CN109917505A - Grating light source - Google Patents
Grating light source Download PDFInfo
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- CN109917505A CN109917505A CN201910345795.2A CN201910345795A CN109917505A CN 109917505 A CN109917505 A CN 109917505A CN 201910345795 A CN201910345795 A CN 201910345795A CN 109917505 A CN109917505 A CN 109917505A
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Abstract
The invention relates to a grating light source, which comprises a substrate layer and a first grating electrode arranged on the substrate layer, wherein a second grating electrode is arranged above the first grating electrode, and a light-emitting block is arranged between the first grating electrode and the second grating electrode; the grating light source utilizes the electrodes as gratings, and simultaneously, the light source is arranged between the gratings, the gratings and the light source are combined together, and a plurality of light sources with different frequencies can be arranged, and the width of the gratings is adjusted to be gaps with different widths, so that different light wave superposition effects are realized; in addition, a heat-sensitive adjusting layer can be arranged between the light-emitting block and the vertical grating part, and the heat-sensitive adjusting layer absorbs light emitted by the light-emitting block to achieve different expansions so as to adjust the distance between the vertical grating parts, so that the vertical grating parts have different interference effects on light, and different light imaging effects are achieved.
Description
Technical field
The invention belongs to optical texture technical fields, and in particular to a kind of grating light source.
Background technique
Optics (optics) is the important branch subject of physics.It is also subject relevant to optical engineering technology.Narrow sense
For, optics is the science about light and depending on seeing, optics word early stage is served only for eyes and depending on seeing the things being associated.Now
Its optics often said is broad sense, is studied from microwave, infrared ray, visible light, ultraviolet light until X-ray and gamma-ray broadness
Generation, propagation, reception and the display of electromagnetic radiation in wavelength band, and the science with matter interaction, are studied emphatically
Range be from infrared to ultraviolet band.It is an important component of physics.
Grating is that the optical device being made of a large amount of wide equidistant parallel slits is known as grating (grating).Generally
Common grating is made of to carve a large amount of parallel scores on the glass sheet, and indentation is lightproof part, smooth between two indentations
Part can be equivalent to a slit with light transmission.The grating of purification is carved with thousands of or even up to ten thousand indentations in 1cm width.It is this
Grating using transmission optical diffraction is known as transmission grating, and there are also the gratings using the reflection optical diffraction between two indentations, is such as being coated with
Many parallel scores are carved on the surface of metal layer, the smooth metal face between two indentations can be with reflected light, and this grating is referred to as anti-
Penetrate grating.
The position for the spectrum line that grating generates on the screen can use formulaIt indicates.In formula
A represents slit width, and b represents slit spacing,For the angle of diffraction, θ is the folder between the incident direction and grating planar normal of light
Angle, k are bright fringe spectrum progression (k=0, ± 1, ± 2 ...), and λ is wavelength, and a+b is referred to as grating constant.It can be calculated with this formula
Optical wavelength.The characteristics of striped that grating generates is: bright fringe is very bright very narrow, and the dark space between adjacent bright line is very wide, diffraction pattern
It is very clear.Thus wavelength can be accurately measured using optical grating diffraction.The resolving power R=l/Dl=kN of diffraction grating.Its
Middle N is slit number, and the more bright fringes of slit number are brighter, thinner, and grating distinguishing ability is higher.Increase seam number N and improves resolution originally
Neck is the important topic in grating technology.Grating is widely applied very much having depending on square face, in the prior art, usually by light
Source is used separately with grating.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide the grating light sources that a kind of grating and light source are combined as a whole.
For this purpose, the present invention provides a kind of grating light source, including substrate layer, the first grating electricity being set on substrate layer
Pole, is provided with the second grating electrode above first grating electrode, and the first grating electrode and the second grating electrode it
Between be provided with light-emitting block.
First grating electrode or the second grating electrode include transverse bottom, vertical grating portion, the vertical grating
Portion is set in transverse bottom in the period.
The vertical grating portion period is 500nm~800nm.
The vertical grating portion is at least provided with 2.
It is symmetrical arranged centered on first grating electrode and the second grating electrode.
The light-emitting block be set to the first grating electrode vertical grating portion and the second grating electrode vertical grating portion it
Between.
Temperature-sensitive regulating course is additionally provided between the light-emitting block and the vertical grating portion of contact.
The temperature-sensitive regulating course is polymethyl methacrylate.
The light-emitting block is LD light source.
Beneficial effects of the present invention: this grating light source provided by the invention, using electrode as grating, while in grating
Between light source is set, grating and light source are combined togather, and the light source of multiple and different frequencies can be set, adjust grating
Width be different in width gap, to realize different light wave Overlays；Furthermore it is possible in light-emitting block and vertical grating
Temperature-sensitive regulating course is set between portion, by the absorption for the light that temperature-sensitive regulating course issues light-emitting block, reach different expansion thus
Adjust vertical grating portion the distance between so that vertical grating portion has different interference effects to light, to reach different
Light imaging effect.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is grating light source cutaway side view schematic diagram.
Fig. 2 is the vertical view screenshot schematic diagram that the vertical grating portion of grating light source is 2.
Fig. 3 is that the vertical grating portion of grating light source is multiple vertical view screenshot schematic diagram one.
Fig. 4 is that the vertical grating portion of grating light source is multiple vertical view screenshot schematic diagram two.
Fig. 5 is the structural schematic diagram of grating electrode.
In figure: 1, substrate layer；2, the first grating electrode；3, the second grating electrode；4, light-emitting block；5, temperature-sensitive regulating course；6,
Transverse bottom；7, vertical grating portion.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality
Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
Embodiment 1
A kind of grating light source as Figure 1-Figure 5, including substrate layer 1 are present embodiments provided, is set on substrate layer 1
The first grating electrode 2, the top of first grating electrode 2 is provided with the second grating electrode 3, and the first grating electrode 2
Light-emitting block 4 is provided between the second grating electrode 3；Specifically, the light-emitting block 4 is set to the first following grating electrodes
Between 2 vertical grating portion 7 and the vertical grating portion 7 of the second grating electrode 3；First grating electrode 2 or the second grating electricity
Pole 3 includes transverse bottom 6, vertical grating portion 7, and vertical 7 period of grating portion is set in transverse bottom 6；First grating
Electrode 2 and the second grating electrode 3, one is used as positive pole, and one is used as power cathode, in this way, the first grating electrode 2, hair
Light block 4, the second grating electrode 3 are formed circuit loop, and when power supply conducting, light-emitting block 4 can issue needs
Light；Light-emitting block 4 is provided between each vertical grating portion 7, the frequency for the light that all light-emitting blocks 4 issue can be identical, can also
With difference, set according to display, moreover, the frequency of the light issued according to different light-emitting blocks 4, sets vertical grating
The spacing distance in portion 7, in this way, can achieve different optical superposition effects, this is depending on seeing that field has extraordinary effect.
Further, vertical 7 period of grating portion is 500nm~800nm, it is preferential can choose 500nm, 550nm,
600nm, 650nm, 700nm, 750nm, 800nm etc..
Further, as shown in Fig. 2, the vertical grating portion 7 is at least provided with 2；As shown in figure 3, the vertical light
Grid portion 7 is provided with 5.
Further, first grating electrode 2 is identical as the quantity in vertical grating portion 7 of the second grating electrode 3；First
Grating electrode 2 and the gap periods in the vertical grating portion 7 of the second grating electrode 3 may be the same or different, but described
It is symmetrical arranged centered on one grating electrode 2 and the second grating electrode 3.
Further, temperature-sensitive regulating course 5 is additionally provided between the light-emitting block 4 and the vertical grating portion 7 contacted；The heat
Quick regulating course 5 is polymethyl methacrylate；Polymethyl methacrylate have good translucency, and mechanical strength compared with
Height, thermal expansion character vary with temperature very significantly, therefore, in the case where absorbing heat, can be good at adjusting and shine
The distance between two vertical grating portions 7 where block 4 enable grating portion 7 vertically to realize the dynamic regulation of grating
According to the temperature of light-emitting block 4, the distance in the vertical grating portion 7 of dynamic regulation reaches different light regulating effects.
Further, the light-emitting block 4 is LD light source, and LD light source has preferable coherence, is also possible to other light
Source, can be according to actual needs using other kinds of luminescent material, such as GaAs or InGaAs etc..
