CN202966354U - Railway signal lamp and lens component thereof - Google Patents
Railway signal lamp and lens component thereof Download PDFInfo
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- CN202966354U CN202966354U CN201220459457.5U CN201220459457U CN202966354U CN 202966354 U CN202966354 U CN 202966354U CN 201220459457 U CN201220459457 U CN 201220459457U CN 202966354 U CN202966354 U CN 202966354U
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- lens
- screen cloth
- signal lamp
- railway signal
- described screen
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Abstract
The utility model provides a railway signal lamp and a lens component thereof, wherein the railway signal lamp comprises a light source, a lens arranged in front of the light source, and a screen stencil, wherein the screen stencil is arranged in front of the lens and covers the end surface of the lens, so that the lens is between the light source and the screen stencil. As the screen stencil is placed in front of the lens of the signal lamp, the reflective area of the lens can be effectively reduced, the demand of luminous surface of a high-power LED signal lamp can be particularly met, the light halo size of the signal lamp can be effectively ensured, and occurrence of unreal images and false signals can be reduced at the same time.
Description
Technical field
The utility model relates to a kind of railway signal lamp, particularly a kind of railway signal lamp that can prevent the phantom that causes because of reflection, and the lens subassembly that is used for railway signal lamp.
Background technology
The high speed development of railway cause proposes higher requirement to railway signal lamp and railway operation safety.Common railway signal lamp comprises light source and is positioned at the lens in light source the place ahead.The semiconductor LED LED lighting technology that grew up in recent years also is applied in railway signal lamp more and more.Generally adopt at present the railway signal lamp (namely using great power LED simulation points light source) with great power LED point source of light, and be provided with cellular lens in LED point source of light the place ahead.
But for present railway signal lamp, particularly LED signal, in the situation that lamp extinguishes, form reflex time when the place ahead has high light to project on the lens of signaling gear, the phantom problem that signal seemingly is lit can occur, cause false signal.
And be at present that housing parts to LED light source carries out blackening process to this solution of problem scheme, thereby avoid producing phantom.But the problem that still exists is that the cellular lens of LED light source the place ahead placement also can produce phantom.If the part that the honeycomb lens centre is affected beyond the optical parameter part covers with black matrix, although can not affect the optical parametric of LED signaling gear, can affect the size of the output halation of signaling gear.
Therefore, need to provide a kind of technical scheme that can effectively prevent from producing because of the place ahead strong illumination phantom and false signal.
The utility model content
In view of this, the utility model proposes a kind of through improved railway signal lamp, by in lens the place aheads, screen cloth being set and effectively avoid the problem of phantom and false signal.
The utility model provides a kind of railway signal lamp, comprise light source and the lens that are positioned at light source the place ahead, this railway signal lamp also comprises: screen cloth, and be arranged on described lens the place ahead and cover the end face of described lens, thereby described lens are between described light source and described screen cloth.
Further, the core of described screen cloth is removed.And further, the removed core of described screen cloth is corresponding to the lens centre part that affects this railway signal lamp optical parametric.Alternatively, the removed core of described screen cloth is shaped as arbitrary polygon or circle.
In one example, the emitting surface of described lens is the round lens of diameter 210mm, and the removed core of described screen cloth is that diameter is the circular portion of Ф 15mm.
In one embodiment, the percent opening of described screen cloth is 40%-70%.Further, the order number of described screen cloth is less than 30 orders.Alternatively, the perforate of described screen cloth is arbitrary polygon hole or circular port.
Further, the O RunddichtringO is arranged in gap between the end face of the end face of described screen cloth and lens, and screen cloth is pressed on the end face of lens by this O type seal ring.Alternatively, described screen cloth is through inferior light blackening process.
The utility model also provides a kind of lens subassembly, and it is used for railway signal lamp and comprises lens, wherein, is provided with screen cloth at the end face of these lens.
Further, the core of described screen cloth is removed, and the removed core of described screen cloth is corresponding to this lens centre part that affects this railway signal lamp optical parametric.
In one embodiment, the emitting surface of described lens is the round lens of diameter 210, and removed this core of described screen cloth is that diameter is the circular portion of Ф 15mm.
Preferably, the percent opening of described screen cloth is 40%-70%.And the order number of described screen cloth is less than 30 orders.
In one embodiment, the O RunddichtringO is arranged in gap between the end face of the end face of described screen cloth and lens, and screen cloth is pressed on the end face of lens by this O type seal ring.Alternatively, described screen cloth is through inferior light blackening process.
Be placed on the place ahead of signal lamp lens due to this screen cloth, therefore but actv. reduces the reflective area of signal lamp lens, particularly can satisfy the requirement of high power LED signal lamp emitting surface, guarantee that effectively the halation size of signal lamp can subtract the generation of phantom and false signal simultaneously.
Description of drawings
The below will make clearer above-mentioned and other feature and advantage of the present utility model of those of ordinary skill in the art by describing preferred embodiment of the present utility model in detail with reference to accompanying drawing, in accompanying drawing:
Fig. 1 is planar view and the section drawing of cellular lens.
Fig. 2 is the planar view according to screen cloth of the present utility model.
Fig. 3 is according to the schematic plan view that is provided with the LED railway signal lamp of screen cloth of the present utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is further described.
Although the utility model can be applied to various types of railway signal lamps to solve phantom problem, next will and will specifically describe as an example of great power LED point source of light railway signal lamp example the utility model referring to Fig. 1.
In great power LED point source of light railway signal lamp, several LED adopt the symmetric configuration structure, and have several LED to light in every group.At LED point source of light front end, one cellular lens 1 are set, and honeycomb lens 1 are positioned at the focus place of signaling gear, shown in Figure 1, thus cellular lens 1 play the effect of even astigmatism.What affect the signaling gear optical parametric is the core of lens, and for different signal lamps, the size of this core also is not quite similar.In the present embodiment, for having the LED signal lamp that diameter is the 210mm emitting surface, the core that affects its optical parametric is the circular portion of the about Ф 15mm of diameter.Should be understood that the signal lamp for different size, the size of this core is not quite similar.
Next referring to Fig. 2 and Fig. 3, in order to solve the problem that produces phantom because of the strong illumination in signal lamp the place ahead, a kind of preferred solution that the utility model adopts is in cellular lens 1 the place aheads, one screen cloth 2 to be set, the basic end face that covers lens 1 of this screen cloth 2, for example be close on the end face of lens 1, thereby make lens 1 be arranged between LED light source and described screen cloth 2.Due to the existence of screen cloth, almost can not reflex to beyond lens from the go forward side by side light of light lens of signal lamp the place ahead irradiation, thereby effectively reduce because of the signal lamp phantom that a large amount of reflections of extraneous light cause, the problem of false signal.By the perforate size and number of screen cloth 2 suitably is set, can effectively avoid because of the phantom that reflection causes, the problem of false signal when guaranteeing the signal lamp luminous intensity in addition.
Further, in order to guarantee that better signal lamp has good luminous intensity and more effectively prevents that false signal from producing, and can improve above-mentioned screen cloth simultaneously.The further improvement means that the utility model adopts are to remove the suitably part 21 of size from the center of screen cloth 2.Common removed core 21 is corresponding to the lens centre part that affects the railway signal lamp optical parametric as above.The shape of the core 21 of removing can have any shape, and for example circle or polygon are as hexagon, octagon etc.In a preferred embodiment, it is the signal lamp of 210mm for emitting surface, arrange one and be close to lensed endface and substantially cover the circular screen mesh 2 of lens surface, and the removed core 21 of this screen cloth 2 is a circular portion, the diameter of this circular portion is Ф 15mm.
Through suitably selecting the order number of screen cloth 2, the various luminous intensity requirements that percent opening can satisfy signal lamp better.For example, in the utility model, the order number of screen cloth 2 is less than 30 orders, and is preferably 20 orders.From the angle of net hole rate of screen cloth, the percent opening of screen cloth 2 can be set as 40-60%, and more preferably, the percent opening of screen cloth 2 is set to 50%.Thereby can guarantee the halation of signaling gear, can effectively reduce the reflection from lens area again.The shape of the perforate on screen cloth can be selected arbitrarily as required, and for example circular port or arbitrary polygon hole are as square, hexagon, octagon etc.
Described screen cloth is connected to railway signal lamp by any connection well known in the art and technique for fixing.For example, usually the endoporus of the seam of the end cap of the external diameter of circular screen mesh and light source assembly coordinates, and screen cloth is close to the outer face of the lens of light source, one O RunddichtringO (not shown) is arranged between the end cap of the end face of described screen cloth and printing opacity source component, and screen cloth is pressed on the end face of lens by this O type seal ring, thereby realizes that screen cloth is connected connection with light source.Light source is connected to the housing of railway signal lamp such as the mode such as be bolted or be welded to connect.
Screen cloth can with any known material manufacturing, preferably adopt stainless steel material.For example, preferably use the metallic material manufacturing for the demand of the structural strength that satisfies screen cloth.In addition, can carry out inferior light blackening process to screen cloth, to reduce the reflective of screen cloth itself.
Technique effect of the present utility model
Be placed on the place ahead of light lens due to this screen cloth, therefore but actv. reduces the reflective area of light lens, the optical parametric that particularly can satisfy high power LED signal lamp requires, can effectively guarantee again the halation size of signal lamp, can reduce the false generation that shows simultaneously.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (14)
1. a railway signal lamp, comprise light source and the lens that are positioned at light source the place ahead, it is characterized in that, this railway signal lamp also comprises:
Screen cloth is arranged on described lens the place ahead and covers the end face of described lens, thereby described lens is between described light source and described screen cloth.
2. railway signal lamp according to claim 1, is characterized in that, the core of described screen cloth is removed, and the removed core of described screen cloth is corresponding to this lens centre part that affects this railway signal lamp optical parametric.
3. railway signal lamp according to claim 2, is characterized in that, the emitting surface of described lens is the round lens of diameter 210mm, and removed this core of described screen cloth is that diameter is the circular portion of Ф 15mm.
4. the described railway signal lamp of any one according to claim 1-3, is characterized in that, the percent opening of described screen cloth is 40%-70%.
5. the described railway signal lamp of any one according to claim 1-3, is characterized in that, the order number of described screen cloth is less than 30 orders.
6. railway signal lamp according to claim 1, is characterized in that, the O RunddichtringO is arranged in gap between the end face of the end face of described screen cloth and lens, and screen cloth is pressed on the end face of lens by this O type seal ring.
7. railway signal lamp according to claim 6, is characterized in that, described screen cloth is through inferior light blackening process.
8. lens subassembly, it is used for railway signal lamp and comprises lens, it is characterized in that, is provided with screen cloth at the end face of these lens.
9. lens subassembly according to claim 8, is characterized in that, the core of described screen cloth is removed, and the removed core of described screen cloth is corresponding to this lens centre part that affects this railway signal lamp optical parametric.
10. lens subassembly according to claim 9, is characterized in that, the emitting surface of described lens is the round lens of diameter 210mm, and removed this core of described screen cloth is that diameter is the circular portion of Ф 15mm.
11. according to claim 8-10 described lens subassemblies of any one is characterized in that the percent opening of described screen cloth is 40%-70%.
12. according to claim 8-10, the described lens subassembly of any one, is characterized in that, the order number of described screen cloth is less than 30 orders.
13. lens subassembly according to claim 8 is characterized in that, the O RunddichtringO is arranged in gap between the end face of the end face of described screen cloth and lens, and screen cloth is pressed on the end face of lens by this O type seal ring.
14. lens subassembly according to claim 13 is characterized in that, described screen cloth is through inferior light blackening process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459457.5U CN202966354U (en) | 2012-09-10 | 2012-09-10 | Railway signal lamp and lens component thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459457.5U CN202966354U (en) | 2012-09-10 | 2012-09-10 | Railway signal lamp and lens component thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202966354U true CN202966354U (en) | 2013-06-05 |
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ID=48507468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220459457.5U Expired - Lifetime CN202966354U (en) | 2012-09-10 | 2012-09-10 | Railway signal lamp and lens component thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202966354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013814A (en) * | 2015-10-28 | 2017-08-04 | 通用电气照明解决方案有限责任公司 | Signal of LED module |
-
2012
- 2012-09-10 CN CN201220459457.5U patent/CN202966354U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013814A (en) * | 2015-10-28 | 2017-08-04 | 通用电气照明解决方案有限责任公司 | Signal of LED module |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |