CN214376521U - Light emitting module and portable scanning device - Google Patents
Light emitting module and portable scanning device Download PDFInfo
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- CN214376521U CN214376521U CN202022840523.0U CN202022840523U CN214376521U CN 214376521 U CN214376521 U CN 214376521U CN 202022840523 U CN202022840523 U CN 202022840523U CN 214376521 U CN214376521 U CN 214376521U
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- 230000008901 benefit Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 238000012015 optical character recognition Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/12—Use of codes for handling textual entities
- G06F40/126—Character encoding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/40—Processing or translation of natural language
- G06F40/58—Use of machine translation, e.g. for multi-lingual retrieval, for server-side translation for client devices or for real-time translation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Abstract
An embodiment of the utility model provides a light emitting module and portable scanning equipment, wherein the light emitting module includes: a first light source emitting a first wavelength driven by a first polarity voltage; and a second light source emitting a second wavelength driven by a second polarity voltage. According to the utility model discloses embodiment's luminous module can realize the effect of the multiple light source of transmission, is favorable to enlarging luminous module's range of application.
Description
Technical Field
The utility model discloses an embodiment relates to light emitting equipment technical field, more specifically, the utility model discloses an embodiment relates to a light emitting module and portable scanning equipment.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein may include concepts that could be pursued, but are not necessarily ones that have been previously conceived or pursued. Thus, unless otherwise indicated herein, what is described in this section is not prior art to the description and claims in this application and is not admitted to be prior art by inclusion in this section.
With the continuous development of information technology and hardware technology, the demands of users for miniaturization and portability of devices are increasing, and the demands for multiple functions of devices are also becoming stronger. The advent of portable scanning devices with scanning capabilities (e.g., wand, etc.) has greatly enhanced the user experience with scanning capabilities. Several multifunctional portable scanning devices have appeared, such as a point-and-read pen, a point-and-read machine or a dictionary pen. However, the current reading pen only has the reading function and no translation function, and the dictionary pen only has the translation function and no reading function.
SUMMERY OF THE UTILITY MODEL
Known portable scanning devices are often single-function or, even with multiple functions, are difficult to switch between multiple functions conveniently, which is a very annoying process.
Therefore, there is a need for an improved portable scanning device, so that the portable scanning device can have multiple functions and can be conveniently switched between multiple function modes, and the technical problem that the existing portable scanning device has a single function is solved to some extent.
In this context, embodiments of the present invention desirably provide in one aspect a portable scanning device that can be adapted to different application scenarios (e.g., point-and-read, translation, etc.) to have multiple functional modes. To this end, it is also desirable in another aspect to provide a light emitting module that can emit multiple light sources and, when used on a portable scanning device, can assist the portable scanning device in achieving multiple functional modes.
In a first aspect of the embodiments of the present invention, there is provided a light emitting module, including: a first light source emitting a first wavelength driven by a first polarity voltage; and a second light source emitting a second wavelength driven by a second polarity voltage.
In an embodiment of the present invention, the first light source is infrared light, and the second light source is visible light.
In another embodiment of the present invention, the first wavelength is 850 to 900 nm.
In another embodiment of the present invention, the exit surface of the light emitting module is a plane or a convex surface.
In a second aspect of the embodiments of the present invention, a portable scanning device is provided, which includes a light emitting module according to any one of the first aspect of the present invention.
In an embodiment of the present invention, the portable scanning device further includes: the processor is connected with the light-emitting module and used for controlling the light-emitting module to emit the first light source or the second light source; and the image acquisition unit is used for acquiring images under the irradiation of the first light source or the second light source emitted by the light-emitting module.
In another embodiment of the present invention, the portable scanning device includes a plurality of light emitting modules, and the plurality of light emitting modules are uniformly arranged around the image capturing unit.
In another embodiment of the present invention, the portable scanning device includes an even number of light emitting modules, and the even number of light emitting modules are symmetrically disposed at both sides of the image capturing unit.
In another embodiment of the present invention, the even number of light emitting modules is two light emitting modules, and the two light emitting modules are arranged on two sides of the image capturing unit relative to the image capturing unit.
