Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J61/00—Gas-discharge or vapour-discharge lamps
  • H01J61/02—Details
  • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
  • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
  • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J61/00—Gas-discharge or vapour-discharge lamps
  • H01J61/02—Details
  • H01J61/38—Devices for influencing the colour or wavelength of the light
  • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
  • H01J61/44—Devices characterised by the luminescent material

Definitions

• the present invention secures color reproducibility that enables categorical identification of red, green, blue, yellow, white, and black surface colors, which are the basic colors of human color category judgment. However, it relates to a highly efficient illumination light source.
• the present invention largely belongs to the following three technologies.
• the first is that, while ensuring color reproducibility that allows the classification of red, green, blue, yellow, white, and black surface colors at a minimum
• ⁇ It relates to fluorescent lamps, metal lamps, and ride lamps, which are highly efficient and efficient lighting sources.
• the present invention relates to fluorescent lamps and metal halide lamps that have a light color with little sense of discomfort.
• the third is that when used in combination with a conventional low color temperature light source, while ensuring color reproducibility that allows classification of red, green, blue, yellow, white, and black surface colors at a minimum.
• the present invention relates to fluorescent lamps and metal halide lamps, which are highly efficient illumination light sources that emit light with little discomfort and are equivalent to light bulb colors. Background art
• spectral characteristics are designed by evaluating the fidelity of subtle color reproduction with respect to a reference light source (black body thigh 'synthetic daylight) using an average color rendering index (R a). On the other hand, it was evaluated by applying and developing the characteristic '14 of color reproduction (categorical color perception) that humans distinguished color roughly, and the design of its spectral characteristics was There is a Japanese application (Japanese Patent Application No. 242863 (September 21, 1995)) and pcTZjpgszosei 8 that uses it as S3 ⁇ 4.
• Such a high-efficiency new light source that gives priority to the luminous efficiency of the light source while satisfying the minimum color appearance is often used mainly in the field of lighting. This is because outdoor lighting does not require the appearance of high-quality colors as indoor lighting does, and the luminous efficiency of the light source is mainly given priority.
• Another point of realizing the high-efficiency new light source is to design the shift (Duv) from the blackbody on the uv chromaticity coordinates to be 0 or more.
• the range in which the deviation (Du v) from the blackbody radiation locus is 0 or more indicates that the categorical color perception of the basic color can be performed with high efficiency. As long as the appearance can be maintained, Du V takes a positive value.
• the light color of light 3 ⁇ 4g is described in the national International standards include IEC (International Electrotechnical Commission) standards. Some countries in the world have their own standards. An example of this is the chromaticity classification standard for fluorescent lamps specified in JIS (Japanese Industrial Standards) in Japan.
• the IEC standard determines a center point near the blackbody radiation locus, determines the light color with its tolerance, and the JIS defines upper and lower limit lines near the blackbody radiation locus. This is a standard within the allowable range.
• the width of the IEC language range is 7.5 to 9.5 in the vertical direction of D uv, and the JIS tolerance range is 10 to 19 in the vertical direction.
• the conventional illumination light source actually provided light colors in the range of 5 to 10 to the positive side of DuV.
• the CIE signal light color is stipulated to explain the conventional use range of the light source light color as white from a different viewpoint.
• the signal light color is specified in a narrow range along the blackbody radiation trace. The plus side of DuV outside the white range has not been used as a so-called white light in the conventional illumination light source.
• 3 ⁇ 4 is an improvement in the sense of target brightness in scotopic vision and clear vision of the high-efficiency new light source.
• the first solution of the present invention is to design the spectral characteristics of the above-mentioned high-efficiency new light source by giving consideration to the influence of the rod and focusing on the condition of relatively low illuminance.
• the second problem to be solved by the present invention is to improve the natural brightness of a large field of view of Sukki's highly efficient new light source.
• illuminance and luminance are used as light measurement amounts corresponding to brightness, but the spectral characteristics of illuminance and luminance are based on the spectral characteristics of brightness in the 2 ['] field of view near the central force of the eye. Things.
• light is received not only from the area limited to the center but also from a larger field of view, so the correspondence between the actual brightness and the illuminance may differ depending on the spectral distribution of the light source ⁇
• the second solution to the above-mentioned high efficiency new light source is to set spectral characteristics to improve the natural brightness perception in a large visual field which is felt in an actual illumination field. Try to decide.
• a third problem to be solved by the present invention is to improve the white appearance of the emitted color of the high efficiency new light source.
• the high-efficiency new light source has high whiteness and a clear light color range.
• the present invention aims to enhance the white feeling of the high-efficiency new light source, Try to solve the third fi and.
• a fourth solution of the present invention is to give the high-efficiency new light source a light color appearance as a light bulb color.
• an illumination light source of the present invention solves the following 1111 in order to improve the sense of brightness in mesopic and local vision of the high efficiency new light source, and to improve the sense of brightness in a large visual field. Have means to do so.
• the present invention according to claim 1 is a fluorescent lamp for perceiving color in the category power, wherein the main light is emitted, and the peak wavelength of the emitted light is in the range of 530 to 580 [nm] and 600 to 65. 0 [nm], and the luminous flux of the phosphor having an emission wavelength peak range of 420 to 530 [nm] is converted to the total luminous flux of the main emission wavelength range.
• the peak wavelength of the phosphor having an emission wavelength peak range of 420 to 530 [nm] is converted to the total luminous flux of the main emission wavelength range.
• it is 4 to 40%
• the correlated color temperature of the lamp light color is 3500 to ⁇ [K]
• ⁇ 1 in sighted and mesopic or large field of view 3 ⁇ 41 While increasing the efficiency, at least the categorical red, green, blue, yellow, and white colors of the surface color of the illuminated object! ⁇
• the present invention according to claim 2 is a fluorescent lamp for categorical color perception, wherein the main light is emitted, and the peak wavelength of the emitted light is in the range of 530 to 580 [nm] and 600 to 650. [nm], and the emission wavelength peak ranges from 470 to 530 [nm].
• the luminous flux of the phosphor in the range of the light wavelength is 4 to 40% of the total luminous flux in the range of the main emission wavelength, and the correlated color of the lamp light color is 3500 to ⁇ [K], and Duv (distance rrom perfect radiator ator).
• ocus on uv co-ordinates It is characterized by a power of 5 to 70, and at least the red color of the surface of the illuminated object while increasing the efficiency in sighted and mesopic or large fields of view.
• This is a fluorescent lamp that has a categorical translation of green, blue, yellow, and white colors.
• the present invention according to claim 3 is a fluorescent lamp for categorical color perception, wherein the emission wavelength has a peak range of 420 to 530 [nm], 530 to 580 [nm], and 600 to 650 [nm]. It has a light color in the range of y 0.43 x +0.60, y> 0.64 x +0.15, x> 0.16 in the xy chromaticity coordinates. At least red, green, blue, yellow, and white surface colors of the illuminated object can be categorically distinguished while increasing luminous efficiency in scotopic vision, mesopic vision, or large fields of view.
• This is a fluorescent lamp in which the number of pastes is as follows.
• the present invention according to claim 4 is a fluorescent lamp for color perception of category power, wherein the peak range of the emission wavelength is 470 to 530 [nm:], 530 to 580 [nm], 600 to 650 [nm]. ran], the x-y chromaticity coordinates, and y x 0.43 x + 0.60, y> 0.64 x + 0.15, x> 0.16 It is characterized by having a light color in a range surrounded by a range, and increasing the luminous efficiency in scotopic vision and mesopic vision, or in a large field of view, and at least the surface colors of the object to be illuminated red, green, blue, This fluorescent lamp is characterized by its ability to categorize yellow and white colors.
• the present invention according to claim 5 provides a main phosphor, wherein the phosphor having an emission wavelength peak range of 530 to 580 [nm] activates terbium, or tenorebium and cerium.
• the phosphor of 600-650 [nra] is europium or a phosphor activated with a gun, and has an emission peak wavelength of 420-530 [nra].
• Phosphors and phosphors with emission peak wavelengths between 470 and 530 [nm] are activated by europium, or europium and manganese, or antimony, or manganese, or antimony and manganese
• the fluorescent lamp according to any one of claims 1 to 4, wherein the fluorescent lamp is a phosphor.
• the phosphors having the emission wavelength peak ranges from 530 to 580 [ ⁇ ] and from 600 to 650 [nm] are represented by (Ce, Gd, Tb) (Mg, Mn) and B 5 0 1 (), ( Ce, Gd)
• the present invention according to claim 7 is a phosphor having an emission peak wavelength of 420 to 530 [nm], a phosphor having an emission peak wavelength of 470 to 50 [nm] is haloline,
• phosphor emission peak wavelength is present in the 4 2 0 ⁇ 5 3 0 [nm] is, BaMgAl I (p 17:. Eu, or, (Sr, Ca, Ba) , (P0 (4 )
• phosphor emission peak wavelength ⁇ to 4 7 0 ⁇ 5 3 0 [nm] is Sr 4 Al 14 0 25: Eu, or 7.
• the present invention according to claim 10 is characterized in that a fluorescent light having an emission peak wavelength in the range of 420 to 470 [nm].
• a fluorescent light having an emission peak wavelength in the range of 420 to 470 [nm].
• the number of glues is such that a light body and a phosphor having a wavelength of 470 to 530 [nm] are simultaneously present.
• the phosphor having an emission peak wavelength of 420 to 470 [nm] and the phosphor having an emission peak wavelength of 470 to 530 [nm] are (Ba, 10.
• the illumination light source of the present invention has means for solving the following problems in order to improve the white appearance of the emitted light color when the high efficiency new light source is used in combination with the conventional high color light source. .
• the present invention according to claim 12 is a fluorescent lamp for categorical color perception, wherein the main light is emitted, and the emission wavelength peak ranges from 530 to 580 [nm] and 600 to A phosphor having a peak of the emission wavelength in the range of 420 to 470 [ran] as a secondary emission wavelength, and having a correlated color temperature of at least 3 5 0 0 to ⁇ [K], force, tsu, D uv (distance from perfect radiator locus on uv co-ordinates) is in the range of 5 to 70, and the relationship between x and y on the xy chromaticity coordinates Is in the range 0.43 X +0.60,
• This fluorescent lamp is characterized by being able to at least categorically identify the red, green, blue, yellow, and white colors of the surface of the illuminated object while enhancing the whiteness of the emitted color.
• the relationship between x and y is within the range of 0.43 x +0.60, and while increasing the whiteness of the emission color, at least the surface colors of the illuminated object are red, green, and blue.
