CN209821922U - Ultraviolet light linear light source - Google Patents
Ultraviolet light linear light source Download PDFInfo
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- CN209821922U CN209821922U CN201920577939.2U CN201920577939U CN209821922U CN 209821922 U CN209821922 U CN 209821922U CN 201920577939 U CN201920577939 U CN 201920577939U CN 209821922 U CN209821922 U CN 209821922U
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Abstract
The utility model provides a linear light source of ultraviolet ray. The ultraviolet linear light source includes: the light guide body is of a columnar structure, light incident surfaces are arranged at two ends of the light guide body, and a columnar surface of the light guide body is a light emergent surface; the ultraviolet light source and the visible light source are respectively arranged at the light inlet faces at two ends of the light guide body, the ultraviolet light source can at least emit ultraviolet light of short wave, and the light transmittance of the light guide body to the ultraviolet light of the short wave reaches more than 50%. The utility model discloses the problem that ultraviolet ray lamps and lanterns structure is complicated, the security is poor among the prior art has been solved effectively.
Description
Technical Field
The utility model relates to an image information handles technical field, particularly, relates to a linear light source of ultraviolet ray.
Background
The current circulating paper money generally comprises an ultraviolet anti-counterfeiting technology, wherein an ultraviolet anti-counterfeiting mark is arranged on the paper money, and specific information can be displayed under the irradiation of specific ultraviolet light wavelength. For part of currencies, especially Euro, part of ultraviolet information contained in the currency can be excited only in a UVC wave band, and ultraviolet LEDs adopted by image sensor products in counterfeit identifiers on the market at present are mainly ultraviolet light in a 365nm wave band and cannot completely excite the contained ultraviolet information; and the light guide strip is made of PMMA material, the material can be transparent when the wavelength is 320-400 nm for long wave ultraviolet UVA, but can be directly absorbed and cannot be transparent when the wavelength is 200-280nm for short wave ultraviolet UVC.
The short-wave ultraviolet lamps in the market at present mainly use low-pressure mercury lamps in a lamp tube form, are large in size, have great harm to human bodies due to short-wave ultraviolet rays, can burn skins after short-time irradiation, can cause skin cancer after long-time or high-intensity irradiation, and are inconvenient to use when being used for counterfeit identification of securities. If the LED array structure is adopted, the heat productivity of the LED is very large, and in order to ensure the normal operation of the equipment, heat dissipation equipment such as a fan and the like is required to be added, so that the volume of the whole equipment is increased, and the cost is increased.
The problems that the ultraviolet lamp in the prior art is complex in structure and poor in safety can be known.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a linear light source of ultraviolet light to solve the problems of complicated structure and poor safety of the prior art ultraviolet light lamps.
In order to achieve the above object, according to an aspect of the present invention, there is provided an ultraviolet linear light source, including: the light guide body is of a columnar structure, light incident surfaces are arranged at two ends of the light guide body, and a columnar surface of the light guide body is a light emergent surface; the ultraviolet light source and the visible light source are respectively arranged at the light inlet faces at two ends of the light guide body, the ultraviolet light source can at least emit ultraviolet light of short wave, and the light transmittance of the light guide body to the ultraviolet light of the short wave reaches more than 50%.
Further, the light guide body is at least one of optical quartz glass, soda-lime-silica short-wave ultraviolet glass and soda-lime ultraviolet glass.
Further, the light guide is ultraviolet-transmitting black glass.
Further, the light guide is at least one of a cylindrical shape, a polygonal prism shape, and an elliptic cylinder shape.
Further, the light incident surface is at least one of a circle, an ellipse, and a polygon.
Furthermore, the ultraviolet linear light source also comprises a shielding structure which is arranged on the columnar surface, so that the part of the columnar surface which is not shielded by the shielding structure is used as a light-emitting surface.
Further, the ultraviolet linear light source further comprises a reflecting plate, and the reflecting plate is arranged on one side of the light guide body and faces the light emitting surface.
Further, the length of the reflection plate coincides with the length of the light guide.
Further, the reflection plate is a metal plate.
Furthermore, the ultraviolet linear light source further comprises a plurality of bearing substrates, and at least one bearing substrate is respectively arranged at two ends of the light guide body.
Further, the ultraviolet light source and the visible light source are connected with the bearing substrate in a welding mode; and/or the ultraviolet light source and the visible light source are connected with the bearing substrate in a mounting pressure welding mode.
Use the technical scheme of the utility model, the linear light source of ultraviolet ray in this application includes light conductor, ultraviolet light source and visible light source. The light guide body is of a columnar structure, light incident surfaces are arranged at two ends of the light guide body, and the columnar surface of the light guide body is a light emergent surface; the ultraviolet light source and the visible light source are respectively arranged at the light incident surfaces at two ends of the light guide body, the ultraviolet light source can at least emit ultraviolet light of short wave, and the light transmittance of the light guide body to the ultraviolet light of the short wave reaches more than 50%.
When the ultraviolet linear light source with the above structure is used, the ultraviolet light source and the visible light source 30 are respectively arranged at the light incident surfaces at the two ends of the light guide body, so that the light emitted by the ultraviolet light source and the visible light source 30 can be transmitted along the length direction of the light guide body, and the emitted light can be uniformly emitted outwards on the light emergent surface. Therefore, the number of the ultraviolet light sources and the visible light sources 30 can be effectively reduced, the heat productivity of the ultraviolet light sources and the visible light sources 30 can be effectively reduced, and the ultraviolet linear light source has the characteristics of low cost and miniaturization. And, because the light guide body reaches more than 50% to the luminousness of the ultraviolet ray of shortwave, can guarantee that the light guide body has the printing opacity effect of certain intensity to ultraviolet light source, make the linear light source of ultraviolet ray can satisfy normal work demand.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an ultraviolet linear light source according to an embodiment of the present invention;
FIG. 2 is a schematic view of the UV linear light source of FIG. 1 with a reflector plate;
fig. 3 is a schematic structural diagram of a light guide body in an ultraviolet linear light source according to another embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a light guide; 20. an ultraviolet light source; 30. a visible light source; 40. a reflective plate; 50. a substrate is carried.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
In order to solve the problem that ultraviolet ray lamps and lanterns structure is complicated among the prior art, the security is poor, this application provides an ultraviolet ray linear light source.
As shown in fig. 1 to 3, the ultraviolet linear light source in the present application includes a light guide 10, an ultraviolet light source 20, and a visible light source 30. The light guide body 10 is of a columnar structure, two ends of the light guide body 10 are provided with light incident surfaces, and the columnar surface of the light guide body 10 is a light emergent surface; the ultraviolet light source 20 and the visible light source 30 are respectively disposed at the light incident surfaces at two ends of the light guide 10, the ultraviolet light source 20 can emit at least short-wave ultraviolet light, and the light transmittance of the light guide 10 to the short-wave ultraviolet light reaches more than 50%.
When the ultraviolet linear light source with the above structure is used, the ultraviolet light source 20 and the visible light source 30 are respectively disposed at the light incident surfaces at two ends of the light guide 10, so that light emitted from the ultraviolet light source 20 and the visible light source 30 can be transmitted along the length direction of the light guide 10, and the emitted light can be uniformly emitted outward on the light emitting surface. Therefore, the number of the ultraviolet light sources 20 and the visible light sources 30 can be effectively reduced, the heating value of the ultraviolet light sources 20 and the heating value of the visible light sources 30 can be effectively reduced, and the ultraviolet linear light source has the characteristics of low cost and miniaturization. In addition, since the light transmittance of the light guide body 10 to the ultraviolet light with short wave reaches more than 50%, the light guide body 10 can ensure the light transmittance effect with certain intensity to the ultraviolet light source 20, so that the ultraviolet linear light source can meet the normal working requirement.
It should be noted that, in the present application, the light guide 10 in the ultraviolet linear light source further has a light reflection surface, the light reflection surface is disposed inside the light guide 10 and is disposed along the length direction of the light guide 10, and by disposing the light reflection surface, the propagation direction of light inside the light guide 10 can be changed, so as to ensure that light emitted by the ultraviolet light source 20 and the visible light source 30 can be transmitted inside the light guide 10 along the length direction and the light can be uniformly emitted out on the light emitting surface.
