CN220709386U - Human body induction lens assembly for increasing detection angle - Google Patents
Human body induction lens assembly for increasing detection angle Download PDFInfo
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- CN220709386U CN220709386U CN202322495563.XU CN202322495563U CN220709386U CN 220709386 U CN220709386 U CN 220709386U CN 202322495563 U CN202322495563 U CN 202322495563U CN 220709386 U CN220709386 U CN 220709386U
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- detection angle
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 230000006698 induction Effects 0.000 title abstract description 5
- 239000000178 monomer Substances 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 210000003644 lens cell Anatomy 0.000 claims description 5
- 238000005192 partition Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a human body induction lens component for increasing a detection angle, which relates to the technical field of optical engineering and comprises the following components: a base; the lens body is connected with the base and comprises a plurality of sub-lens subareas; the sub-lens partition specifically comprises a central area, a first annular area surrounding the periphery of the central area, a second annular area surrounding the periphery of the first annular area and a third annular area surrounding the periphery of the second annular area; the central area is provided with a Fresnel lens monomer, and the optical axis of the Fresnel lens in the central area coincides with the center of the central area; the first annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the second annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the third annular region is provided with 12 Fresnel lens monomers which are closely arranged. According to the utility model, the Fresnel lines are reasonably planned, so that the receiving range of infrared signals is enlarged, and the suspended ceiling or wall hanging state can obtain a larger detection range.
Description
Technical Field
The utility model relates to the technical field of optical engineering, in particular to a human body induction lens component for increasing a detection angle.
Background
The intelligent human body sensor capable of detecting the human body is widely applied to intelligent home solutions, and the purpose of detecting the human body can be achieved no matter whether the human body moves or is static. The intelligent human body sensor can realize the integration of infrared anti-theft and infrared control, and expands the application range of the human body sensor. The general human body sensor consists of a lens, a photosensitive element, a photosensitive circuit and a mechanical part. Wherein the lens is an important device responsible for collecting signals of a specific wave band to sense a human body. The problem that the detection angle is insufficient and the precision is not high exists in the lens that is applied to human intelligent inductor at present.
Therefore, how to optimize the lens module of the human body sensing device to achieve wide-angle coverage in the horizontal and vertical directions is a technical problem to be solved.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems in the prior art or related technology, and discloses a human body sensing lens assembly for increasing a detection angle, which expands the monitoring range of a human body sensing device.
A first aspect of the present utility model discloses a human sensing lens assembly for increasing a detection angle, comprising: a base; the lens body is connected with the base and comprises a plurality of sub-lens subareas; the sub-lens partition specifically comprises a central area, a first annular area surrounding the periphery of the central area, a second annular area surrounding the periphery of the first annular area and a third annular area surrounding the periphery of the second annular area; the central area is provided with a Fresnel lens monomer, and the optical axis of the Fresnel lens in the central area coincides with the center of the central area; the first annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the second annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the third annular region is provided with 12 Fresnel lens monomers which are closely arranged.
According to the human body induction lens assembly for increasing the detection angle disclosed by the utility model, preferably, the Fresnel lens units of the first annular region are in one-to-one correspondence with the Fresnel lens units of the adjacent second annular region and are radially and outwards diverged.
According to the human body sensing lens assembly for increasing the detection angle disclosed in the present utility model, preferably, the optical axes of the respective lenses of the third annular region are located on the same circumference.
According to the human body sensing lens assembly for increasing the detection angle disclosed in the present utility model, preferably, the optical axes of the respective lenses of the third annular region are not on the same circumference.
According to the human body sensing lens assembly for increasing the detection angle disclosed by the utility model, preferably, a plurality of Fresnel lens monomers are integrally formed to form the lens body.
According to the human body sensing lens assembly for increasing the detection angle disclosed by the utility model, preferably, the focal length of the Fresnel lens unit is 9.8mm.
According to the human body sensing lens assembly for increasing the detection angle disclosed by the utility model, the base is preferably fixed on the horizontal plane 3 m away from the ground, so that the expected detection performance can be achieved, and the detection radius is 3 m to 4 m.
According to the human body sensing lens assembly for increasing the detection angle disclosed by the utility model, preferably, the base is fixed on the vertical plane at a distance of 1.5 meters from the ground, so that the expected detection performance can be achieved, the detection angle is 120 degrees, the detection distance near the central part is 8 meters to 9 meters in the forward direction, and the detection distance near the edge part is 5 meters to 6 meters in the forward direction.
The beneficial effects of the utility model at least comprise: the detection angle is increased through the multi-layer nested Fresnel lens annular region, the area in each region is gradually increased from inside to outside, the center of the Fresnel lines gradually approaches to the central region, and the sensing element can be accurately triggered. The detection angle is enlarged as a whole, and the detection range of the human body sensing device is increased.