• This is a fluorescent lamp characterized in that categorical identification of yellow, white and yellow colors
• the present invention according to claim 14 is a fluorescent lamp for categorical color perception, which is obtained by a phosphor having a main light emission whose emission wavelength peak ranges from 530 to 580 [ran].
• Xy chromaticity coordinates (x, y) a: (0.228, 0.351), b: (0 358, 0.551), c: (0 525) , 0.440), d: (0.53, 0.440), e: (0.285, 0.332)
• the relationship between X and y is y x 0.43 X +0.60 that the categorical identification of the red, green, blue, yellow, and white colors of the surface color of the illuminated object is possible while increasing the whiteness of the emission color.
• This is a characteristic fluorescent lamp.
• the invention according to claim 15 is characterized in that a luminous flux emitted from a phosphor having an emission peak at an auxiliary emission wavelength of 420 to 47 [ran] and a main emission wavelength of 5330 to 580 [ran]
• the ratio [%] to the luminous flux emitted from the phosphor having an emission peak is B: G, B is 4 to 11 [%], and G is 96 to 89 [%].
• the present invention according to claim 16 has an emission peak at an emission wavelength of 600 to 600 [nm].
• the present invention according to claim 17 is a phosphor activated with europium and a phosphor having an emission wavelength peak of 420 to 470 [nm], and an emission wavelength peak of 530 to 580 [nm].
• the phosphor at [nm] is terbium, or a phosphor activated with terbium and cerium.
• the phosphor with an emission wavelength peak at 600-650 [ ⁇ ] is manganese or europium.
• the present invention according to claim 18 is characterized in that the phosphor comprises a terbium-activated phosphor whose peak emission wavelength is in the range of 530 to 580 [nm], and a haloline ⁇ 3 ⁇ 4 phosphor.
• the fluorescent lamp according to claim 14 characterized by the above-mentioned.
• the present invention according to claim 19 is characterized in that the phosphors having emission wavelength peak ranges of 530 to 580 [nm] and 600 to 650 [nm] are represented by (Ce, Gd, Tb) ( mg, Mn) B and 5 0 10, (Ce, Gd ) (mg, Mn) B 5 0 10 , characterized in that is realized by a phosphor which is constituted by claim 1 2 to 1 7 noise Re A fluorescent lamp as described in
• the phosphor having an emission peak wavelength in the range of 420 to 47 [nm] is BaMgAl 1 () 0
• the high efficiency new light source is mixed with the conventional low color light source, and the illumination light source of the present invention has the following problems in order to improve the sense of incongruity of the emitted light color as a bulb color. Is provided.
• this fluorescent lamp uses a glue number that allows categorical identification of red, green, blue, yellow, and white colors of the surface color of the illuminated object.
• the present invention according to claim 22 is a fluorescent lamp for categorical color perception, wherein the main light is emitted, and the emission wavelength peak ranges from 530 to 580 [nm] and 600 to Obtained with a phosphor at 650 [nm],
• the fluorescent lamp is characterized by being in a range excluding the fluorescent lamp, and at least being capable of categorically discriminating red, green, blue, yellow, and white colors of the surface color of the illuminated object.
• the present invention according to claim 23 provides a fluorescent lamp obtained from a phosphor having a main emission wavelength of 530 to 560 nm and an emission peak wavelength of 600 to 650 nm, wherein the fluorescent lamp has a peak wavelength of 530 to 560 nm.
• the present invention according to claim 24 provides a fluorescent lamp obtained from a phosphor having a main emission wavelength of 530 to 560 nm and an emission peak wavelength of 600 to 620 nm, wherein the auxiliary emission wavelength has an emission peak of 420 to 530 nm.
• the phosphor having an emission wavelength peak range of 530 to 580 [ran] is terbium or a phosphor obtained by activating terbium and cerium, and has a fluorescence of 600 to 650 [nm].
• the present invention according to claim 26 is characterized in that the peak range of the emission wavelength is 530 to 580 [nm] and The phosphor of 600 ⁇ 650 [nm], (Ce , Gd, Tb) (Mg, Mn) and B B 0 10, (Ce, Gd) (Mg, Mn) realized in one phosphor configured in BO ln
• the invention according to claim 27 is characterized in that it is used for outdoor lighting, road lighting, street lighting, safety light, vehicle lighting, tunnel lighting, plaza lighting, garage lighting, warehouse lighting, or factory lighting.
• 27. A fluorescent lamp according to any one of 1 to 26.
• the illumination light source of the present invention has means for solving the following problems.
• a twenty-eighth aspect of the present invention is a methanol lamp having the same light color and emission spectrum as the fluorescent lamp of the present invention. You.
• the present invention according to claim 29 is characterized in that it is used for outdoor lighting, road lighting, street lighting, safety light, vehicle lighting, tunnel lighting, plaza lighting, garage lighting, warehouse lighting, or factory lighting. It is a metal halide lamp described. Brief explanation of drawings
• FIG. 1 is a graph showing the spectral distribution of a typical embodiment of the fluorescent lamp of the present invention.
• FIG. 2 and 3 show a comparison of various relative luminous sensitivities in which relative luminous efficiency is made relative to a peak height of 1.
• Fig. 5 is a diagram showing the relative spectral sensitivities of the three types of cones of the eye (S cone, M cone, and L cone) and the rod's spectral sensitivity, with the peak as 1.
