7), in the visual field range α (the region surrounded by the boundary line P2 in FIG. 10), the peripheral portion Reflected light from the vicinity of the upper end portion 50a (near the upper end portions of the first reflecting portions 53 and 54 and the second reflecting portions 51 and 52) of the light guide member 50 near the vicinity (near the boundary line P2) It becomes easy to reach the vicinity of the line P2. Therefore, in the visual field range α (the region surrounded by the boundary line P2 in FIG. 10) in the opening region γ, the illuminance near the periphery of the visual field range α (near the boundary line P2) is near the center P1 of the visual field range α. It becomes relatively high compared with the illuminance. On the other hand, the central portion P1 of the visual field range α in the opening region γ is far from the first reflecting portions 53 and 54 and the second reflecting portions 51 and 52 compared to the vicinity of the peripheral portion (near the boundary line P2). The illumination light reflected by the first reflecting portions 53 and 54 and the second reflecting portions 51 and 52 is less likely to reach the central portion P1 in the opening region γ than in the peripheral portion of the visual field range α. Therefore, in the visual field range α (the region surrounded by the boundary line P2 in FIG. 10) in the opening region γ, the illuminance near the central portion P1 is relatively lower than the illuminance near the peripheral portion (near the boundary line P2). Become. In FIG. 10, the high illuminance region β in which the illuminance is higher than the illuminance near the central portion P1 of the visual field range α in the opening region γ is conceptually illustrated as a hatched region. In the opening area γ, since the high illuminance area β is configured in this way, when an object is arranged so as to be in close contact with the upper surface of the plate 7 in the opening area γ, the illuminance at the position of the high illuminance area β is reduced in this object. Relatively large, the illuminance near the center portion P1 is relatively small, and the high illuminance region β is relatively brighter than near the center portion P1.

(Configuration to reduce the influence of external noise light)
Next, a configuration for suppressing the influence of external noise light will be described.
FIG. 11 shows a cut surface (a surface passing through the first optical axis L1 serving as the center of the first visual field range AR1 and the second optical axis L2 serving as the center of the second visual field range AR2) as cut in FIG. The positional relationship among the plate 7, the reflection surface 29 a, the reading port 5, the imaging unit 27, and the imaging unit 23 is conceptually shown. The reflective surface 29 a is a mirror surface region (reflective region) exposed on the upper side of the reflective member 29.

  In this specification, as shown in FIGS. 4 and 11, the first optical axis L1 that is the center of the first visual field range AR1 and the second optical axis L2 that is the center of the second visual field range AR2 are cut along a plane passing through. In the cut surface, a straight line passing through the position of the reflecting surface 29a of the reflecting member 29 is defined as a center line C1, and a position that is symmetrical with the principal point Pa of the visual field range when the center line C1 is the center is defined as a first virtual principal point. Pb1. The first virtual principal point Pb1 is located on an extension line of the boundary line of the second field-of-view range AR2 (illustrated by two straight lines in FIG. 11) on the cut surface in FIG. And in this cut surface (FIG. 11), when the straight line passing through the position of the lower surface 7b of the plate 7 is defined as the center line C2, the position that is symmetrical with the first virtual principal point Pb1 is defined as the second virtual principal point Pb2. . A position that is symmetrical with the second virtual principal point Pb2 when the center line C1 is the center is defined as a third virtual principal point Pb3. In FIG. 11, the area of the second visual field range AR2 starting from the first virtual principal point Pb1 is symmetric with respect to the center line C2 as the area of the first virtual visual field range (second virtual field range). It is shown as an area indicated by a two-dot chain line starting from the principal point Pb2. The area of the first virtual visual field range starting from the second virtual principal point Pb2 (the area indicated by the two-dot chain line starting from the second virtual principal point Pb2) is made symmetrical about the center line C1. The area is shown as an area of the second virtual visual field range (an area indicated by a one-dot chain line starting from the third virtual principal point Pb3). In the area of the second virtual visual field range, when light from obliquely above enters the case in this area, the light is reflected at the position of the center line C1 and further reflected at the position of the center line C2. This is an area that is sometimes reflected in the imaging unit 23.

