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Combined lens and control method thereof

A technology of combining lenses and polarizing lenses, applied in the field of polarizing lenses, can solve the problems of weakened illumination, inability to control facula, singleness, etc., and achieve the effect of local changes

Pending Publication Date: 2022-08-09
CHENGDU PULSE OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the TIR lens used in lighting as an example, the four-in-one TIR lens spot will present a single circular shape, such as multiple refracting lenses in a street lamp, and the final irradiation effect is a single groove-shaped spot; during the lighting process, if any When the LED light source corresponding to one or a few lenses fails, the shape of the spot will not change, but the illuminance will be weakened; under a certain irradiation distance, if the brightness of the spot is to change with the brightness of the light source, the current common All-in-one TIR lens or all-in-one refracting lens, which have the same polarization angle, can’t change the shape of the spot by turning on and off a light source alone, so it can’t achieve the effect of controlling part of the spot

Method used

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  • Combined lens and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-5 , the combined lens of this embodiment includes a bracket 3 and four polarizing lenses 2, the polarizing lenses 2 are respectively fixed on the bracket 3 to form a matrix arrangement, and the light incident surface of each polarizing lens 2 is correspondingly arranged with a light source 1, a polarizing lens There is an included angle (or deflection angle) between the central axis of the light-emitting surface of 2 and the central axis of the light-incident surface, thus forming an off-axis design, so that the four polarizing lenses 2 all adopt different deflection angles a, which can be used when the light is irradiated. In a plane (in this embodiment, the irradiation plane is a horizontal plane), in the irradiation plane, the light emitted from the light emitting surface of the polarizing lens 2 can partially overlap in the irradiation plane to generate linearly arranged light spots.

[0031] Among them, the bracket 3 has two inclined inclined par...

Embodiment 2

[0038] refer to Figure 6-7 , the difference between this embodiment and Embodiment 1 is:

[0039] There are five polarizing lenses 2 in this embodiment, and the five polarizing lenses 2 can be arranged in a straight line, or two in one row and three in the other row, and the deflection angle of the polarizing lenses 2 is implemented according to the illumination The rules of Example 1 (deflection angles are selected in the range of 0-90 degrees respectively), and then the selection and arrangement can be made according to factors such as specific position, spacing, and deflection angle of incident light, and the embodiment will not be repeated.

Embodiment 3

[0041] refer to Figure 8-10 , the difference between this embodiment and Embodiment 1 is:

[0042] There are three polarizing lenses 2 in this embodiment. The three polarizing lenses 2 are arranged in a straight line. The deflection angles of the three polarizing lenses 2 are 20 degrees, 40 degrees and 60 degrees respectively. Auxiliary fine-tuning is done for factors such as these, and the specific values ​​will not be repeated in this embodiment. Those skilled in the art can make fine-tuning arrangements according to the needs of the actual site, and the final result is as follows: Figure 9 The speckle diagram shown, when the light source 1 corresponding to the middlemost polarizing lens 2 is turned off, it will form the following Figure 10 The spot diagram shown.

[0043] refer to Figure 10 , the control method of the combined lens of the present invention, when there are more than three polarized lenses, when the light source corresponding to the polarized lens loca...

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Abstract

The invention belongs to the technical field of lenses, and discloses a combined lens and a control method thereof.The combined lens comprises at least two spreadlight lenses, a light source is correspondingly arranged on the light incident face of each spreadlight lens, and a deflection angle is formed between the center axis of the light emergent face of each spreadlight lens and the center axis of the light incident face; and the deflection angles of at least two spreadlight lenses are different, so that light spots formed by light rays penetrating through the spreadlight lenses are linearly arranged in an irradiation plane, and the light spots are at least partially overlapped. According to the combined lens, partial control over light spots can be achieved, and meanwhile linearly-arranged light spots can be formed according to requirements of actual places.

Description

technical field [0001] The present invention relates to the technical field of polarized lenses, in particular, to a combined lens and a control method thereof. Background technique [0002] Since standardized LED light sources generally exhibit a divergent Lambertian distribution, in some specific occasions, the LED light needs to be able to illuminate a specific area of ​​a certain shape to meet the lighting needs of various occasions. The light source is used for secondary light distribution. There are many kinds of optical elements for such secondary light distribution. Most of the secondary light distribution optical elements of LED light sources in the prior art are TIR lenses or reflector cups. [0003] When two or more lenses as a whole (such as four-in-one or six-in-one) are arranged on the same plane of the PCB, at an appropriate distance, such as 10 times the distance of the optical element, the light source passes through the lens. The light spot formed by the s...

Claims

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Application Information

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IPC IPC(8): F21V5/00F21V5/04F21Y115/10
CPCF21V5/007F21V5/04F21Y2115/10
Inventor 刘志琼蒋婷婷
Owner CHENGDU PULSE OPTICAL