Iris acquisition and recognition device and iris acquisition and recognition terminal equipment
By designing a retractable iris acquisition and identification device, the existing devices are solved, and the problem of large size and poor portability is achieved, which is higher portability and user convenience, while ensuring image quality.
Patent Information
- Application Number
- CN202421282734.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing iris acquisition and identification devices need to be equipped with a lens barrel of longer length, resulting in larger size, poor portability, and inconvenient user use.
An iris acquisition and identification device including a retractable device main body and a camera assembly is designed. Using the structure of a retractable device sleeve and an inner core, it is embedded into the sleeve in a retractable state, and partially extends the sleeve in an extended state. , realizes the scalability of the device.
Through the scalable design, the volume of the iris acquisition and recognition device is reduced, portability is improved, and it is more convenient for users to use, while ensuring the quality of the iris image taken.
Smart Images
Figure CN222462087U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present disclosure relate to the technical field of biometric feature collection and identification, and in particular to an iris collection and identification apparatus and an iris collection and identification terminal device. Background Art
[0002] With the advancement and development of science and technology, the original identity authentication methods such as swiping cards, account numbers and passwords can no longer meet the needs of the current society. Due to the advantages of high accuracy and difficulty in duplication, biometric recognition has become the mainstream method of identity authentication. For example, iris recognition, which is widely used, is mostly equipped with a lens barrel in order to reduce the interference of external conditions such as light spots on the iris collection process and ensure that the distance between the eye and the lens is within an appropriate range.
[0003] However, when using the above iris recognition device for identity recognition, the following technical problems often occur:
[0004] Imaging under near-infrared light places high demands on the image quality and resolution of the imaging module. It needs to be able to capture high-quality iris images and has certain restrictions on the distance between the eye and the lens. It usually needs to be equipped with a longer lens barrel. As a result, the iris acquisition and recognition device is larger in size, resulting in poor portability and inconvenience for users.
[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure concept and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Utility Model Content
[0006] The content of this disclosure is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0007] Some embodiments of the present disclosure propose an iris acquisition and recognition apparatus and an iris acquisition and recognition terminal device to solve the technical problems mentioned in the above background technology section.
[0008] In a first aspect, some embodiments of the present disclosure provide an iris acquisition and recognition device, which includes: a retractable device body and a camera assembly, wherein the retractable device body includes a retractable device sleeve and a retractable device core, and the retractable device core is retractably embedded in the interior of the retractable device sleeve; the camera assembly is arranged in the interior of the retractable device core, and the camera assembly includes a main board, a lens, and an infrared lamp assembly, and the retractable device core includes an external interface and a fill light cover assembly; in a retracted state, the camera assembly and the retractable device core are embedded in the interior of the retractable device sleeve; in an extended state, the camera assembly and part of the retractable device core extend out of the retractable device sleeve.
[0009] Optionally, the telescopic device inner core is slidably connected to the telescopic device sleeve via a slide rail.
[0010] Optionally, at least one sliding groove is provided on one side of the telescopic device sleeve, and at least one sliding platform corresponding to the sliding groove is provided on one side of the inner core of the telescopic device; in the retracted state, each sliding platform is embedded in each sliding groove.
[0011] Optionally, an opening is provided at the bottom of the telescopic device sleeve, and an anti-slip member is provided at a position of the telescopic device inner core corresponding to the opening.
[0012] Optionally, elastic columns are respectively arranged on both sides of the telescopic device inner core, and limiting pieces corresponding to the elastic columns are respectively arranged at two locations of the telescopic device sleeve; when the telescopic device inner core is embedded in the interior of the telescopic device sleeve, the elastic columns are embedded in the corresponding limiting pieces.
[0013] Optionally, the infrared light assembly includes two infrared fill lights, and the two infrared fill lights are respectively arranged on both sides of the lens.
[0014] Optionally, the camera assembly further includes two white light fill lights, which are also respectively arranged on both sides of the lens, and one of the two white light fill lights is adjacent to one of the two infrared fill lights.
[0015] Optionally, the fill light cover assembly includes two fill light cover plates, the two fill light cover plates are respectively located on both sides of the lens, and the two fill light cover plates are used to cover the white light fill light and the infrared fill light.
[0016] Optionally, the camera assembly is covered with a coated lens glass, and the coated lens glass is arranged on the inner core of the retractable device.
[0017] In a second aspect, some embodiments of the present disclosure provide an iris acquisition and recognition terminal device, which includes: a terminal and an iris acquisition and recognition device as described in the first aspect; the terminal is connected to the iris acquisition and recognition device via a data cable.
