CN-114781411-B - Reading device

CN114781411BCN 114781411 BCN114781411 BCN 114781411BCN-114781411-B

Abstract

The invention discloses a reading device which does not cause dazzling of a user, and is used for obtaining information of specified commodity. The housing has a reading window having a property of transmitting light. An imaging unit is incorporated in the housing and images an image through the reading window. The main illumination unit irradiates an imaging object located on the opposite side of the imaging unit with respect to the reading window by emitting light to the outside of the housing, and is disposed on the upper edge of the reading window. The auxiliary illumination unit irradiates the imaging object by emitting light to the outside of the housing through the reading window, and is disposed inside the main illumination unit.

Inventors

HARADA SHINTARO
Vow that Shima letter is situated between
YAMADA YOSHIYA
NAITO HIDEHIRO

Assignees

东芝泰格有限公司
东芝泰格有限公司

Dates

Publication Date: 20260421
Application Date: 20211013
Priority Date: 20210122

Claims (6)

1. A reading apparatus for obtaining information specifying a commodity, comprising: a housing having a reading window having a property of transmitting light, and a portion surrounding the reading window protruding outward; An imaging unit which is built in the housing and images an imaging object located outside the housing through the reading window; A main illumination unit for illuminating the imaging object, the main illumination unit being disposed on an upper edge portion of the reading window in the portion protruding outward around the reading window and being inclined so as to gradually separate from the housing while light emitted from the portion goes downward from above the reading window, and An auxiliary illumination unit that irradiates the imaging object by emitting light toward the outside of the housing through the reading window, The main illumination unit illuminates a space outside the housing and in front of the reading window for a user by emitting light to the outside of the housing without passing through the reading window, The auxiliary illumination unit is provided near the upper side of the reading window of the housing, emits light to the outside of the housing through the reading window, is provided so as to be inclined so that the emitted light gradually gets away from the housing while going downward from above the reading window, and illuminates a space closer to the reading window than the space illuminated by the main illumination unit.
2. The reading apparatus according to claim 1, wherein, The main illumination unit includes a light source and a reflection unit provided at least in part around the light source, and reflects light emitted from the light source and then directs the light to the imaging object.
3. The reading apparatus according to claim 2, wherein, The light source is arranged in a plurality in a lateral direction, The reflecting part is arranged above and below the light source.
4. The reading apparatus according to claim 1, wherein, The main illumination unit includes a first light source and a first driving unit for adjusting the light quantity of the first light source, and the auxiliary illumination unit includes a second light source and a second driving unit for adjusting the light quantity of the second light source, the second driving unit being operated independently of the first driving unit.
5. The reading apparatus according to claim 4, further comprising: A first diffusion member for diffusing the entire light from the first light source, and a second diffusion member for diffusing the entire light from the second light source.
6. The reading apparatus according to claim 1, further comprising: And a shielding part for shielding the light which is outside the shell and does not sandwich the reading window.

Description

Reading device The present application claims priority from Japanese application of application No. JP2021-008747, 22, 1 of 2021, and the disclosure of which is incorporated herein by reference in its entirety. Technical Field Embodiments of the present invention relate to a reading apparatus. Background Conventionally, sales data processing apparatuses such as POS (Point Of sale) terminals are provided with a reading device for acquiring code images such as bar codes and two-dimensional codes or images Of the appearance Of products as information for specifying the products. The reader is provided with an imaging unit including an image sensor, etc., and images of code images and images of the surface of the commodity are captured through a transparent reading window provided in a portion of the casing. The conventional reading device described above includes a light source (LED (LIGHT EMITTING Diode) or the like) for irradiating a code image to be read or a surface of a commodity in the case at the time of image capturing. When the light source is made to emit light to a sufficiently read extent, the user is dazzled, which is very undesirable. Disclosure of Invention In view of the foregoing, an object of the present invention is to provide a reading device that does not cause a user to feel dazzling. In order to solve the above-described problems, an embodiment of the present invention provides a reading apparatus for obtaining information of a specific commodity, which includes a housing, an imaging unit, a main illumination unit, and an auxiliary illumination unit. The housing has a reading window having a property of transmitting light. An imaging unit is incorporated in the housing and images an image through the reading window. The main illumination unit irradiates an imaging object located on the opposite side of the imaging unit with respect to the reading window by emitting light to the outside of the housing, and is disposed on the upper edge of the reading window. The auxiliary illumination unit irradiates the imaging object by emitting light to the outside of the housing through the reading window, and is disposed inside the main illumination unit. According to the reading device described above, it is possible to provide a reading device that is difficult to make a user feel dazzled. In the above-described reading device, the main illumination portion is provided so as to be inclined away from the housing gradually while the emitted light is directed downward from above the reading window. According to the above-described reading apparatus, even if the output of the light source is set lower than before, a sufficient reading performance can be ensured up to a range slightly apart from the reading window. In the above-described reading apparatus, the main illumination unit may include a light source and a reflection unit provided around at least a part of the light source, and the reflection unit may reflect light emitted from the light source and then face the imaging object. According to the reading apparatus described above, the light that irradiates the imaging object can be increased. In the reading device, a plurality of light sources are arranged in a lateral direction, and the reflecting portions are provided above and below the light sources. According to the reading apparatus described above, the light that irradiates the imaging object can be increased. In the above-described reading device, a portion of the housing surrounding the reading window protrudes to an opposite side of the imaging section through the reading window. According to the reading device, the commodity is difficult to touch the reading window. In the above-described reading device, the main illumination unit includes a first light source and a first driving unit for adjusting the light quantity of the first light source, and the auxiliary illumination unit includes a second light source and a second driving unit for adjusting the light quantity of the second light source, the second driving unit being operated independently of the first driving unit. According to the reading apparatus described above, the commodity can be irradiated with an appropriate light amount in a range up to a vicinity slightly distant from the reading window. The reading device further includes a first diffusion member that diffuses light from the entire first light source and a second diffusion member that diffuses light from the entire second light source. According to the reading device described above, the user does not directly see the light of the light source and thus is not blinded. The reading device further includes a shielding portion for shielding light which is outside the casing without the reading window. According to the reading device described above, the inner surface of the housing is less likely to be irradiated, so that the light reflected by the inner surface of the housing can be suppressed from entering the imaging