JP2014197536A5

JP2014197536A5 -

Info

Publication number: JP2014197536A5
Application number: JP2014041321A
Authority: JP
Filing date: 2014-03-04
Publication date: 2017-04-06
Anticipated expiration: 2034-03-04

Claims

A light-emitting device having a light-emitting element and a control element in which a semiconductor light-emitting element is embedded,
Let the wavelength be λ (nm),
The spectral distribution of the light emitted from the light emitting element in the main radiation direction is Φ _elm (λ), the spectral distribution of the light emitted from the light emitting device in the main radiation direction is φ _SSL (λ),
Φ _elm (λ) does not satisfy at least one of the following conditions 1 and 3 ′, and φ _SSL (λ) satisfies both of the following conditions 1 and 3 ′ .
Condition 1:
Including the light in which the distance D _uv from the black body radiation locus defined in ANSI C78.377 in the spectral distribution of the target light is −0.0350 ≦ D _uv <0 .
Condition 3 ′:
CIE 1976 L ^* a ^* b ^* a ^* value in color space , b ^{* of the following} 15 types of modified Munsell color charts from # 01 to # 15 when the illumination by the spectral distribution of the target light is mathematically assumed
The values are a ^* _n and b ^* _n (where n is a natural number from 1 to 15),
CIE 1976 L ^{* of the} 15 types of modified Munsell color charts when mathematically assuming illumination with reference light selected according to the correlated color temperature T (K) of light emitted in the radiation direction
a ^{^{^*}} b ^* a ^* values in a color space, b ^* values, respectively a ^* _nref, when the b ^* _nref (where n is a natural number of 1 to 15), the saturation difference [Delta] C _n
−3.8 ≦ ΔC _n ≦ 18.6 (n is a natural number from 1 to 15)
Meet.
However, ΔC _n = √ {(a ^* _n ) ² + (b ^* _n ) ² } −√ {(a ^* _nref ) ² + (b ^* _nr
_ef ) ² }.
15 kinds of modified Munsell color chart
# 01 7.5 P 4/10
# 02 10 PB 4/10
# 03 5 PB 4/12
# 04 7.5 B 5/10
# 05 10 BG 6/8
# 06 2.5 BG 6/10
# 07 2.5 G 6/12
# 08 7.5 GY 7/10
# 09 2.5 GY 8/10
# 10 5 Y 8.5 / 12
# 11 10 YR 7/12
# 12 5 YR 7/12
# 13 10 R 6/12
# 14 5 R 4/14
# 15 7.5 RP 4/12

A light emitting device according to claim 1, Φ _{elm (λ)} does not satisfy at least one of the following conditions 3'' and condition 4, the phi _{SSL (lambda)} is the following condition 3'' and condition 4 A light emitting device characterized by satisfying both.
Condition 3 ″ :
[Delta] C _max the maximum value of the saturation degree differences, when the minimum value of the saturation difference and the [Delta] C _min, and a maximum value of the saturation difference, the difference between the minimum value of the saturation difference | ΔC _max -ΔC _min | Is 2.8 ≦ | ΔC _max −ΔC _min | ≦ 19.6
Meet .
Condition 4:
The hue angle in the CIE 1976 L ^* a ^* b ^* color space of the above 15 kinds of modified Munsell color charts when the illumination by the spectral distribution of the target light is mathematically assumed is θ _n (degrees) (where n
Is a natural number from 1 to 15)
CIE 1976 L ^{* of the} 15 types of modified Munsell color charts when mathematically assuming illumination with reference light selected according to the correlated color temperature T (K) of light emitted in the radiation direction
When the hue angle in the a ^* b ^* color space is θ _nref (degree) (where n is a natural number from 1 to 15), the absolute value of the hue angle difference | Δh _n | is 0 ≦ | Δh _n | ≦ 9. 0 (degrees) (n is a natural number from 1 to 15)
Meet.
However, it is set as ₍ _{DELTA) hn} = (theta) _{n- (} theta ₎ _nref .

The light-emitting device according to claim 1, wherein Φ _ｅｌｍelm (Λ) does not satisfy the following condition 3 ′ ″, φ _ＳＳＬSSL (Λ) satisfies the following condition 3 ′ ″.
Condition 3 ″ ″:
Average SAT of saturation difference represented by the following formula (3) _ａｖav Satisfies the following formula (4).

  A light-emitting device having a light-emitting element and a control element in which a semiconductor light-emitting element is embedded,
  Let the wavelength be λ (nm),
  The spectral distribution of the light emitted from the light emitting element in the main radiation direction is Φ _ｅｌｍelm (Λ), the spectral distribution of light emitted from the light emitting device in the main radiation direction is φ _ＳＳＬSSL (Λ)
  Φ _ｅｌｍelm (Λ) does not satisfy at least one of the following conditions 1 and 2, and φ _ＳＳＬSSL
(Λ) satisfies both the following conditions 1 and 2 as a light emitting device.
Condition 1:
  Distance D from the blackbody radiation locus defined in ANSI C78.377 in the spectral distribution of the light of interest _ｕｖuv Is -0.0350 ≦ D _ｕｖuv   <Includes light that becomes zero.
Condition 2:
  The spectral distribution of the target light is φ (λ), and the spectral distribution of the reference light selected according to the correlated color temperature T (K) of the spectral distribution of the target light is φ _ｒｅｆref (Λ), the tristimulus value of the spectral distribution of the target light is (X, Y, Z), the tristimulus value of the reference light selected according to the T (K) is (X _ｒｅｆref , Y _ｒｅｆref , Z _ｒｅｆref )age,
  The normalized spectral distribution S (λ) of the target light and the normalized spectral distribution S of the reference light _ｒｅｆref (Λ) and the difference ΔS (λ) between these normalized spectral distributions,
  S (λ) = φ (λ) / Y
  S _ｒｅｆref (Λ) = φ _ｒｅｆref (Λ) / Y _ｒｅｆref
  ΔS (λ) = S _ｒｅｆref (Λ) −S (λ)
And define
  The wavelength that gives the longest wavelength maximum of S (λ) within the wavelength range of 380 nm to 780 nm is λ. _RR (Nm)
  λ _RR Longer than S (λ _RR ) / 2, where there is a wavelength Λ4, the index A expressed by the following formula (1) _ｃｇcg -360 ≦ A _{ｃｇ cg} ≦ −10, while
  λ _RR Longer than S (λ _RR ) / 2, when there is no wavelength Λ4, the index A expressed by the following formula (2) _ｃｇcg Is -360 ≦ A _{ｃｇ cg} ≦ −10 is satisfied.

  The light emitting device according to claim 4, wherein Φ _ｅｌｍelm (Λ) does not satisfy the following condition 3 ′, and φ _ＳＳＬSSL (Λ) satisfies the following condition 3 ′: a light emitting device.
Condition 3 ′:
  CIE 1976 L of the following 15 types of modified Munsell color charts from # 01 to # 15 when the illumination by the spectral distribution of the target light is mathematically assumed ^** a ^** b ^** A in color space ^** Value, b ^**
Each value is a ^** _ｎn , B ^** _ｎn (Where n is a natural number from 1 to 15)
  CIE 1976 L of the 15 types of modified Munsell color charts when the illumination with the reference light selected according to the correlated color temperature T (K) of the light emitted in the radiation direction is mathematically assumed. ^**
a ^** b ^** A in color space ^** Value, b ^** Each value is a ^** _{ｎｒｅｆnref} , B ^** _{ｎｒｅｆnref} (Where n is a natural number from 1 to 15), the saturation difference ΔC _ｎn But
  −3.8 ≦ ΔC _{ｎ n} ≦ 18.6 (n is a natural number from 1 to 15)
Meet.
  However, ΔC _ｎn = √ {(a ^** _ｎn ) ²² + (B ^** _ｎn ) ²² } -√ {(a ^** _{ｎｒｅｆnref} ) ²² + (B ^** _ｎｒnr
_ｅｆef ) ²² }.
  15 kinds of modified Munsell color chart
  # 01 7.5 P 4/10
  # 02 10 PB 4/10
  # 03 5 PB 4/12
  # 04 7.5 B 5/10
  # 05 10 BG 6/8
  # 06 2.5 BG 6/10
  # 07 2.5 G 6/12
  # 08 7.5 GY 7/10
  # 09 2.5 GY 8/10
  # 10 5 Y 8.5 / 12
  # 11 10 YR 7/12
  # 12 5 YR 7/12
  # 13 10 R 6/12
  # 14 5 R 4/14
  # 15 7.5 RP 4/12

  The light-emitting device according to claim 4, wherein Φ _ｅｌｍelm (Λ) does not satisfy at least one of the following condition 3 ″ and condition 4; _ＳＳＬSSL (Λ) satisfies both the following conditions 3 ″ and condition 4:
Condition 3 ″:
  The maximum value of the saturation difference is ΔC _ｍａｘmax , The minimum value of saturation difference is ΔC _ｍｉｎmin The difference between the maximum value of the saturation difference and the minimum value of the saturation difference | ΔC _ｍａｘmax -ΔC _ｍｉｎmin |
  2.8 ≤ | ΔC _ｍａｘmax -ΔC _ｍｉｎmin | ≦ 19.6
Meet.
Condition 4:
  CIE 1976 L of the above-mentioned 15 kinds of modified Munsell color charts when the illumination by the spectral distribution of the target light is mathematically assumed ^** a ^** b ^** The hue angle in the color space is θ _ｎn (Degree) (however, n
Is a natural number from 1 to 15)
  CIE 1976 L of the 15 types of modified Munsell color charts when the illumination with the reference light selected according to the correlated color temperature T (K) of the light emitted in the radiation direction is mathematically assumed. ^**
a ^** b ^** The hue angle in the color space is θ _{ｎｒｅｆnref} (Degree) (where n is a natural number from 1 to 15), the absolute value of the hue angle difference | Δh _ｎn |
  0 ≦ | Δh _ｎn | ≦ 9.0 (degrees) (n is a natural number from 1 to 15)
Meet.
  However, Δh _ｎn = Θ _ｎn −θ _{ｎｒｅｆnref} And

The light emitting device according to any one of claims 4 to 6, wherein Φ _ｅｌｍelm (Λ) does not satisfy the following condition 3 ′ ″, φ _ＳＳＬSSL (Λ) satisfies the following condition 3 ′ ″.
Condition 3 ″ ″:
Average SAT of saturation difference represented by the following formula (3) _ａｖav Satisfies the following formula (4).

  A light-emitting device having a light-emitting element and a control element in which a semiconductor light-emitting element is embedded,
  Let the wavelength be λ (nm),
  The spectral distribution of the light emitted from the light emitting element in the main radiation direction is Φ _ｅｌｍelm (Λ), the spectral distribution of light emitted from the light emitting device in the main radiation direction is φ _ＳＳＬSSL (Λ)
  Φ _ｅｌｍelm (Λ) satisfies both condition 1 and condition 3 ′ below, and φ _ＳＳＬSSL (Λ) also satisfies the following condition 1 and condition 3 ′.
Condition 1:
  Distance D from the blackbody radiation locus defined in ANSI C78.377 in the spectral distribution of the light of interest _ｕｖuv Is -0.0350 ≦ D _ｕｖuv   <Includes light that becomes zero.
Condition 3 ′:
  CIE 1976 L of the following 15 types of modified Munsell color charts from # 01 to # 15 when the illumination by the spectral distribution of the target light is mathematically assumed ^** a ^** b ^** A in color space ^** Value, b ^**
Each value is a ^** _ｎn , B ^** _ｎn (Where n is a natural number from 1 to 15)
  CIE 1976 L of the 15 types of modified Munsell color charts when the illumination with the reference light selected according to the correlated color temperature T (K) of the light emitted in the radiation direction is mathematically assumed. ^**
a ^** b ^** A in color space ^** Value, b ^** Each value is a ^** _{ｎｒｅｆnref} , B ^** _{ｎｒｅｆnref} (Where n is a natural number from 1 to 15), the saturation difference ΔC _ｎn But
  −3.8 ≦ ΔC _{ｎ n} ≦ 18.6 (n is a natural number from 1 to 15)
Meet.
  However, ΔC _ｎn = √ {(a ^** _ｎn ) ²² + (B ^** _ｎn ) ²² } -√ {(a ^** _{ｎｒｅｆnref} ) ²² + (B ^** _ｎｒnr
_ｅｆef ) ²² }.
  15 kinds of modified Munsell color chart
  # 01 7.5 P 4/10
  # 02 10 PB 4/10
  # 03 5 PB 4/12
  # 04 7.5 B 5/10
  # 05 10 BG 6/8
  # 06 2.5 BG 6/10
  # 07 2.5 G 6/12
  # 08 7.5 GY 7/10
  # 09 2.5 GY 8/10
  # 10 5 Y 8.5 / 12
  # 11 10 YR 7/12
  # 12 5 YR 7/12
  # 13 10 R 6/12
  # 14 5 R 4/14
  # 15 7.5 RP 4/12

  The light emitting device according to claim 8, wherein Φ _ｅｌｍelm (Λ) satisfies both the following conditions 3 ″ and 4 and φ _ＳＳＬSSL (Λ) also satisfies the following condition 3 ″ and condition 4;
Condition 3 ″:
  The maximum value of the saturation difference is ΔC _ｍａｘmax , The minimum value of saturation difference is ΔC _ｍｉｎmin The difference between the maximum value of the saturation difference and the minimum value of the saturation difference | ΔC _ｍａｘmax -ΔC _ｍｉｎmin |
  2.8 ≤ | ΔC _ｍａｘmax -ΔC _ｍｉｎmin | ≦ 19.6
Meet.
Condition 4:
  CIE 1976 L of the above-mentioned 15 kinds of modified Munsell color charts when the illumination by the spectral distribution of the target light is mathematically assumed ^** a ^** b ^** The hue angle in the color space is θ _ｎn (Degree) (however, n
Is a natural number from 1 to 15)
  CIE 1976 L of the 15 types of modified Munsell color charts when the illumination with the reference light selected according to the correlated color temperature T (K) of the light emitted in the radiation direction is mathematically assumed. ^**
a ^** b ^** The hue angle in the color space is θ _{ｎｒｅｆnref} (Degree) (where n is a natural number from 1 to 15), the absolute value of the hue angle difference | Δh _ｎn |
  0 ≦ | Δh _ｎn | ≦ 9.0 (degrees) (n is a natural number from 1 to 15)
Meet.
  However, Δh _ｎn = Θ _ｎn −θ _{ｎｒｅｆnref} And

The light-emitting device according to claim 8 or 9, wherein Φ _ｅｌｍelm (Λ) satisfies the following condition 3 ′ ″, φ _ＳＳＬSSL (Λ) also satisfies the following condition 3 ′ ″.
Condition 3 ″ ″:
Average SAT of saturation difference represented by the following formula (3) _ａｖav Satisfies the following formula (4).

A light-emitting device having a light-emitting element and a control element in which a semiconductor light-emitting element is embedded,
Let the wavelength be λ (nm),
The spectral distribution of the light emitted from the light emitting element in the main radiation direction is Φ _elm (λ), the spectral distribution of the light emitted from the light emitting device in the main radiation direction is φ _SSL (λ),
Φ _elm (λ) satisfies both condition 1 and condition 2 below, and φ _SSL (λ) also satisfies both condition 1 and condition 2 below.
Condition 1:
Including the light in which the distance D _uv from the black body radiation locus defined in ANSI C78.377 in the spectral distribution of the target light is −0.0350 ≦ D _uv <0 .
Condition 2:
The target light spectral distribution is φ (λ), the reference light spectral distribution selected according to the correlated color temperature T (K) of the target light spectral distribution is φ _ref (λ), and the target light is distributed. The tristimulus values of the spectral distribution of light are (X, Y, Z), the reference tristimulus values of the light selected according to T (K) are (X _ref , Y _ref , Z _ref ),
The normalized spectral distribution S (λ) of the target light, the normalized spectral distribution S _ref (λ) of the reference light, and the difference ΔS (λ) between these normalized spectral distributions, respectively,
S (λ) = φ (λ) / Y
S _ref (λ) = φ _ref (λ) / Y _ref
ΔS (λ) = S _ref (λ) −S (λ)
And define
When the wavelength giving the longest wavelength maximum value of S (λ) is λ _R (nm) in the wavelength range of 380 nm to 780 nm,
When there is a wavelength Λ4 that is S (λ _R ) / 2 on the longer wavelength side than λ _{R, the} index A _cg represented by the following formula (1) satisfies −360 ≦ A _cg ≦ −10, ,
When there is no wavelength Λ4 that becomes S (λ _R ) / 2 on the longer wavelength side than λ _{R, the} index A _cg represented by the following formula (2) satisfies −360 ≦ A _cg ≦ −10.

A light emitting device according to claim 11, Φ _elm (λ) is 'meets, φ _SSL (λ) be the following condition 3' following condition 3 light emitting device, wherein the full-plus that the.
Condition 3 ′ :
CIE 1976 L ^* a ^* b ^* a ^* value in color space, b ^{* of the following} 15 types of modified Munsell color charts from # 01 to # 15 when the illumination by the spectral distribution of the target light is mathematically assumed
The values are a ^* _n and b ^* _n (where n is a natural number from 1 to 15),
CIE 1976 L ^{* of the} 15 types of modified Munsell color charts when mathematically assuming illumination with reference light selected according to the correlated color temperature T (K) of light emitted in the radiation direction
a ^{^{^*}} b ^* a ^* values in a color space, b ^* values of each a ^{^*} _{_nref,} b ^* _nref (where n is from 1 natural numbers 15) when the degree of saturation difference [Delta] C _n is -3.8 ≦ [Delta] C _n ≦ 18.6 (n is a natural number from 1 to 15)
The full-plus.
However, ΔC _n = √ {(a ^* _n ) ² + (b ^* _n ) ² } −√ {(a ^* _nref ) ² + (b ^* _nr
_ef ) ² }.
15 types of modified Munsell color chart # 01 7.5 P 4/10
# 02 10 PB 4/10
# 03 5 PB 4/12
# 04 7.5 B 5/10
# 05 10 BG 6/8
# 06 2.5 BG 6/10
# 07 2.5 G 6/12
# 08 7.5 GY 7/10
# 09 2.5 GY 8/10
# 10 5 Y 8.5 / 12
# 11 10 YR 7/12
# 12 5 YR 7/12
# 13 10 R 6/12
# 14 5 R 4/14
# 15 7.5 RP 4/1 2

  The light-emitting device according to claim 11 or 12, wherein Φ _ｅｌｍelm (Λ) satisfies both the following conditions 3 ″ and 4 and φ _ＳＳＬSSL (Λ) also satisfies the following condition 3 ″ and condition 4;
Condition 3 ″:
  The maximum value of the saturation difference is ΔC _ｍａｘmax , The minimum value of saturation difference is ΔC _ｍｉｎmin The difference between the maximum value of the saturation difference and the minimum value of the saturation difference | ΔC _ｍａｘmax -ΔC _ｍｉｎmin |
  2.8 ≤ | ΔC _ｍａｘmax -ΔC _ｍｉｎmin | ≦ 19.6
Meet.
Condition 4:
  CIE 1976 L of the above-mentioned 15 kinds of modified Munsell color charts when the illumination by the spectral distribution of the target light is mathematically assumed ^** a ^** b ^** The hue angle in the color space is θ _ｎn (Degree) (however, n
Is a natural number from 1 to 15)
  CIE 1976 L of the 15 types of modified Munsell color charts when the illumination with the reference light selected according to the correlated color temperature T (K) of the light emitted in the radiation direction is mathematically assumed. ^**
a ^** b ^** The hue angle in the color space is θ _{ｎｒｅｆnref} (Degree) (where n is a natural number from 1 to 15), the absolute value of the hue angle difference | Δh _ｎn |
  0 ≦ | Δh _ｎn | ≦ 9.0 (degrees) (n is a natural number from 1 to 15)
Meet.
  However, Δh _ｎn = Θ _ｎn −θ _{ｎｒｅｆnref} And

The light-emitting device according to claim 11, wherein Φ _ｅｌｍelm (Λ) satisfies the following condition 3 ′ ″, φ _ＳＳＬSSL (Λ) also satisfies the following condition 3 ′ ″.
Condition 3 ″ ″:
Average SAT of saturation difference represented by the following formula (3) _ａｖav Satisfies the following formula (4).

The light-emitting device according to claim 1 , 4, 8 or 11 ,
D _uv derived from the light-emitting derived from the spectral distribution of the light emitted in the main radiation direction from the element D _uv a D _{uv (Φ} _elm), the spectral distribution of the light emitted from the light-emitting device in the main radiation direction _Is defined as D _uv (φ _SSL ),
D _uv (φ _SSL ) <D _uv (Φ _elm )
A light emitting device characterized by satisfying the above.

The light-emitting device according to claim 4 or 11 ,
The A _cg derived from the spectral distribution of the light emitted from the light-emitting element in the principal radiating direction _{_{A cg (Φ elm), A}} cg derived from the spectral distribution of the light emitted from the light-emitting device in the main radiation direction _Is defined as A _cg (φ _SSL ),
A _cg (φ _SSL ) <A _cg (Φ _elm )
A light emitting device characterized by satisfying the above.

The light emitting device according to claim 3, 7, 10 or 14 ,
SAT _av (Φ _elm ), the average of the saturation differences derived from the spectral distribution of the light emitted from the light emitting element in the main radiation direction,
When the average of the saturation differences derived from the spectral distribution of light emitted in the main radiation direction from the light emitting device is defined as SAT _av (φ _SSL ),
SAT _av (Φ _elm ) <SAT _av (φ _SSL )
A light emitting device characterized by satisfying the above.

A light emitting device according to any one of claims 1 to 17, the light emitting device, wherein the control element is 380nm ≦ λ (nm) optical filter that absorbs or reflects ≦ 780 nm light.

The light-emitting device according to any one of claims 1 to 18 , wherein the control element has a function of condensing and / or diffusing light emitted from the light-emitting element.

20. The light emitting device according to claim 19 , wherein the condensing and / or diffusing function of the control element is realized by at least one function of a concave lens, a convex lens, and a Fresnel lens.

The light-emitting device according to any one of claims 1 to 20 ,
The light emitted from the light emitting device in the radiation direction has a radiation efficiency K (lm / W) in the range of 380 nm to 780 nm derived from the spectral distribution φ _SSL (λ), 180 (lm / W) ≦ K (Lm / W) ≦ 320 (lm / W)
A light emitting device characterized by satisfying the above.

A light emitting device according to any one of claims 1 to 21 correlated color temperature T as a light emitting device (K) is 2550 (K) ≦ T (K) ≦ 5650 (K)
A light emitting device characterized by satisfying the above.

The light-emitting device according to any one of claims 1 to 22 , wherein an illuminance at which light emitted from the light-emitting device in the radiation direction illuminates an object is 150 lx or more and 5000 lx or less. Light emitting device.

24. The light emitting device according to any one of claims 1 to 23 , wherein the light emitting device emits light emitted from one or more kinds of light emitting elements to six kinds or less in the radiation direction. .

A light emitting device according to any one of claims 1 to 24 said a semiconductor light-emitting 495nm less than the peak wavelength of the emission spectrum is more 380nm elements, and full width at half maximum is 2nm or 45nm or less A light emitting device characterized by the above.

26. The light emitting device according to claim 25 , wherein a peak wavelength of an emission spectrum of the semiconductor light emitting element is not less than 395 nm and less than 420 nm.

26. The light emitting device according to claim 25 , wherein a peak wavelength of an emission spectrum of the semiconductor light emitting element is 420 nm or more and less than 455 nm.

26. The light-emitting device according to claim 25 , wherein a peak wavelength of an emission spectrum of the semiconductor light-emitting element is not less than 455 nm and less than 485 nm.

A light emitting device according to any one of claims 1 to 24, wherein the peak wavelength of the emission spectrum of the semiconductor light emitting element is less than the above 495 nm 590 nm, and the full width at half maximum 2
A light emitting device having a thickness of greater than or equal to nm and less than or equal to 75 nm.

25. The light emitting device according to any one of claims 1 to 24 , wherein a peak wavelength of an emission spectrum of the semiconductor light emitting element is 590 nm or more and less than 780 nm, and a full width at half maximum is 2 nm or more and 30 nm or less. A light emitting device characterized by the above.

29. The light emitting device according to any one of claims 1 to 28, comprising a phosphor as a light emitting element.

32. The light emitting device according to claim 31, wherein the phosphor includes one or more and five or less phosphors having different emission spectra.

Or 31. A light emitting device according to 3 2, wherein the phosphor is a single 495nm less than the peak wavelength over 380nm in the emission spectrum in the case of photoexcitation at room temperature, and full width at half maximum 2nm or more 90nm A light-emitting device comprising the following phosphor.

34. The light emitting device according to claim 33, wherein the phosphor is a phosphor represented by the following general formula (5), a phosphor represented by the following general formula (5) ′, (Sr, Ba) ₃ MgSi. A light emitting device comprising at least one selected from the group consisting of ₂ O ₈ : Eu ²⁺ and (Ba, Sr, Ca, Mg) Si ₂ O ₂ N ₂ : Eu.
(Ba, Sr, Ca) MgAl ₁₀ O ₁₇ : Mn, Eu (5)
_{_{_{Sr a Ba b Eu x (PO}}} 4) c X d (5) '
(In the general formula (5) ′, X is Cl. Also, c, d and x are 2.7 ≦ c ≦ 3.3, 0.9 ≦ d ≦ 1.1, 0.3 ≦ x ≦. (In addition, a and b satisfy the condition of a + b = 5-x and 0 ≦ b / (a + b) ≦ 0.6.)

Or 31. A light emitting device according to 3 2, wherein the phosphor is a single 590nm less than the peak wavelength over 495nm in the emission spectrum in the case of photoexcitation at room temperature, and full width at half maximum 2nm or 130nm A light-emitting device comprising the following phosphor.

36. The light emitting device according to claim 35, wherein the phosphor is represented by the following general formula (6): Si _6-z Al _z O _z N _8-z : Eu (where 0 <z <4.2). A phosphor represented by the following general formula (6) ′, and at least one selected from the group consisting of SrGaS ₄ : Eu ²⁺ .
_{_{_{_{Ba a Ca b Sr c Mg d}}}} Eu x SiO 4 (6)
(In the general formula (6), a, b, c, d and x are a + b + c + d + x = 2, 1.0 ≦ a ≦ 2.0, 0 ≦ b <0.2, 0.2 ≦ c ≦ 1.0, 0 ≦ d <0.2
And 0 <x ≦ 0.5. )
Ba _1-xy Sr _x Eu _y Mg _1-z Mn _z Al ₁₀ O ₁₇ (6) ′
(In the general formula (6) ′, x, y, and z satisfy 0.1 ≦ x ≦ 0.4, 0.25 ≦ y ≦ 0.6, and 0.05 ≦ z ≦ 0.5, respectively.)

Or 31. A light emitting device according to 3 2, wherein the phosphor is a single 780nm less than the peak wavelength over 590nm in the emission spectrum in the case of photoexcitation at room temperature, and full width at half maximum 2nm or 130nm A light-emitting device comprising the following phosphor.

38. The light-emitting device according to claim 37, wherein the phosphor is represented by the following general formula (7), a phosphor represented by the following general formula (7) ′, (Sr, Ca, Ba) _{_{_{2 Al x Si 5-x O}}} x N 8-x: Eu ( provided that 0 ≦ x ≦ 2), Eu y (Sr, Ca, Ba) 1-y: Al 1 + x Si 4-x O x N 7- _x (provided that 0 ≦ x <4,0 ≦ y < 0.2), K 2 SiF 6: Mn 4+, A 2 + x M y Mn z F n (A
Is Na and / or K; M is Si and Al; −1 ≦ x ≦ 1 and 0.9 ≦ y + z ≦ 1.1 and 0.001 ≦ z ≦ 0.4 and 5 ≦ n ≦ 7), (Ca, Sr, Ba, Mg) AlSiN ₃ : Eu and / or (Ca, Sr, Ba) AlSiN ₃ : Eu and (CaAlSiN ₃ ) _1-x (Si ₂ N ₂ O) _x : Eu (where x is 0 < A light-emitting device comprising at least one selected from the group consisting of x <0.5).
_{_{(La 1-xy Eu x Ln}} y) 2 O 2 S (7)
(In the general formula (7), x and y represent numbers satisfying 0.02 ≦ x ≦ 0.50 and 0 ≦ y ≦ 0.50, respectively, and Ln represents Y, Gd, Lu, Sc, Sm and Er. Represents at least one trivalent rare earth element)
(K−x) MgO.xAF ₂ .GeO ₂ : yMn ⁴⁺ (7) ′
(In general formula (7) ′, k, x, and y represent numbers satisfying 2.8 ≦ k ≦ 5, 0.1 ≦ x ≦ 0.7, and 0.005 ≦ y ≦ 0.015, respectively. , A is calcium (Ca), strontium (Sr), barium (Ba), zinc (Zn), or a mixture thereof.