CN2605171Y - Light-emitting diode array railway signal device - Google Patents

Light-emitting diode array railway signal device Download PDF

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Publication number
CN2605171Y
CN2605171Y CN 03240574 CN03240574U CN2605171Y CN 2605171 Y CN2605171 Y CN 2605171Y CN 03240574 CN03240574 CN 03240574 CN 03240574 U CN03240574 U CN 03240574U CN 2605171 Y CN2605171 Y CN 2605171Y
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CN
China
Prior art keywords
light
emitting diode
light emitting
diode matrix
lens
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Expired - Fee Related
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CN 03240574
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Chinese (zh)
Inventor
方志良
刘福来
母国光
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Nankai University
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Nankai University
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Priority to CN 03240574 priority Critical patent/CN2605171Y/en
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Publication of CN2605171Y publication Critical patent/CN2605171Y/en
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Abstract

The utility model which relates to a light-emitting diode array railway signal device mainly comprises light-emitting diode array light source and lens array. The light-emitting diode array comprises a plurality of light-emitting diodes, while the lens array comprises a plurality of lens. The lens array is arranged in front of the light-emitting diode array light source, and the light-emitting diodes and the lens are one-to-one correspondent, and the optical axes of the light-emitting diodes and that of the lens are coincident. The base plane of the lens array and the plane formed by the light-emitting chip of the light-emitting diode array are parallel and the distance between the two planes is equal to the focal length of the lens. The utility model can replace various existing railway signal light comprising the incandescent lamp and the thread colored condenser lens. The light-emitting diode is superior to the incandescent lamp because of higher light-emitting efficient, less electric power consumption, safety and reliability. Therefore, the utility model has great economic and social benefits when applied in the railway department.

