CN100590518C - Light source module - Google Patents
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- CN100590518C CN100590518C CN200710127393A CN200710127393A CN100590518C CN 100590518 C CN100590518 C CN 100590518C CN 200710127393 A CN200710127393 A CN 200710127393A CN 200710127393 A CN200710127393 A CN 200710127393A CN 100590518 C CN100590518 C CN 100590518C
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Abstract
The invention discloses a light source module comprising a plurality of first point light sources, a plurality of second point light sources and a plurality of third point light sources. The main light emission wavelengths of the first point light sources are in the wavelength range of a first color light, and the main light emission wavelengths of at least two first point light sources are different. In addition, the main light emission wavelengths of the second point light sources are in the wavelength range of a second color light, and the main light emission wavelengths of at least two second point light sources are different. Further, the main light emission wavelengths of the third point light sources are in the wavelength range of a third color light, and the main light emission wavelengths of at least two third point light sources are different.
Description
Technical field
The present invention relates to a kind of light source module, and particularly relevant for a kind of drill the colour system number (colorrendering index, CRI) with color stability optimized light source module.
Background technology
Fig. 1 is the synoptic diagram of known a kind of light source module.Please refer to Fig. 1, known luminaire module 100 is applicable in the projection arrangement, to provide projection arrangement required illuminating bundle.This light source module 100 comprises red light-emitting diode (red light emitting diode, red LED) 110r, green light LED 110g, blue light-emitting diode 110b, catoptron 120, two double-colored spectroscope (dichroic mirror) 130a, 130b and optical integration pillars (light integration rod) 140.In addition, red light-emitting diode 110r, green light LED 110g and blue light-emitting diode 110b can provide ruddiness 112r, green glow 112g and blue light 112b respectively.
Hold above-mentionedly, catoptron 120 can reflex to double-colored spectroscope 130b with ruddiness 112r, and double-colored spectroscope 130b is suitable for making ruddiness 112r by being passed to optical integration pillar 140.Double-colored spectroscope 130a can make green glow 112g by being passed to double-colored spectroscope 130b, and blue light 112b is reflexed to double-colored spectroscope 130b, and double-colored spectroscope 130b can reflex to optical integration pillar 140 with green glow 112g and blue light 112b.In addition, optical integration pillar 140 can be with ruddiness 112r, green glow 112g and blue light 112b homogenising.
Fig. 2 is the normalization spectrogram (normalization spectrum) of known luminaire the module ruddiness, blue light and the green glow that are provided.Please refer to Fig. 2, as seen from Figure 2, the ruddiness 112r that known luminaire module 100 is provided, green glow 112g, discontinuous in the wavelength of visible light scope with the wavelength of blue light 112r, cause ruddiness 112r, green glow 112g, with blue light 112r when blending together white light, white light drill colour system number not good (only between 50～75).
In addition, owing to the emission wavelength of light emitting diode produces the phenomenon of drift because of the temperature variation of light emitting diode or the electric current that feeds light emitting diode change easily, so can cause the color coordinate of single colored light on CIE1931 chromatic diagram (chromaticity diagram) to put inaccurate problem, cause ruddiness, green glow, with the blue light mixed light after the color instability.So, the image quality of projection arrangement will be influenced.
Summary of the invention
One embodiment of the invention proposes a kind of light source module, and it comprises a plurality of first pointolites, a plurality of second pointolite and a plurality of thirdly light source.The main emission wavelength (dominantwavelength) of first pointolite is in the wavelength coverage of first coloured light, and the main emission wavelength difference that has two first pointolites at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement.In addition, the main emission wavelength of second pointolite and has the main emission wavelength difference of two second pointolites at least in the wavelength coverage of second coloured light.In addition, thirdly the main emission wavelength of light source and has two thirdly main emission wavelength differences of light source at least in the wavelength coverage of the 3rd coloured light.
