High beam and low beam integrated LED headlamp

A technology for LED lamps and headlamps, applied in the field of vehicle lighting, can solve the problems of easy aging of materials of composite ellipsoid reflectors, processing cost, high difficulty in manufacturing process, failure and the like

Active Publication Date: 2017-07-28
SHENZHEN ZIHONG OPTICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are problems that are difficult to solve: due to the essential difference in the light-emitting characteristics of LEDs, halogen lamps and xenon lamps, the light distribution performance cannot meet the requirements of "GB 4599-2007 Filament Bulb Headlamps for Automobiles" and "GB25991 LED Headlamps for Automobiles" regulatory requirements
[0005] The second is a scheme composed of LED light source chips, composite ellipsoidal reflectors, light barriers, and lenses; the existing problems are: ①Since the composite ellipsoi

Method used

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Embodiment Construction

[0020] The distance-near integrated LED headlamp proposed in the present invention includes an LED light source, a lens group, a light distribution unit, a movable cut-off light barrier and a condenser lens arranged in sequence. In the present invention, we define the direction from the LED light source to the condenser lens as Z Axis, the focal length of the lens group falls on the optical axis of the corresponding LED light source, that is, in the direction parallel to the Z axis. The light distribution unit and the movable cut-off light barrier are located on the upper and lower sides of the optical axis of the LED light source. The up and down direction perpendicular to the optical axis of the LED light source is set as the Y axis, and the left and right direction perpendicular to the optical axis of the LED light source is set as the X axis.

[0021] The LED light source selected in the present invention provides sufficient luminous flux, and through the light distribution de...

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Abstract

The invention discloses a high beam and low beam integrated LED headlamp. The high beam and low beam integrated LED headlamp comprises an LED light source, a lens set, a light distributing unit, a movable cut-off light barrier and a collecting lens which are sequentially arranged, wherein the focus of the lens set is on an optical axis of the corresponding LED light source; the light distributing unit and the movable cut-off light barrier are correspondingly positioned at the upper side and the lower side of the optical axis of the LED light source. The high beam and low beam integrated LED headlamp is simple in structure, and low in cost, and meets the demand of a high beam and a low beam.

Description

Technical field [0001] The present invention relates to the technical field of vehicle lighting, in particular to a far-near integrated LED headlamp. Background technique [0002] The application of LED light sources in the field of automotive headlights is still in its infancy. The main reason is that various engineering technical problems such as light distribution design, heat dissipation, stress, and volume have not been well resolved during the specific implementation process. Among them, light distribution design, heat dissipation, and heat resistance design face more problems. [0003] For example, there are currently two main types of light distribution design schemes for automotive LED headlights: [0004] One is to use small LED wicks to directly replace the original halogen bulbs or xenon bulbs of models such as H4 and H7 in the traditional large-size curved reflector lamp cup. There are problems that are difficult to solve: due to the essential difference in the luminou...

Claims

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Application Information

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IPC IPC(8): F21S8/10F21V5/04F21V19/00F21V14/08F21V5/00F21Y115/10F21W101/02F21W101/10F21W107/10
CPCF21S41/143F21S41/692F21V5/008F21W2107/10F21W2102/00
Inventor 廖汉忠姚波杨涛王野吕长江
Owner SHENZHEN ZIHONG OPTICAL TECH CO LTD
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