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Light-emitting diode (LED) indoor illumination optical lens

An optical lens and indoor lighting technology, applied in the direction of lighting devices, lighting and heating equipment, parts of lighting devices, etc., can solve problems such as difficult to meet the performance indicators of lighting lamps and devices, reduce system efficiency, etc., to achieve easy promotion and use, The effect of widening the field of use and improving the efficiency of use

Inactive Publication Date: 2012-06-06
XIAN DAYU PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such a light field distribution is directly applied without proper optical system processing, it will be difficult to meet the performance indicators of lighting fixtures and devices in most cases, and it will also greatly reduce the system performance due to the existence of a large amount of invalid light. efficiency

Method used

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  • Light-emitting diode (LED) indoor illumination optical lens
  • Light-emitting diode (LED) indoor illumination optical lens
  • Light-emitting diode (LED) indoor illumination optical lens

Examples

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Embodiment Construction

[0019] Such as figure 1 , figure 2 with image 3 As shown, the optical lens 1 of the present invention has a rotationally symmetric structure. The bottom surface of the optical lens 1 is provided with a concave inward hemispherical surface 2 that prevents the light from the LED entering the lens from being deflected. An LED is installed at the center of the sphere, the outer surface of the optical lens 1 is a free-form surface with a constantly changing curvature that controls the direction of the light emitted by the LED, and the radius of the hemispherical surface 2 is Among them, R is the radius of the bottom surface of the optical lens 1.

[0020] Such as figure 1 , figure 2 with image 3 As shown, in this embodiment, the radius of the hemispherical surface 2 is The lens 1 is made of glass, optical glass or plastic, and the free-form surface of the optical lens 1 changes with the change of the material.

[0021] Such as image 3 As shown, the principle of solving the free-fo...

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Abstract

The invention discloses a light-emitting diode (LED) indoor illumination optical lens, which is of a rotary symmetrical structure, wherein a concave hemispherical surface which makes the LED emergent ray enter the lens without deflection is arranged at the bottom of the optical lens, an LED is installed at the sphere center of the hemispherical surface, the external surface of the optical lens is a free-form surface which controls the direction of the LED emergent ray and has continuously changed curvature, the radius of the hemispherical surface is 1 / 3R to 1 / 2R, wherein R is the radius of the bottom of the optical lens. The LED indoor illumination optical lens has a simple structure, reasonable design, uniform LED illumination, high illumination efficiency, widened LED utilization scope, is energy-saving and environmental-friendly, has a good use effect, and is convenient to popularize and use.

Description

Technical field [0001] The invention belongs to the technical field of LED indoor lighting, and in particular relates to an LED indoor lighting optical lens. Background technique [0002] With the continuous development of semiconductor materials and processes, light-emitting diodes (LEDs) are gradually replacing traditional light sources and becoming a new generation of light sources. Although it has the advantages of high efficiency, environmental protection, durability and safety, its emitted light intensity has a roughly cosine distribution, so it is generally regarded as an approximate Lambertian radiator. Such light field distribution, if it is directly applied without proper optical system processing, in most cases it is difficult to meet the performance indicators of lighting fixtures and devices. At the same time, it will greatly reduce the system's performance due to the existence of a large amount of ineffective light. effectiveness. The secondary optical design for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21Y101/02
Inventor 张超胡剑峰
Owner XIAN DAYU PHOTOELECTRIC TECH
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