Description

Light emitting diode matrix railway signal device
Affiliated technical field
The utility model relates to the manufacturing of railway signal lamp, particularly a kind of light emitting diode matrix railway signal device.
Background technology
Present railway signal both domestic and external (comprise station and along the line), its light source and structure are still continued to use filament bulb decades ago, and the screw thread collector of being furnished with the look glass processing produces red, green, blue, Huang, white flashlight.The major defect of sort signal machine is that consumption of current is big, and the life-span is short, and maintenance and to change work capacity big particularly reaches the abominable outlying route of environment, climatic conditions difficulty more along the line for meagrely-populated railway, to the safety and the poor reliability of railway traffic.Therefore, how to improve the life-span of railway signal and save electric power, improve the safety and the reliability of railway signal, railway signal is decades ago continued to use in employing new light sources and technological improvement and innovation, is the problem that the railway administration system is anxious to be solved and attach great importance to.
In the last few years, because the light-emitting diode (LED) that produces red, green, blue, white light is not only produced in the development rapidly of new type light source light-emitting diode (LED), its performance figure also improved constantly and increased.LED source is grown (tens0000 hours) owing to have the life-span, the light output height, and the consumption of current of same brightness is 1/15 of a filament lamp, the angle of divergence little (30 degree) is particularly suitable as signal optical source.
Because railway signal is different from the Ordinary road signal lamp, its technical performance and index request are very high, the overhead signal lamp of railway for example, requiring the caution distance is 1000 meters, luminous bore is 180mm-200mm, the axial luminous intensity of red, green, blue, Huang, white signal lamp is not less than 2100cd, 2800cd, 400cd, 3900cd, 3200cd respectively, and its level and the vertical direction light angle of divergence are not less than 2 degree 12 minutes and 1 and spend 10 fens.For the performance that reaches railway signal lamp and the requirement of index, must carry out special optical design.Pick up document and the patent of Suo Xiangguan, application number is 00245109.3 patent, relate to the railway LED signal lamp, the light-emitting diode list lamp that is primarily characterized in that red, green, yellow, blue, white different colours by the certain distance alignment placement on a printed circuit board (PCB), be covered with a drum type brake optical plastic lens on every light-emitting diode list lamp, adopt the multipath series-parallel mode, five of the every strings of red, yellow light-emitting diode, totally four go here and there, three of blue, white, the every strings of green LED, totally four strings.The use that this design drops into railway signal lamp has certain gap: one, on a signal lamp by adorning five kinds of color LEDs, non-homogeneous arrangement, every kind of coloured light light-emitting diode at most only has 20, and the luminous intensity of existing high brightness LED is generally about 5cd-8cd.Therefore should the sort of coloured light signal of design all main performance index requirements such as luminous bore, luminous intensity, caution distance of inaccessible above-mentioned railway signal lamp; Its two, cover one drum type brake optical plastic lens on each light-emitting diode list lamp, still debuging in processing all is suitable difficulty.
The utility model content
The purpose of this utility model provides a kind of later-model light emitting diode matrix railway signal device, can satisfy railway signal optical property and technical index, uses railway signal lamp, the light output height, economize on electricity, the angle of divergence is little, good reliability has significantly great economic benefit and social benefit.
The utility model comprises that mainly light emitting diode matrix light source and condenser lens array constitute, and described condenser lens array places before the light emitting diode matrix light source, light-emitting diode and their optical axis coincidence corresponding one by one with collector lens; The distance on the plane that the condenser lens array baseplane on the described light emitting diode matrix and the luminescence chip of light emitting diode matrix constitute equals the focal length of lens.
Described light emitting diode matrix is that 91 light-emitting diodes with a shade are arranged in concentric circles or with one heart on the equilateral hexagon and be welded on the printed circuit backplane, each adjacent light-emitting diode center-to-center distance is identical at least; The vertical printed circuit backplane of each optical axis of LED.
To be 91---127 be arranged on 5---6 the concentric circles or on the concentric equilateral hexagon with the light-emitting diode of a shade described light emitting diode matrix, and be welded on the printed circuit backplane, the garden diameter can be 180---200mm outside the outmost concentric garden, and each adjacent light-emitting diode center-to-center distance is identical; The vertical printed circuit backplane of each optical axis of LED.
The focal length of each lens on the described condenser lens array is identical, and the diameter of each lens is identical.The number of lens and arrangement mode are identical with the number and the arrangement mode of the light-emitting diode of light emitting diode matrix, and the optical axis of each lens is perpendicular to optical plate glass or optical plastic lens array baseplane.
Described condenser lens array is to paste lens to constitute the condenser lens array dish or pass through mould one-step die casting lens arra with optical plastic on transparent optical plate glass; Described light-emitting diode is five kinds of light-emitting diodes that adopt red, green, blue, Huang or white light, can make the light emitting diode matrix of five kinds of coloured light respectively, can make the signal lamp of five kinds of coloured light respectively.
Its alternative present different kinds of railways signal lamp (machine) that constitutes with filament lamp and the coloured collector of screw thread of the utility model, this patent is railway interests's design-calculated novel railway signal optical system, calculates and experiment test has reached every optics domestic animal energy index of railway signal lamp through theory.
Description of drawings:
Fig. 1 (a): railway signal optical system structure overall schematic.
Fig. 1 (b): the mutual configuration relation scheme drawing of light emitting diode matrix and condenser lens array.
Fig. 2 (a): concentric circles light emitting diode matrix light source front elevational schematic.
Fig. 2 (b): equilateral hexagon light emitting diode matrix light source front elevational schematic.
Fig. 3 (a): concentric circles condenser lens array front elevational schematic.
Accompanying drawing 3 (b): equilateral hexagon condenser lens array front elevational schematic.
The specific embodiment
Shown in Fig. 1 (a) figure and Fig. 1 (b), it is mainly by light emitting diode matrix P 1With condenser lens array P 2Two parts are formed.Light emitting diode matrix P 1Shown in Fig. 2 (a) and Fig. 2 (b), it mainly is the light-emitting diode S of 91--127 certain a shade of welding on a printed circuit backplane H, the arrangement of these light-emitting diodes is on 5--6 the concentric circles or on the concentric equilateral hexagon, each optical axis of LED is parallel to each other, and is promptly all vertical with printed circuit backplane H.The spacing a of each adjacent light-emitting diodes tube hub is identical.Constitute concentric circles or the concentric equilateral hexagon light emitting diode matrix light source equidistantly arranged.Employing can rubescent, green, blue, yellow, white five kinds of different color lights light-emitting diode, can be made into the light emitting diode matrix light source of five kinds of different color lights, can obtain the flashlight of five kinds of colors.Condenser lens array P 2Shown in Fig. 3 (a) and Fig. 3 (b), it is on an optical plate glass G, with 91--127 collector lens L of optics glue, makes lens arra.The quantity of lens is identical with light emitting diode matrix with arrangement mode, promptly is arranged on 5--6 the concentric circles or with one heart on the equilateral hexagon and equidistantly, the focal length of each lens is identical, the optical axis of each lens is all perpendicular to plate glass G.Also can be designed to mould by the optics foundry engieering, be condenser lens array to die casting moulding of optical plastic.The quantity of light-emitting diode and lens will require to calculate according to luminous intensity to be determined.
Lens arra P 2With light emitting diode matrix P 1Configuration mutually is installed shown in Fig. 1 (a) and Fig. 1 (b), light emitting diode matrix P 1With lens arra P 2Parallel, and the die plane P of light emitting diode matrix 3Approximate the focal length of lens with the space D of condenser lens array.Light emitting diode matrix P 1On each light-emitting diode S and condenser lens array P 2On corresponding one by one and their optical axis of lens L coincide.
Above-mentioned position relation is mixed up, get final product by light fixture is fixing.When light emitting diode matrix through the printed circuit board (PCB) electrified light emitting behind condenser lens array optically focused, produce high brightness, colourful signal light with certain angle of divergence.The every optics domestic animal that has reached railway signal lamp can index.

