LED road lamp device for forming rectangular light spot

A technology of LED street lamps and rectangular light spots, which is applied to lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of short service life, mercury pollution, etc., and achieve the effect of small LED volume

Inactive Publication Date: 2008-01-16
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, fluorescent lamps, high-pressure mercury lamps and high-pressure sodium lamps are widely used. Although they have good luminous performance, they have problems such as short service life and easy mercury pollution. Therefore, with the "Eleventh Five-Year" Urban Green Lighting Project With the promulgation of the "Planning Outline", environmental lighting will become a hot topic

Method used

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  • LED road lamp device for forming rectangular light spot

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Effect test

Embodiment Construction

[0025] The used elements of the present invention are as follows:

[0026] Central aspherical lens: refracts the light near the main optical axis of the LED into a light parallel to the main optical axis.

[0027] Parabolic reflector: reflect the large-angle light emitted by the LED into parallel light.

[0028] Aspheric Microstructure Array: An array of dozens of square aspheric lenses refracts the light from the central aspheric lens and parabolic reflector to control the divergence angle of the outgoing light.

[0029] LED module group: LED modules with an optical system are grouped into a group and installed in a specific lamp, and the elevation angle of each group of LEDs is adjusted to finally obtain road illumination that meets the requirements of the national road lighting standard.

[0030] Instrument assembly process:

[0031] Assemble according to Figure 1, install the high-power LED on the bottom of the reflective cup, install the central aspheric collimating len...

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Abstract

The invention relates to a LED street lamp device, belonging to the field of lighting equipment. The road lighting is one of the important constituent parts of city infrastructure. With the increasing of perception of environmental protection, environmentally friendly lighting fixtures will be a hop topic. The invention provides a LED street lamp device capable of forming rectangular light spot. In the device, the LED modules 1-50 are arranged in the lighting fixture in group; the optical device is composed of an aspheric central collimating lens, a parabolic reflecting cup and an aspheric microlens array; and the LED light source is arranged at the bottom of the reflecting cup, and the aspheric microlens array is disposed perpendicular to the optical axis. Adjusting the position of aspheric central collimating lens and aspheric microlens array in the parabolic reflecting cup and the elevation angle of LED to make the light from LED parallelly emitted, and finally a rectangular light spot with uniform illumination intensity is formed on an objective illumination surface.

Description

technical field [0001] The invention belongs to the field of lighting equipment and relates to an LED street lamp device. Background technique [0002] Road lighting is one of the important components of urban infrastructure. It plays an important role in traffic safety and social security. At the same time, it can also beautify the city appearance and decorate the environment, making each city have its own style. Recently, the state has paid more and more attention to environmental protection. From the president of the country to leaders at all levels of districts and counties, the focus of work has shifted to the control of environmental pollution. "Green GDP" has also become a hot topic in daily life. As an important part of infrastructure, road lighting inevitably becomes the goal of energy saving and emission reduction. At present, fluorescent lamps, high-pressure mercury lamps and high-pressure sodium lamps are widely used. Although they have good luminous performance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21V19/00F21S8/00F21W131/103F21Y101/02F21Y107/20F21Y115/10
CPCF21Y2101/02F21W2131/103Y02B20/72F21V5/04F21Y2115/10
Inventor 刘木清李文宜周小丽张万路袁川
Owner FUDAN UNIV
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