Optionally, the light guide 10 is at least one of optical quartz glass, soda-lime-silica short-wave ultraviolet glass, and soda-lime-ultraviolet glass. Because the wavelength of the medium-wave ultraviolet light is between 280-4320nm, the wavelength of the short-wave ultraviolet light is between 200-280nm, the penetration capacity is weak, and the common glass has strong absorption effects on the medium-wave ultraviolet light and the short-wave ultraviolet light, the light guide body 10 can be effectively ensured to meet the requirement that the light transmittance of the light guide body 10 to the short-wave ultraviolet light reaches more than 50% by selecting the materials, so that the ultraviolet linear light source can normally work. Of course, if the light guide 10 has a transmittance of 50% or more for short-wavelength ultraviolet light, other materials may be selected as the material for manufacturing the light guide 10.
In a specific embodiment, a quartz glass sheet is used as the material for the light guide 10. The optical properties of the quartz glass sheet can not only transmit ultraviolet rays of all bands, but also transmit visible light and near infrared spectrum. And because the quartz glass is high temperature resistant, the thermal expansion coefficient is extremely small, the chemical stability is good, and the bubbles, the stripes, the uniformity and the birefringence can be compared favorably with the common optical glass, the quartz glass is an indispensable optical material with high-stability optical coefficient when working in various severe occasions.
Optionally, the light guide 10 is ultraviolet-transmissive black glass. Through setting up like this, can further guarantee that light guide 10 reaches more than 50% to the luminousness of the ultraviolet ray of shortwave, and then guarantee the working property of ultraviolet ray linear light source.
Optionally, the light guide 10 is at least one of cylindrical, polygonal cylindrical, and elliptical cylindrical. Of course, the light guide 10 may be formed in other regular shapes, and this arrangement can effectively ensure uniformity of light exiting from the light emitting surface of the light guide 10.
As shown in fig. 2, in one embodiment of the present application, the light guide 10 is provided as a cylinder having a circular cross section, and the ultraviolet light source 20 and the visible light source 30 are respectively provided at both ends of the light guide 10.
Optionally, the light incident surface is at least one of a circle, an ellipse, and a polygon. With the arrangement, the ultraviolet light source 20 and the visible light source 30 can be more easily fixed on the light incident surface of the light guide body 10, and the light leakage of the light incident surface can be prevented, so that the light incident surface is conveniently sealed.
Specifically, the ultraviolet linear light source further comprises a shielding structure, and the shielding structure is arranged on the columnar surface, so that the part, which is not shielded by the shielding structure, on the columnar surface is used as a light-emitting surface. Because the short wave ultraviolet light has great harm to human bodies, the light emitted from the light emitting surface can be ensured to be emitted outwards along a specific angle through the arrangement, and the ultraviolet light emitted from the light emitting surface is prevented from hurting operators. In addition, due to the arrangement, the light emitted from the light emitting surface can be controlled, and the ultraviolet linear light source can be conveniently operated.
As shown in fig. 3, the ultraviolet linear light source further includes a reflective plate 40, and the reflective plate 40 is disposed at one side of the light guide 10 and faces the light emitting surface. Through the arrangement, the reflection plate 40 can reflect light emitted to other positions instead of the effective position, so that the light emitted from the light emitting surface is more concentrated, and the working performance of the ultraviolet linear light source can be further effectively ensured.
Specifically, the length of the reflection plate 40 coincides with the length of the light guide 10. By such an arrangement, it is ensured that all light emitted to other positions along the longitudinal direction of the light guide 10 is reflected by the reflection plate 40 on the light exit surface, and light emitted from the inside of the light guide 10 to other positions outside is effectively prevented.
Alternatively, the reflection plate 40 is a metal plate. Since the surface of the metal plate is smoother, the metal plate is selected as the reflection plate 40 to effectively enhance the reflection effect of the reflection plate 40. Compared with other materials, the metal plate has no obvious absorption characteristic to light in other wave bands, has smaller loss to short-wave ultraviolet light, and can effectively increase the output quantity of the short-wave ultraviolet light.