Claims (6)

1, a kind of light emitting diode matrix railway signal device, it is characterized in that it comprises that mainly light emitting diode matrix light source and condenser lens array constitute, described condenser lens array places before the light emitting diode matrix light source, and their optical axis coincidence corresponding one by one with lens on the condenser lens array of the light-emitting diode on the light emitting diode matrix; The distance on the plane that the luminescence chip of described condenser lens array baseplane and light emitting diode matrix constitutes equals the focal length of lens.
2, according to the described light emitting diode matrix railway signal of claim 1 device, it is characterized in that described light emitting diode matrix is that 91 light-emitting diodes with a shade are arranged in concentric circles or with one heart on the equilateral hexagon and be welded on the printed circuit backplane, each adjacent light-emitting diode center-to-center distance is identical at least; The vertical printed circuit backplane of each optical axis of LED.
3,, it is characterized in that described light emitting diode matrix is 91---127 and is arranged on the concentric circles or with one heart on the equilateral hexagon with the light-emitting diode of a shade according to the described light emitting diode matrix railway signal of claim 2 device.
4,, it is characterized in that described condenser lens array is to constitute the condenser lens array dish with optics glue lens or with optical plastic by the mould one-step die casting on transparent optical plate glass according to the described light emitting diode matrix railway signal of claim 1 device.
5, according to the described light emitting diode matrix railway signal of claim 1 device, the focal length that it is characterized in that each lens on the described condenser lens array is identical, the diameter of each lens is identical, the number of lens and arrangement mode are identical with the number and the arrangement mode of the light-emitting diode of light emitting diode matrix, and the optical axis of each lens is perpendicular to optical plate glass or optical plastic lens array baseplane.
6, according to the described light emitting diode matrix railway signal of claim 1 device, it is characterized in that described light-emitting diode is five kinds of coloured light light-emitting diodes that adopt red, green, blue, Huang or white light, can make the light emitting diode matrix of five kinds of coloured light and the signal lamp of five kinds of coloured light respectively.
CN 03240574 2003-03-14 2003-03-14 Light-emitting diode array railway signal device Expired - Fee Related CN2605171Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03240574 CN2605171Y (en) 2003-03-14 2003-03-14 Light-emitting diode array railway signal device

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Application Number Priority Date Filing Date Title
CN 03240574 CN2605171Y (en) 2003-03-14 2003-03-14 Light-emitting diode array railway signal device

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CN2605171Y true CN2605171Y (en) 2004-03-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056000A1 (en) * 2007-11-02 2009-05-07 Beijing Ssherr Professional Lighting Co. Ltd Combined lens and light fixture using the same
CN105644588A (en) * 2016-03-24 2016-06-08 中铁第四勘察设计院集团有限公司 Dual-lamp-position railway signal machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056000A1 (en) * 2007-11-02 2009-05-07 Beijing Ssherr Professional Lighting Co. Ltd Combined lens and light fixture using the same
CN105644588A (en) * 2016-03-24 2016-06-08 中铁第四勘察设计院集团有限公司 Dual-lamp-position railway signal machine

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040303

Termination date: 20100314