[0018] The above-mentioned embodiments of the present disclosure have the following beneficial effects: through the iris acquisition and recognition device of some embodiments of the present disclosure adopting a retractable structure, while ensuring the quality of the iris image captured, the volume of the iris acquisition and recognition device is reduced, thereby improving the portability of the iris acquisition and recognition device and making it more convenient for users to use. Specifically, the reason for the inconvenience of user use is that imaging under near-infrared light has high requirements on the image quality and resolution of the imaging module, and it is necessary to be able to capture high-quality iris images. There are certain restrictions on the distance between the eyes and the lens, and it is usually necessary to be equipped with a longer lens barrel. Therefore, the volume of the iris acquisition and recognition device is large, resulting in poor portability of the iris acquisition and recognition device, which leads to inconvenience for users. Based on this, some embodiments of the iris acquisition and recognition device of the present disclosure include a retractable device body and a camera assembly, wherein the retractable device body includes a retractable device sleeve and a retractable device core, and the retractable device core can be retractably embedded in the interior of the retractable device sleeve; the camera assembly is arranged in the interior of the retractable device core, and the camera assembly includes a main board, a lens and an infrared lamp assembly, and the retractable device core includes an external interface and a fill light cover assembly; in a retracted state, the camera assembly and the retractable device core are embedded in the interior of the retractable device sleeve; in an extended state, the camera assembly and parts of the retractable device core extend out of the retractable device sleeve. Because the iris acquisition and recognition device includes a retractable device body, the retractable device core can be retractably embedded in the interior of the retractable device sleeve, so that the retractable device core can be pulled out when in use, so that the user has a certain use distance when acquiring iris images outside the retractable device sleeve, and the retractable device core can be embedded in the retractable device sleeve when not in use, reducing the volume of the iris acquisition and recognition device, thereby ensuring the quality of the captured iris image while improving the portability of the iris acquisition and recognition device. Therefore, the iris acquisition and recognition device adopts a retractable structure, while ensuring the quality of the captured iris image, reducing the volume of the iris acquisition and recognition device, thereby improving the portability of the iris acquisition and recognition device and making it more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.
[0020] Figure 1 is a schematic diagram of the structure of some embodiments of the iris acquisition and recognition device according to the present disclosure;
[0021] Figure 2 is a front view of some embodiments of the iris acquisition and recognition device according to the present disclosure;
[0022] Figure 3 It is a schematic diagram of the structure of some embodiments of the iris acquisition and recognition terminal device according to the present disclosure. DETAILED DESCRIPTION
[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0024] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0025] It should also be noted that, for ease of description, only the parts related to the relevant disclosure are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0026] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0027] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0028] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.
[0029] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0030] Figure 1 It is a schematic diagram of the structure of some embodiments of the iris acquisition and recognition device according to the present disclosure. Figure 1 The invention comprises a retractable device sleeve 1, a retractable device inner core 2 and an external connection interface 3.
[0031] Figure 2 1 is a front view of some embodiments of the iris acquisition and recognition device according to the present disclosure. Figure 2 The utility model comprises a fill light cover piece 4.
[0032] In some embodiments, the iris acquisition and recognition device may include a retractable device body and a camera assembly. The retractable device body may include a retractable device sleeve 1 and a retractable device core 2. The retractable device core 2 may be retractably embedded in the interior of the retractable device sleeve 1. It can be understood that the retractable device core 2 may slide in the retractable device sleeve 1. Here, the specific connection method of the retractable device core 2 in the retractable device sleeve 1 is not limited. For example, the connection method of the retractable device core 2 and the retractable device sleeve 1 may be a split magnetic type.
[0033] In some embodiments, the camera assembly may be disposed inside the retractable device core 2. The camera assembly may include a mainboard, a lens, and an infrared light assembly. The retractable device core 2 may include an external interface 3 and a fill light cover assembly 4. The mainboard may be a PCB (Printed Circuit Board) mainboard. The lens may be a fixed focus lens. The external interface 3 may be a Type-C interface.
[0034] In some embodiments, in the retracted state, the camera assembly and the retractable device inner core 2 are embedded in the retractable device sleeve 1 .
[0035] In some embodiments, in the extended state, the camera assembly and part of the retractable device inner core 2 can extend out of the retractable device sleeve 1 .
[0036] In practice, the function of the lens barrel is to facilitate iris collection under relatively closed conditions. The lens barrel can effectively avoid the interference of external conditions such as light spots on the collection process, improve the clarity and quality of the iris image, and the design of the lens barrel can ensure that the distance between the eye and the lens is in a suitable range to obtain high-quality iris images. Cameras with different focal lengths correspond to different collection distances. In order to bring a better user experience, the above-mentioned iris collection and recognition device can use lenses with different focal lengths or zoom lenses, suitable for different collection distances, and retractable device sleeves 1 of different sizes are designed accordingly according to different collection distances. The optimal distance between the above-mentioned lens and the eyes of the person being collected is determined by the developer's debugging and measurement, and this distance is limited by the retractable device sleeve 1. In order to facilitate carrying and reduce the size of the device, the retractable device sleeve 1 and the above-mentioned retractable device inner core 2 are set to be retractably connected.
[0037] Optionally, the telescopic device inner core 2 and the telescopic device sleeve 1 may be slidably connected via a slide rail.
[0038] Optionally, at least one sliding groove may be provided on one side of the telescopic device sleeve 1. At least one sliding platform corresponding to the sliding groove may be provided on one side of the telescopic device inner core 2. In the retracted state, each sliding platform may be embedded in each sliding groove.
[0039] Optionally, an opening may be provided at the bottom of the telescopic device sleeve 1. An anti-slip member may be provided at a position of the telescopic device inner core 2 corresponding to the opening. Thus, the anti-slip member can make it easier for the user to pull the telescopic device inner core out of the telescopic device sleeve.
[0040] Optionally, elastic columns may be respectively arranged on both sides of the telescopic device inner core 2. The elastic columns may be spring balls. Limiting pieces corresponding to the elastic columns may be respectively arranged at two locations of the telescopic device sleeve 1. When the telescopic device inner core 2 may be embedded in the interior of the telescopic device sleeve 1, the provided elastic columns may be embedded in the corresponding limiting pieces.
[0041] Optionally, the infrared light assembly may include two infrared fill lights. The two infrared fill lights may be respectively arranged on both sides of the lens. Thus, the infrared fill lights may be used to assist iris imaging. In order to ensure uniform infrared light and improve the quality of the collected iris image, the number of infrared fill lights is set to two, and preferably the infrared fill lights are configured to be symmetrical on both sides of the lens.
[0042] Optionally, the camera assembly may further include two white light fill lights. The two white light fill lights may also be respectively arranged on both sides of the lens. And the white light fill light of the two white light fill lights may be respectively adjacent to the infrared fill light of the two infrared fill lights. Thus, when the iris is collected, the white light fill light is turned on to stimulate the pupil of the human eye to contract, thereby obtaining a higher quality iris image.
[0043] Optionally, the fill light cover assembly 4 may include two fill light cover assemblies 4. The two fill light cover assemblies 4 may be located on both sides of the lens, respectively. The two fill light cover assemblies 4 may be used to cover the white light fill light and the infrared fill light.
[0044] Optionally, the camera assembly may be covered with a coated lens glass. The coated lens glass may be disposed on the retractable device inner core 2. Thus, the coated lens glass is used to meet the need for the light of a specific spectral band of near-infrared imaging to pass through, and the person being collected can also observe his or her own eyes through the coated lens glass, which is convenient for fine-tuning the angle of the eyes during collection.
[0045] Optionally, the camera assembly may further include an image sensor, which may convert external light signals into electrical signals, and then form image data through circuit processing.
[0046] In the process of adopting technical solutions to solve the above technical problems, the following technical problem 2 is often accompanied: cameras with different focal lengths have different optimal distances between the lens and the eyes of the person being collected. When a retractable device sleeve of the same size is used, the effect of the camera collecting the iris is poor, resulting in low iris recognition accuracy. In response to the above technical problem 2, the conventional solution is generally to design retractable device sleeves of different sizes for cameras with different focal lengths. However, the above conventional solution still has the following problems: the applicability of the retractable device sleeve is low, and designing retractable device sleeves of multiple sizes is likely to cause a waste of resources.