In an embodiment of the present invention, the light emitting module is attached to the circuit board of the portable scanning device through a side surface thereof.
According to the utility model discloses embodiment's light emitting module can launch first light source or launch the second light source under second polarity voltage drive under first polarity voltage drive to can realize the effect through a light emitting module transmission multiple light source, be favorable to enlarging light emitting module's range of application. Especially, the light-emitting module controlled by a single control mode has the characteristics of simple structure, small volume, light weight and the like. In some embodiments, the light emitting module can emit infrared light with a wavelength of 850-900 nm, so that the light emitting module can be applied to a point-reading application scene.
Further, the utility model discloses portable scanning equipment of embodiment is including the luminous module that can launch two kinds at least light sources for this portable scanning equipment can be applied to at least in the application scenes such as reading, translation and scanning. In some embodiments, the light emitting modules are uniformly arranged around the image capturing unit or symmetrically arranged on two sides of the image capturing unit, which is beneficial to improving the uniformity of illumination on the scanning medium, thereby being beneficial to the image capturing unit to capture a clearer image.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
fig. 1 schematically shows a circuit driving schematic diagram of a light emitting module suitable for implementing an embodiment of the present invention;
fig. 2a and 2b schematically show a schematic shape of an exit face of a light emitting module according to an embodiment of the present invention;
fig. 3 schematically shows a schematic view of a portable scanning device suitable for implementing an embodiment of the invention;
fig. 4 schematically shows a schematic view of a portable scanning device according to another embodiment of the invention;
fig. 5 schematically shows a schematic view of a portable scanning device comprising two light emitting modules according to the present invention; and
fig. 6 schematically shows a schematic view of a portable scanning device comprising obliquely arranged light emitting modules according to an embodiment of the invention.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It should be understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and thereby implement the present invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Summary of the utility model
The applicant finds that when the portable scanning device with the point reading function is pressed or scans the point reading book, the point reading function can be realized by identifying the image of the invisible coding information on the point reading book. The characters, patterns and the like on the reading book can be printed by ink which can transmit infrared rays, so that the characters, patterns and the like on the reading book can be transparent under the irradiation of infrared rays. Therefore, the portable scanning device with the point reading function can acquire the image only containing the invisible coding information in a mode of emitting infrared light. The applicant has also found that a portable scanning device can implement a scanning function or a translation function by acquiring an image of text content on a scanning medium under illumination by visible light and recognizing the acquired image of text content using, for example, Optical Character Recognition (OCR) technology.
Therefore, different hardware or software operations are generally required to be executed when the portable scanning device realizes different functions, so that the general portable scanning device is difficult to have multiple functions which need different software and hardware supports, and the light emitting part is difficult to have illumination conditions when the functions are different. Even with a portable scanning device having multiple functions, it is generally necessary to additionally provide a plurality of light emitting parts that emit different light sources from each other to satisfy different lighting conditions required for different functions.
Based on the principle of introducing above, the utility model aims at providing a can launch the luminous module of multiple light source and including the portable scanning equipment of this luminous module, through the luminous module different light sources of transmission under different functional mode come the automatic execution or the switching that portable scanning equipment realized multi-functional mode to provide one kind and have concurrently and click to read and translate multi-functional portable scanning equipment etc..
Having described the basic principles of the present invention, various non-limiting embodiments of the invention are described in detail below. According to the utility model discloses an embodiment provides a luminous module and portable scanning equipment. Moreover, any number of elements in the drawings are by way of example and not by way of limitation, and any nomenclature is used solely for differentiation and not by way of limitation.
The principles and spirit of the present invention are explained in detail below with reference to a number of representative embodiments of the invention.
Exemplary device
Referring first to fig. 1, a circuit driving schematic diagram of a light emitting module suitable for implementing embodiments of the present invention is shown. In a first aspect of the present invention, a light emitting module is provided, which can emit a first light source of a first wavelength under the driving of a first polarity voltage; and a second light source emitting a second wavelength driven by a second polarity voltage. For example, as shown in fig. 1, the driving circuit of the light emitting module 100 may include a first terminal 110 and a second terminal 120, which are respectively used for inputting voltages with different polarities to drive the circuit; a first device 130 for unidirectionally conducting a first line, which may be a line for emitting a first light source, and a second device 140 for unidirectionally conducting a second line, which may be a line for emitting a second light source, may also be included.