Drawings
Fig. 1 illustrates a front view of a body sensing lens assembly according to an embodiment of the present utility model.
Fig. 2 shows a cross-sectional view of a fresnel lens cell according to an embodiment of the present utility model.
Fig. 3 shows a schematic view of fresnel texture according to an embodiment of the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the present utility model is not limited to the specific embodiments disclosed below.
As shown in fig. 1, 2 and 3, according to one embodiment of the present utility model, a human body sensing lens assembly for increasing a detection angle is disclosed, comprising: a base 1; a lens body 2 connected to the base, the lens body including a plurality of sub-lens sections; the sub-lens partition specifically comprises a central area 3, a first annular area 4 surrounding the periphery of the central area, a second annular area 5 surrounding the periphery of the first annular area and a third annular area 6 surrounding the periphery of the second annular area; the central area is provided with a Fresnel lens monomer, and the optical axis of the Fresnel lens in the central area coincides with the center of the central area; the first annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the second annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference; the third annular region is provided with 12 Fresnel lens monomers which are closely arranged.
According to the above embodiment, preferably, the fresnel lens monomers of the first annular region are in one-to-one correspondence with the fresnel lens monomers of the adjacent second annular region, and radiate outwards.
According to the above embodiment, it is preferable that the optical axes of the respective lenses of the third annular region are located on the same circumference.
According to the above embodiment, it is preferable that the optical axes of the respective lenses of the third annular region are not on the same circumference.
According to the above embodiment, preferably, the plurality of fresnel lens monomers are integrally formed to constitute the lens body.
According to the above embodiment, it is preferable that the focal length of the fresnel lens monomer is 9.8mm.
According to the above embodiment, the base is preferably fixed on a horizontal plane 3 m from the ground, enabling to achieve the desired detection performance with a detection radius of 3 m to 4 m.
According to the above embodiment, it is preferable that the base is fixed on the vertical plane at a distance of 1.5 m from the ground, so that the desired detection performance can be achieved, the detection angle is 120 °, the detection distance near the center portion is 8m to 9 m, and the detection distance near the edge portion is 5 m to 6 m.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A body sensing lens assembly for increasing a detection angle, comprising:
a base;
a lens body coupled to the base, the lens body including a plurality of sub-lens sections;
the sub-lens subarea specifically comprises a central area, a first annular area surrounding the periphery of the central area, a second annular area surrounding the periphery of the first annular area and a third annular area surrounding the periphery of the second annular area;
the center area is provided with a Fresnel lens monomer, and the optical axis of the Fresnel lens in the center area coincides with the circle center of the center area;
the first annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference;
the second annular region is provided with 8 Fresnel lens monomers which are closely arranged, and the optical axes of the lenses are positioned on the same circumference;
the third annular region is provided with 12 Fresnel lens monomers which are closely arranged.
2. The body sensing lens assembly for increasing the detection angle of claim 1, wherein the fresnel lens cells of the first annular region are in one-to-one correspondence with the fresnel lens cells of the adjacent second annular region, radiating outwardly.
3. The body sensing lens assembly for increasing the detection angle of claim 1, wherein the optical axes of the lenses of the third annular region are located on the same circumference.
4. The body sensing lens assembly for increasing the detection angle of claim 1, wherein the optical axes of the individual lenses of the third annular region are not on the same circumference.
5. The body sensing lens assembly for increasing the detection angle of claim 1, wherein a plurality of said fresnel lens cells are integrally formed to form said lens body.
6. The body sensing lens assembly for increasing the detection angle of claim 1, wherein the focal length of the fresnel lens cell is 9.8mm.
7. The body sensing lens assembly for increasing the probing angle as recited in claim 1 wherein said base is fixed at a level of 3 meters from the ground to achieve the desired probing performance with a probing radius of 3 meters to 4 meters.
8. The body sensing lens assembly for increasing the detection angle according to claim 1, wherein the base is fixed on a vertical plane at a distance of 1.5 meters from the ground to achieve the desired detection performance, the detection angle is 120 °, the detection distance near the center portion is 8 meters to 9 meters in the forward direction, and the detection distance near the edge portion is 5 meters to 6 meters in the forward direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322495563.XU CN220709386U (en) | 2023-09-14 | 2023-09-14 | Human body induction lens assembly for increasing detection angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322495563.XU CN220709386U (en) | 2023-09-14 | 2023-09-14 | Human body induction lens assembly for increasing detection angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220709386U true CN220709386U (en) | 2024-04-02 |
Family
ID=90441224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322495563.XU Active CN220709386U (en) | 2023-09-14 | 2023-09-14 | Human body induction lens assembly for increasing detection angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220709386U (en) |
-
2023
- 2023-09-14 CN CN202322495563.XU patent/CN220709386U/en active Active
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