CN2577303Y - LED light pipe light-source apparatus for scanning - Google Patents
LED light pipe light-source apparatus for scanning Download PDFInfo
- Publication number
- CN2577303Y CN2577303Y CN 02258241 CN02258241U CN2577303Y CN 2577303 Y CN2577303 Y CN 2577303Y CN 02258241 CN02258241 CN 02258241 CN 02258241 U CN02258241 U CN 02258241U CN 2577303 Y CN2577303 Y CN 2577303Y
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- light
- reflection configuration
- scanning
- pipe
- light guide
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model relates to an LED light pipe light source device for scanning, which is characterized in that a transparent light pipe or a light guide rod is used as a light guide body [1]; the two ends of the light guide body are respectively provided with LED light emitting pipes [2] of high brightness; the wall surface of the light guide body [1] is provided with a reflection configuration [3] formed by arraying micro reflection inclined planes along axial direction; the reflection configuration [3] is arranged around the circumferential direction of the light guide body to form a linear light emitting body structure. The proposal uses the LED light emitting pipes of high brightness as point light sources which can project in the light guide body from the two side ends, and converts light rays into linear and uniform light sources for scanning by the reflection configuration arranged on the light guide body to replace existing cold/hot cathode light pipes. The utility model has the advantages of uniform and stable brightness and instant lighting, and is a novel linear scanning light source. The service lives and the reliability of the light pipes are greatly enhanced.
Description
Technical field
The utility model relates to the light supply apparatus of scanning usefulness in scanner, duplicating machine and the similar devices, is specifically related to a kind of scanning light source that adopts high-brightness LED (light emitting diode) to constitute with the light pipe combination.
Background technology
In scanning kind equipments such as scanner, fluorescent tube is a kind of special light sources, and parameters such as its briliancy, brightness uniformity, brightness constancy, preheating time, life-span directly influence quality of scanning and performance.Existing scanning has two kinds usually with fluorescent tube, and a kind of is cold-cathode tube, and this fluorescent tube uses commonplace; Another kind is a HCFL, and this fluorescent tube uses less.Cold cathode fluorescent lamp is made of glass tube, filament and interior inflation body, glass tube constitutes a tubulose confined space, the inboard, two ends of glass tube is provided with filament, the outside is provided with electrode, be filled with gases such as mercury, phosphorus in the pipe, the electrode of fluorescent tube connects high frequency, High Level AC Voltage during work, the filament at two ends energising back gas breakdown and light is sent out.The structure and the cold cathode fluorescent lamp of HCFL are roughly the same, and filament and in to fill body gas different.Existing scanning fluorescent tube has following deficiency: 1, the serviceable life of fluorescent tube short, its reason is that the filament heating causes fracture of wire easily and causes fluorescent tube to damage when cold cathode fluorescent lamp work (even temperature 60～70 degree are also arranged); 2, need warm before fluorescent tube is opened, have 30 seconds preheating time, 40 seconds or 1 fen half do not wait, this makes scanner give slow sensation; 3, its brightness is influenced by ambient temperature and unstable, and luminosity was bright partially when environment temperature was high, otherwise dark partially.For this reason, the utility model provides a kind of LED light pipe light supply apparatus from the development of new scanning angle with light source, overcoming the prior art deficiency, for the quality that further improves scanning light source proactive.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of scanning LED light pipe light supply apparatus, with transparent light guide pipe or lamp guide is light conductor, at its two ends the high-brightness LED luminotron is set respectively, the wall upper edge of light conductor is axially arranged with by small reflecting slant arranges the reflection configuration that constitutes, reflection configuration ring light conductor circumferential arrangement constitutes the wire luminous body structure with this.
Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, described reflection configuration has two kinds of forms:
(1), reflection configuration is made of small zigzag structure, wherein the inclined-plane in the zigzag structure is a reflecting surface, the zigzag structure on the light conductor length direction is with the mid point left-right symmetric.The light that sends when the pointolite (high-brightness LED luminotron) in left side can be reflected into linear light source by half section reflecting surface through a left side from light conductor one end-fire is fashionable like this, and the light that the pointolite on right side sends can be reflected into linear light source by half section reflecting surface through the right side when the light conductor other end is injected, about two sections synthetic whole linear light sources.
