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An optical lens-based LED variable information sign for highways and cities

A highway and city technology, applied in the optical field, can solve the problems of energy waste, light pollution, etc., to reduce power consumption, improve the utilization rate of light, and save the production process.

Active Publication Date: 2014-10-29
YAHAM OPTOELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Whether it is a variable information sign made of in-line LED lights or SMD LED lights as optical materials, a large amount of useless light above the water level will be generated, resulting in light pollution and energy waste

Method used

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  • An optical lens-based LED variable information sign for highways and cities
  • An optical lens-based LED variable information sign for highways and cities
  • An optical lens-based LED variable information sign for highways and cities

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] The invention performs secondary optical design on the patch LED lamp through the prism, reduces the viewing angle and improves the brightness of the available light. It meets the requirements for brightness and viewing angle in "GB-T_23828-2009_Highway LED Variable Information Signs". It removes the light above the horizontal plane emitted by the variable information sign, reduces light pollution, and saves energy.

[0031] A highway and city LED variable information sign based on an optical lens, which includes a panel 1, a prism 2 and a bottom case 3, the bottom case 3 is provided with a patch LED lamp 4, and the prism 2 includes a light incident surface 201, the light exit surface 202 and the four sides located between the light incident surface and the light exit surface, the upper, lower, left and right sides are respectively the ...

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Abstract

The invention relates to a variable information marker for freeway and urban LEDs, which comprises a panel, a prism and a bottom casing, wherein a pastor LED lamp is arranged on the bottom casing; the prism comprises a light incoming surface, a light outgoing surface and four side surfaces between the light incoming surface and the light outgoing surface; the first side surface, the second side surface, the third side surface and the fourth side surface are formed at the top, at the bottom, on the left and on the right respectively; the light of the pastor LED lamp comes in from the light incoming surface, and then total reflection occurs in the prism; and the light outgoing surface allows light to go out through a through-hole of the panel. When the pastor LED lamp is used as a light material, the wave-soldering treatment is not required, so that the wave-soldering production process is eliminated, the high temperature impact on pastor elements caused by wave-soldering is avoided, the direct damage to the pastor elements caused by wave-soldering is avoided, and the influence on the service life of the pastor elements caused by wave-soldering is avoided.

Description

technical field [0001] The invention relates to the field of optics, in particular to LED variable information signs for highways and cities. Background technique [0002] The background of this patent is based on variable information signs used in highways and urban traffic. Due to the high requirements for brightness, viewing angle and waterproof, only direct-plug LED lights can meet the requirements. [0003] When using in-line LED lamps to automatically process variable information signs, wave soldering must be used to solder the lamp pins, and this step is usually performed after PCB patch soldering. This not only adds a soldering step for wave soldering, but also causes a high temperature shock to the chip components. This impact may cause damage to SMD components or affect their service life. [0004] Because SMD LED lights usually have a large viewing angle, more than 90% of the display devices in the market use SMD LEDs with half-power angles of 120 degrees horizo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33F21V5/02F21V31/00F21Y101/02
Inventor 周双军周旭
Owner YAHAM OPTOELECTRONICS CO LTD
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