CN2519557Y - Linear lighting illuminating source - Google Patents
Linear lighting illuminating source Download PDFInfo
- Publication number
- CN2519557Y CN2519557Y CN 02212057 CN02212057U CN2519557Y CN 2519557 Y CN2519557 Y CN 2519557Y CN 02212057 CN02212057 CN 02212057 CN 02212057 U CN02212057 U CN 02212057U CN 2519557 Y CN2519557 Y CN 2519557Y
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- China
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- light
- luminous element
- light conductor
- guide body
- electrode
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Abstract
The utility model relates to a linear illumination light source which solves the problem of greatly reducing the size of image reading devices, and has a stick shape transparent light guiding body, a light guiding body external shell, an illuminant at one end of the light guiding body external shell, and an illuminating part and electrodes on the illuminant, characterized in that the stick shape transparent light guiding body is polygonal, and the surface of one angle is light sending surface. A light scattering image is in the area where the surface opposite to the light sending surface and the normal line of the light sending surface meet, and the shape of the light scattering image gradually increases acreage from one end near the illuminant to the other end. The cross-section of the stick shape transparent light guiding body is longitudinal, and the size parallel to the electrodes is longer than the size vertical to the electrodes. The utility model can be widely applied to image reading devices.
Description
Technical field: the utility model relates to the light source that uses in a kind of image read-out, is a kind of linear lighting light source specifically.
Background technology: Fig. 6 is the sectional drawing of Japanese kokai publication hei 10-126581 number disclosed existing linear lighting light source and image read-out.101 is light conductors among the figure, the 201st, hold the light conductor shell of light conductor 101, the 3rd, lens, the 4th, the photographic department (photo-sensitive light electric transducer) of receiver lens 3 light that converges, the 5th, carry the sensor base plate of photo-sensitive light electric transducer, the 6th, glass plate, the 7th, hold the framework of light conductor 101, light conductor shell 201, lens 3, sensor base plate 4, glass plate 6, the 8th, electronic unit, the 9th, original copy.
In above-mentioned image read-out, the light that light conductor 101 penetrates, see through glass plate 6, be radiated on the original copy 9, the black region light of literal is absorbed on the original copy 9, and in other white undercolor region of original copy, light almost 100% is reflected, these reverberation pass glass plate 6 again, collected by lens 3, shine the photosensitive area of the sensitization photoelectric sensor 4 on the sensor base plate 5, sensitization photoelectric sensor 4 is that many photosensitive areas and the light that can will shine each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed.Light signal is transformed into the signal of telecommunication after shining on the sensitization photoelectric sensor 4, thereby realizes that image reads.
In above-mentioned image read-out, the linear lighting light source is made up of light conductor 101, light scattering figure 10, light conductor shell 201 and luminous element (not drawing among the figure).The light that luminous element sends is mapped to light conductor inside from the end of light conductor, and propagates in the longitudinal direction, and light is subjected to the scattering of light scattering figure in communication process, luminous energy is outwards exported from light emergence face, thereby shone on the original copy.
But the linear lighting light source in the above-mentioned image read-out, because light conductor 101 size W in the horizontal direction is greater than its size H in vertical direction, therefore, the shared volume ratio of linear lighting light source is bigger in the horizontal direction.Because have this problem, the volume of image read-out is also bigger, make the miniaturization of image read-out become difficult.If merely reduce the size W on the horizontal direction, the luminous efficiency of light source is reduced, and the consistency of output light intensity can worsen on length direction.
Summary of the invention: technical problem to be solved in the utility model to provide exactly a kind of take up room little, the linear lighting light source that the volume of its image read-out is reduced greatly.
The utility model is provided with bar-shaped transparent light guide body, the light conductor shell, one end of light conductor shell is provided with luminous element, luminous element is provided with illuminating part and electrode, bar-shaped transparent light guide body section is a polygon, face on one of them angle is a light emergence face, be provided with the light scattering figure at the face relative and with zone that the normal of light emergence face intersects with this light emergence face, the shape of this figure is by increasing gradually from an end close with luminous element to an other end area, the section configuration of bar-shaped transparent light guide body is a longitudinal type, with the electrode parallel direction on size greater than with the electrode vertical direction on size.