• FIG. 6 is a diagram showing the range on the xy chromaticity coordinates of the fluorescent lamp of the present invention (claims 3 and 4).
• FIG. 7 is a diagram showing the theoretical efficiency of light on the xy chromaticity coordinates.
• FIG. 8 is a diagram showing a correction factor F of luminance on the XY chromaticity coordinates.
• FIG. 9 is a diagram showing the positions on the unique color tone storage.
• 12 to 16 are diagrams showing the spectral distributions of the light sources (1f) to (1j) which are the examples in the 20 W fluorescent lamp.
• FIG. 17 is a spectral distribution diagram when a high-efficiency new light source is realized by a fluorescent lamp.
• FIG. 19 is a diagram showing 21 types of light colors from tl to t21 on XY chromaticity coordinates.
• FIG. 20 is a diagram showing, for each xy chromaticity point of each test light source, the percentage of respondents that the color is acceptable as a light bulb color.
• FIG. 21 f is a diagram showing the relationship between the lv range of claim 21 of the invention and the curve 23.
• FIG. 22 is a diagram showing a range of light colors of a fluorescent lamp of JIS as a comparative example for reference.
• FIG. 23 to FIG. 26 are diagrams showing the spectral distributions of the fluorescent lamp examples when the luminous flux ratio of LAP: YOX is changed.
• FIG. 27 is a diagram showing a spectral distribution of a fluorescent lamp as another embodiment of the present invention.
• FIG. 28 is a diagram showing the relationship between the value of V '( ⁇ ) ⁇ (e) and the various light sources.
• FIG. 29 is a diagram showing the relationship between the value of V10 (E) V ( ⁇ ) and the various light sources.
• the new high-efficiency light source assures color reproducibility that allows the classification of the red, green, blue, yellow, white, and black surface colors by concentrating light emission mainly in the green and red wavelength bands.
• luminescence in the blue or blue-green wavelength band is added to achieve a scotopic vision and a mesopic vision.
• the aim is to improve the sense of brightness in the target and the sense of neat brightness in a large field of view.
• FIG. 1 a typical embodiment of the fluorescent lamp of the present invention is shown in FIG. 1
• the solid line 1 in FIG. 1 is the spectral distribution when the present invention is implemented by a fluorescent lamp
• the spring 2 is the spectral distribution of ⁇ when the high-efficiency new light source is implemented by a fluorescent lamp.
• the response characteristic of the brightness of the light depends on the spectrum, and is called a ratio or a ratio function.
• the brightness of lighting is evaluated by the standard photopic visibility function (hereinafter ⁇ ( ⁇ )) defined by the CIE (International Commission on Illumination). This reflects the condition in which the eyes are used to the bright spot, that is, the brightness sensitivity characteristics of the cone photoreceptors in photopic vision. It is known that the center of sensitivity is at 5.55 [nm], and ordinary illumination light sources are evaluated based on the efficiency of the spectral characteristics with respect to ⁇ ( ⁇ ).
• V '(e) parallax luminosity function
• mesopic vision which is a state of brightness intermediate between photopic vision and ⁇ photopic vision, has an intermediate ratio characteristic between these. These characteristics change depending on the adaptation of the environment's brightness to the eye. I do.
• V (e) is ⁇ 2 ( ⁇ ), which is based on the 2 ⁇ ] degree field of view, which is the range of central vision depending on whether the center has high visual acuity, but the 10 ['] degree field of view is much larger.
• ⁇ 10 ( ⁇ ) is composed of. This is recommended as "CII Publication 1964" (CI ⁇ 1964 supplementary colorimetric standard system).
• ⁇ 1 () (; ⁇ ) reflects the actual situation in evaluating the sense of brightness from such a large visual dimension.
• the cone has an S (blue) cone that is sensitive to short wavelengths, an L (red) cone that is sensitive to long wavelengths, and an M (green) cone in between, but S near the central force
• S blue
• L red
• M green
• the number of cones is small, and the number of S cones around the center is large. Therefore, the visual dimension is large, and the result is that the sensitivity to blue is higher.
• V '( ⁇ ) itself is a ratio composed of points off the center.
• the blue or blue-green band is important for correcting the brightness of the light source assuming use at illuminance, and for correcting the sense of brightness due to light coming into view from a large field of view in a real environment. It has a meaning.
• CIE Publication No. 75 This is a direct extraction of the sense of visual brightness, and is described in “CIE Publication No. 75” (CIE Publication No. 75: Spectral luminous efficiency functions based upon brightness mac mg for monochromatic point sources). 2 "and 10 ° fields (1988)), which are called 2 [for those with a field of view of (°) and those with a field of view of 10 ° which are called V M0 (E). A color that responds well to the direct brightness sensitivity but draws a smooth profile.
• V 10 ( ⁇ ), V M ( ⁇ ), V ′ ( ⁇ ), V b , 2 (), V b ,,. (L) is considered as an auxiliary brightness photometric light, although it better reflects the actual situation with respect to V (or), depending on the time and the case. Hffi and not used for development. However, in view of the actual situation, it is possible to increase the visual and effective brightness of the high-efficiency new light source, which is characterized by being used at relatively low illuminance. is there.
• Figures 2 and 3 compare these relative luminous sensitivities with these ratios being relative to each other with the peak height being 1.
• Figure 2 shows V (e), ⁇ 10 ( ⁇ ), ⁇ ⁇ ( ⁇ ), and ⁇ '( ⁇ ).
• Figure 3 shows V h2 U) and V hl, which differ in the method of deriving phycophysical for ⁇ ( ⁇ ). (; L), and ⁇ ( ⁇ ) for reference.
• V ′ (e) and ⁇ ( ⁇ ) are shown as differences in various relative luminous efficiencies.
• the peak of the difference between VwoU) and V z (also) is 500 [nra], the range within a peak ratio of 50 [%] is 460 to 520 [nm], and the range of a peak ratio within 80 [%] is 480 to 505 [%]. nm].
• the peak of the difference between V ( ⁇ ) and ⁇ ( ⁇ ) is 490 [nra], the range within a peak ratio of 50 [%] is 445 to 515 [nm], and the range within a peak ratio of 80 [%] is 470 to 505 [nm].
• V t ⁇ ( ⁇ ) and V ( ⁇ ) The difference between the peaks of V t ⁇ ( ⁇ ) and V ( ⁇ ) is 500 [nm], the peak ratio of 50 [%] or less is 450-520 [nm], and the peak ratio is 80 [%] or less. 475 to 510 [nm].
• the maximum range of 420 to 530 [nm] is the range to be eff! E.
• the present invention is based on this range.
• VM (also) is the correction of the blue band of 455 [ran] or less mainly related to the S cone, and many corrections on the short wavelength side of visible light have absolutely small original sensitivities.
• the maximum effect within the peak ratio of 80 [%] other than the difference between M (E) and V ( ⁇ ) is within the range of 470 to 530 [nm].
• Fig. 5 shows the basic spectral sensitivities of the three types of cones of the eye (S-cone, M-cone, and L-cone) and the basic spectral sensitivities of the rods, with the peak being set to 1 and shown relative to each other.
• the rods that work in mesopic and stereopsis have a peak in spectral sensitivity between the S and M cones.
• general illumination light sources aim to pierce three types of cones (S cone, M cone, and L cone) that work in photopic vision. By concentrating luminescence mainly in the green and red bands, it stimulates mainly two types of cones (M cone and L cone), and stabs mainly in the visual r-g opponent color response system. That is the thing to do.
• the conventional illumination light source is assumed to be used for photopic vision, so the power that did not take into account the spectral sensitivity of the rod was included in the present invention.
• the improvement in the sense of visual brightness is mainly based on the fact that two types of cones (M cone and L cone) and a rod are stabbed, and the S cone that contributes little to the brightness sensation
• M cone and L cone two types of cones
• S cone that contributes little to the brightness sensation
• the density of S cones is high around the central force of the retina, the larger the visual size, the higher the sensitivity of the S cones.
• the ⁇ ⁇ The improvement in perceived brightness can be achieved mainly by increasing the degree of stabbing the S cones distributed around the center of the retina.
• the emission wavelength emitted by the high-efficiency new light source should be concentrated in the blue band of 420 to 470 [nm].
• ⁇ ⁇ ⁇ ⁇ At least categorical delicate red, green, blue, yellow, and white colors of the surface of the object can be achieved while increasing the visual efficiency in visual and mesopic or large visual fields.
• the correlated color temperature of the lamp light color must be set high, and the value of correlated color, which is a common light source light color vote, must be 3500 [K] or more for ⁇ .
• FIG. 6 shows the range on the xy chromaticity coordinates of the fluorescent lamp of the present invention (claims 3 and 4).
• the y-axis of Fig. 6 is 0.34 x + 0.60
• the y of 0.6 in Fig. 6 is 0.64x + 0.15
• the x of 5 in Fig. 6 is 0.
• the power realized by having a light color within the range of the 16 xy chromaticity ranges The rationale is given below.
• the present invention shows that the DUV is on the plus side of the light generally used as white in 6 of FIG. 6, and that it is in the range of conventional illumination light.
• the range y ⁇ -0.43 x + 0.60 is based on the high efficiency new light source whose emission is concentrated mainly in the green and red bands by visual experiment, and the emission peak wavelength is 420 to 5 3 0 [nm] This is the result of adding the existing phosphor or the phosphor present in the range of 470 to 530 [ran] to obtain the point at which the tint is reduced.
• Representative examples include the experiment, first, common as phosphor green emission (I arsenate 1) L a P0 4: C e, and Tb (LAP), common as red phosphor emitting (I 2) Y 2 ⁇ 3 : A light source that mixes the light emitted from two fluorescent lamps, each coated with Eu (YOX) alone, to a high efficiency new light source that concentrates light emission mainly in the green and red bands. Was set as a sample. Next, the light of this light source has an emission peak wavelength of 4
• Figure 6 shows the experimental results. Furthermore, the positions of the light colors of the fluorescent lamps using the phosphor alone on the Xy chromaticity coordinates are shown as 7 in the figure, LAP, 8 as YOX, 9 as SCA, and 10 as SAE. Was.
• reference numerals 11 and 12 denote green and red light-emitting elements (i-dani 1) and the red-light (i-dani 1), which are the high-efficiency new light source samples.
• a plot of the results, 14 is a plot of the results of a similar subjective evaluation experiment performed with a light mixing ratio of LAP: YOX-85: 15, and 15 is a similar subjective evaluation experiment performed with a light mixing ratio of LAP: YOX-80. : The results obtained in step 20 are plotted.
• 16 in FIG. 6 shows that the light mixing ratio of the sample is LP A (green): YOX
• (1) is that the yellow-green color of the high efficiency new light source increases the emission in the blue or blue-green band.
• the boundary changes to a bluish green light color, that is, a boundary where the senses of the opposite colors of bluish and yellowish colors cancel each other out and the color begins to decrease.
• the range of x> 0.16 indicates the permissible limit of the tint strength in the blue or blue-green direction.
• 9 and 10 in Fig. 6 are the positions on the chromaticity diagram of the fluorescent lamp realized by using the phosphors of (Chem. 3) and (Chem. 4).
• the above-mentioned x> 0.16 is realized so as not to take in the chromaticity 9 and 10.
• Increasing the emission in the blue or blue-green band can increase the proportion contributing to improved luminous efficiency in stereopsis and mesopic vision, or in a large field of view at equal illuminance (equal luminous flux).
• the increase in light emission in this band essentially leads to a decrease in the efficiency of the light source at the measured light intensity V (e).
• the increase in the light emission in these bands causes the light emission in the red band to be relatively weakened, thereby obscuring the appearance of red, which is used for important purposes such as danger indication.
• the quantity of light and the photometric quantity of the illumination are related via ⁇ ( ⁇ ), and the mono-color light at the peak of V (also) 3 [lm / W].
• the light other than 55 5 [nm] has a value smaller than 68 3 [lra / W], but this relationship is shown in the chromaticity coordinates. The theoretical efficiency.
• Figure 9 shows the position of the unique color on the start / record *.
• New color refers to a light stimulus with a wavelength that gives a color sensation of pure red, green, blue, and yellow stimuli when only a single spectrum of light wavelengths is extracted and viewed.
• Figure 9 shows the connection between the red, green, blue, and yellow colors and the equal energy white W.
• Theoretically, unique yellow, unique green, and iso-energetic white The light color in the xy chromaticity coordinates surrounded by W has a yellowish and greenish tinge, and is separated from white by a bell-shaped monochromatic (mono) -color) The closer to the position of the light, the stronger the color.
• the light emitting part of the luminaire has an old impression with a light color that feels yellowish. Light color is preferred.
• the line (LN) is similar to the above-mentioned subjective evaluation experiment line (Equation (1)), and it can be inferred that the result of the subjective f3 ⁇ 4B experiment is supported by such a theory. It is probable that yellowish and blueish 3 ⁇ 43 ⁇ 4 ⁇ occurred when the ratio of exceeded a certain amount for the stimulation of the M and L cones.
• the light source of the present invention as a fluorescent lamp and using a rare-earth phosphor, it becomes possible to concentrate light emission narrowly in a predetermined wavelength band.
• a phosphor having a peak emission wavelength range of 530 to 580 [ran] that obtains main light emission is terbium or a phosphor activated by terbium and cerium
• the phosphor of 600 to 65 0 [ ⁇ ] is a phosphor activated with europium or manganese, and has a light emission peak wavelength of 420 to 530 [hex], and Fluorescence with emission peak wavelength between 470 and 530 [nm]
• the body is a phosphor activated with europium, or europium and manganese, or antimony, or manganese, or antimony and manganese.
• phosphor in a range of peak emission wavelength is 53 0 ⁇ 580 [ran] is (I spoon 1) LaP0 4: Ce, Tb , ( of 5) Ce Gal H 0 19: Tb, (of 6) (Ce, Gd) MgB 5 0 10: Tb, or (reduction 7) LaA'O.2Si0 2 '0.9P z 0 5: Ce, there is Tb, 60 0 ⁇ 650 [ phosphor nm] is (I spoon 2) Y 2 0 3: Eu , or (I spoon 8) (YGd) 2 0 3 : Eu Ru der.
• These main emission wavelength phosphors are disclosed in PCT / JP96 / 02618: Right Source.
• the phosphor having a peak wavelength of 420 to 470 [nm] is (Chemical Formula 9) BaMgAl 1Q 0 17 : Eu or (Idani 3) ⁇ ! Duru. Many of these phosphors can be considered to have similar constitutions, but within the scope of the present invention, Mg was added.
• a phosphor having an emission peak wavelength in the range of 470 to 530 [nm] is (Dani 4) Or (Ig 11) Ce (Mg, Zn) Al u O ig : n.
• a phosphor layer By forming a phosphor layer using two phosphors having emission peak wavelengths of 420 to 470 [nra] and 470 to 530 [nm] at the same time, light emission of 420 to 530 [nm] can be realized. In addition, it is possible to simultaneously improve the brightness of the target in a ⁇ , ⁇ , ⁇ , ⁇ , and a large field of vision, and efficiently improve the white sensation.
• Examples of other phosphors that emit light of 420 to 530 [nm] include:
• the scope of the present invention also includes BaMgAl 1Q 0 17 : Eu, n in which the addition of Sr is eliminated. If the concentration of Eu in the activator is increased, 4 The emission of 20 to 470 [nm] is enhanced, and if the concentration of Mn in the activator is increased,
• the emission ratio of 420 to 4 nm 0 [nm] and 470 to 530 [nm] can be set with this single phosphor, making it easy to set the color tone in lamp production and suppressing color unevenness.
• the phosphor in the range of peak emission wavelength is 5 3 0 ⁇ 5 8 0 [nm ] ( I spoon 1 4) (Ce, Gd, Tb) (Mg, Mn) B 5 0 10, 6 0 0 ⁇ 6 5 0 [nm] phosphor (I-Dai 15) (CeiGiD
• the base material of the phosphors can be made the same, and the emission ratio of 530 to 580 [nm] and 600 to 650 [nm] can be set with one phosphor. Unevenness is suppressed.
• the phosphor having an emission peak wavelength in the range of 420 to 530 [] is a halophosphate calcium phosphor ( ⁇ 16) Ca PO ⁇ Cl ⁇ Sb, ⁇ , so that the fluorescent lamp of the present invention can be manufactured at low cost. It can be manufactured.
• n of the activator is yellow and Sb of the activator has an emission peak in bluish green, so that increasing the concentration of Sb increases light in the bluish green band.
• the claims of the present invention include a case where Mn is eliminated, and in this case, a single-peak light emission having a blue-white light color is obtained.
• the color of the light emitted from the high-efficiency new light source is reduced to enhance the white color.
• the main emission wavelength range of 530 to 580 [nm] and 600 to 650 [ran] is increased. [nm] while minimizing the addition of light other than [nm] Is reduced to enhance the white appearance. Therefore, unlike the first embodiment of the present invention, light emission is mainly added to wavelengths in the blue band in the range of 420 to 470 [nm]. Further, the specific embodiment of the phosphor conforms to the first embodiment.
• the wavelength of the light emitted from the light source can be greatly changed with a minimum amount of sub-emission by increasing the spectrum on the shorter wavelength side than in the first embodiment. It is.
• the subjects were four adults with normal color vision, and the number of repetitions of one condition was set to three.
• the xy chromaticity value, correlated color, and Du V (Table 1) at this time are shown.
• FIG. 11 also shows the chromaticity values (x, y) of claims 13 and 14 for comparison: a: (0.228, 0.351), b: (0.358, 0.551), c: (0.525, 0.440) , D: (0.453, 0.440), e: (0.285, 0.332)
• the fluorescent lamp of the present invention By setting the fluorescent lamp of the present invention within a range of y ⁇ 0.43 x + 0.60 or less in FIG. 11, it is possible to realize a fluorescent lamp with little light color and a white appearance. .
• the light sources corresponding to the light sources (1a) to (l'e) in Table 2 were actually prototyped as 20W fluorescent lamps.
• the ratio, xy chromaticity value, correlated color, and Duv are shown in Table 3 as light source (1f) to light source (1j).
• FIG. 12 to FIG. 16 show the spectral distributions of the light sources U f) to (l j), which are embodiments of the 2OW fluorescent lamp.
• spectral distributions are compared with the embodiment in which a high-efficiency new light source having the spectral distribution shown in FIG. 17 is realized by a fluorescent lamp, and the emission peak is in the wavelength band of 420 to 470 [nm].
• the relative spectral power of the phosphor having a dark spot increases, and by adding this wavelength band, the color can be reduced and the white color can be enhanced.
• Table 4 shows the LAP of the light sources (1a) to (1e) based on the light mixing ratio of the fluorescent lamp with three single phosphors in Table 2 based on the luminous flux ratio.
• the light mixing ratio of only SCA is shown by the luminous flux ratio. From this, almost all the light mixing ratio [%] of LAP and SCA is 96: 4.
• chromaticity points (0.285, 0.332) that constitute the chromaticity range of the present invention are the points closest to the blue side, and are the points where the light mixing ratio of SCA becomes maximum.
• the luminous flux ratio [%] of LAP, YOX and SCA at that chromaticity point is calculated from the chromaticity value of a single-color fluorescent lamp having three types of single phosphors to be mixed, based on the additive color mixing formula. Then 81: 9: 10. In this case, the light mixing ratio [%] of only LAP and SCA is 89:11.
• the light mixing ratio of a phosphor having an emission wavelength peak of 420 to 470 [nm] such as SC A and a phosphor having an emission wavelength peak of 530 to 580 [ran] such as LAP [° / o] B By setting G to 4 to 11 [%] and G to 96 to 89 [%] in G, it is possible to realize a fluorescent lamp with little light color and a white appearance.
• the light mixing ratio M of LAP, YOX and SCA at this intersection is 70: 28: 2, calculated based on the additive color mixing formula.
• the luminous flux R emitted from a phosphor having an emission peak at an emission wavelength of 600 to 650 [nm], such as YOX is compared with the luminous flux emitted from a phosphor such as SCA having an emission wavelength of 420 to 470 [nra].
• the light flux ratio [%] of the sum B ⁇ with the light flux emitted from a phosphor such as LAP having an emission peak at 530 to 580 [nm] is R :, R is 0 to 28 [%], and B " ⁇ is By setting it to 100 to 72 [%], the color of light color is reduced and white It can be realized with high efficiency while obtaining the category Kano perception.
• d (0.453, 0.30), e: (0.285, 0.332)
• the light source 26 By combining the light source 26 with the light sources (1127 to (1111) 29 and the shifter) and mixing the light, the dotted lines (1) 30, (2) 31, and (3) 32 X A light source having y chromaticity can be created, and a light source having a chromaticity range of 25 according to the present invention can be realized.
• the light sources (1f) to (lj) of the embodiment will be described.