(2), reflection configuration is made of small isoceles triangle tooth-shape structure, wherein two waist inclined-planes in the isoceles triangle tooth-shape structure are reflecting surface.Under this structure, the pointolite of the left and right sides intersects mutually and utilizes ipsilateral not that the light of incident is reflected into linear light source.
2, in the such scheme,, can be provided with transmission plane as exit facet in a side of light conductor, and remaining side is provided with reflection configuration in order better to collect and utilize light.Can be combined into the light conductor structure of another kind of form like this.
3, in the such scheme, about the transparent light guide body structure two kinds of forms can be arranged: first kind is as light conductor with transparent real core lamp guide; Second kind is as light conductor with transparent hollow light pipe.
When light conductor was transparent real core lamp guide, its reflection configuration was located on the outside surface of barred body.When light conductor was transparent hollow light pipe, being provided with of reflection configuration can have following three kinds of situations:
(1), reflection configuration is located on the outside surface of body;
(2), reflection configuration is located on the inside surface of body;
(3), reflection configuration is located on the outside surface and inside surface of body.
4, from prior art, though the high-brightness LED luminotron still remains to be improved aspect brightness at present, utilize existing high-brightness LED luminotron as pointolite of the present utility model, it is feasible making the plain scan light source.If circuit and the reflection organization to existing high-brightness LED luminotron improved again, also can further improve illumination effect.This problem is not at the row of this programme discussion.
The utility model principle of work is:, be projeced in the light conductor from two side ends as pointolite with the high-brightness LED luminotron, and by reflection configuration set on the light conductor light changed and to change into wire and evenly scan and use light source, to replace existing hot and cold negative electrode fluorescent tube.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, the utility model brightness stability, not influenced by ambient temperature.
2, the utility model can instant igniting, does not have preheating time.
3, the utility model brightness is even, can not decay significantly as the such two ends brightness of hot and cold fluorescent tube.
4, the utility model does not produce high heat, so serviceable life and reliability improve greatly.
5, the utility model need not use inverter that the high-frequency and high-voltage power supply is provided, so circuit structure is fairly simple.
Description of drawings
Accompanying drawing 1 is the utility model embodiment one structural representation;
Accompanying drawing 3 is the utility model embodiment two structural representations;
Synoptic diagram when accompanying drawing 4 is applied in the scanner as scanning light source for the utility model.
In the above accompanying drawing: 1, light conductor; 2, high-brightness LED luminotron; 3, reflection configuration; 4, sweep trace inlet; 5, transmission plane.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to accompanying drawing 1, Fig. 2 and shown in Figure 4, a kind of scanning LED light pipe light supply apparatus, it is configured to: with transparent circular lamp guide is light conductor 1, a high-brightness LED luminotron 2 is set respectively at its two ends, the outside surface upper edge of light conductor 1 is axially arranged with by small reflecting slant arranges the reflection configuration 3 that constitutes, and reflection configuration 3 is around the light conductor circumferential arrangement.Described reflection configuration 3 is made of small zigzag structure, and wherein the inclined-plane in the zigzag structure is a reflecting surface, and the zigzag structure on the light conductor length direction constitutes the wire luminous body structure with the mid point left-right symmetric with this.The light that the high-brightness LED luminotron 2 at two ends sends during work projects in the light conductor 1 from transparent real core light conductor two ends, and is reflected into the stabilized uniform linear light source through symmetrical two halves section reflecting surface.
Embodiment two: referring to accompanying drawing 3 and shown in Figure 4, a kind of scanning LED light pipe light supply apparatus, it is configured to: with transparent real core lamp guide is light conductor 1, a high-brightness LED luminotron 2 is set respectively at its two ends, light conductor 1 the top side be provided with transmission plane 5 as exit facet, and remaining circle lacks the side and is provided with reflection configuration 3.Reflection configuration 3 is provided with vertically and is made of small reflecting slant arrangement, reflection configuration 3 lacks outside surface around circle and circumferentially forms the small serrate groove structure of a circle circle, wherein the inclined-plane in the zigzag structure is a reflecting surface, zigzag structure on the light conductor length direction constitutes the wire luminous body structure with the mid point left-right symmetric with this.The light that the high-brightness LED luminotron 2 at two ends sends during work projects in the light conductor 1 from transparent real core light conductor two ends, and is reflected into the stabilized uniform linear light source through symmetrical two halves section reflecting surface.