Another embodiment of the present invention proposes a kind of light source module, and it comprises a plurality of first pointolites, a plurality of second pointolite and a plurality of thirdly light source.The main emission wavelength of first pointolite is in the wavelength coverage of ruddiness, and the main emission wavelength difference that has two first pointolites at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement.The main emission wavelength of second pointolite and has the main emission wavelength difference of two second pointolites at least in the wavelength coverage of green glow.Thirdly the main emission wavelength of light source is in the wavelength coverage of blue light, and has two thirdly main emission wavelength differences of light source at least.Wherein the main emission wavelength of two first pointolites is respectively λ
11With λ
12, and 4nm≤| λ
12-λ
11|≤40nm, two the second main emission wavelengths of pointolite are respectively λ
21With λ
22, and 4nm≤| λ
22-λ
21|≤20nm, two thirdly the main emission wavelength of light source be respectively λ
31With λ
32, and 4nm≤| λ
32-λ
31|≤30nm.
Yet another embodiment of the invention proposes a kind of light source module, it comprises first group of a plurality of pointolite, the main emission wavelength of first group every bit light source is in the first monochromatic wavelength coverage, and the main emission wavelength difference that has two pointolites in first group of pointolite at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement.
In the light source module of the present invention,, drill the colour system number so can improve because of the main emission wavelength difference of pointolite that particular color is provided.
State feature and advantage on the present invention and can become apparent for allowing, preferred embodiment cited below particularly, and cooperate appended diagram, be described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of known a kind of light source module.
Fig. 2 is the normalization spectrogram of known luminaire the module ruddiness, blue light and the green glow that are provided.
Fig. 3 is the synoptic diagram of the light source module of one embodiment of the invention.
Fig. 4 A is the normalization spectrogram of each pointolite among Fig. 3.
Fig. 4 B is the synoptic diagram of light pairing color coordinate point in the CIE1931 chromatic diagram that each pointolite provided among Fig. 3.
Fig. 5 A and Fig. 5 B are respectively the synoptic diagram of light pairing color coordinate point in the CIE1931 chromatic diagram that normalization spectrogram and each pointolite of each pointolite in another embodiment of the present invention provided.
Fig. 6 A and Fig. 6 B are the present invention's synoptic diagram of the light source module of two embodiment in addition.
Fig. 7 is the synoptic diagram of the light source module of further embodiment of this invention.
Fig. 8 is the synoptic diagram of the light source module of yet another embodiment of the invention.
Description of reference numerals
100,200,200a, 200b, 300,400: light source module
110r: red light-emitting diode
110g: green light LED
110b: blue light-emitting diode
112r, 222: ruddiness
112g, 232: green glow
112b, 242: blue light
120,254: catoptron
130a, 130b, 256a, 256b: double-colored spectroscope
140: optical integration pillar
202: illuminating bundle
210,430: circuit board
220: the first light sources
230: the secondary light source group
240: the three light sources
250a, 250b: close the light unit
252a, 252b: double-colored light splitting surface
310: lamp box
312: the bottom
314: go out optical cross-section
320,420: pointolite
330: diffusing panel
410: light guide plate
412: incidence surface
R1, R2: first pointolite
G1, G2: second pointolite
B1, B2: light source thirdly
R1, R2, R3: first pointolite
G1, G2, G3: second pointolite
B1, B2, B3: light source thirdly
PR, PR1, PR2, PR3, PG, PG1, PG2, PG3, PB, PB1, PB2, PB3: color coordinate point
Embodiment
The light source module of one embodiment of the invention comprises a plurality of first pointolites, a plurality of second pointolite and a plurality of thirdly light source.The main emission wavelength of first pointolite and has the main emission wavelength difference of two first pointolites at least in the wavelength coverage of first coloured light.In addition, the main emission wavelength of second pointolite and has the main emission wavelength difference of two second pointolites at least in the wavelength coverage of second coloured light.In addition, thirdly the main emission wavelength of light source and has two thirdly main emission wavelength differences of light source at least in the wavelength coverage of the 3rd coloured light.
Hold above-mentionedly, light source module of the present invention can be used in general illumination or the electronic product (as projection arrangement, liquid crystal indicator etc.) so that the light source of required by electronic product to be provided.Below will enumerate the embodiment that light source module of the present invention is applied to projection arrangement and liquid crystal indicator, but it is not in order to limit the purposes of light source module of the present invention.In addition, will be respectively ruddiness, green glow and blue light with first coloured light, second coloured light and the 3rd coloured light hereinafter and describe, but it is not in order to limit the present invention.
Fig. 3 is the synoptic diagram of the light source module of one embodiment of the invention, and Fig. 4 A is the normalization spectrogram of each pointolite among Fig. 3, and Fig. 4 B is the synoptic diagram of light pairing color coordinate point in the CIE1931 chromatic diagram that each pointolite provided among Fig. 3.Please earlier with reference to Fig. 3 and Fig. 4 A, the light source module 200 of present embodiment is applicable in the projection arrangement, to provide projection arrangement required illuminating bundle.In light source module 200, first pointolite can be divided into two kinds (i.e. first pointolite R1 and R2), and second pointolite can be divided into two kinds (i.e. second pointolite G1 and G2), and thirdly light source can be divided into two kinds (promptly thirdly light source B1 and B2).
The first pointolite R1 is different with the main emission wavelength of R2, and its main emission wavelength is in the wavelength coverage of ruddiness.The second pointolite G1 is different with the main emission wavelength of G2, and its main emission wavelength is in the wavelength coverage of green glow.Thirdly light source B1 is different with the main emission wavelength of B2, and its main emission wavelength is in the wavelength coverage of blue light.In addition, the first pointolite R1, R2, the second pointolite G1, G2 and thirdly light source B1, B2 are disposed on the circuit board 210.
Hold above-mentioned, the first pointolite R1, R2, the second pointolite G1, G2 and thirdly light source B1, B2 can be light emitting diode or laser diode.In more detail, the first pointolite R1, R2, the second pointolite G1, G2 and thirdly light source B1, B2 can all be light emitting diode or all be laser diode that or a part is a light emitting diode, remaining is a laser diode.But each point quantity of light source of the present invention is not limited to two, and each pointolite quantity also can be more than three or three.And each pointolite arrangement mode is not limited to shown in Figure 3.
In a preferred embodiment, the main emission wavelength of the first pointolite R1 and the second pointolite R2 is respectively λ
11With λ
12, and 4nm≤| λ
12-λ
11|≤40nm.In addition, the main emission wavelength of the second pointolite G1 and the second pointolite G2 is respectively λ
21With λ
22, and 4nm≤| λ
22-λ
21|≤20nm.In addition, thirdly light source B1 is respectively λ with the main emission wavelength of light source B2 thirdly
31And λ
32, and 4nm≤| λ
32-λ
31|≤30nm.
With λ
11, λ
12, λ
21, λ
22, λ
31With λ
32Equaling 620nm, 632nm, 527nm, 537nm, 448nm and 466nm respectively is example.Light pairing color coordinate point in the CIE1931 chromatic diagram that first pointolite R1 and the R2 provided for example is respectively PR1 (0.690,0.308) and PR2 (0.712,0.289), and behind the light mixed light that first pointolite R1 and the R2 provided in the CIE1931 chromatic diagram pairing color coordinate point be PR (0.701,0.296), and the main wavelength behind the mixed light is 628nm.In addition, the light that second pointolite G1 and the G2 provided pairing color coordinate point in the CIE1931 chromatic diagram is respectively PG1 (0.180,0.700) and PG2 (0.220,0.720), and behind the light mixed light that second pointolite G1 and the G2 provided in the CIE1931 chromatic diagram pairing color coordinate point be PG (0.199,0.708), and the main wavelength behind the mixed light is 531nm.In addition, thirdly light pairing color coordinate point in the CIE1931 chromatic diagram of being provided of light source B1 and B2 is respectively PB1 (0.160,0.020) and PB2 (0.139,0.050), and thirdly behind the light mixed light that provided of light source B1 and B2 in the CIE1931 chromatic diagram pairing color coordinate point be PB (0.151,0.033), and the main wavelength behind the mixed light is 458nm.