In some embodiments, the first device 130 and the second device 140 may be devices having both a light emitting function and a unidirectional conductive function, for example, the first device 130 may be a first light emitting diode (or chip) for emitting a first light source, and the second device 140 may be a second light emitting diode (or chip) for emitting a second light source.
According to the utility model discloses a some embodiments, first polarity voltage and second polarity voltage can be same polarity voltage or equidirectional voltage, can realize the control respectively of launching first light source and launching the second light source through the circuit of the first polarity voltage drive of independent control and the circuit of second polarity voltage drive. According to the utility model discloses a in other embodiments, first polarity voltage and second polarity voltage can be different polarity voltage or not equidirectional voltage, can switch different routes in the circuit through single control mode, realize the overall control to launching first light source or second light source. For example, as shown in fig. 1, in some embodiments, when the first terminal 110 is used for inputting a forward voltage (i.e., the first terminal 110 has a positive polarity and the second terminal 120 has a negative polarity), the second line on which the second device 140 is located is turned on, and the first line on which the first device 130 is located is turned off, and at this time, the second device 140 or the second light emitting element on the second line may emit the second light source. In other embodiments, when the second terminal 120 is used for inputting a reverse voltage (i.e., the second terminal 120 has a positive polarity, and the first terminal 110 has a negative polarity), the first line on which the first device 130 is located is turned on, and the second line on which the second device 140 is located is turned off, so that the first device 130 or the first light emitting device on the first line can emit the first light source.
The first light source and the second light source may be light sources with different wavelengths, for example, in an embodiment of the present invention, the first light source may be infrared light, far infrared light, ultraviolet light, or the like, and the second light source may be visible light, or the like. Further, in another embodiment of the present invention, the first wavelength may be 850-900 nm, and the infrared light in this wavelength range may penetrate through, for example, characters and patterns on the reading book, so that the infrared light may be used in an application scenario of reading the book. In still other embodiments, the second wavelength may be 400nm to 800nm, and the visible light in the wavelength range may be used for general lighting or in scenes requiring supplementary lighting.
While the structure and principle of the light emitting module according to the present invention have been described in conjunction with the circuit diagram of fig. 1, it will be understood by those skilled in the art that the above description is exemplary and not restrictive, for example, the forward voltage and the reverse voltage described above are relative, and the voltage input when the first terminal 110 is a negative electrode and the second terminal 120 is a positive electrode may be set as a forward voltage according to the requirement. The directions of the first device 130 and the second device 140 may not be limited to those shown in the drawings, and in other embodiments, may be set to be opposite to the arrangement direction shown in fig. 1. For example, the light emitting module may not be limited to emitting only the first light source and the second light source, but may include emitting more kinds of light sources as needed. In still other embodiments, the light emitting module may further include a housing or a package to seal the driving circuit and protect the driving circuit, and the housing or the package may have a light transmitting property or a partially light transmitting property, so that the light emitted from the light emitting module can be emitted and form an exit surface on the housing or the package. The light-emitting surface of the light-emitting module for emitting light will be described in an exemplary manner with reference to fig. 2a and 2 b.
Fig. 2a and 2b schematically show a schematic shape diagram of an exit surface of a light emitting module according to an embodiment of the present invention. The emitting surface of the light emitting module may be a surface from which the light source emitted by the light emitting module can emit. As shown in fig. 2a, the exit surface 210 of the light emitting module 200a may be a plane, and the first light source or the second light source emitted from the light emitting module 200a may exit from the exit surface 210a (the exit direction can be seen as an arrow connected to the exit surface 210a in the figure). In some embodiments, the angle of view of the light source exiting through exit face 210a may be up to 120 °.
As shown in fig. 2b, the exit surface 210b of the light emitting module 200b may be a convex surface, and the first light source or the second light source emitted from the light emitting module 200b may be emitted from the exit surface 210b (the emission direction can be shown by an arrow connected to the exit surface 210b in the figure). In some embodiments, the angle of viewing of the light source exiting via exit face 210b may be greater than 120 °.
