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TIR lens optimization design method, terminal and storage medium

An optimized design and lens technology, applied in lighting and heating equipment, components of lighting devices, lighting devices, etc., can solve the problems of unbalanced expansion of light sources and post-processing structures of optical devices

Pending Publication Date: 2021-01-29
东莞市爱加照明科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose a TIR lens optimization design method, terminal and storage medium, which aims to solve the technology that the traditional TIR lens design method cannot balance the impact caused by post-processing structures such as light mixing and color mixing of expanded light sources and optical devices question

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  • TIR lens optimization design method, terminal and storage medium
  • TIR lens optimization design method, terminal and storage medium
  • TIR lens optimization design method, terminal and storage medium

Examples

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Embodiment 1

[0028] like figure 1 As shown, Embodiment 1 of the present invention provides a method for optimizing the design of a TIR lens, and the detection method includes the following steps:

[0029] Step S110: Calculate the initial light intensity distribution corresponding to the target angle and the initial exit light angle under the point light source, and calculate the coordinates of all points on the initial back-mode free curve according to the initial light intensity distribution, initial exit light angle and incident light parameters.

[0030] Specifically, to design a TIR lens, it is necessary to know the relevant size data of the TIR lens (including the outer dimension of the TIR lens, the thickness of the flange, the width of the flange, the radius of the bottom hole, the draft angle of the bottom hole), the material of the TIR lens (The refractive index of the TIR lens can be determined) and the target angle of the light exiting the TIR lens.

[0031] At this time, based...

Embodiment 2

[0052] Embodiment 2 of the present invention proposes a specific design case of a TIR lens. It is known that the target external dimension of the TIR lens to be designed is Φ40xH23mm, the light emitting surface of the light source is flush with the bottom hole of the TIR lens, and the thickness of the flange is 1.8mm. The blue width is 2mm, the radius of the bottom hole is 6mm, and the draft angle of the bottom hole is 2 degrees, that is: the optical part R=18MM, r=6mm, H 1 =21.2mm, α=2°, the material is PMMA (Polymethyl methacrylate, also known as acrylic, acrylic).

[0053] At this time, based on these known parameters, the initial light intensity distribution corresponding to the target angle and the initial exit light angle can be calculated under the point light source, and the initial back mode freedom can be calculated according to the initial light intensity distribution, initial exit light angle and incident light parameters The coordinates of all points of the curve,...

Embodiment 3

[0055] like Figure 10 As shown, Embodiment 3 of the present invention proposes a terminal 20, the terminal 20 includes a memory 21, a processor 22, a program stored in the memory and operable on the processor, and a program for implementing the processor 21 and the memory 22 The data bus 23 for connection and communication between them, when the program is executed by the processor, implements the steps of the method for optimizing the design of the TIR lens in the first embodiment above, as described above specifically, and will not be repeated here.

[0056] It should be noted that the embodiment of the terminal 20 and the method embodiment 1 in the embodiment of the present invention belong to the same idea, and the specific implementation process is detailed in the method embodiment 1, and the technical features in the method embodiment 1 are the same as in the terminal 20 embodiment. Correspondingly applicable, no more details here.

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Abstract

The invention discloses a TIR lens optimization design method, a terminal and a storage medium, and the method comprises the steps: calculating initial light intensity distribution and an initial emergent light angle corresponding to a target angle under a point light source, and solving all point coordinates of an initial rear mode free curve according to the initial light intensity distribution,the initial emergent light angle and incident light parameters; performing curve fitting and optical simulation operation on all point coordinates of the initial rear mold free curve to obtain an initial light distribution curve; and analyzing the curve state of the initial light distribution curve, and when the initial light distribution curve has a fluctuation defect and a center unsmooth defect, correcting the initial light intensity distribution through a cosine function and correcting the initial emergent light angle through a stimulation value until a target light distribution effect isachieved. According to the technical scheme, the technical problem that a traditional TIR lens design method cannot balance and expand influences caused by light mixing, color mixing and other post-processing structures of a light source and an optical device can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of TIR lens optimization design, in particular to a method, terminal and storage medium for TIR lens optimization design. Background technique [0002] The traditional TIR (Total Internal Reflection, total internal reflection) lens design method is based on the point light source approximation theory, and uses the iterative method to calculate the discrete points on the free-form surface of the TIR lens to obtain the free curve, then 3D modeling, and then simulates and optimizes through optical simulation software to complete the goal The whole design process of TIR lens. However, in the actual design process, we found that due to the interference caused by the light-mixing and color-mixing structure of the expanded light source and optical devices, the light distribution curve of the lens designed in this way tends to have some sharp protrusions or depressions More obvious phenomena, such as the smooth tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/10F21V5/04
CPCG06F30/10F21V5/04
Inventor 熊统林小炜
Owner 东莞市爱加照明科技有限公司