Because the light source module 200 of present embodiment is to blend together required ruddiness color by the light that first pointolite R1 and the R2 provided, the light that is provided by second pointolite G1 and the G2 blendes together required green glow color, and blendes together required blue light color by the light that light source B1 and B2 thirdly provided.So, can improve ruddiness, green glow and blue light discontinuous problem in the wavelength of visible light scope, so the drilling the colour system number and can bring up between 60 to 85 of the white light that ruddiness, green glow and blue light blended together.This light source module 200 is applied in the projection arrangement, can improves the image quality of projection arrangement.
At the main emission wavelength of pointolite may along with the temperature variation of pointolite or the electric current that feeds pointolite changes and drift to some extent, in an embodiment of the present invention, can improve the light source instability quality phenomenon that main emission wavelength drift causes light source module to provide by the pointolite of choosing different qualities.
For instance, the material of the first pointolite R1 can comprise indium arsenide/aluminium gallium arsenide (InAs/AlGaAs), and its main emission wavelength can produce blue displacement because of the temperature rising of the first pointolite R1.The material of the first pointolite R2 can comprise InGaN/gallium nitride (InGaN/GaN), and its main emission wavelength can produce red displacement because of the temperature rising of the first pointolite R2.So, when the temperature of the first pointolite R1 and R2 raise, though its main emission wavelength can produce blue displacement and red displacement respectively, the ruddiness color that the light that is provided by first pointolite R1 and the R2 blendes together was difficult for being affected.
Therefore, the main emission wavelength of selected in the present embodiment part first pointolite (as the first pointolite R1) can raise along with the temperature of first pointolite and produce blue displacement, and the main emission wavelength of remaining first pointolite (as the first pointolite R2) can raise along with the temperature of first pointolite and produce red displacement.In addition, the main emission wavelength of selected in the present embodiment part second pointolite (as the second pointolite G1) can raise along with the temperature of second pointolite and produce blue displacement, and the main emission wavelength of remaining second pointolite (as the second pointolite G2) can raise along with the temperature of second pointolite and produce red displacement.In addition, the selected in the present embodiment part thirdly main emission wavelength of light source (as light source B1 thirdly) can raise and produces blue displacement along with the temperature of light source thirdly, remaining thirdly the main emission wavelength of light source (as light source B2 thirdly) can raise and produce red displacement along with the temperature of light source thirdly.
In like manner, in another embodiment, the main emission wavelength of part first pointolite (as the first pointolite R1) can and produce blue displacement along with the electric current increase that feeds first pointolite, and the main emission wavelength of remaining first pointolite (as the first pointolite R2) can produce red displacement along with the electric current increase that feeds first pointolite.In addition, the main emission wavelength of part second pointolite (as the second pointolite G1) can and produce blue displacement along with the electric current increase that feeds second pointolite, and the main emission wavelength of remaining second pointolite (as the second pointolite G2) can produce red displacement along with the electric current increase that feeds second pointolite.In addition, the part thirdly main emission wavelength of light source (as light source B1 thirdly) can increase and produces blue displacement along with feeding thirdly the electric current of light source, remaining thirdly the main emission wavelength of light source (as light source B2 thirdly) can increase and produce red displacement along with feeding thirdly the electric current of light source.What must illustrate is, the main emission wavelength of alleged part first pointolite of the present invention or the embodiment of the invention (second pointolite/thirdly light source) can increase or along with the electric current that feeds first pointolite (second pointolite/thirdly light source) increases and produces blue displacement along with temperature, or similar term, the quantity of its so-called " part first pointolite " is one or more.
Though first pointolite of present embodiment, second pointolite are to divide into two kinds respectively with light source thirdly, first pointolite, second pointolite can be divided into two or more respectively with light source thirdly in the present invention.To illustrate that below first pointolite, second pointolite and light source thirdly divide into three kinds embodiment respectively.
Fig. 5 A and Fig. 5 B are respectively the synoptic diagram of light pairing color coordinate point in the CIE1931 chromatic diagram that normalization spectrogram and each pointolite of each pointolite in another embodiment of the present invention provided.Please refer to Fig. 5 A and Fig. 5 B, in the present embodiment, first pointolite is divided into three kinds (i.e. the first pointolite R1, R2 and R3), and second pointolite is divided into three kinds (i.e. the second pointolite G1, G2 and G3), and thirdly light source region is divided into three kinds (promptly thirdly light source B1, B2 and B3).
The main emission wavelength of the first pointolite R1, R2 and R3 is respectively λ
11, λ
12With λ
13, and 4nm≤| λ
12-λ
11|≤40nm, 4nm≤| λ
13-λ
12|≤40nm.The main emission wavelength of the second pointolite G1, G2 and G3 is respectively λ
21, λ
22With λ
23, and 4nm≤| λ
22-λ
21|≤20nm, 4nm≤| λ
23-λ
22|≤20nm.Thirdly the main emission wavelength of light source B1, B2 and B3 is respectively λ
31, λ
32With λ
33, and 4nm≤| λ
32-λ
31|≤30nm, 4nm≤| λ
33-λ
32|≤30nm.
With λ
11, λ
12, λ
13, λ
21, λ
22, λ
23, λ
31, λ
32With λ
33Equaling 620nm, 630nm, 648nm, 524nm, 529nm, 537nm, 448nm, 453nm and 467nm respectively is example.Light pairing color coordinate point in the CIE1931 chromatic diagram that first pointolite R1, R2 and the R3 provided for example is respectively PR1 (0.691,0.308), PR2 (0.708,0.292) and PR3 (0.690,0.280), and behind the light mixed light that first pointolite R1, R2 and the R3 provided in the CIE1931 chromatic diagram pairing color coordinate point be PR (0.701,0.296), and the main wavelength behind the mixed light is 628nm.The light that second pointolite G1, G2 and the G3 provided pairing color coordinate point in the CIE1931 chromatic diagram is respectively PG1 (0.180,0.670), PG2 (0.180,0.730) and PG3 (0.220,0.720), and behind the light mixed light that second pointolite G1, G2 and the G3 provided in the CIE1931 chromatic diagram pairing color coordinate point be PG (0.199,0.708), and the main wavelength behind the mixed light is 531nm.In addition, thirdly light pairing color coordinate point in the CIE1931 chromatic diagram of being provided of light source B1, B2 and B3 is respectively PB1 (0.160,0.020) and PB2 (0.171,0.050) and PB3 (0.133,0.050), and thirdly behind the light mixed light that provided of light source B1, B2 and B3 in the CIE1931 chromatic diagram pairing color coordinate point be PB (0.151,0.033), and the main wavelength behind the mixed light is 458nm.
Because first pointolite of present embodiment, second pointolite and thirdly the main emission wavelength of light source can divide into three kinds respectively, so can further improve ruddiness, green glow and blue light discontinuous problem in the wavelength of visible light scope, so the colour system number of drilling of the white light that ruddiness, green glow and blue light blended together can be brought up between 70 to 95.In addition, identical with last embodiment, also can improve the influence that the main emission wavelength drift of pointolite is caused in the present embodiment by the pointolite of choosing different qualities.
Fig. 6 A and Fig. 6 B are the present invention's synoptic diagram of the light source module of two embodiment in addition.Please earlier with reference to Fig. 6 A, light source module 200a of the present invention is applicable in the projection arrangement, and this light source module 200a comprises that first light sources 220, secondary light source group 230, the 3rd light sources 240 and close light unit 250a.First light sources 220 comprises first pointolite (not illustrating) of a plurality of the invention described above embodiment, secondary light source group 230 comprises second pointolite (not illustrating) of a plurality of the invention described above embodiment, and the 3rd light sources 240 comprises the thirdly light source (not illustrating) of a plurality of the invention described above embodiment.In addition, identical with the above embodiments, first pointolite, second pointolite and thirdly light source can divide into two or more respectively according to its main emission wavelength.
Hold above-mentionedly, first light sources 220, secondary light source group 230 and the 3rd light sources 240 can provide ruddiness 222, green glow 232 and blue light 242 respectively.Closing light unit 250a for example is an X prism (X-prism), it has two double-colored light splitting surfaces (dichroic surface) 252a, 252b, wherein double-colored light splitting surface 252b can make green glow 232 pass through and reflect red 222, and double-colored light splitting surface 252a can make green glow 232 pass through and reflect blue 242, so that ruddiness 222, green glow 232 and blue light 242 are merged into an illuminating bundle 202.
