CN218273035U

CN218273035U - Infrared light filling subassembly and application apparatus thereof

Info

Publication number: CN218273035U
Application number: CN202222400997.2U
Authority: CN
Inventors: 杨素珍; 关荣乐
Original assignee: Entropy Based Technology Guangdong Co ltd
Current assignee: Entropy Based Technology Guangdong Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-10
Anticipated expiration: 2032-09-09

Abstract

The application discloses infrared light filling subassembly and application apparatus thereof, this infrared light filling subassembly includes: an infrared light source and a light-transmitting panel; the infrared light source is used for emitting infrared light; the light-transmitting panel is arranged in front of the infrared light source and used for shielding light rays with the wavelength lower than that of the infrared light rays, wherein the minimum wavelength of the infrared light rays exceeds a preset value, such as most visible light rays and ultraviolet rays. Wherein, the light-passing board can play the effect of light selection, screens out the light that the wavelength is less than the infrared ray wavelength to a certain extent to when reducing the influence of ambient light to other devices around the infrared light filling subassembly, not influence infrared light source's light filling effect, effectively solve current infrared image acquisition equipment and can't shelter from ambient light's problem when improving face image quality.

Description

Infrared light filling subassembly and application apparatus thereof

Technical Field

The application relates to the technical field of biological feature recognition devices, in particular to an infrared light supplementing assembly and an application device thereof.

Background

Biometric recognition technology is widely used in modern society as one of the technologies that revolutionize human society. Specifically, the biometric technology is to perform identity recognition using human physiological characteristics and behavioral characteristics, and mainly includes fingerprint recognition, face recognition, iris recognition, and the like. The face recognition has higher intuitiveness and convenience, and is widely applied in the field of current biological feature recognition.

In the face recognition technology, a camera is generally used for collecting infrared images for processing and recognition, and an infrared light supplement lamp is used for performing light compensation on the face images so as to reduce the influence of ambient light and improve the quality of the face images and the accuracy of face recognition.

And because various electronic components in the equipment all inconveniently expose outside, can penetrate outside the equipment for infrared light filling lamp in the equipment, often set up transparent panel or dark panel on equipment, the former is because complete light transmissivity easily causes the interference to other electronic components, although the latter can block partial ambient light but can reduce the light effect of infrared light filling lamp simultaneously, influences the quality of the face image who obtains.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide an infrared light supplement component and an application apparatus thereof, which are used to solve the problem that the existing infrared image acquisition device cannot shield ambient light while improving the quality of a face image.

In order to achieve the above technical object, a first aspect of the present application provides an infrared light supplement module, including: an infrared light source and a light-transmitting panel;

the infrared light source is used for emitting infrared light;

the light-transmitting panel is arranged in front of the infrared light source and used for shielding light rays with the wavelength lower than infrared rays and the lowest wavelength exceeding a preset value.

Further, the light-transmitting panel is covered with light-transmitting ink, and the light-transmitting panel shields light with the wavelength lower than that of the infrared light, wherein the minimum wavelength of the infrared light exceeds a preset value through the light-transmitting ink.

Further, the infrared light source is an infrared light emitting diode.

A second aspect of the present application provides an infrared light supplement component application apparatus, including any one of the above infrared light supplement components, a camera and a housing;

the infrared light supplementing assembly comprises an infrared light source and a camera which are both arranged in the shell;

the infrared light supplementing assembly comprises a light transmitting panel arranged on the shell.

Furthermore, the infrared light source includes a plurality of, and is the symmetric distribution around the camera.

Further, the housing comprises a front shell and a rear shell;

the light-transmitting panel is arranged on the front shell;

the camera and the infrared light source face the front shell.

Further, the light-transmitting panel is arranged on the front end surface of the front shell, and the front end surface of the front shell is parallel to the light-transmitting panel;

the direction of the camera is vertical to the front end face of the front shell;

the included angle between the front end face of the front shell and the horizontal plane is 55-75 degrees.

Further, the included angle between the front end face of the front shell and the horizontal plane is 70 degrees, and the direction of the camera and the infrared light source is inclined upwards.

Further, a fingerprint acquisition window is arranged on the front shell;

and a fingerprint identification processor electrically connected with the fingerprint acquisition window is arranged in the shell.

According to the above technical solution, the present application provides an infrared light supplement module and an application apparatus thereof, where the infrared light supplement module includes: an infrared light source and a light-transmitting panel; the infrared light source is used for emitting infrared light; the light-transmitting panel is arranged in front of the infrared light source and used for shielding light with the wavelength lower than that of the infrared light and the lowest wavelength exceeding a preset value. The light-transmitting plate can play a role in light selection, and light with a wavelength lower than the infrared light wavelength to a certain degree is screened out, so that the influence of ambient light on other devices around the infrared light supplementing assembly is reduced, the light supplementing effect of an infrared light source is not influenced, and the problem that the existing infrared image acquisition equipment cannot shield ambient light while the quality of human face images is improved is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an infrared light supplement assembly according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an infrared light supplement component application apparatus provided in an embodiment of the present application

In the figure: 1. an infrared light source; 2. a light transmissive panel; 3. a camera; 4. a housing; 41. a front housing; 42. a rear housing; 43. fingerprint collection window.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the embodiments of the present application, belong to the scope of protection claimed in the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, an infrared light supplement assembly provided in an embodiment of the present application includes: an infrared light source 1 and a light-transmitting panel 2; the infrared light source 1 is used for emitting infrared rays; the light-transmitting panel 2 is arranged in front of the infrared light source 1 and used for shielding light with the wavelength lower than that of the infrared light, and the minimum wavelength of the infrared light exceeds a preset value. The light-transmitting panel 2 serves as a selective light-transmitting member that screens out a portion of ambient light.

Specifically, the wavelength of the infrared ray is about 760nm at the lowest; the wavelength of visible light is about 380nm to 780nm; the ultraviolet wavelength is approximately 190nm to 400nm. The preset value in the scheme can be 10nm or 0nm, so that light with the wavelength of 750nm or below 760nm can be shielded through the light-transmitting panel 2 without influencing the penetration of most infrared light.

In this embodiment, the light-transmitting panel 2 is covered with the light-transmitting ink, and the effect of shielding light is achieved through the light-transmitting ink, so that light with a shielding wavelength lower than a preset value compared with the lowest wavelength of infrared light is achieved.

It should be noted that the infrared light emitted by the infrared light source 1 used in the present embodiment may be near-infrared light. The light transmittance of the light-transmitting panel 2 covered with the light-transmitting ink can reach about 95% in the near-infrared light having a wavelength of about 850 nm.

The infrared light source 1 in this embodiment may be an infrared light emitting diode.

Referring to fig. 2, an application apparatus of an infrared light supplement device is further provided in an embodiment of the present application, including any one of the above-mentioned infrared light supplement devices, a camera 3, and a housing 4. The infrared light supplementing assembly comprises an infrared light source 1 and a camera 3 which are both arranged in the shell 4; the light-transmitting panel 2 that the infrared light filling component includes is arranged on the shell 4.

Wherein, camera 3 and infrared light source 1 can all be towards printing opacity panel 2 to, camera 3 can be infrared camera, handles and discerns through gathering infrared image, thereby does not receive the influence of 2 shading effects of printing opacity panels.

In one embodiment, the infrared light source 1 may include a plurality of light sources, and the light sources are symmetrically distributed around the camera 3, so as to ensure a light supplement effect of the infrared light source 1.

In a more specific embodiment, the housing 4 includes a front case 41 and a rear case 42; the light transmission panel 2 is arranged on the front shell 41; the cameras 3 face the infrared light source 1 in the same direction and face the front case 41.

The front shell 41 and the rear shell 42 may be detachably connected to facilitate installation of internal devices. Meanwhile, a display screen can be arranged on the front shell 41, and images shot by the camera 3 can be displayed.

In a further improved embodiment, the light-transmissive panel 2 is mounted on the front end surface of the front case 41, and the light-transmissive panel 2 is parallel to the front end surface of the front case 41. In order to ensure the image capturing effect of the camera 3, the camera 3 is oriented perpendicular to the front end face of the front shell 41; the angle between the front end face of the front shell 41 and the horizontal plane is 55 ° to 75 °.

Particularly, the preceding terminal surface slope of preceding shell 41 sets up in this scheme can play the effect of being convenient for gather, thereby the too big influence imaging effect of the facial every single move angle of the collection object when avoiding gathering.

In this embodiment, an included angle between the front end surface of the front housing 41 and the horizontal plane is 70 °, and the orientation of the camera 3 and the infrared light source 1 is inclined upward. The inventor finds that when the inclination angle between the light-transmitting panel 2 and the horizontal plane is 70 degrees, the infrared light source 1 can make up light to irradiate more light on the face, and the imaging effect is improved while the image capturing stability can be ensured.

As a further improvement, a fingerprint acquisition window 43 is arranged on the front shell 41; a fingerprint identification processor electrically connected with the fingerprint acquisition window 43 is arranged in the shell 4.

Through the mode of fingerprint collection and image acquisition inter combination, can increase the suitability of device and improve the accuracy to biological characteristic discernment simultaneously.

Although the present invention has been described in detail with reference to the examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.

Claims

1. An infrared light filling subassembly which characterized in that includes: an infrared light source (1) and a light-transmitting panel (2);

the infrared light source (1) is used for emitting infrared rays;

the light-transmitting panel (2) is arranged in front of the infrared light source (1) and is used for shielding light rays with the wavelength lower than that of the infrared light rays, and the lowest wavelength exceeds a preset value.

2. The infrared supplementary lighting assembly of claim 1, wherein the light-transmitting panel (2) is covered with a light-transmitting ink, and the light-transmitting panel (2) shields light with a wavelength lower than that of infrared light and a lowest wavelength exceeding a preset value through the light-transmitting ink.

3. An infrared fill light assembly as defined in claim 1, wherein the infrared light source (1) is an infrared light emitting diode.

4. An infrared supplementary lighting assembly application device, characterized by comprising the infrared supplementary lighting assembly of any one of claims 1-3, a camera (3) and a housing (4);

the infrared light supplementing assembly comprises an infrared light source (1) and a camera (3) which are both arranged in the shell (4);

the infrared light supplementing assembly comprises a light transmitting panel (2) arranged on the shell (4).

5. The device as claimed in claim 4, wherein the plurality of infrared light sources (1) are symmetrically distributed around the camera (3).

6. The apparatus as claimed in claim 4, wherein the housing (4) comprises a front shell (41) and a rear shell (42);

the light-transmitting panel (2) is arranged on the front shell (41);

the camera (3) and the infrared light source (1) face the front shell (41).

7. The apparatus as claimed in claim 6, wherein the light-transmissive panel (2) is disposed on a front surface of the front housing (41), and the front surface of the front housing (41) is parallel to the light-transmissive panel (2);

the direction of the camera (3) is vertical to the front end face of the front shell (41);

the included angle between the front end face of the front shell (41) and the horizontal plane is 55-75 degrees.

8. The device for applying the infrared supplementary lighting assembly according to claim 7, wherein an included angle between the front end surface of the front housing (41) and a horizontal plane is 70 °, and the direction of the camera (3) and the infrared light source (1) is inclined upwards.

9. The device for applying an infrared supplementary lighting assembly according to claim 6, wherein a fingerprint acquisition window (43) is disposed on the front housing (41);

a fingerprint identification processor electrically connected with the fingerprint acquisition window (43) is arranged in the shell (4).