Claims (6)
1, a kind of scanning LED light pipe light supply apparatus, it is characterized in that: with transparent light guide pipe or lamp guide is light conductor [1], high-brightness LED luminotron [2] is set respectively at its two ends, the wall upper edge of light conductor [1] is axially arranged with by small reflecting slant arranges the reflection configuration [3] that constitutes, reflection configuration [3] ring light conductor circumferential arrangement constitutes the wire luminous body structure with this.
2, scanning according to claim 1 LED light pipe light supply apparatus, it is characterized in that: described reflection configuration [3] is made of small zigzag structure, wherein the inclined-plane in the zigzag structure is a reflecting surface, and the zigzag structure on the light conductor length direction is with the mid point left-right symmetric.
3, scanning according to claim 1 LED light pipe light supply apparatus, it is characterized in that: described reflection configuration [3] is made of small isoceles triangle tooth-shape structure, and wherein two waist inclined-planes in the isoceles triangle tooth-shape structure are reflecting surface.
4, scanning according to claim 1 LED light pipe light supply apparatus, it is characterized in that: a side of described light conductor [1] is provided with transmission plane [5] as exit facet, and remaining side is provided with reflection configuration [3].
5, scanning according to claim 1 LED light pipe light supply apparatus, it is characterized in that: described light conductor [1] is the transparent light guide pipe, and reflection configuration [3] is located on the outside surface or inside surface of body.
6, scanning according to claim 1 LED light pipe light supply apparatus, it is characterized in that: described light conductor [1] is the transparent light guide pipe, and reflection configuration [3] is located on the outside surface and inside surface of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258241 CN2577303Y (en) | 2002-11-01 | 2002-11-01 | LED light pipe light-source apparatus for scanning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258241 CN2577303Y (en) | 2002-11-01 | 2002-11-01 | LED light pipe light-source apparatus for scanning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577303Y true CN2577303Y (en) | 2003-10-01 |
Family
ID=33726010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258241 Expired - Fee Related CN2577303Y (en) | 2002-11-01 | 2002-11-01 | LED light pipe light-source apparatus for scanning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577303Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200257A (en) * | 2011-05-26 | 2011-09-28 | 吴光 | Reflector and light-emitting diode (LED) illuminating device |
| CN101634427B (en) * | 2008-07-25 | 2011-12-07 | 优志旺电机株式会社 | Light guide body and linear light source device |
| CN103775972A (en) * | 2014-01-30 | 2014-05-07 | 上海战古电子科技有限公司 | LED (light emitting diode) adaptive lighting device with reflection film |
| CN104570193A (en) * | 2013-10-09 | 2015-04-29 | 虹光精密工业股份有限公司 | Double-slope light guide column and light source module and scanner optical assembly using same |
-
2002
- 2002-11-01 CN CN 02258241 patent/CN2577303Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634427B (en) * | 2008-07-25 | 2011-12-07 | 优志旺电机株式会社 | Light guide body and linear light source device |
| CN102200257A (en) * | 2011-05-26 | 2011-09-28 | 吴光 | Reflector and light-emitting diode (LED) illuminating device |
| CN102200257B (en) * | 2011-05-26 | 2012-08-22 | 吴光 | Reflector and light-emitting diode (LED) illuminating device |
| CN104570193A (en) * | 2013-10-09 | 2015-04-29 | 虹光精密工业股份有限公司 | Double-slope light guide column and light source module and scanner optical assembly using same |
| CN103775972A (en) * | 2014-01-30 | 2014-05-07 | 上海战古电子科技有限公司 | LED (light emitting diode) adaptive lighting device with reflection film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |