CN109737330A - A kind of the Adjustable horizontal plate illumination system and its light-dimming method of single-sided illumination - Google Patents
A kind of the Adjustable horizontal plate illumination system and its light-dimming method of single-sided illumination Download PDFInfo
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- CN109737330A CN109737330A CN201910121198.1A CN201910121198A CN109737330A CN 109737330 A CN109737330 A CN 109737330A CN 201910121198 A CN201910121198 A CN 201910121198A CN 109737330 A CN109737330 A CN 109737330A
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Abstract
System of the present invention provides the Adjustable horizontal plate illumination system and its light-dimming method of a kind of single-sided illumination, including light guide plate, the bottom surface of light guide plate is equipped with light directing site layer, the top surface of light guide plate, which is equipped with, absorbs photochromic layer, one side end face of light guide plate is externally provided with incident light source, and incident light source includes visible light source and UV light source；Visible light source is lighted, light directing site layer adjusts radiation of visible light to absorption photochromic layer；UV light source is closed, the light transmittance for absorbing photochromic layer is P, it is seen that light can pass through without blockage absorption photochromic layer；UV light source is lighted, light directing site layer adjusts UV illumination and is mapped to absorption photochromic layer, absorbs light transmittance after photochromic layer absorbs UV light and deteriorates to less than P, extinction photochromic layer stop portions visible light passes through.In the case where UV light irradiation absorption photochromic layer, the light transmittance for absorbing photochromic layer will decline the present invention, be capable of forming the dimming effect of gradual change；Absorption photochromic layer can be restored to original sufficiently large light transmittance after losing UV light.
Description
Technical field
The present invention relates to lighting system, Adjustable horizontal plate illumination system and its light modulation of a kind of single-sided illumination are specifically disclosed
Method.
Background technique
A kind of electro-optic conversion system when lighting system, and plate lighting system refers to the lighting system of panel-shaped, is mostly used
In the places such as bedroom lamp, office etc., automobile atmosphere lamp.Plate lighting system shines uniform face designed for providing
Light source possesses bigger irradiated area and radiancy more evenly, thus flat illumination system relative to the point light source of ball bulb
It is becoming increasingly popular.
The fields such as automobile atmosphere lamp, advertising lamp often need to use adjustable plate lighting system, existing adjustable plate
Lighting system generally uses two-way or multichannel light source, light source is installed in the opposite end of light guide plate, by adjusting two-way light source
Electric current control light intensity, to adjust the Luminance Distribution of light guide plate surface.But the limit in some special occasions, by structure
System, light source can be only installed at one end of light guide plate, cannot achieve dynamic using Adjustable horizontal plate illumination system in the prior art
Adjust the function of light guide plate surface brightness.
Summary of the invention
Based on this, it is necessary to be directed to prior art problem, provide a kind of single-sided illumination Adjustable horizontal plate illumination system and
Its light-dimming method can be realized the brightness adjustable function of single-sided illumination.
To solve prior art problem, the present invention discloses a kind of Adjustable horizontal plate illumination system of single-sided illumination, including leads
Tabula rasa, the bottom surface of light guide plate are equipped with light directing site layer, and the top surface of light guide plate, which is equipped with, absorbs photochromic layer, outside a side end face of light guide plate
Equipped with incident light source, incident light source includes visible light source and UV light source.
Further, absorbing photochromic layer is UV sensitization discoloration material layer.
Further, absorbing photochromic layer is silver halide photochromic layer.
Further, absorbing photochromic layer is network point distribution structure.
Further, light directing site layer is equipped with reflecting layer far from the side of light guide plate.
Further, UV light source is UV-LED, it is seen that light source is visible LED.
Invention additionally discloses a kind of light-dimming methods of the Adjustable horizontal plate illumination system of single-sided illumination, using any of the above-described list
Side enters the Adjustable horizontal plate illumination system of light, comprising the following steps:
A, visible light source is lighted, it is seen that the visible light that light source issues injects light guide plate, and light directing site layer adjusts radiation of visible light and arrives
Absorb photochromic layer；
B, UV light source is closed, the light transmittance for absorbing photochromic layer is P, absorbs photochromic layer and is close to transparent state, it is seen that light can
Absorption photochromic layer is passed through without blockage, the visible light brightness uniformity of photochromic layer is absorbed；
C, UV light source is lighted, the UV light emission that UV light source issues enters light guide plate, and light directing site layer adjusts UV illumination and is mapped to absorption discoloration
Layer absorbs light transmittance after photochromic layer absorbs UV light and deteriorates to less than P, absorbs the light transmittance of photochromic layer from close to the one of incident light source
Side starts to be gradually increased to the side far from incident light source, and extinction photochromic layer stop portions visible light passes through, and absorbs in photochromic layer
Visible brightness close to incident light source side is less than the visible brightness far from incident light source side；
D, after carrying out step A, B, step C are carried out according to demand, to obtain dimming effect.
