US 8,477,414 B2 · Optical element, window material, fitting, and insolation shielding device · patentgrep

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Abstract

An optical element has a first optical layer; a reflective layer; and a second optical layer. The reflective layer includes at least five layers of high refractive-index layers and metal layers alternately laminated. When a thickness L of the entire reflective layer is 80 nm, a ratio α of an optical thickness of the entire metal layers to that of the entire high refractive-index layers and a ratio β of an optical thickness of a third high refractive-index layer to that of a first high refractive-index layer are included in a first region, when the thickness L is 90 nm, the ratios α and β are included in a second region, and when the thickness L is 80 to 90 nm, the ratios α and β are included in a space enclosed by the first region, the second region, and straight lines derived from these regions.

Claims22

Dependent claims

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 80 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (1) to (4),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 90 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (5) to (8), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 80 to 90 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (9) to (12)
α=−0.0004β2+0.0053β+0.0065 (1)
α=−1×10−5β2+0.0007β+0.0066 (2)
α=−1×10−5β2+0.0005β+0.0119 (3)
α=0.012114 (4)
α=−0.0002β2+0.0039β+0.0087 (5)
α=−3×10−5β2+0.0014β+0.0038 (6)
α=−2×10−5β2+0.0006β+0.0112 (7)
α=0.010589 (8)
(β−0.5)/0.67=(α−0.01059)/0.00152478=(90−L)/10 (9)
(β−5.5)/3.75=(α−0.01059)/0.00152478=(90−L)/10 (10)
(β−10.4)/10.6=(α−0.01516)/0.00067768=(90−L)/10 (11)
(β−0.8)/0.45=(α−0.01161)/0.0008471=(90−L)/10 (12).

17 more elements

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 90 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (5) to (8),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 100 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (13) to (16), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 90 to 100 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (17) to (20)
α=−0.0002β2+0.0039β+0.0087 (5)
α=−3×10−5β2+0.0014β+0.0038 (6)
α=−2×10−5β2+0.0006β+0.0112 (7)
α=0.010589 (8)
α=−0.0002β2+0.0055β+0.0057 (13)
α=−0.0002β2+0.0045β−0.0067 (14)
α=−4×10−5β2+0.001β+0.0099 (15)
α=0.009403 (16)
(0.7−β)/0.2=(α−0.0094)/0.00118594=(100−L)/10 (17)
(β−4.4)/1.1=(α−0.0094)/0.00118594=(100−L)/10 (18)
(β−6.5)/3.9=(α−0.01432)/0.0008471=(100−L)/10 (19)
(1−β)/0.2=(α−0.01093)/0.00067768=(100−L)/10 (20).

17 more elements

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 100 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (13) to (16),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 120 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (21) to (24), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 100 to 120 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (25) to (28)
α=−0.0002β2+0.0055β+0.0057 (13)
α=−0.0002β2+0.0045β−0.0067 (14)
α=−4×10−5β2+0.001β+0.0099 (15)
α=0.009403 (16)
α=−0.0003β2+0.0074β+0.0033 (21)
α=−0.0014β2+0.0191β−0.0422 (22)
α=−9×10−5β2+0.0015β+0.0084 (23)
α=0.007709 (24)
(β−0.6)/0.1=(α−0.00771)/0.0016942=(120−L)/20 (25)
(β−3.6)/0.8=(α−0.00771)/0.0016942=(120−L)/20 (26)
(β−4.25)/2.25=(α−0.0133)/0.00101652=(120−L)/20 (27)
(β−0.9)/0.1=(α−0.00974)/0.00118594=(120−L)/20 (28).

17 more elements

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 120 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (21) to (24),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 140 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (29) to (32), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 120 to 140 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (33) to (36)
α=−0.0003β2+0.0074β+0.0033 (21)
α=−0.0014β2+0.0191β−0.0422 (22)
α=−9×10−5β2+0.0015β+0.0084 (23)
α=0.007709 (24)
α=−0.0014β2+0.0136β−0.0027 (29)
β=10,132α2−241.39α+4.747 (30)
α=−0.0001β2+0.002β+0.0074 (31)
α=0.006523 (32)
(0.75−β)/0.15=(α−0.00652)/0.00118594=(140−L)/20 (33)
(3.65−β)/0.05=(α−0.00652)/0.00118594=(140−L)/20 (34)
(β−3.3)/0.95=(α−0.01245)/0.0008471=(140−L)/20 (35)
(3.47−β)/2.57=(α−0.00754)/0.00220246=(140−L)/20 (36).

17 more elements

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 140 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (29) to (32),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 160 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (37) to (41), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 140 to 160 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (42) to (45)
α=−0.0014β2+0.0136β−0.0027 (29)
β=10,132α2−241.39α+4.747 (30)
α=−0.0001β2+0.002β+0.0074 (31)
α=0.006523 (32)
α=−0.005β2+0.0273β−0.0145 (37)
α=0.0043β2−0.0332β+0.07 (38)
β=2.875 (39)
α=−0.0001β2+0.0025β+0.0062 (40)
α=0.005676 (41)
(0.9−β)/0.15=(α−0.00568)/0.0008471=(160−L)/20 (42)
(3.8−β)/0.15=(α−0.00568)/0.0008471=(160−L)/20 (43)
(β−2.85)/0.45=(α−0.01203)/0.00042355=(160−L)/20 (44)
(β−1.05)/2.42=(0.00864−α)/0.00110123=(160−L)/20 (45).

18 more elements

An optical element comprising:

a first optical layer having a light emission surface;
a wavelength-selective reflective layer provided on the first optical layer;
and
a second optical layer provided on the wavelength-selective reflective layer and having a light incidence surface,
wherein the wavelength-selective reflective layer has a structure including at least five layers in which high refractive-index layers and metal layers are alternately laminated to each other,
when a geometric film thickness L of the entire wavelength-selective reflective layer is 160 nm, a ratio α of an optical film thickness of the entire metal layers to an optical film thickness of the entire high refractive-index layers and a ratio β of an optical film thickness of a third high refractive-index layer from one of a first optical layer side and a second optical layer side to an optical film thickness of a first high refractive-index layer therefrom are included in a first region surrounded by the following formulas (37) to (41),
when the geometric film thickness L of the entire wavelength-selective reflective layer is 180 nm, the ratio α and the ratio β are included in a second region surrounded by the following formulas (46) to (49), and
when the geometric film thickness L of the entire wavelength-selective reflective layer is in a range of 160 to 180 nm, the ratio α and the ratio β are included in a space enclosed by the first region, the second region, and the following formulas (50) to (53)
α=−0.005β2+0.0273β−0.0145 (37)
α=0.0043β2−0.0332β+0.07 (38)
β=2.875 (39)
α=−0.0001β2+0.0025β+0.0062 (40)
α=0.005676 (41)
α=−0.0103β2+0.047β−0.0322 (46)
α=0.0093β2−0.0677β+0.1212 (47)
α=−0.0003β2+0.0036β+0.0046 (48)
α=0.00498 (49)
(1.05−β)/0.15=(α−0.005)/0.00067768=(180−L)/20 (50)
(β−2.75)/1.05=(α−0.005)/0.00067768=(180−L)/20 (51)
(β−2.4)/0.45=(α−0.01177)/0.00025413=(180−L)/20 (52)
(1.2−β)/0.15=(α−0.00856)/0.00008471=(180−L)/20 (53).

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/035,501Filed 25 Feb 2011
Priority: JP P2010-0459092 Mar 2010
Published: US 2011/0216414 A18 Sep 2011
Granted: 2 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

Family

US 2011/0216414 A1Pre-grant publication · published 8 Sep 2011
US 8,477,414 B2This patent

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