CN111830608A

CN111830608A - Proximity optical lens

Info

Publication number: CN111830608A
Application number: CN201910303128.8A
Authority: CN
Inventors: 张志才; 彭泳鑫; 张祖周; 罗磊; 邹才周
Original assignee: Shenzhen Mingzhi Ultra Precision Technology Co ltd
Current assignee: Shenzhen Mingzhi Ultra Precision Technology Co ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-10-27

Abstract

The invention relates to the technical field of optical lenses, and provides a proximity optical lens, which comprises a proximity optical lens main body, wherein the proximity optical lens main body comprises a cavity and an optical emergent column, the optical emergent column comprises an incident surface and an emergent surface, a proximity optical sensor is arranged in the cavity, and incident light rays emitted by the proximity optical sensor enter the optical emergent column through the incident surface and are emitted through the emergent surface. The proximity optical sensor is arranged in the cavity, so that the proximity optical sensor and the proximity optical lens main body form a whole, light generated by the proximity optical sensor is not influenced by the touch screen and other parts through direct light emitting of the proximity optical lens main body, and the recognition effect of the proximity optical sensor is improved.

Description

Proximity optical lens

Technical Field

The invention relates to the technical field of optical lenses, in particular to a proximity optical lens.

Background

The proximity optical sensor of the prior mobile phone is arranged beside a receiver at the top of the mobile phone and is mainly responsible for controlling the opening and closing of a screen when the mobile phone is called, so that the phenomenon that the mobile phone is hung up due to misoperation is avoided.

The mobile phone screen is composed of a proximity optical sensor, a rubber sleeve and a touch screen, the structure is complex, the proximity optical sensor is a device easily influenced by the structure, the function and the structure of the proximity optical sensor are closely related, and the performance of the proximity optical sensor can be influenced by the opening on the surface of the touch screen, the presence or absence of the rubber sleeve, the design of the rubber sleeve, the distance between the touch screen and the proximity optical sensor, and the like; and the positions in the mobile phone screen are less and less, and the arrangement of internal components is more and more compact, so that the placement and function realization of the proximity optical sensor are influenced.

The above disadvantages need to be improved.

Disclosure of Invention

To overcome the deficiencies of the prior art, the present invention provides a proximity optical lens.

The technical scheme of the invention is as follows:

the utility model provides a be close optical lens, includes and is close optical lens main part, be close optical lens main part and include cavity and light-emitting column, the light-emitting column is including going into the plain noodles and going out the plain noodles, be equipped with in the cavity and be close optical sensor, the incident light process that is close optical sensor sends go into the plain noodles and get into the light-emitting column, and the warp it jets out to go out the plain noodles.

Furthermore, the incident light surface is an inclined plane, and the inclination angle of the inclined plane is 30-35 degrees.

Furthermore, the light emergent surface is an arc surface, and the curvature radius of the arc surface is 3.8 mm-4.1 mm.

Further, after the incident light passes through the light-emitting column, the incident light deflects by 5 degrees to 10 degrees.

Further, the incident light is infrared light.

Furthermore, the material of the near light lens body is PC material.

Further, an outer surface of the proximity light lens body is coated with ink.

Further, the surface of the light-emitting surface is provided with a UV hard coating.

Further, the proximity light lens further includes a proximity light sensor.

The invention according to the scheme has the advantages that:

(1) according to the invention, a rubber sleeve and a touch screen opening are omitted, so that the assembly structure is simplified;

(2) the proximity optical sensor is arranged in the cavity, so that the proximity optical sensor and the proximity optical lens main body form a whole, light generated by the proximity optical sensor is directly emitted through the proximity optical lens main body and is not influenced by the touch screen and other parts, and the identification effect of the proximity optical sensor is improved;

(3) the invention has simple structure, smart design and low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a first cross-sectional view of the present invention;

FIG. 3 is a side view of the first embodiment of the present invention;

FIG. 4 is a schematic side view of the present invention;

fig. 5 is a schematic cross-sectional structure diagram of the present invention.

Wherein, in the figures, the respective reference numerals:

10-a proximity light lens body;

101-a chamber;

102-a light-emitting column; 1021-the light incident surface; 1022-a light-emitting surface;

20-proximity light sensor.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 1 to 2, a proximity optical lens includes a proximity optical lens body 10, the proximity optical lens body 10 includes a cavity 101 and an exit light pillar 102, the exit light pillar 102 includes a light incident surface 1021 and a light exit surface 1022, a proximity optical sensor 20 is disposed in the cavity 101, and an incident light emitted from the proximity optical sensor 20 enters the exit light pillar 102 through the light incident surface 1021 and exits through the light exit surface 1022.

The working principle of the proximity optical lens provided by the invention is as follows:

the proximity optical lens body 10 is provided with a cavity 101, the proximity optical sensor 20 is arranged in the cavity 101, incident light emitted by the proximity optical sensor 20 enters the light-emitting column 102 through the light-in surface 1021 and is refracted, the generated refracted light is emitted from the light-emitting surface 1022, the emitted light is scattered when encountering a set target object, a part of light is reflected back to the light-emitting column 102 and enters the proximity optical sensor 20, the proximity optical sensor 20 receives an optical signal and processes the optical signal, and then the startup and shutdown of the screen during communication are controlled, so that misoperation is avoided.

The proximity optical lens provided by the invention has the beneficial effects that:

(2) the proximity optical sensor 20 is disposed in the chamber 101, so that the proximity optical sensor 20 and the proximity optical lens body 10 are integrated, and light generated by the proximity optical sensor 20 is directly emitted through the proximity optical lens body 10 without being affected by the touch screen and other components, thereby improving the recognition effect of the proximity optical sensor 20;

(3) the invention has simple structure, smart design and low cost.

In one embodiment, the light incident surface 1021 is an inclined surface, and an inclination angle of the inclined surface is 30-35 °.

Preferably, the inclination angle of the inclined plane is 33 °.

In one embodiment, the light emitting surface 1022 is a curved surface, and the curvature radius of the curved surface is 3.8mm to 4.1 mm.

Preferably, the radius of curvature of the camber is 3.95 mm.

It should be understood that the errors for the dimensions 3.8mm, 3.95mm, 4.1mm are ± 0.05 mm.

In one embodiment, after the incident light passes through the light exit pillar 102, the incident light is deflected by 5 ° to 10 °.

In one embodiment, the incident light is infrared light, and the emission wavelength of the infrared light is 910nm to 970 nm.

In one embodiment, the material of the proximity optical lens body 10 is a PC material. The angle of the light emitted by the proximity light sensor 20 is adjusted by the refractive index of the PC material.

Preferably, the PC material has a light transmittance of greater than 90%.

Preferably, the PC material has a light transmittance of 92%.

In one embodiment, the outer surface proximate the optical lens body 10 is coated with ink. The outer surface of the proximity optical lens main body 10 is blackened by black shading ink to absorb redundant stray light, so that infrared light emitted by the proximity optical sensor 20 can reach a target position, and the function of the proximity optical sensor 20 is realized.

In one embodiment, the surface of the light emitting surface 1022 is provided with a UV hard coating. The hardness of the light-emitting surface 1022 of the light-emitting column 102 is better increased, and the light-emitting surface 1022 is prevented from being scratched.

Referring to fig. 3 to 5, in one embodiment, the length of the proximity optical lens body 10 is 6.2mm to 6.8 mm; the width of the proximity optical lens body 10 is 3.5mm to 4.1 mm; the height of the proximity optical lens body 10 is 4.5mm to 5.1 mm.

Preferably, the length of the proximity optical lens body 10 is 6.51 mm; the width of the proximity optical lens body 10 is 3.83 mm; the height of the proximity light lens body 10 is 4.78 mm.

It should be understood that the dimensions 6.2mm, 6.51mm, 6.8mm, 3.5mm, 3.83mm, 4.1mm, 4.5mm, 4.78mm, 5.1mm have a tolerance of ± 0.05 mm.

Preferably, the proximity light lens further includes a proximity light sensor 20.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A proximity light lens, comprising: including being close the optical lens main part, it includes cavity and light-emitting column to be close the optical lens main part, the light-emitting column is including going into the plain noodles and going out the plain noodles, be equipped with in the cavity and be close optical sensor, the incident light that is close optical sensor and sends passes through go into the plain noodles and get into go out the optical column, and the warp it jets out to go out the plain noodles.

2. The proximity optical lens of claim 1, wherein: the incident light surface is an inclined plane, and the inclination angle of the inclined plane is 30-35 degrees.

3. The proximity optical lens of claim 1, wherein: the light emergent surface is an arc surface, and the curvature radius of the arc surface is 3.8 mm-4.1 mm.

4. The proximity optical lens of claim 1, wherein: after the incident light passes through the light-emitting column, the incident light deflects by 5-10 degrees.

5. The proximity optical lens of claim 1, wherein: the incident light is infrared light.

6. The proximity optical lens of claim 1, wherein: the material of the optical lens body is PC material.

7. The proximity optical lens of claim 1, wherein: the outer surface of the proximity light lens body is coated with ink.

8. The proximity optical lens of claim 1, wherein: and the surface of the light-emitting surface is provided with a UV hard coating.

9. The proximity optical lens of claim 1, wherein: the proximity light lens further includes a proximity light sensor.