While the structure of the emitting surface of the light emitting module according to the embodiment of the present invention has been described above with reference to fig. 2a and 2b, it is understood that the shapes shown in the drawings are exemplary and not limiting, and those skilled in the art can adjust and set the curvature of the convex surface, the width of the light emitting module, etc. as required.
Through the foregoing, the utility model discloses a light emitting module's technical scheme and the description of a plurality of embodiments, can understand, the utility model discloses a light emitting module can drive different circuit paths through controlling first polarity voltage and second polarity voltage to can realize the purpose of the different light sources of same light emitting module transmission. In some embodiments, the present invention provides a light emitting module, such as that shown in fig. 1, which changes the voltage direction by switching the polarity of the first terminal and the second terminal in the circuit, so that the overall control of emitting the first light source or emitting the second light source can be realized, and such a control manner is simpler. Further, the utility model discloses still provide the embodiment that can change light source visual angle through the shape that changes the emitting surface of luminous module, the skilled in the art can select as required. According to the utility model discloses a light-emitting module can be applicable to in the application scene that needs multiple transmitting light source, for example this light-emitting module can be arranged in portable scanning equipment to can assist portable scanning equipment to realize multiple functions, will combine fig. 3-6 to describe in detail below.
Fig. 3 shows a schematic view of a portable scanning device suitable for implementing embodiments of the present invention. As shown in fig. 3, a portable scanning device 300 is provided, which may comprise a light emitting module 310 according to any one of the first aspect of the present invention. In some embodiments, portable scanning device 300 may include a portable scanning-enabled device such as a wand, a point-and-read pen, a point-and-read machine, a dictionary pen, a multi-function digital pen, or the like. In other embodiments, the portable scanning device 300 may include one or more light modules 310. The structure, principle, and the like of the light emitting module 310 have been described in detail in the foregoing with reference to fig. 1 and 2, and are not described in detail herein. For ease of understanding, the application of the light emitting module 310 in the portable scanning device 300 will be exemplarily described below.
The light emitting modules 310 described above may emit light sources with different wavelengths under the driving of voltages with different polarities, for example, in one embodiment, the light emitting modules 310 may emit visible light or infrared light. When the light emitting module 310 emits visible light, the portable scanning device 300 can be assisted to implement functional modes such as scanning and translation; when the light emitting module 310 emits infrared light, the portable scanning device 300 can be assisted to implement functional modes such as point reading. In other embodiments, the light emitting module 310 may be attached to a circuit board of the portable scanning device 300, so that the portable scanning device 300 can control the light emitting module. In still other embodiments, the portable scanning device may not be limited to including a light emitting module, but may also include a processor, an image capturing unit, and the like, as will be described below in conjunction with fig. 4.
Fig. 4 schematically shows a schematic view of a portable scanning device according to another embodiment of the invention. As shown in fig. 4, the portable scanning device 400 may further include: a processor 410, which may be connected to the light emitting module 310, and configured to control the light emitting module 310 to emit the first light source or the second light source; and an image capturing unit 420, which may be used to capture an image under the illumination of the first light source or the second light source emitted by the light emitting module 310. The processor 410 and the light emitting module 310 may be connected in a wired or wireless manner, and may be directly connected or indirectly connected.
As further shown in fig. 4, the processor 410 may also be connected to the image capturing unit 420 and may be configured to control the image capturing unit 420 to capture an image under illumination by the first light source or the second light source. The connection between the processor 410 and the image capturing unit 420 may be wired or wireless, and may be direct or indirect. In some application scenarios, the portable scanning device 400 may have a stylus so that when the stylus touches or presses the scanning medium, a sensing structure of the portable scanning device 400 is touched to generate a touch signal. In some embodiments, the processor 410 may be configured to: in response to the touch signal, the light emitting module 310 is controlled to emit the first light source or the second light source; and controlling the image collecting unit 420 to collect an image under the illumination of the first light source or the second light source. In other embodiments, processor 410 may be configured to: in response to the touch signal, the light emitting module 310 is controlled to randomly emit the first light source or the second light source. In still other embodiments, the processor 410 may be configured to: in response to the touch signal, the light emitting module 310 is controlled to emit the first light source or the second light source by default, and the light emitting module 310 is controlled to switch the light sources until the functional mode needs to be switched.
In another embodiment of the present invention, the processor 410 may be further configured to: identifying an image acquired via the image acquisition unit 420; and automatically control the portable scanning device 400 to enter a corresponding functional mode according to the content included in the recognized image. The corresponding functional mode may be a functional mode corresponding to the content included in the recognized image. For example, in one embodiment of the present invention, the identified image may include content including: the portable scanning device can have a point reading function, a translation function and the like correspondingly. In another embodiment of the present invention, the processor 410 may be further configured to: in response to the image containing the invisible encoding information, automatically controlling the portable scanning device 400 to enter a point-reading function mode; automatically controlling the portable scanning device 400 to enter a translation function mode in response to the image containing text content and not containing the invisible encoding information; and sending out reminding information in response to the fact that the image does not contain the invisible coding information and the text content.
In yet another embodiment of the present invention, the processor 410 automatically controlling entry into the point-to-read functional mode may include: controlling the light emitting module 310 to emit a first light source (e.g., infrared light); the image acquisition unit 420 is controlled to acquire an image of the invisible coding information under the irradiation of the first light source, and after the image of the invisible coding information is identified, the identified invisible coding information is decoded; and the processor 410 automatically controlling entry into the translation function mode may include: controlling the light emitting module 310 to emit a second light source (e.g., visible light); the image capture unit 420 is controlled to capture an image of the text content under the illumination of the second light source and recognize the image of the text content to translate the recognized text content.
Further, in yet another embodiment of the present invention, the portable scanning device 400 may further include: a speech output unit (not shown) may be coupled to the processor 410 and configured to execute corresponding voicing instructions based on the decoding of the identified steganographically encoded information. In one embodiment, the voice output unit may include an earphone, a speaker, a loudspeaker, or the like, for playing voice according to the pronunciation instruction. In another embodiment, the voice output unit may be further configured to issue a reminder message.
According to an embodiment of the present invention, the processor 410 may be further configured to: determining whether the brightness of the image is within a recognition threshold range; and adjusting the brightness of the captured image in response to the brightness of the image being outside the recognition threshold range. The processor 410 may control the image capture unit 420 to adjust, for example, the exposure time and gain value of the camera to achieve the purpose of adjusting the brightness of the captured image. The processor 410 may also control whether the light emitting module 310 emits light (e.g., visible light) and adjust the intensity of the emitted light to achieve the purpose of adjusting the brightness of the captured image, so as to ensure that the image capturing unit 420 can capture a clear and recognizable image.
In another embodiment of the present invention, the processor 410 may be further configured to: in response to the brightness of the image being below the recognition threshold lower limit, the brightness of the captured image is increased to enable the brightness of the captured image to be increased to a recognizable level. For example, the processor 410 may control the image capture unit 420 to increase, for example, the exposure time and gain value of the camera to achieve the purpose of increasing the brightness of the captured image. The processor 410 may also control the light emitting module 310 to emit light and increase the intensity of the emitted light to achieve the purpose of increasing the brightness of the captured image.
In yet another embodiment of the present invention, the processor 410 may be further configured to: and reducing the brightness of the acquired image in response to the brightness of the image being higher than the upper recognition threshold limit. For example, the processor 410 may control the image capture unit 420 to reduce, for example, the exposure time and gain values of the camera to achieve the goal of reducing the brightness of the captured image. The processor 410 may also control the light emitting module 310 to stop emitting light sources or may reduce the intensity of the emitted light sources to achieve the purpose of reducing the brightness of the captured image.