Please refer to Fig. 6 B, the light source module 200b of present embodiment is in closing the light unit with the different of the light source module 200a of Fig. 6 A.Particularly, the light unit 250b that closes of light source module 200b comprises catoptron 254 and two double-colored spectroscope 256a, 256b.Catoptron 254 can reflex to double-colored spectroscope 256b with the ruddiness 222 that first light sources 230 is provided.Double-colored spectroscope 256a can reflex to double-colored spectroscope 256b with the blue light 242 that the 3rd light sources 240 is provided, and makes green glow 232 that secondary light source group 230 provided by being passed to double-colored spectroscope 256b.Double-colored spectroscope 256b can make ruddiness 222 pass through and reflect green light 232 and blue light 242, so that ruddiness 222, green glow 232 and blue light 242 are merged into an illuminating bundle 202.
Fig. 7 is the synoptic diagram of the light source module of further embodiment of this invention.Please refer to Fig. 7, the light source module 300 of present embodiment is applicable in the liquid crystal indicator, to provide liquid crystal indicator required display light source.This light source module 300 comprises lamp box 310 and a plurality of pointolites 320, and wherein pointolite 320 is the bottoms 312 that are disposed at lamp box 310.Pointolite 320 comprises second pointolite of first pointolite of a plurality of the invention described above embodiment, a plurality of the invention described above embodiment and the thirdly light source of a plurality of the invention described above embodiment.In addition, identical with the above embodiments, first pointolite, second pointolite and thirdly light source can divide into two or more respectively according to its main emission wavelength.In addition, the bright dipping section 314 at lamp box 310 can be provided with diffusing panel 330.
Fig. 8 is the synoptic diagram of the light source module of yet another embodiment of the invention.Please refer to Fig. 8, the light source module 400 of present embodiment is applicable in the liquid crystal indicator, to provide liquid crystal indicator required display light source.This light source module 400 comprises light guide plate 410 and a plurality of pointolites 420, and wherein light guide plate 410 has at least one incidence surface 412, and pointolite 420 for example is to be disposed on the circuit board 430, and is positioned at incidence surface 412 sides of light guide plate 410.In addition, pointolite 420 comprises second pointolite of first pointolite of a plurality of the invention described above embodiment, a plurality of the invention described above embodiment and the thirdly light source of a plurality of the invention described above embodiment.In addition, identical with the above embodiments, first pointolite, second pointolite and thirdly light source can divide into two or more respectively according to its main emission wavelength.
Since first pointolite of the light source module 300,400 of Fig. 7 and Fig. 8, second pointolite and light source thirdly comply with its main emission wavelength can divide into respectively two or more, so can improve ruddiness, green glow and blue light discontinuous problem in the wavelength of visible light scope.So, that can improve white light that ruddiness, green glow and blue light blend together drills the colour system number, and then promotes the display quality of liquid crystal indicator.In addition, identical with the above embodiments, in light source module 300,400, also can improve the color problem of unstable that light source module 300,400 light sources that provided are provided because of the main emission wavelength drift of pointolite by the pointolite of choosing different qualities.
Light source module of the present invention is not limited to be made up of three kinds of color of light, also can form with four or more color of light; In addition, light source module of the present invention can be used in also that two kinds of color of light form, even form by a monochromatic light.For example, in greenhouse plantation environment, must use light of particular color (for example sodium yellow) illumination, make harmful insect can't see crops, a kind of light source module that this moment, light source module promptly was made up of a plurality of pointolites, and the main emission wavelength of these a plurality of pointolites is in the wavelength coverage of a monochromatic light (for example sodium yellow), and has the main emission wavelength difference of two pointolites at least.In addition, on other were used, for example the situation illumination needed light of particular color, also can adopt a kind of light source module of being made up of a plurality of pointolites, and the main emission wavelength of these a plurality of pointolites is in a monochromatic wavelength coverage, and has the main emission wavelength difference of two pointolites at least.Utilize this mode, can make the color of the light source that light source module provides comparatively stable, and bigger because contain spectral range, drill the colour system number so can improve.
In sum, light source module of the present invention has following one or part or all of advantage at least:
1. in light source module of the present invention since first pointolite, second pointolite and thirdly light source can divide into two or morely respectively according to its main emission wavelength, drill the colour system number so can improve.
2. by choosing the pointolite of different qualities, can improve the color problem of unstable that main emission wavelength drift because of pointolite causes the light source that light source module provides.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those skilled in the art under any in the technical field; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.Arbitrary embodiment of the present invention in addition or claim must not reached the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (23)
1, a kind of light source module comprises:
A plurality of first pointolites, the main emission wavelength of these first pointolites is in the wavelength coverage of first coloured light, and the main emission wavelength difference that has two these first pointolites at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement;
A plurality of second pointolites, the main emission wavelength of these second pointolites and have the main emission wavelength difference of two these second pointolites at least in the wavelength coverage of second coloured light; And
A plurality of thirdly light sources, these thirdly the main emission wavelength of light source in the wavelength coverage of the 3rd coloured light, and have two these main emission wavelength differences of light source thirdly at least.
2, light source module as claimed in claim 1, wherein this first coloured light, this second coloured light and the 3rd coloured light are respectively ruddiness, green glow and blue light.
3, light source module as claimed in claim 2, wherein these first pointolites are divided into two kinds, and its main emission wavelength is respectively λ
11With λ
12, and 4nm≤| λ
12-λ
11|≤40nm.
4, light source module as claimed in claim 2, wherein these first pointolites are divided into three kinds, and its main emission wavelength is respectively λ
11, λ
12With λ
13, and 4nm≤| λ
12-λ
11|≤40nm, 4nm≤| λ
13-λ
12|≤40nm.
5, light source module as claimed in claim 2, wherein these second pointolites are divided into two kinds, and its main emission wavelength is respectively λ
21With λ
22, and 4nm≤| λ
22-λ
21|≤20nm.
6, light source module as claimed in claim 2, wherein these second pointolites are divided into three kinds, and its main emission wavelength is respectively λ
21, λ
22With λ
23, and 4nm≤| λ
22-λ
21|≤20nm, 4nm≤| λ
23-λ
22|≤20nm.
7, light source module as claimed in claim 2, wherein these thirdly light source region be divided into two kinds, its main emission wavelength is respectively λ
31With λ
32, and 4nm≤| λ
32-λ
31|≤30nm.
8, light source module as claimed in claim 2, wherein these thirdly light source region be divided into three kinds, its main emission wavelength is respectively λ
31, λ
32With λ
33, and 4nm≤| λ
32-λ
31|≤30nm, 4nm≤| λ
33-λ
32|≤30nm.
9, light source module as claimed in claim 1, wherein when the temperature of these second pointolites raise, the main emission wavelength of these second pointolites of part can produce blue displacement, and the main emission wavelength of remaining second pointolite can produce red displacement.
10, light source module as claimed in claim 1, wherein when these when thirdly the temperature of light source raises, part these thirdly the main emission wavelength of light source can produce blue displacement, remaining thirdly the main emission wavelength of light source can produce red displacement.
11, light source module as claimed in claim 1, wherein when the electric current that feeds these first pointolites increased, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement.
12, light source module as claimed in claim 1, wherein when the electric current that feeds these second pointolites increased, the main emission wavelength of these second pointolites of part can produce blue displacement, and the main emission wavelength of remaining second pointolite can produce red displacement.
13, light source module as claimed in claim 1, wherein when feeding these thirdly the electric current of light source increase, part these thirdly the main emission wavelength of light source can produce blue displacement, remaining thirdly the main emission wavelength of light source can produce red displacement.
14, light source module as claimed in claim 1, wherein each these first pointolite is light emitting diode or laser diode, each these second pointolite is light emitting diode or laser diode, each these thirdly light source be light emitting diode or laser diode.