[0047] Considering the problems of the above conventional solutions, facing the above technical problem 2: cameras with different focal lengths have different optimal distances between the lens and the eyes of the person being collected. When a retractable device sleeve of uniform size is used, the effect of the camera collecting irises is poor, resulting in low iris recognition accuracy. Combined with the current state of technology, the following solutions can be decided:
[0048] Optionally, the telescopic device sleeve may include an upper telescopic device sleeve and a lower telescopic device sleeve. The upper telescopic device sleeve is telescopically connected to the lower telescopic device sleeve through a connecting rod structure. The connecting rod structure includes various connecting rods. The inner sides of the upper telescopic device sleeve may be provided with sliding grooves respectively. The outer sides of the lower telescopic device sleeve may be provided with connecting rods respectively. When the upper telescopic device sleeve moves outside the lower telescopic device sleeve, the connecting rod may move in the sliding groove of the corresponding connecting rod. The inner side of the upper telescopic device sleeve may also be provided with various spring balls. The outer side of the upper telescopic device sleeve may be provided with limiting holes corresponding to the spring balls. Specifically, the various spring balls may be evenly provided on the inner side of the upper telescopic device sleeve. The various limiting holes may be evenly provided on the outer side of the upper telescopic device sleeve. The distance between two adjacent spring balls is equal to the distance between two adjacent limiting holes. Here, there is no specific limitation on the specific number of spring balls and limiting holes, the specific distance between two adjacent spring balls, and the specific distance between two adjacent limiting holes. Therefore, by adjusting the telescopic distance of the upper telescopic device sleeve and the lower telescopic device sleeve, the length of the telescopic device sleeve can be adjusted, thereby adjusting the distance between the lens and the eyes of the person being captured to adapt to cameras with different focal lengths, so that the captured iris image is clearer and the accuracy of iris recognition is improved.
[0049] The relevant content of the above-mentioned retractable device sleeve is an inventive point of the embodiment of the present disclosure, which solves the second technical problem "Cameras with different focal lengths have different optimal distances between the lens and the eyes of the person being collected. When a retractable device sleeve of uniform size is used, the effect of the camera collecting irises is poor, resulting in low iris recognition accuracy". The reasons for the low iris recognition accuracy are as follows: Cameras with different focal lengths have different optimal distances between the lens and the eyes of the person being collected. When a retractable device sleeve of uniform size is used, the effect of the camera collecting irises is poor. If the above factors are solved, the accuracy of iris recognition can be improved. In order to achieve this effect, the retractable device sleeve included in the iris collection and recognition device of the present disclosure includes an upper retractable device sleeve and a lower retractable device sleeve. The upper retractable device sleeve is retractably connected to the lower retractable device sleeve through a connecting rod structure. The connecting rod structure includes various connecting rods. Slide grooves are respectively provided on both sides of the inner edge of the upper retractable device sleeve. Connecting rods are respectively provided on both sides of the outer edge of the lower retractable device sleeve. When the upper telescopic device sleeve moves outside the lower telescopic device sleeve, the connecting rod moves in the corresponding sliding groove of the connecting rod. The inner side of the upper telescopic device sleeve is also provided with spring balls. The outer side of the upper telescopic device sleeve is provided with limiting holes corresponding to the spring balls. Therefore, by adjusting the telescopic distance of the upper telescopic device sleeve and the lower telescopic device sleeve, the length of the telescopic device sleeve can be adjusted, thereby adjusting the distance between the lens and the eyes of the person being collected to adapt to cameras with different focal lengths, so that the collected iris image is clearer and the accuracy of iris recognition is improved.
[0050] The above-mentioned embodiments of the present disclosure have the following beneficial effects: through the iris acquisition and recognition device of some embodiments of the present disclosure adopting a retractable structure, while ensuring the quality of the iris image captured, the volume of the iris acquisition and recognition device is reduced, thereby improving the portability of the iris acquisition and recognition device and making it more convenient for users to use. Specifically, the reason for the inconvenience of user use is that imaging under near-infrared light has high requirements on the image quality and resolution of the imaging module, and it is necessary to be able to capture high-quality iris images. There are certain restrictions on the distance between the eyes and the lens, and it is usually necessary to be equipped with a longer lens barrel. Therefore, the volume of the iris acquisition and recognition device is large, resulting in poor portability of the iris acquisition and recognition device, which leads to inconvenience for users. Based on this, some embodiments of the iris acquisition and recognition device of the present disclosure include a retractable device body and a camera assembly, wherein the retractable device body includes a retractable device sleeve and a retractable device core, and the retractable device core can be retractably embedded in the interior of the retractable device sleeve; the camera assembly is arranged in the interior of the retractable device core, and the camera assembly includes a main board, a lens and an infrared lamp assembly, and the retractable device core includes an external interface and a fill light cover assembly; in a retracted state, the camera assembly and the retractable device core are embedded in the interior of the retractable device sleeve; in an extended state, the camera assembly and parts of the retractable device core extend out of the retractable device sleeve. Because the iris acquisition and recognition device includes a retractable device body, the retractable device inner core can be retractably embedded in the interior of the retractable device sleeve, so that the retractable device inner core can be pulled out when in use, so that the user has a certain use distance interval when collecting iris images outside the retractable device sleeve to perform iris acquisition; and when not in use, the retractable device inner core can be embedded in the retractable device sleeve to reduce the volume of the iris acquisition and recognition device, thereby ensuring the quality of the captured iris image while improving the portability of the iris acquisition and recognition device. Therefore, the iris acquisition and recognition device adopts a retractable structure, which reduces the volume of the iris acquisition and recognition device while ensuring the quality of the captured iris image, thereby improving the portability of the iris acquisition and recognition device and making it more convenient for users to use.