Also, the metal plate may be made of any metal material. Preferably, it may be silver, copper, or the like. Of course, an alloy material composed of several metals is also possible.
As shown in fig. 1 to 3, the ultraviolet linear light source further includes a plurality of supporting substrates 50, and at least one supporting substrate 50 is disposed at each of two ends of the light guide 10. By such arrangement, the ultraviolet light source 20 and the visible light source 30 can be respectively fixed on the carrier substrate 50, so that the ultraviolet light source 20 and the visible light source 30 can be effectively fixed, and the sealing performance of the light guide 10 is further effectively ensured.
Optionally, the uv light source 20 and the visible light source 30 are connected to the carrier substrate 50 by soldering.
Alternatively, the ultraviolet light source 20 and the visible light source 30 are connected to the carrier substrate 50 by means of bonding.
Through setting up like this, can also make the installation of ultraviolet ray linear light source more nimble, make the ultraviolet ray linear light source can install on ultraviolet ray scanning equipment through the part that bearing substrate 50 outwards stretches out.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
1. the number of ultraviolet LEDs used in the ultraviolet light source 20 is reduced;
2. the heat productivity of the ultraviolet linear light source is reduced;
3. simple structure and can realize miniaturization.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An ultraviolet linear light source, comprising:
the light guide body (10) is of a columnar structure, light incident surfaces are arranged at two ends of the light guide body (10), and the columnar surface of the light guide body (10) is a light emergent surface;
ultraviolet light source (20) and visible light source (30), ultraviolet light source (20) with visible light source (30) set up respectively the both ends of light guide body (10) go into plain noodles department, just ultraviolet light source (20) can send the ultraviolet light of shortwave at least, just light guide body (10) are right the luminousness of the ultraviolet light of shortwave reaches more than 50%.
2. The uv linear light source according to claim 1, wherein the light guide (10) is at least one of optical quartz glass, soda-lime-silica short-wave uv glass, and soda-lime-uv glass.
3. The uv linear light source according to claim 1, characterized in that the light guide (10) is uv transparent black glass.
4. The uv linear light source according to claim 1, wherein the light guide (10) is at least one of cylindrical, polygonal cylindrical, and elliptical cylindrical.
5. The uv linear light source of claim 1, wherein the light incident surface is at least one of circular, elliptical, and polygonal.
6. The UV linear light source of claim 1, further comprising a shielding structure disposed on the cylindrical surface, such that a portion of the cylindrical surface that is not shielded by the shielding structure serves as the light emitting surface.
7. The uv linear light source according to claim 1, further comprising a reflective plate (40), wherein the reflective plate (40) is disposed at one side of the light guide (10) and is disposed toward the light exit surface.
8. The uv linear light source according to claim 7, characterized in that the length of the reflector plate (40) coincides with the length of the light guide (10).
9. The uv linear light source according to claim 7, characterized in that the reflector plate (40) is a metal plate.
10. The uv linear light source according to any one of claims 1 to 9, further comprising a plurality of carrier substrates (50), wherein at least one of the carrier substrates (50) is disposed at each of both ends of the light guide (10).
11. The UV linear light source of claim 10,
the ultraviolet light source (20) and the visible light source (30) are connected with the bearing substrate (50) through welding; and/or
The ultraviolet light source (20) and the visible light source (30) are connected with the bearing substrate (50) in a mounting pressure welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577939.2U CN209821922U (en) | 2019-04-25 | 2019-04-25 | Ultraviolet light linear light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577939.2U CN209821922U (en) | 2019-04-25 | 2019-04-25 | Ultraviolet light linear light source |
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| Publication Number | Publication Date |
|---|---|
| CN209821922U true CN209821922U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920577939.2U Active CN209821922U (en) | 2019-04-25 | 2019-04-25 | Ultraviolet light linear light source |
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| Country | Link |
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| CN (1) | CN209821922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570773A (en) * | 2021-07-09 | 2021-10-29 | 敦南科技（无锡）有限公司 | Multi-light source image sensor |
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2019
- 2019-04-25 CN CN201920577939.2U patent/CN209821922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570773A (en) * | 2021-07-09 | 2021-10-29 | 敦南科技（无锡）有限公司 | Multi-light source image sensor |
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