  As described above, when the third virtual principal point Pb3 is determined, one open end 5d (specifically, the reading opening 5 starts from the third virtual principal point Pb3 on the cut surface (FIGS. 4 and 11). Includes the first straight line La1 passing through the upper end position of the end portion 5d farther from the third virtual principal point Pb3 and the other opening end portion 5c (from the third virtual principal point Pb3) as the starting point. Specifically, when the second straight line La2 passing through the lower end position of the end portion 5c close to the third virtual principal point Pb3 is set, the first straight line La1 and the second straight line La2 The reflective surface 29a of the reflective member 29 is not disposed in the area between them, and the reflective surface 29a (the mirror surface region exposed to the upper side in the reflective member 29) is disposed only at a position deviating below the first straight line La1. Yes.

  When the reading port 5 and the reflecting surface 29a of the reflecting member 29 are arranged in such a positional relationship, an area in which light may enter from outside the case (between the straight line La1 and the straight line La2) in the second virtual visual field range described above. Even if light enters the inside of the case 3 from the above range), the reflecting surface 29a does not exist at the destination. Therefore, the light entering from this area is not reflected by the reflecting surface 29a and further reflected by the lower surface 7b and reflected on the imaging unit 23. Further, it is assumed that light enters the case from an area other than the second virtual visual field range and other than the second visual field range AR2, the extraneous light is reflected by the reflecting member 29, and the reflected light is specularly reflected by the back surface of the plate 7. However, the specular reflection light on the plate 7 is less likely to be reflected on the imaging unit 23. Therefore, the problem that the information code C is imaged unclearly due to the reflection of the extraneous light can be more reliably suppressed, and the decoding failure caused by the reflection of the extraneous light can be more reliably reduced. it can.

  On the other hand, when the reflecting surface 29a of the reflecting member 29 is extended above the first straight line La1 as shown in FIG. 14 without such a positional relationship, the above description starts from the third virtual principal point Pb3. The second virtual visual field range (particularly, the region between the first straight line La1 and the second straight line La2) is present in the second virtual visual field range, and the first straight line La1 and the straight line La2 in FIG. When extraneous light enters from the range of 'and is reflected by the reflecting surface 29a, when the reflected light is specularly reflected by the back surface (lower surface 7b) of the plate 7, the specularly reflected light is received by the imaging unit 23. turn into. In this configuration, as shown in FIG. 11, the reflection surface 29a is removed downward from the first straight line La1, so that such reflection of extraneous light can be prevented, and the reflection surface 29a is temporarily out of the visual field range. Even when extraneous light enters and the reflected light is specularly reflected by the back surface (lower surface 7 b) of the plate 7, the path of the specularly reflected light is a path that is difficult for the imaging unit 23 to receive.

(Configuration of operation unit)
As described above, the information code reader 1 shown in FIG. 1 and the like determines the case 3, the imaging unit 23 accommodated in the case 3, the field of view that can be imaged by the imaging unit 23, and the case 3 When the information code C is arranged in the visual field range outside the image forming unit 27 that forms an image of the information code C on the imaging unit 23, and when the information code C is captured by the imaging unit 23, A reading unit that analyzes a captured image of the information code C and performs a reading process. The case 3 is provided with a reading side wall (upper surface) 3a in which a reading port 5 serving as a light entrance / exit is formed on one side (upper side) in a predetermined vertical direction, and the other side (lower side) in the vertical direction. The side wall is provided with a bottom wall portion (lower surface portion) 3b that faces the placement surface F side and is supported by the placement surface F when placed on the placement surface F.

In the reading device 1, as shown in FIGS. 12 to 14, the operation unit 100 is arranged on the bottom wall 3 b (lower surface) of the case 3 so that the operation from the outside of the case 3 is possible. ing.
The operation unit 100 includes a button unit 101 that can be pressed, and is configured to input a predetermined operation signal (press signal) to the control circuit 40 when the button unit 101 is pressed. Has been.

  The operation unit 100 illustrated in FIGS. 12 to 14 is configured as a trigger button serving as a start condition for at least one of the imaging process by the imaging unit 23 and the reading process by the reading unit. For example, in the first mode to be described later, the imaging process by the imaging unit 23 is started when a pressing operation is performed on the operation unit 100 after the power is turned on. When the code is imaged, the captured image of the information code is decoded by a known method and decoded.

  For example, when a QR code (registered trademark) is imaged as an information code by an imaging process performed after a pressing operation on the operation unit 100 is performed, a finder pattern is obtained from the captured image of the QR code by a known method. Detect and detect the outer shape (boundary) of the QR code. Then, the brightness of each cell is discriminated within the detected boundary, and decoding is performed by a known method. Alternatively, when a barcode is imaged as an information code, the captured image of the barcode is analyzed to grasp the arrangement of bars and spaces, and data is acquired by a known method based on the arrangement.

  In the case of the second mode described later, for example, an operation on the operation unit 100 is invalidated. Specifically, in the second mode, the information code is read even if a predetermined operation on the operation unit 100 is not performed. For example, the imaging process by the imaging unit 23 from the time when the second mode is entered after the power is turned on (for example, when the sensor unit 42 described later stops detecting a predetermined state (the state where the case 3 is separated from the placement surface)). Is continuously performed, and when a captured image of the information code is obtained by such continuous imaging processing, the information code is decoded.

  As shown in FIGS. 12 and 13, the case 3 has a predetermined direction orthogonal to the vertical direction as the longitudinal direction, and the pair of first side wall portions 3 d and 3 e face each other in the longitudinal direction. Each of the pair of first side wall portions 3d and 3e forms part of the side wall portion 3c and extends linearly in the short direction (front-rear direction). Further, the pair of second side wall portions 3f and 3g face each other in the vertical direction and the short direction perpendicular to the longitudinal direction. Each of the pair of second side wall portions 3f and 3g forms part of the side wall portion 3c and extends linearly in the longitudinal direction (lateral direction).

  As shown in FIG. 14, the operation unit 100 has a longer distance in the longitudinal direction of the case 3 to the center position of the case 3 in the longitudinal direction than a distance to each of the pair of first side wall portions 3 d and 3 e. It is arranged closer to the center position so as to be smaller. In FIG. 14, the center position in the longitudinal direction is indicated by a one-dot chain line A1, and the center position in the short direction is indicated by a one-dot chain line A2. Specifically, the distance from the button part 101 constituting the operation part 100 to the longitudinal center position A1 is smaller than the distance from the button part 101 to the first side wall part 3d, and from the button part 101 to the first position. It is smaller than the distance to 1 side wall part 3e. And the button part 101 which comprises the operation part 100 is arrange | positioned in the position away from a pair of 2nd side wall parts 3f and 3g.

  Further, in this configuration, on either one side of the pair of first side wall portions 3d and 3e (specifically, on the first side wall portion 3e side), at least from the first side wall portion on one side to the outside of the case 3. The cable 110 is arranged in an extending manner. The operation unit 100 is configured such that the entire button unit 101 is located on the other side of the pair of first side wall parts 3d and 3e (specifically, the first side wall part) with respect to the center position A1 in the longitudinal direction of the case 3. 3d side). Further, as shown in FIG. 14, when the entire range in the short direction of case 3 is L1, and a range of 70% closer to the center in the short direction (a range of 70% of the length of L1) is L2, the operation is performed. It is desirable that the button part 101 constituting the part 100 is within the range of L2.

  Further, in this configuration, the control circuit 40 corresponds to a mode switching unit, and a predetermined operation (for example, a pressing operation) is performed on the operation unit 100 in the information code reading control mode performed by the imaging unit 23 and the reading unit. It is possible to switch between the first mode in which the information code is read on the condition that the information code is read and the second mode in which the information code is read without performing a predetermined operation (for example, a pressing operation) on the operation unit 100. ing.

  Specifically, the sensor unit 42 is configured to detect a predetermined state in which the case 3 is separated from the placement surface F, and the control circuit 40 corresponding to the mode switching unit is detected by the sensor unit 42 in a predetermined state ( When the state in which the case 3 is separated from the placement surface) is detected, the mode is switched to the first mode, and when the predetermined state is not detected by the sensor unit 42, the mode is switched to the second mode. For example, when the sensor unit 42 is configured as a distance sensor and the direction from the predetermined position of the bottom wall 3b (lower surface) to the one side in the vertical direction (downward) is the detection direction, the bottom surface 3b The distance in the vertical direction to the facing object can be detected. When configured in this way, the case 3 is separated from the placement surface F when the distance detected by the sensor unit 42 (the distance to the object on the lower surface side of the bottom wall 3b) is equal to or greater than a predetermined threshold. When the distance detected by the sensor unit 42 (the distance to the object on the lower surface side of the bottom wall 3b) is less than a predetermined threshold, the case 3 is separated from the placement surface F. What is necessary is just to determine with the state which is not (it is not "predetermined state"). That is, in this configuration, when the distance detected by the sensor unit 42 is equal to or greater than the threshold, the control circuit 40 sets the first mode, and when the distance detected by the sensor unit 42 is less than the threshold, the control is performed. The circuit 40 is set to the second mode.

  In addition, although the example which switches between 1st mode and 2nd mode was shown here, the structure for switching is not restricted to the example mentioned above. For example, the second mode may be set as a default after power-on, and the first mode may be switched when the operation unit 100 is operated once.

(Example of effects of this configuration)
According to the reading device 1 according to this configuration, the reading on the mounting surface F and the reading on the hand can be performed. For example, when placed on the placement surface F and used, the reading port 5 is disposed on the upper side, so that it is easy to perform a reading operation such as placing the information code C on the upper surface side. In addition, since the operation unit 100 is arranged on the bottom wall (lower surface) 3b of the case 3 so that the operation from the outside of the case 3 can be performed, The operation unit 100 can be operated, and reading-related work using the operation unit 100 can be easily performed. For example, when reading-related work is performed with the reading port 5 directed downward in the vertical direction, it becomes easier to operate the operation unit 100 disposed on the vertical upper side with a finger. Can be performed efficiently. The same effect can be obtained in other gripping postures.

  The operation unit 100 is configured as a trigger button serving as a start condition for at least one of the imaging process by the imaging unit 23 and the reading process by the reading unit. In this configuration, when the apparatus is gripped and used, a trigger operation can be performed while gripping, and at least one of the imaging process and the reading process can be smoothly started by a trigger operation on the operation unit 100.

  Specifically, when reading work at a store, etc., it can be used in a stationary state when the user should hesitate to use it, and the label or license placed on the counter stand etc. can be used by hand. When the user wants to read the information, the user can smoothly perform the reading operation by turning the placed device upside down and holding it. In addition, since the reading trigger operation can be smoothly performed by the operation unit 100, the convenience for the user is enhanced.

  In addition, the present configuration includes a reflective surface 29 a that is disposed on the lower side of the reading port 5 inside the case 3 and is inclined with respect to a plane direction perpendicular to the vertical direction. A reflection member 29 is provided for reflecting light entering through the reading port 5 by the reflection surface 29a. The image forming unit 27 is configured to guide the light that has entered through the reading port 5 from the outside of the case 3 and reflected by the reflecting member 29 to the imaging unit 23.

  In this way, the reflecting member 29 is interposed in the case 3, and the path of the visual field range that extends from the imaging unit 27 to the outside of the case 3 (that is, the path that guides the light entering from the reading port 5 to the imaging unit 27). 3, even if the thickness of the case 3 is not increased so much, the distance from the optical system to the reading port 5 (until the light entering from the reading port 5 enters the imaging unit 27). It is easy to ensure a large (path length). As a result, it is possible to reduce the thickness of the case 3 by reducing the thickness of the case 3 while ensuring a larger visual field range near the reading port 5. In addition, by reducing the size as described above, it is possible to easily perform an operation while gripping. For example, it becomes very easy to perform a fine alignment operation or work in a narrow place. Furthermore, since the case 3 is thinned, the apparatus is easier to grip and can be operated with respect to the operation unit 100 as compared with a configuration having a large thickness.

  The information code reading control mode performed by the imaging unit 23 and the reading unit includes a first mode in which the information code is read on the condition that a predetermined operation is performed on the operation unit 100, and the operation unit 100. A mode switching unit that can be switched to the second mode in which the information code is read even if the predetermined operation is not performed.

  According to this configuration, the mode switching unit switches between a mode in which reading is performed using the operation unit 100 (first mode) and a mode in which reading is performed without using the operation unit 100 (second mode). Therefore, whether or not to use the operation unit 100 can be switched to the user according to the application.

  The case 3 includes a sensor unit 42 that detects a predetermined state in which the case 3 is separated from the placement surface F, and the mode switching unit switches to the first mode when the predetermined state is detected by the sensor unit 42, and the sensor unit 42 determines the predetermined state. When the state is not detected, the configuration is switched to the second mode. In this configuration, when the case 3 is gripped by the user and the case 3 is separated from the placement surface F (as shown in FIGS. 12 and 13), the state is detected by the sensor unit 42, and the mode is switched. The unit can automatically switch to the first mode (a mode in which the information code is read on condition that a predetermined operation is performed on the operation unit 100). Therefore, when the user grasps the case 3 and performs reading, the user can use the operation unit 100 to perform reading without forcing a complicated operation as much as possible.

  Further, when the case 3 is not gripped by the user and the case 3 is placed on the placement surface F (as shown in FIG. 4), the mode switching unit automatically causes the second mode (operation unit). The information code can be read even if a predetermined operation is not performed on 100. Therefore, when the user performs reading while placing the case 3 without gripping the case 3, the user can operate the system without using the operation unit 100 without forcing a complicated operation as much as possible.

  In addition, the case 3 has a predetermined direction perpendicular to the vertical direction as a longitudinal direction, the pair of first side wall portions 3d and 3e face each other in the longitudinal direction, and a pair of first side walls in the short direction perpendicular to the vertical direction and the longitudinal direction. 2 side wall parts 3f and 3g are facing. The operation unit 100 is closer to the center position in the longitudinal direction of the case 3 so that the distance to the center position of the case 3 in the longitudinal direction is smaller than the distance to each of the pair of first side wall portions 3d and 3e. It is arrange | positioned and it is arrange | positioned in the position away from a pair of 2nd side wall part 3f, 3g.

  When configured in this manner, when the case 3 is gripped so as to sandwich both lateral ends of the case 3 as shown in FIGS. 12 and 13 (for example, one second side wall 3f, 3g is received by the thumb F1, A position where the second side wall portions 3f and 3g are gripped so as to be received by the middle finger F3, the ring finger F4, the little finger F5, etc. It becomes a relationship.

  Further, in this configuration, the cable 110 is arranged so as to extend to the outside of the case 3 on either one of the pair of first side wall portions 3d and 3e (specifically, on the first side wall portion 3e side). . The operation unit 100 is disposed closer to one of the pair of first side wall portions 3d and 3e (specifically, the first side wall portion 3d side) than the center position in the longitudinal direction of the case 3. ing. In this configuration, as shown in FIGS. 12 and 13, when the case 3 is gripped so that both ends in the short direction of the case 3 are sandwiched and the cable is arranged on the wrist H side, fingers that are not used for gripping are used. The positional relationship is such that the operation unit 100 can be easily operated with (for example, an index finger). That is, it becomes easy to operate the operation unit 100 with a finger when the cable 110 is in a gripping state that is as difficult as possible.

[Other Embodiments]
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  Although the example which can use together the method of mounting on a mounting surface and the method which a user holds and uses as a stationary structure was shown, methods other than these two methods (method of attaching to a wall and using) are available. The structure which can be used together may be sufficient.

  In the said embodiment, although the example which provided the operation part 100 comprised as a trigger button in the lower surface part of case 3 was shown, the arrangement position of the operation part 100 is not limited to the bottom wall part 3b (lower surface part), It suffices that the outer surface of the case 3 is arranged so that it can be operated from the outside of the case 3 at a position other than the reading side wall 3a (upper surface). In any case, it can be used as a trigger button that is a starting condition for at least one of the imaging process by the imaging unit 23 and the reading process by the reading unit.

  In the above embodiment, an example in which the imaging process by the imaging unit 23 is started when a predetermined operation is performed on the operation unit 100 has been described. However, the imaging process is continuously performed before the predetermined operation on the operation unit 100 is performed. The reading process may be executed so as to analyze the captured image when the predetermined operation is performed on the operation unit 100. Alternatively, the illumination light source 21 may be turned on when a predetermined operation is performed on the operation unit 100 in a situation where the illumination light source 21 is turned off.

  In the above-described embodiment, an example in which the sensor unit 46 detects a predetermined state (a state where the case 3 is separated from the placement surface) has been described, but the detection may be performed by other methods. For example, the sensor unit 46 may be configured as a contact sensor and may be disposed at a position where it can come into contact with the placement surface. In this case, when the contact state is detected by the sensor unit 46, it is determined that the state is not the predetermined state (the case 3 is away from the placement surface), and the contact state is not detected by the sensor unit 46. May be determined as being in a predetermined state (a state in which the case 3 is separated from the placement surface).

DESCRIPTION OF SYMBOLS 1 ... Stationary-type information code reader 3 ... Case 3a ... Reading side wall part (upper surface part)
3b ... bottom wall (lower surface)
3d, 3e ... 1st side wall part 3f, 3g ... 2nd side wall part 5 ... Reading port 23 ... Imaging part 27 ... Imaging part 29 ... Reflective member 29a ... Reflecting surface 40 ... Control circuit (reading part, mode switching part)
42 ... Sensor unit 100 ... Operation unit 110 ... Cable AR1 ... First field of view range (field of view range)
AR2 ... 2nd visual field range (visual field range)
C ... Information code F ... Mounting surface

Claims (7)

An information code reader that can be used by being placed on a placement surface,
On one side in the predetermined vertical direction, an upper surface portion on which a reading port serving as a light entrance / exit is formed is provided, and on the other side in the vertical direction, the placement surface side is placed when placing on the placement surface. A box-like case provided with a lower surface facing the
An imaging unit housed in the case;
An imaging unit that defines a visual field range that can be imaged by the imaging unit, and that forms an image of the information code on the imaging unit when an information code is arranged in the visual field range outside the case;
A reading unit that analyzes a captured image of the information code and performs a reading process when an information code is imaged by the imaging unit;
In the lower surface portion, an operation portion arranged to be operable from the outside of the case;
With
The case is formed such that a distance between the upper surface portion and the lower surface portion is shorter than a short side of the upper surface portion ,
The information code reading control mode performed by the imaging unit and the reading unit is set to a first mode in which the information code is read on condition that a predetermined operation is performed on the operation unit, and to the operation unit. An information code reading apparatus comprising: a mode switching unit capable of switching to a second mode in which an information code is read without performing a predetermined operation . An information code reader that can be used by being placed on a placement surface,
On one side in the predetermined vertical direction, an upper surface portion on which a reading port serving as a light entrance / exit is formed is provided, and on the other side in the vertical direction, the placement surface side is placed when placing on the placement surface. A box-like case provided with a lower surface facing the
An imaging unit housed in the case;
An imaging unit that defines a visual field range that can be imaged by the imaging unit, and that forms an image of the information code on the imaging unit when an information code is arranged in the visual field range outside the case;
A reading unit that analyzes a captured image of the information code and performs a reading process when an information code is imaged by the imaging unit;
It is arranged so that an operation from the outside of the case can be performed at a position other than the upper surface portion in the outer surface portion of the case, and at least one of the start conditions of the imaging process by the imaging unit or the reading process by the reading unit; An operation unit configured as a trigger button,
With
The case is formed such that a distance between the upper surface portion and the lower surface portion is shorter than a short side of the upper surface portion ,
The information code reading control mode performed by the imaging unit and the reading unit is set to a first mode in which the information code is read on condition that a predetermined operation is performed on the operation unit, and to the operation unit. An information code reading apparatus comprising: a mode switching unit capable of switching to a second mode in which an information code is read without performing a predetermined operation .   2. The information code reading apparatus according to claim 1, wherein the operation unit is configured as a trigger button serving as a start condition of at least one of an imaging process by the imaging unit and a reading process by the reading unit. A reflective surface is disposed inside the case below the reading port and is inclined with respect to a plane direction perpendicular to the vertical direction, and is provided from the outside of the case via the reading port. A reflection member that reflects light entering the reflection surface;
4. The imaging unit according to claim 1, wherein the imaging unit is configured to guide light that has entered from the outside of the case through the reading port and reflected by the reflecting member to the imaging unit. The information code reading device according to any one of the above. The case includes a sensor unit that detects a predetermined state separated from the placement surface,
The mode switching unit switches to the first mode when the predetermined condition is detected by the sensor unit, and wherein the switching Rukoto to the second mode when the predetermined condition by the sensor unit is not detected The information code reading device according to any one of claims 1 to 4. In the case , a predetermined direction orthogonal to the vertical direction is a longitudinal direction, a pair of first side wall portions are opposed to each other in the longitudinal direction, and a pair of second sidewalls are orthogonal to the vertical direction and the longitudinal direction. The side walls are facing,
The operation portion is closer to the center position in the longitudinal direction of the case so that the distance to the center position of the case in the longitudinal direction is smaller than the distance to each of the pair of first side wall portions. It is arranged, and an information code reading apparatus according to any one of claims 1 to 5, characterized that you have been located away from the pair of the second side wall portion. A cable is disposed on either side of the pair of first side wall portions so as to extend to the outside of the case.
The information code according to claim 6 , wherein the operation portion is disposed closer to one of the pair of first side wall portions than the center position in the longitudinal direction of the case. Reader.

Images