Further, in an embodiment of the present invention, the image capturing unit 420 may include: the camera can be used for collecting images under the irradiation of the first light source or the second light source. The number of the cameras can be set to be one or more according to the requirement. In another embodiment of the present invention, the image capturing unit 420 may include a camera, which may be used to capture images under the irradiation of multiple light sources, for example, the camera may capture images under the irradiation of visible light, or may capture images under the irradiation of invisible light (e.g., infrared light, far infrared light, ultraviolet light, etc.). In another embodiment of the present invention, the image capturing unit 420 may include a plurality of cameras, and each of the plurality of cameras is used for capturing images under illumination of a light source different from each other in type. For example, in one embodiment, the image acquisition unit 420 may include two cameras, wherein one camera may be used to acquire images under illumination by visible light and the other camera may be used to acquire images under illumination by non-visible light (e.g., infrared light, far infrared light, ultraviolet light, etc.). In another embodiment of the present invention, the image capturing unit 420 may further include an image sensor, which may be connected to the camera and may convert an optical image captured by the camera into a digital image, so as to facilitate recognition by the processor 410.
The portable scanning device 400 according to the embodiment of the present invention is described above with reference to fig. 4, and it can be understood by those skilled in the art that the above description is exemplary and not limiting, for example, the position relationship of each unit in the illustration is logical, and those skilled in the art can adjust the arrangement position and number of each unit as required. For example, the portable scanning device 400 of the present invention may not be limited to the one light emitting module 310 shown in fig. 4, and in some embodiments of the present invention, the portable scanning device 400 may include a plurality of light emitting modules 310. In some embodiments, each light module 310 of the plurality of light modules 310 of the portable scanning device 400 may be configured to emit at least two light sources to accommodate different functional modes. For example, in some application scenarios, multiple light emitting modules 310 may be controlled to emit the same light source at the same time. In other embodiments, each of the plurality of light emitting modules 310 of the portable scanning device 400 has a function of emitting a plurality of light sources, but in practical applications, each of the light emitting modules 310 may be configured to emit a light source with different kinds from each other according to requirements.
In another embodiment of the present invention, the portable scanning device 400 may include a plurality of light emitting modules 310, and the plurality of light emitting modules 310 may be uniformly arranged around the image capturing unit 420. The uniform arrangement may be understood as that the intervals between every adjacent two light emitting modules 310 of the plurality of light emitting modules 310 are equal. In some embodiments, the number of the light emitting modules 310 may be an odd number, which may be uniformly arranged around the image capturing unit 420. In other embodiments, the number of the light emitting modules 320 may be an even number, which may be uniformly arranged around the image capturing unit 420. The light-emitting modules which are uniformly arranged can enable the irradiation range and the irradiation intensity to be more uniform, and can reduce the generation of light spots on a scanning medium, thereby being beneficial to reducing the difficulty of image identification.
In still another embodiment of the present invention, the portable scanning device 400 may include an even number of the light emitting modules 310, and the even number of the light emitting modules 310 may be symmetrically disposed at both sides of the image capturing unit 420. The arrangement on both sides of the image capturing unit 420 may include arrangement side by side with the image capturing unit 420, and may also include arrangement above or below both sides of the image capturing unit 420. For ease of understanding, the following will exemplarily describe the arrangement of two light emitting modules in conjunction with fig. 5 and 6.
Fig. 5 schematically shows a schematic view of a portable scanning device comprising two light emitting modules according to the present invention. As shown in fig. 5, the portable scanning device 500 may include: an image capturing unit 420, a processor 410, a first light emitting module 510, and a second light emitting module 520. The image capturing unit 420 and the processor 410 are the same as or similar to those described above in connection with fig. 4, and thus are not described in detail here. It will be understood from the following description that the first light emitting module 510 and the second light emitting module 520 shown in fig. 5 can be an embodiment of the light emitting module 310 described above with reference to fig. 4, and therefore, the description of the light emitting module 310 in fig. 5 can also be applied.
As further shown in fig. 5, the first and second light emitting modules 510 and 520 may be symmetrically disposed at both sides of the image capturing unit 420. In some application scenarios, the first light emitting module 510 may be configured to emit visible light, and the second light emitting module 520 may be configured to emit infrared light or invisible light such as far infrared light, ultraviolet light, and the like. In other application scenarios, the first light emitting module 510 and the second light emitting module 520 may both be used to emit, for example, visible light and infrared light. According to such setting, first light emitting module 510 and second light emitting module 520 can emit the same light source simultaneously, and compare in the light emitting module and arrange the unilateral emission light source in image acquisition unit 420, the first light emitting module 510 and the second light emitting module 520 of symmetrical arrangement in image acquisition unit 420 both sides can make the illumination scope of production more even, are favorable to the image that image acquisition unit 420 gathered more clear and are changeed and discerned.
While the portable scanning device 500 including a plurality of light emitting modules has been described above with reference to fig. 5, it is to be understood that the portable scanning device 500 is illustrated as being exemplary and not limiting. For example, the number of the light emitting modules may not be limited to two in the drawings, and may be more or less as needed. The first light emitting module 510 and the second light emitting module 520 may not be limited to be disposed on both sides of the image capturing unit 420 in the illustration, but may be disposed on the same side of the image capturing unit 420 as needed. Also for example, the first and second light emitting modules 510 and 520 may not be limited to being arranged side by side with the image capturing unit 420 in the illustration, but may be arranged below both sides of the image capturing unit 420, for example. As will be described in connection with fig. 6.
Fig. 6 schematically shows a schematic view of a portable scanning device comprising obliquely arranged light emitting modules according to an embodiment of the invention. As shown in fig. 6, the portable scanning device 600 may include: an image capturing unit 420, a processor 410, and a first and a second light emitting module 610 and 620. The image capturing unit 420 and the processor 410 are the same as or similar to those described above in connection with fig. 4, and thus are not described in detail here. It will be understood from the following description that the first and second light emitting modules 610 and 620 shown in fig. 6 may be an embodiment of the light emitting module 310 described in conjunction with fig. 4 and the first and second light emitting modules 510 and 520 described in conjunction with fig. 5, and thus the description of the light emitting module 310 and the first and second light emitting modules 510 and 520 may also be applied to fig. 6.
As further shown in fig. 6, two light emitting modules (e.g., the first light emitting module 610 and the second light emitting module 620 in the illustration) may be disposed at both sides of the image capturing unit 420 to be inclined with respect to the image capturing unit 420, and the exit surfaces (surfaces from which light rays are emitted in the direction indicated by the arrow in the illustration) of the first light emitting module 610 and the second light emitting module 620 may be inclined toward the image capturing range of the image capturing unit 420. According to the arrangement, the light coverage rate of the image acquisition range can be improved, the illumination range on the scanning medium can be more uniform, and the influence of possibly formed light spots on image acquisition and image recognition can be reduced.
In some embodiments of the present invention, the first light emitting module 610 and the second light emitting module 620 may be disposed below both sides of the image capturing unit 420. The lower side described herein may be a direction in which the image acquisition unit 420 acquires an image (e.g., a direction of a camera), and the corresponding upper side may be a direction in which the image acquisition unit 420 does not acquire an image. The arrangement of the first light emitting module 610 and the second light emitting module 620 below two sides of the image capturing unit 420 can enable the emitted light to be irradiated on the scanning medium without being shielded, thereby being beneficial to reducing the generation of light spots.
Further, in another embodiment of the present invention, the light emitting module can be attached to the circuit board of the portable scanning device through the side surface thereof. For example, as shown in fig. 6, by attaching the side surfaces (or the side surfaces opposite to the exit surfaces) of the first light emitting module 610 and the second light emitting module 620 to the circuit board of the portable scanning device 600, it is convenient to implement the light sources emitted by the exit surfaces of the first light emitting module 610 and the second light emitting module 620 toward the scanning medium, and to make the arrangement and the overall structural layout of the circuit board in the portable scanning device 600 more reasonable. In still other embodiments, the mounting direction of the circuit board of the portable scanning device can be changed as needed, so that the light emitting module can be attached to the circuit board through the back surface of the emergent surface.
Through the foregoing, the utility model discloses a portable scanning device and description of a plurality of embodiments thereof can be understood, the utility model discloses a portable scanning device can be including the light emitting module that can launch multiple light source to satisfy the requirement to aspects such as kind and luminance of illumination light source when gathering the image in the different functional mode. In some embodiments, the portable scanning device of the present invention may further include an image capturing unit capable of capturing images under the irradiation of multiple light sources to adapt to the requirements of capturing images in different functional modes. Further, it is right through the utility model discloses a portable scanning device's treater is to image acquisition unit and light emitting module's control, makes the utility model discloses a portable scanning device can have click-to-read function and translation function concurrently. In other embodiments, the plurality of light emitting modules in the portable scanning device are uniformly or symmetrically arranged, so that the illumination range on the scanning medium is more uniform, and the definition and the identifiability of the acquired image are more favorably ensured.
