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Special reflective mirror for headlamps of locomotive and rail car

A mirror and track technology, applied in the direction of reflectors, lighting devices, vehicle parts, etc., can solve the problems of small size and low power, and achieve the effect of good lighting effect and improved consistency.

Inactive Publication Date: 2015-04-22
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional light sources, LED has a prominent feature. Its small size brings great flexibility to lamp design and provides convenience for lamp structure design; at the same time, the power of a single LED is small, and it needs multiple combinations to use Meet the lighting requirements, the same is true for locomotive headlights, but there is no good solution for using LED as locomotive lighting

Method used

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  • Special reflective mirror for headlamps of locomotive and rail car
  • Special reflective mirror for headlamps of locomotive and rail car
  • Special reflective mirror for headlamps of locomotive and rail car

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Embodiment 1

[0018] An embodiment of the present invention provides a special reflector for locomotives and rail car headlights, which mainly includes: N reflector units with the same focal length and surface shape, which are arranged on a fixed plate in a rectangular array;

[0019] Wherein, each reflector unit is a circular opening, and the reflective surface of each unit reflector is a rotating paraboloid.

[0020] Further, the diameter of the circular opening is 55-67 mm, and the focal length of the paraboloid of revolution is 2.0-4.0 mm.

[0021] Further, when the mirror units are arranged on a fixed plate in a square array, the fixed plate is a square with a side length of 190-260 mm.

[0022] Further, the value of N is 4-16.

[0023] For ease of description, the following uses N as 9 as an example for introduction.

[0024] Such as figure 1 As shown, it is a schematic diagram of the special reflector for the locomotive and rail car headlights. In this example, nine reflector unit...

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Abstract

The invention discloses a special reflective mirror for headlamps of a locomotive and a rail car. The special reflective mirror comprises N reflective mirror units with the same focal length and the same surface shape, wherein the N reflective mirror units are arranged on a fixing plate in a rectangular array. Each reflective mirror unit is provided with a round opening, and the reflective plane of each reflective mirror unit is a paraboloid of revolution. The reflective mirror units are arranged in the rectangular array and integrally formed, the focal length can be adjusted in a unified mode, the modular lamp design is facilitated, and the lamps manufactured through the cooperated use of the special reflective mirrors and 10 W or 5 W high-power LEDs can meet the lighting requirements of the locomotive and the rail car.

Description

technical field [0001] The invention relates to the technical field of locomotive lighting, in particular to a special reflector for headlights of locomotives and railcars. Background technique [0002] Existing locomotive headlights use a single light source, mainly tungsten-halogen bulbs or metal-halide bulbs, and the concentrating device matched with it is also a single reflector, and the diameter of the reflector is generally 356mm, 297mm, 177mm and other types. [0003] As a new generation of energy-saving, high-efficiency, and long-life light sources, LEDs are widely used in the field of lighting, and are also beginning to be tried in the field of locomotive lighting. Compared with traditional light sources, LED has a prominent feature. Its small size brings great flexibility to lamp design and provides convenience for lamp structure design; at the same time, the power of a single LED is small, and it needs multiple combinations to use To meet the lighting requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/06F21V7/10F21W101/10
CPCF21V7/06F21V7/10F21W2102/00
Inventor 王朝霞李丰田周张钰戈鹤川孙立范
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD