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Transmission and reflection combined type optical mask for LED lamp

A technology of LED lamps and transflections, which is applied in the field of optical masks of transflective composite LED lamps, which can solve the problems of lowering the quality of lamps, yellowing at certain angles, and yellowing of green lights at certain angles, etc., so as to improve lighting quality, avoid light dispersion, and save energy

Pending Publication Date: 2018-06-15
SOUTHWESTERN INST OF PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only greatly reduces the quality of lamps and lanterns, but also in some fields, such as traffic lights, lamps and lanterns will show different colors from the design (such as red lights appearing yellow at certain angles, green lights also appear as yellow at certain angles) yellow), causing practical application problems

Method used

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  • Transmission and reflection combined type optical mask for LED lamp
  • Transmission and reflection combined type optical mask for LED lamp
  • Transmission and reflection combined type optical mask for LED lamp

Examples

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, the optical mask of the transflective composite LED lamp of the present invention includes two or more circular reflective cups and a lens 3 . The reflective cup is an annular transparent cup composed of a reflective surface 1 and a transmissive surface 2 . The reflective surface 1 is a convex spherical surface, and the transmissive surface 2 is a concave spherical surface. The reflective surface 1 and the transmissive surface 2 are in line contact, and the line is circular. The transmission surface 2 is in line contact with the inner bottom surface of the reflective cup, and the line is circular. Both the bottom surface of the inner surface of the cup and the bottom surface of the outer surface are circular.

[0019] A lens 3 is arranged on the bottom surface of the inner surface of the first refl...

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Abstract

The invention belongs to the technical field of lamp masks, and particularly relates to a transmission and reflection combined type optical mask for an LED lamp. The transmission and reflection combined type optical mask for the LED lamp comprises two or more reflection cups and a lens, wherein the diameter of the bottom surface of the inner surface of a second reflection cup is consistent with that of the bottom surface of a first reflection cup, the diameter of the bottom surface of the inner surface of a third reflection cup is consistent with that of the bottom surface of the second reflection cup and so on, the lens is arranged on the bottom surface of the inner surface of the first reflection cup, and the maximum diameter of the lens is consistent with the diameter of the bottom surface of the inner surface of the reflection cups. By means of mutual cooperation of the lens and the reflection cups, reasonable distribution of luminous flux is realized, luminous flux utilization rate of a light source is increased as far as possible and energy is saved while optical requirements of different lamps are met, meanwhile, dispersion of light is greatly prevented, and illuminating quality of the LED lamp is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of lamp masks, in particular to a transmission-reflection composite LED lamp optical mask. Background technique [0002] With the improvement of the luminous efficiency and power of the fourth-generation light source, the LED (Light Emitting Diode, LED), the LED is being applied to more and more fields. However, as a point light source, LED must undergo secondary optical design to adapt to the specific requirements of various lighting fixtures. Currently, high-power LEDs are becoming mainstream products in the market. In the field of secondary optical design, there are usually two schemes: lens and reflective cup. Since the reflective cup cannot effectively distribute the luminous flux in the center of the LED, the lens has become the mainstream of the secondary optical design of LED lamps. However, high-power LEDs not only have high luminous flux and luminous efficiency, but their light is usually polychr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/68F21K9/69F21V7/04F21V5/04F21V7/22F21Y115/10
CPCF21V5/04F21V7/04F21V7/22
Inventor 李建王坤
Owner SOUTHWESTERN INST OF PHYSICS
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