A wide side that is parallel to electrode in the length direction upper edge of light conductor shell is provided with and is used for the peristome that bar-shaped transparent light guide body embeds the light conductor shell, be provided with light-conductive hole at light conductor outer casing end, be provided with the illuminating part of luminous element in the light-conductive hole near luminous element.
The utility model has adopted section to be shaped as the transparent light guide body of longitudinal type, promptly with the electrode parallel direction on size (H) greater than with the electrode vertical direction on the transparent light guide body of size (W).And the light conductor shell is parallel to electrode in the length direction upper edge a wide side is made as peristome, light conductor directly can be embedded into the shell from the lateral opening portion of light conductor shell.Be provided with light-conductive hole in the end of the close luminous element of light conductor shell in addition, the illuminating part of luminous element can be directly embedded in the light-conductive hole of light conductor outer casing end, and can be directly in the light-conductive hole of light conductor outer casing end the illuminating part to above-mentioned luminous element encapsulate, thereby the linear lighting light source is become the longitudinal type structure by lateral type.
Description of drawings:
Fig. 1 is for using image read-out sectional schematic diagram of the present utility model.
Fig. 2 is the outside drawing of embodiment 1 of the present utility model.
Fig. 3 is the section amplification figure of the utility model linear lighting light source one end and illuminating part.
Fig. 4 is the package assembly schematic diagram of the utility model linear lighting light source.
Fig. 5 is the outside drawing of embodiment 2 of the present utility model.
Fig. 6 is the sectional drawing of existing normal image reading device.
Embodiment
Embodiment 1:
Fig. 2 is the oblique diagrammatic sketch of an embodiment of bar-shaped lighting source of the present utility model.1 is the transparent light guide body among the figure, the 2nd, take in the light conductor shell of transparent light guide body 1, and the 12nd, luminous element.On transparent light guide body 1, be printed with the light scattering figure that whitewash forms, and the end face of close luminous element one end is a minute surface.The illuminating part (light-emitting diode) that electrode and assembling are arranged on luminous element 12.
The section configuration of above-mentioned transparent light guide body 1 is a longitudinal type, promptly with the electrode parallel direction on size (H) greater than with the electrode vertical direction on size (W).A light injection part is arranged on the light conductor 1 in addition, and this injection part is processed into miter angle.On the relative surface that is of a size of H with injection part surface, the light scattering figure of printing, this scatter graph is less at the end area near illuminating part, and increases gradually to the other end.
Above-mentioned light conductor shell 2 is parallel to electrode in the length direction upper edge a wide side is made as peristome.The height of peristome is slightly larger than H, and the degree of depth of peristome is W.The size of peristome is as the criterion can just hold light conductor 1.
Fig. 3 is the section amplification figure of the utility model linear lighting light source one end and illuminating part.In addition, above-mentioned transparent light guide body case 2 is provided with luminous element fixed part 2A and light-conductive hole 2B in the fixing end of luminous element.The shape of light-conductive hole 2B and the section structure of light conductor are same or similar, and its size is more smaller than the cross dimensions of light conductor.The effect of this light-conductive hole be the photoconduction that illuminating part sent with luminous element to the end of light conductor, incide light conductor inside then.
Above-mentioned luminous element 12 is made up of light-emitting substrate 12A, illuminating part 12B, electrode 12C and packaging plastic 12D.Illuminating part 12B protrudes from the surface of light-emitting substrate 12A, and illuminating part 12B is positioned within the light-conductive hole 2B during assembling, and within light-conductive hole illuminating part 12B is encapsulated.
Fig. 4 is the decomposition assembling figure of above-mentioned bar-shaped lighting source.One end of at first that luminous element 12 is fixing and light conductor shell 2 injects packaging plastic 12D in light-conductive hole, the height of packaging plastic should not surpass the surface of light-conductive hole near the light conductor end.Then the lateral opening portion of light conductor 1 from the light conductor shell is embedded into the light conductor shell.
Embodiment 2:
Fig. 5 is the oblique diagrammatic sketch of the embodiment of two ends bar-shaped lighting source that luminous element is set.In order to make the stronger light quantity of linear lighting light source output, at the two ends of light conductor and light conductor shell luminous element is set, can make the light quantity of output of linear lighting light source stronger, so that be applicable to different output requirements.