The invention has the benefit that the present invention discloses Adjustable horizontal plate illumination system and its light modulation of a kind of single-sided illumination
Method, setting can adjust the absorption photochromic layer of visible-light absorptivity, in the case where UV light irradiation absorption photochromic layer, absorb and become
The light transmittance of chromatograph will decline, so that stop portions visible light passes through, and absorb the light transmittance of photochromic layer along UV light irradiation side
To being gradually increased, it is capable of forming the dimming effect of gradual change；Lose absorb after UV light photochromic layer can be restored to it is original sufficiently large
Light transmittance, it is seen that light can pass through unobstructedly；One end of light guide plate need to be only arranged in light source, just can be realized visible
The luminance dynamic adjustable function of light.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
Fig. 2 is side structure schematic view of the invention.
When Fig. 3 is that the present invention closes UV light source, the visible light light intensity -Y direction position curve schematic diagram of photochromic layer is absorbed.
When Fig. 4 is that the present invention lights UV light source, Y-direction position-visible-light absorptivity curve synoptic diagram of photochromic layer is absorbed.
When Fig. 5 is that the present invention lights UV light source, the visible light light intensity contour schematic diagram of discoloration layer surface is absorbed.
When Fig. 6 is that the present invention lights UV light source, the curve synoptic diagram of the visible light light intensity -Y direction position of photochromic layer is absorbed.
Appended drawing reference are as follows: light guide plate 10, light directing site layer 11, absorb photochromic layer 12, reflecting layer 13, incident light source 20, can
Light-exposed source 21, UV light source 22.
Specific embodiment
To further understand the features of the present invention, technological means and specific purposes achieved, function, below with reference to
Present invention is further described in detail with specific embodiment for attached drawing.
Referring to figs. 1 to Fig. 6.
The embodiment of the present invention discloses a kind of Adjustable horizontal plate illumination system of single-sided illumination, as shown in Figure 1, 2, including leaded light
Plate 10, the bottom surface of light guide plate 10 are equipped with light directing site layer 11, it is preferable that the light directing site density of light directing site layer 11 is from close to entering
The side for penetrating light source 20 starts to be gradually increased to the side far from incident light source 20, the light directing site far from 20 side of incident light source
Density is greater than the light directing site density close to 20 side of incident light source, and the top surface of light guide plate 10, which is equipped with, absorbs photochromic layer 12, guide-lighting
One side end face of plate 10 is externally provided with incident light source 20, and incident light source 20 includes visible light source 21 and UV light source 22, it is seen that light source 21
It issues visible light and illuminating effect is provided, UV light source 22 issues UV light and adjusts the light transmittance for absorbing photochromic layer 12, in visible light source 21
In the case where work, the working condition for adjusting UV light source 22 can adjust the illumination effect of Integral flat-plate lighting system.
The absorption photochromic layer 12 that can adjust visible-light absorptivity is arranged in the present invention, in UV light irradiation absorption photochromic layer 12
In the case of, the light transmittance for absorbing photochromic layer 12 will decline, so that stop portions visible light passes through, and absorb the saturating of photochromic layer 12
Light rate is gradually increased along UV light direction of illumination, is capable of forming the dimming effect of gradual change；Absorption photochromic layer 12 can after losing UV light
It is restored to original sufficiently large light transmittance, it is seen that light can pass through unobstructedly；Light guide plate 10 need to be only arranged in light source
One end, just can be realized the luminance dynamic adjustable function of visible light.
In the present embodiment, absorbing photochromic layer 12 is UV sensitization discoloration material layer, and UV sensitization discoloration material is absorbing UV light
Afterwards, the variation that can generate color is restored to original color after losing the irradiation of UV light.
Based on the above embodiment, absorbing photochromic layer 12 is silver halide photochromic layer, and the small silver halide of thickness is under normal circumstances
Close to clear, colorless, after the irradiation of UV light, silver halide will be decomposed into the silver-colored microparticle of many black, stops light to pass through, will lead
The light transmittance for absorbing photochromic layer 12 is caused to reduce, after losing the irradiation of UV light, silver and halogen will regroup, silver halide is generated, from
And the light transmittance for ensuring to absorb photochromic layer 12 restores normal, light, which can pass through, absorbs photochromic layer 12.
In the present embodiment, absorbing photochromic layer 12 is network point distribution structure, and the network point distribution structure for absorbing photochromic layer 12 is
It being made of several discoloration sites, there is gap between the site that changes colour, there is uncovered place in the top surface for capableing of light guide plate 10,
When regulating and controlling light intensity, the light transmittance for absorbing photochromic layer 12 in time is substantially reduced, and also can effectively ensure that some light can not
It is blocked smooth outgoing, so that it is guaranteed that the brightness of integral illumination system will not be too low.
In the present embodiment, light directing site layer 11 is equipped with reflecting layer 13 far from the side of light guide plate 10, and reflecting layer 13 can
The light leaked out from light directing site layer 11 is effectively collected, and these light are reflected into the absorption photochromic layer 12, Neng Gouyou at top
Effect improves the utilization rate of luminous energy.
In the present embodiment, UV light source 22 is UV-LED, it is seen that light source 21 is visible LED, LED luminous optical property
It is good, and low energy consumption.
A kind of light-dimming method of the Adjustable horizontal plate illumination system of single-sided illumination is also disclosed in the embodiment of the present invention, and use is above-mentioned
The Adjustable horizontal plate illumination system of the single-sided illumination of any embodiment, comprising the following steps:
A, visible light source 21 is lighted, it is seen that the visible light that light source 21 issues injects light guide plate 10, and light directing site layer 11 adjusts visible
Illumination, which is mapped to, absorbs photochromic layer 12；
B, UV light source 22 is closed, the light transmittance for absorbing photochromic layer 12 is P, and absorbing photochromic layer 12 is close to transparent state, it is seen that
Light, which can pass through without blockage, absorbs photochromic layer 12, the visible light brightness uniformity of photochromic layer 12 is absorbed, along incident light source 20
Light incident direction is Y-direction, and the negative value region of Y-direction is close to the position of incident light source 20, and the positive region of Y-direction is
Position far from incident light source 20, the visible light light intensity -Y direction position curve for absorbing photochromic layer 12 are as shown in Figure 3；
C, UV light source 22 is lighted, the UV light emission that UV light source 22 issues enters light guide plate 10, and light directing site layer 11 adjusts UV illumination and is mapped to
Photochromic layer 12 is absorbed, light transmittance after photochromic layer 12 absorbs UV light is absorbed and deteriorates to less than P, absorbs the light transmittance of photochromic layer 12 from leaning on
The side of nearly incident light source 20 starts to be gradually increased to the side far from incident light source 20, absorbs the Y-direction position-of photochromic layer 12
Visible-light absorptivity curve is as shown in figure 4, the absorption photochromic layer 12 close to 20 side of incident light source absorbs a large amount of UV light guide cause
Light transmittance is lower, and the absorption photochromic layer 12 far from 20 side of incident light source absorbs a small amount of UV light, and light transmittance relative drop is unknown
Aobvious, extinction photochromic layer stop portions visible light passes through, and absorbs the visible brightness in photochromic layer 12 close to 20 side of incident light source
Less than the visible brightness far from 20 side of incident light source, the visible light light intensity contour schematic diagram on 12 surface of photochromic layer is absorbed such as
Shown in Fig. 5, the visible light light intensity -Y direction position curve for absorbing photochromic layer 12 is as shown in Figure 6；
D, after carrying out step A, B, step C are carried out according to demand, to obtain dimming effect.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (7)
1. a kind of Adjustable horizontal plate illumination system of single-sided illumination, which is characterized in that including light guide plate (10), the light guide plate
(10) bottom surface is equipped with light directing site layer (11), and the top surface of the light guide plate (10), which is equipped with, absorbs photochromic layer (12), the leaded light
One side end face of plate (10) is externally provided with incident light source (20), and the incident light source (20) includes visible light source (21) and UV light source
(22)。
2. a kind of Adjustable horizontal plate illumination system of single-sided illumination according to claim 1, which is characterized in that the absorption
Photochromic layer (12) is UV sensitization discoloration material layer.
3. a kind of Adjustable horizontal plate illumination system of single-sided illumination according to claim 2, which is characterized in that the absorption
Photochromic layer (12) is silver halide photochromic layer.
4. a kind of Adjustable horizontal plate illumination system of single-sided illumination according to claim 1, which is characterized in that the absorption
Photochromic layer (12) is network point distribution structure.
5. a kind of Adjustable horizontal plate illumination system of single-sided illumination according to claim 1, which is characterized in that the leaded light
Site layer (11) is equipped with reflecting layer (13) far from the side of the light guide plate (10).
6. a kind of Adjustable horizontal plate illumination system of single-sided illumination according to claim 1, which is characterized in that the UV light
Source (22) is UV-LED, and the visible light source (21) is visible LED.
7. a kind of light-dimming method of the Adjustable horizontal plate illumination system of single-sided illumination, any described using the claims 1-6
Single-sided illumination Adjustable horizontal plate illumination system, which comprises the following steps:
A, it lights visible light source (21), the visible light that the visible light source (21) issues injects light guide plate (10), light directing site layer
(11) radiation of visible light is adjusted to absorption photochromic layer (12)；
B, UV light source (22) are closed, the light transmittance for absorbing photochromic layer (12) is P, and the absorption photochromic layer (12) is close to saturating
Bright state, it is seen that light can pass through without blockage the absorption photochromic layer (12), described to absorb the visible of photochromic layer (12)
Brightness is uniform；
C, the UV light source (22) is lighted, the UV light emission that the UV light source (22) issues enters the light guide plate (10), the leaded light
Site layer (11) adjusts UV illumination and is mapped to the absorption photochromic layer (12), and the absorption photochromic layer (12) absorbs light transmittance after UV light
P is deteriorated to less than, the light transmittance for absorbing photochromic layer (12) is since the side close to the incident light source (20) far from
The side of the incident light source (20) is gradually increased, and the extinction photochromic layer stop portions visible light passes through, the absorption discoloration
Layer (12) in close to the incident light source (20) side visible brightness be less than far from the incident light source (20) side can
Light-exposed brightness；
D, after carrying out step A, B, step C are carried out according to demand, to obtain dimming effect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121198.1A CN109737330A (en) | 2019-02-19 | 2019-02-19 | A kind of the Adjustable horizontal plate illumination system and its light-dimming method of single-sided illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121198.1A CN109737330A (en) | 2019-02-19 | 2019-02-19 | A kind of the Adjustable horizontal plate illumination system and its light-dimming method of single-sided illumination |
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| CN109737330A true CN109737330A (en) | 2019-05-10 |
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| CN201910121198.1A Pending CN109737330A (en) | 2019-02-19 | 2019-02-19 | A kind of the Adjustable horizontal plate illumination system and its light-dimming method of single-sided illumination |
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| CN102112803A (en) * | 2008-08-07 | 2011-06-29 | 皇家飞利浦电子股份有限公司 | Lighting device with dynamic light effects |
| JP2015022093A (en) * | 2013-07-18 | 2015-02-02 | スタンレー電気株式会社 | Display plate |
| US20150285468A1 (en) * | 2012-12-05 | 2015-10-08 | Masahiro Ueda | Luminance adjustment film and illuminating device including a photoisomerizable compound |
| US20160010827A1 (en) * | 2013-03-19 | 2016-01-14 | National University Corporation Hamamatsu University School Of Medicine | Luminous apparatus |
| WO2018078770A1 (en) * | 2016-10-27 | 2018-05-03 | 伊藤光学工業株式会社 | Photochromic member and method of manufacture therefor |
| CN209511729U (en) * | 2019-02-19 | 2019-10-18 | 广东烨嘉光电科技股份有限公司 | A kind of Adjustable horizontal plate illumination system of single-sided illumination |
-
2019
- 2019-02-19 CN CN201910121198.1A patent/CN109737330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102112803A (en) * | 2008-08-07 | 2011-06-29 | 皇家飞利浦电子股份有限公司 | Lighting device with dynamic light effects |
| US20150285468A1 (en) * | 2012-12-05 | 2015-10-08 | Masahiro Ueda | Luminance adjustment film and illuminating device including a photoisomerizable compound |
| US20160010827A1 (en) * | 2013-03-19 | 2016-01-14 | National University Corporation Hamamatsu University School Of Medicine | Luminous apparatus |
| JP2015022093A (en) * | 2013-07-18 | 2015-02-02 | スタンレー電気株式会社 | Display plate |
| WO2018078770A1 (en) * | 2016-10-27 | 2018-05-03 | 伊藤光学工業株式会社 | Photochromic member and method of manufacture therefor |
| CN209511729U (en) * | 2019-02-19 | 2019-10-18 | 广东烨嘉光电科技股份有限公司 | A kind of Adjustable horizontal plate illumination system of single-sided illumination |
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