In conclusion the grating light source, using electrode as grating, while being arranged light source between grating, by grating with
Light source is combined togather, and the light source of multiple and different frequencies can be set, and the width for adjusting grating is the seam of different in width
Gap, to realize different light wave Overlays；Furthermore it is possible to which setting temperature-sensitive is adjusted between light-emitting block 4 and vertical grating portion 7
Layer 5 reaches different expansion to adjust vertical grating portion 7 by the absorption for the light that temperature-sensitive regulating course 5 issues light-emitting block 4
The distance between, so that vertical 7 pairs of grating portion light has different interference effects, to reach different light imaging effects.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of grating light source, it is characterised in that: including substrate layer (1), the first grating electrode being set on substrate layer (1)
(2), it is provided with the second grating electrode (3) above first grating electrode (2), and the first grating electrode (2) and second
Light-emitting block (4) are provided between grating electrode (3).
2. a kind of grating light source as described in claim 1, it is characterised in that: first grating electrode (2) or the second grating
Electrode (3) includes transverse bottom (6), vertical grating portion (7), and vertical grating portion (7) period is set to transverse bottom (6)
On.
3. a kind of grating light source as claimed in claim 2, it is characterised in that: vertical grating portion (7) period be 500nm~
800nm。
4. a kind of grating light source as claimed in claim 2, it is characterised in that: the vertical grating portion (7) is at least provided with 2
It is a.
5. a kind of grating light source as described in claim 1, it is characterised in that: first grating electrode (2) and the second grating
It is symmetrical arranged centered on electrode (3).
6. a kind of grating light source as claimed in claim 1 or 2, it is characterised in that: the light-emitting block (4) is set to the first grating
Between the vertical grating portion (7) of electrode (2) and the vertical grating portion (7) of the second grating electrode (3).
7. a kind of grating light source as claimed in claim 6, it is characterised in that: the light-emitting block (4) and the vertical grating contacted
Temperature-sensitive regulating course (5) are additionally provided between portion (7).
8. a kind of grating light source as claimed in claim 7, it is characterised in that: the temperature-sensitive regulating course (5) is polymethyl
Sour methyl esters.
9. a kind of grating light source as described in claim 1, it is characterised in that: the light-emitting block (4) is LD light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345795.2A CN109917505A (en) | 2019-04-26 | 2019-04-26 | Grating light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345795.2A CN109917505A (en) | 2019-04-26 | 2019-04-26 | Grating light source |
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| Publication Number | Publication Date |
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| CN109917505A true CN109917505A (en) | 2019-06-21 |
Family
ID=66978627
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| CN201910345795.2A Pending CN109917505A (en) | 2019-04-26 | 2019-04-26 | Grating light source |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115747A (en) * | 1976-12-27 | 1978-09-19 | Heihachi Sato | Optical modulator using a controllable diffraction grating |
| CN1918948A (en) * | 2004-02-16 | 2007-02-21 | 独立行政法人科学技术振兴机构 | Light emitting transistor |
| CN101479779A (en) * | 2006-06-29 | 2009-07-08 | 皇家飞利浦电子股份有限公司 | Pixelated electroluminescent textile |
| CN102044844A (en) * | 2010-11-24 | 2011-05-04 | 中国科学院半导体研究所 | Distributed amplification SGDBR (sampled grating distributed Bragg reflector) tunable laser structure |
| CN103229317A (en) * | 2010-12-14 | 2013-07-31 | 国际商业机器公司 | Oxide based LED BEOL integration |
-
2019
- 2019-04-26 CN CN201910345795.2A patent/CN109917505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115747A (en) * | 1976-12-27 | 1978-09-19 | Heihachi Sato | Optical modulator using a controllable diffraction grating |
| CN1918948A (en) * | 2004-02-16 | 2007-02-21 | 独立行政法人科学技术振兴机构 | Light emitting transistor |
| CN101479779A (en) * | 2006-06-29 | 2009-07-08 | 皇家飞利浦电子股份有限公司 | Pixelated electroluminescent textile |
| CN102044844A (en) * | 2010-11-24 | 2011-05-04 | 中国科学院半导体研究所 | Distributed amplification SGDBR (sampled grating distributed Bragg reflector) tunable laser structure |
| CN103229317A (en) * | 2010-12-14 | 2013-07-31 | 国际商业机器公司 | Oxide based LED BEOL integration |
Non-Patent Citations (1)
| Title |
|---|
| 韩威 等: "1.55μmDFB LD光栅结构的优化设计", 《半导体光电》 * |
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Application publication date: 20190621 |