In addition, owing to be provided with luminous element at two ends, the luminous element setting of an end can be sent the light of RGB 3 looks, other end luminous element is set to send other different glow colors such as infrared light or ultraviolet light.Make the linear lighting light source can export the light of more colors.
Embodiment 3:
Fig. 1 is to use the sectional drawing of an embodiment of image read-out of the present utility model.In Fig. 1, the 1st, light conductor, the 2nd, hold the light conductor shell of light conductor 1, the 3rd, lens, the 4th, the photographic department (photo-sensitive light electric transducer) of receiver lens 3 light that converges, the 5th, carry the sensor base plate of photo-sensitive light electric transducer, the 6th, glass plate, the 7th, hold the framework of light conductor 1, light conductor shell 2, lens 3, sensor base plate 4, glass plate 6, the 8th, electronic unit, the 9th, original copy, the 10th, light scattering figure, the 11st, reflecting piece.
In above-mentioned image read-out, the light that light conductor 1 penetrates, see through glass plate 6, be radiated on the original copy 9, the black region light of literal is absorbed on the original copy 9, and in other white undercolor region of original copy, light almost 100% is reflected, these reverberation pass glass plate 6 again, collected by lens 3, shining the photosensitive area of the sensitization photoelectric sensor 4 on the sensor base plate 5. sensitization photoelectric sensor 4 is that many photosensitive areas and the light that can will shine each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed.Light signal is transformed into the signal of telecommunication after shining on the sensitization photoelectric sensor 4, thereby realizes that image reads.
In above-mentioned image read-out, used the linear lighting source of longitudinal type, and added reflecting piece 11 between light conductor surface adjacent and the lens with lens.The effect of reflecting piece 11 is: the light that will shoot out from this surface of light conductor returns light conductor inside through reflection, to reduce the loss of light quantity.Make by the white resin of good reflection effect or white plastic or aluminium flake or stainless steel substrates in order light is had for the material of reflecting piece 11.
Claims (2)
1, a kind of linear lighting light source, it is provided with bar-shaped transparent light guide body, the light conductor shell, one end of light conductor shell is provided with luminous element, luminous element is provided with illuminating part and electrode, it is characterized in that bar-shaped transparent light guide body section is a polygon, face on one of them angle is a light emergence face, be provided with the light scattering figure at the face relative and with zone that the normal of light emergence face intersects with this light emergence face, the shape of this figure is by increasing gradually from an end close with luminous element to an other end area, the section configuration of bar-shaped transparent light guide body is a longitudinal type, with the electrode parallel direction on size greater than with the electrode vertical direction on size.
2, linear lighting light source according to claim 1, it is characterized in that a wide side that is parallel to electrode in the length direction upper edge of light conductor shell is provided with the peristome that is used for bar-shaped transparent light guide body embedding light conductor shell, be provided with light-conductive hole at light conductor outer casing end, be provided with the illuminating part of luminous element in the light-conductive hole near luminous element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212057 CN2519557Y (en) | 2002-01-09 | 2002-01-09 | Linear lighting illuminating source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212057 CN2519557Y (en) | 2002-01-09 | 2002-01-09 | Linear lighting illuminating source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519557Y true CN2519557Y (en) | 2002-10-30 |
Family
ID=33691799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02212057 Expired - Fee Related CN2519557Y (en) | 2002-01-09 | 2002-01-09 | Linear lighting illuminating source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658728A (en) * | 2012-05-11 | 2012-09-12 | 山东华菱电子有限公司 | Printing control device carrying heat-sensitive printing head and printing control method |
-
2002
- 2002-01-09 CN CN 02212057 patent/CN2519557Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658728A (en) * | 2012-05-11 | 2012-09-12 | 山东华菱电子有限公司 | Printing control device carrying heat-sensitive printing head and printing control method |
| CN102658728B (en) * | 2012-05-11 | 2016-03-16 | 山东华菱电子股份有限公司 | Carry printing control method and the device of thermal printing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20021030 Termination date: 20110109 |