[0051] Figure 3 It is a schematic diagram of the structure of some embodiments of the iris acquisition and recognition terminal device according to the present disclosure. Figure 3 The device comprises a terminal 6 and an iris acquisition and recognition device 7. The iris acquisition and recognition device 7 comprises a controller 71, an external interface 72, a fill light control circuit 73, an infrared image module 74 and a power conversion module 75.
[0052] In some embodiments, the iris acquisition and recognition terminal device may include a terminal 6 and an iris acquisition and recognition device 7. The terminal 6 may be connected to the iris acquisition and recognition device 7 via a data cable. Specifically, the terminal 6 may be connected to an external interface in the iris acquisition and recognition device 7 via a data cable.
[0053] Optionally, the iris acquisition and recognition device 7 may further include a controller 71, an external interface 72, a fill light control circuit 73, an infrared image module 74, and a power conversion module 75. Thus, the iris image can be acquired through the infrared image module, and the fill light control circuit can be used to control the infrared light state and the white light state, and the infrared light state may include on, off, and at least two brightness values. The white light may include two states, on and off. The external interface may be used to connect to a terminal, responsible for communicating with the terminal's data and obtaining power from the terminal. Thus, the iris acquisition and recognition device may be provided with power and a network through the terminal.
[0054] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned disclosure concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.
Claims
1. An iris collection and recognition device, characterized in that: The iris acquisition and recognition device comprises a retractable device body and a camera assembly, wherein: The telescopic device body comprises a telescopic device sleeve and a telescopic device inner core, and the telescopic device inner core is telescopically embedded in the interior of the telescopic device sleeve; The camera assembly is arranged inside the inner core of the retractable device, the camera assembly includes a mainboard, a lens and an infrared light assembly, and the inner core of the retractable device includes an external interface and a fill light cover assembly; In the retracted state, the camera assembly and the inner core of the retractable device are embedded in the interior of the retractable device sleeve; In the extended state, the camera assembly and part of the inner core of the telescopic device extend out of the telescopic device sleeve.
2. The iris acquisition and recognition device according to claim 1, characterized in that: The telescopic device inner core is slidably connected to the telescopic device sleeve via a slide rail.
3. The iris acquisition and recognition device according to claim 2, characterized in that: One side of the telescopic device sleeve is provided with at least one sliding groove, and one side of the telescopic device inner core is provided with at least one sliding platform corresponding to the sliding groove; In the retracted state, each slide table is embedded in each slide groove.
4. The iris acquisition and recognition device according to claim 1, characterized in that: The bottom of the telescopic device sleeve is provided with an opening, and the position of the telescopic device inner core corresponding to the opening is provided with an anti-slip part.
5. The iris acquisition and recognition device according to claim 1, characterized in that: Elastic columns are respectively arranged on both sides of the inner core of the telescopic device, and limiting pieces corresponding to the elastic columns are respectively arranged at two locations of the telescopic device sleeve; When the inner core of the telescopic device is embedded in the interior of the telescopic device sleeve, the arranged elastic column is embedded in the corresponding limiting member.
6. The iris acquisition and recognition device according to claim 1, characterized in that: The infrared light assembly includes two infrared fill-in lights, and the two infrared fill-in lights are respectively arranged on both sides of the lens.
7. The iris acquisition and recognition device according to claim 6, characterized in that: The camera assembly also includes two white light fill lights, which are also respectively arranged on both sides of the lens, and the white light fill lights in the two white light fill lights are respectively adjacent to the infrared fill lights in the two infrared fill lights.
8. The iris acquisition and recognition device according to claim 7, characterized in that: The fill light cover assembly comprises two fill light cover plates, the two fill light cover plates are respectively located on both sides of the lens, and the two fill light cover plates are used to cover the white light fill light and the infrared fill light.
9. The iris acquisition and recognition device according to claim 1, characterized in that: The camera assembly is covered with a coated lens glass, and the coated lens glass is arranged on the inner core of the retractable device.
10. An iris collection and recognition terminal device, characterized in that: The iris acquisition and recognition terminal device comprises a terminal and an iris acquisition and recognition device as claimed in any one of claims 1 to 9; The terminal is connected to the iris acquisition and recognition device via a data line.