15, light source module as claimed in claim 1 also comprises circuit board, and these first pointolites, these second pointolites and these thirdly light source be on this circuit board of configuration.
16, light source module as claimed in claim 1 also comprises and closes the light unit, so that these first pointolites, these second pointolites and these light that thirdly light source was provided are merged into an illuminating bundle.
17, light source module as claimed in claim 1 also comprises a lamp box, and these first pointolites, these second pointolites and these thirdly light source be to be disposed at this lamp box bottom.
18, light source module as claimed in claim 17 also comprises diffusing panel, is disposed at the bright dipping section of this lamp box.
19, light source module as claimed in claim 1 also comprises light guide plate, and this light guide plate has at least one incidence surface, and these first pointolites, these second pointolites and these thirdly light source be to be disposed at by this incidence surface.
20, a kind of light source module comprises:
A plurality of first pointolites, the main emission wavelength of these first pointolites is in the wavelength coverage of red light, and the main emission wavelength difference that has two these first pointolites at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement;
A plurality of second pointolites, the main emission wavelength of these second pointolites and have the main emission wavelength difference of two these second pointolites at least in the wavelength coverage of green light; And
A plurality of thirdly light sources, these thirdly the main emission wavelength of light source in the wavelength coverage of blue light, and have two these main emission wavelength differences of light source thirdly at least,
Wherein the main emission wavelength of these two first pointolites is respectively λ
11With λ
12, and 4nm≤| λ
12-λ
11|≤40nm, these two second main emission wavelengths of pointolite are respectively λ
21With λ
22, and 4nm≤| λ
22-λ
21|≤20nm, these two thirdly the main emission wavelength of light source be respectively and be λ
31With λ
32, and 4nm≤| λ
32-λ
31|≤30nm.
21, a kind of light source module, comprise a plurality of pointolites of at least the first group, the main emission wavelength of this every bit light source of first group is in the first monochromatic wavelength coverage, and this first group of pointolite has the main emission wavelength difference of two pointolites at least, wherein when the temperature of these first pointolites raises, the main emission wavelength of these first pointolites of part can produce blue displacement, and the main emission wavelength of remaining first pointolite can produce red displacement.
22, light source module as claimed in claim 21, wherein this monochromatic light is red light, orange-colored light, sodium yellow, green light, blue light, indigo coloured light or purple light.
23, light source module as claimed in claim 21, also comprise second group of a plurality of pointolite, the main emission wavelength of this every bit light source of second group is in the second monochromatic wavelength coverage, and this second group of pointolite has the main emission wavelength difference of two pointolites at least, and this first monochromatic light is different with this second monochromatic light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710127393A CN100590518C (en) | 2007-07-02 | 2007-07-02 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710127393A CN100590518C (en) | 2007-07-02 | 2007-07-02 | Light source module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101339356A CN101339356A (en) | 2009-01-07 |
| CN100590518C true CN100590518C (en) | 2010-02-17 |
Family
ID=40213454
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710127393A Expired - Fee Related CN100590518C (en) | 2007-07-02 | 2007-07-02 | Light source module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100590518C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5311149B2 (en) * | 2010-12-07 | 2013-10-09 | カシオ計算機株式会社 | Light source device and projector |
| JP6768191B2 (en) * | 2015-08-26 | 2020-10-14 | カシオ計算機株式会社 | Light source device and projection device |
| US9983468B2 (en) | 2015-08-26 | 2018-05-29 | Casio Computer Co., Ltd. | Light source unit and projector |
| JP6820703B2 (en) * | 2016-09-15 | 2021-02-10 | カシオ計算機株式会社 | Light source device and projection device |
| CN108617351B (en) * | 2017-12-15 | 2020-04-17 | 杭州彬康农业科技有限公司 | Movable laser illumination constant-temperature plant incubator |
| US12075021B2 (en) | 2020-01-30 | 2024-08-27 | Dolby Laboratories Licensing Corporation | Projection system and method with blended color gamut |
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2007
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| Publication number | Publication date |
|---|---|
| CN101339356A (en) | 2009-01-07 |
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