It should be noted that although in the above detailed description several units or sub-components of the portable scanning device are mentioned, this division is only not mandatory. Indeed, the features and functions of two or more of the units described above may be embodied in one device or unit, according to embodiments of the invention. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of means or units.
Use of the verbs "comprise", "comprise" and their conjugations in this application does not exclude the presence of elements or steps other than those stated in this application. The article "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects may not be combined to benefit. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (10)
1. A light emitting module, comprising:
a first light source emitting a first wavelength driven by a first polarity voltage; and
a second light source emitting a second wavelength driven by a second polarity voltage;
wherein the first light source and the second light source are light sources having different wavelengths.
2. The illumination module as claimed in claim 1, wherein the first light source is infrared light and the second light source is visible light.
3. The light emitting module as set forth in claim 2, wherein the first wavelength is 850-900 nm.
4. The illumination module as claimed in any one of claims 1 to 3, wherein the exit surface of the illumination module is planar or convex.
5. A portable scanning device, characterized in that it comprises a light emitting module according to any one of claims 1 to 4.
6. The portable scanning device of claim 5, further comprising:
the processor is connected with the light-emitting module and used for controlling the light-emitting module to emit the first light source or the second light source; and
and the image acquisition unit is used for acquiring an image under the irradiation of the first light source or the second light source emitted by the light-emitting module.
7. The portable scanning device according to claim 6, characterized in that it comprises a plurality of light emitting modules, and that said plurality of light emitting modules are evenly arranged around said image acquisition unit.
8. The portable scanning device according to claim 6, characterized in that the portable scanning device comprises an even number of light emitting modules, and the even number of light emitting modules are symmetrically arranged on both sides of the image acquisition unit.
9. The portable scanning device according to claim 8, wherein the even number of light emitting modules is two light emitting modules, and the two light emitting modules are obliquely arranged on both sides of the image capturing unit with respect to the image capturing unit.
10. The portable scanning device of claim 5, wherein the light emitting module is attached to a circuit board of the portable scanning device by a side surface thereof.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2020110438446 | 2020-09-28 | ||
| CN202011043844 | 2020-09-28 |
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| CN202022840523.0U Active CN214376521U (en) | 2020-09-28 | 2020-11-30 | Light emitting module and portable scanning device |
| CN202011379944.6A Active CN113255653B (en) | 2020-09-28 | 2020-11-30 | Method for a portable scanning device and portable scanning device |
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| US7310605B2 (en) * | 2003-11-25 | 2007-12-18 | International Business Machines Corporation | Method and apparatus to transliterate text using a portable device |
| GB2415079A (en) * | 2004-06-09 | 2005-12-14 | Darren Raymond Taylor | Portable OCR reader which produces synthesised speech output |
| US9015029B2 (en) * | 2007-06-04 | 2015-04-21 | Sony Corporation | Camera dictionary based on object recognition |
| US9037450B2 (en) * | 2012-12-14 | 2015-05-19 | Microsoft Technology Licensing, Llc | Text overlay techniques in realtime translation |
| CN107944441B (en) * | 2017-12-15 | 2020-09-08 | 郑州科技学院 | Scanning type translation pen |
| CN209199360U (en) * | 2018-11-05 | 2019-08-02 | 深圳市微星视道科技有限公司 | A kind of any books talking pen |
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| CN113255653B (en) | 2024-03-29 |
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Effective date of registration: 20220622 Address after: 310052 room 509, building 3, No. 399, Wangshang Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Netease Youdao (Hangzhou) Intelligent Technology Co.,Ltd. Address before: 100094 1st floor, block a, building 7, West Zhongguancun Software Park, yard 10, northwest Wangdong Road, Haidian District, Beijing Patentee before: NETEASE YOUDAO INFORMATION TECHNOLOGY (BEIJING) Co.,Ltd. |