• Table 5 compares the lamp efficiencies of the new fluorescent lamp with the indicated spectral distribution, the white fluorescent lamp of the conventional halophosphate phosphor, and the daylight fluorescent lamp of the three-band emission type.
• the lamp efficiencies of the light sources (1f) to (lj) are improved by about 24 to 43% compared to the white fluorescent lamp of the conventional halophosphate phosphor.
• the efficiency of fluorescent lamps can be improved by about 10-35%.
• a light color image equivalent to a bulb color is given to the light emission color of the high efficiency new light source.
• the specific embodiment of the phosphor conforms to the first embodiment.
• the embodiment of the present invention has been realized based on experimental data in which a subjective evaluation was made as to whether or not the light color of a light source was acceptable as a light bulb color.
• the test stimulus was made to be able to randomly present 21 types of light colors from t1 to t21 shown in FIG.
• Each test stimulus (I spoon 1) LaP z 0 4: Ce , a fluorescent lamp of green-emitting phosphor of the Tb (LAP), (I spoon 2) Y 2 0 3: red light emitting phosphor of Eu
• the fluorescent lamp (YOX), the fluorescent lamp (SCA) that emits blue light from the phosphor of (Shi 3) (Sr, Ba, Ca) 10 (PO 4 ) 6 Cl z : Eu, and the emission peak wavelength 580 [ran] and xy chromaticity values (0.515, 0.472) were set by changing the mixing ratio of a fluorescent lamp that emits pure yellow light and.
• the characteristics of each test stimulus are shown in (Table 6).
• test stimulus was randomly presented to the subject, As a result, the light color of the test stimulus was evaluated as "an alternative to the power that can be accepted as the bulb color.”
• the brightness of each light-emitting part was set to 300 O cd / m 2 and 300 O cd / m 2 , but as a result of the experiment, there was no difference in the evaluation of light color between the two types of brightness. It wasn't.
• Fig. 20 shows the percentage of respondents who answered that the lamp color is acceptable as a decimal point for each xy chromaticity point of each test light source.
• Curve 23 is a regression curve with a 50% tolerance probability that the majority is acceptable as bulb color. In other words, the range within the curve 23 is the range of light colors for which the majority is acceptable as the bulb color.
• the above l to v ranges indicate the range of light colors of conventional lamps obtained by the JIS method in which limit lines are defined above and below the vicinity of the blackbody radiation locus, and the limit lines are defined as allowable ranges.
• the chromaticity classification of fluorescent lamps specified by IEC is included in this range.
• the present invention of claim 22 is a range in which the range of 1 to v is excluded from the curve 23. '
• This figure shows the change in fe3 ⁇ 4 when the luminous flux ratio of LAP: YOX is changed for a fluorescent lamp composed of only ⁇ and ⁇ .
• FIG. 22 shows the relationship between the chromaticity of 1 to v of claim 21 of the present invention and the range of light colors of the JIS fluorescent lamp.
• Fig. 22 29 is white, 30 is warm white, and 31 is the chromaticity range of the fluorescent lamp of bulb color. From the figure, it can be seen that the vertices other than the lower left of the chromaticity range of white correspond to 1 to V.
• FIGS. 23 to 26 show the spectral distribution of the embodiment of the fluorescent lamp in which the luminous flux ratio of LAP: YOX is changed.
• the efficiency can be improved by 10% while reducing the number of phosphors compared to the conventional three-wavelength-band fluorescent lamp color. Can be.
• the Xy chromaticity value of the fluorescent lamp is (0.4315, 0.4334), the correlated color temperature is 3 3 17 K, 011 ⁇ is 12.3, and by adding secondary emission in addition to the main emission wavelength, This is an embodiment capable of producing an arbitrary light color within the chromaticity ranges of claims 21 and 22 of the present invention.
• the first is to ensure color reproducibility that allows classification of red, green, blue, yellow, white, and black surface colors at a minimum, and to achieve objectives in sighted and mesopic or large fields of vision.
• the second is that it can be used in combination with conventional high-color light sources while maintaining a color reproduction of '14' ft, which allows the classification of the surface colors of red, green, blue, yellow, white, and black.
• ⁇ a metal halide lamp with a light white color with little light discomfort.
• the third is to use a mixture of conventional low-color light sources, while maintaining the minimum color reproduction that can classify red, green, blue, yellow, white, and black surface colors.
• Meta is a highly efficient illumination light source with a light color that is less uncomfortable and the light color is equivalent to a bulb color Noren ride lamp.
• Metal halide lamps emit light in the wavelength range of 530 to 580 [ran] and 600 to 650 [nm] and emit in the metal halide (metal halide) range of 420 to 530 [nm].
• the present invention can be realized by adding a metal halide (metal halide) and a metal halide (metal halide) which emits light at 470 to 530 [ran].
• metal halide lamps based on In (blue emission), T1 (green emission), and Na (yellow / red emission) are used.
• the present invention can be realized by a set of inclusions ⁇ : in which the components are increased.
• the present invention is realized by a combination ⁇ : of (I-Dai 17) NaI'AlCl 3 or (I-Dai 18) CaI 2 'AlCl 3 and a thallium metal halide (for example, thallium iodide metal). It is also possible.
• Another common methanol pentolide lamp has a Sc—Na— (Th) system, which is filled with thallium metal halide (for example, thallium metal iodide). It is also possible to implement the invention.
• thallium metal halide for example, thallium metal iodide
• Ce—Na—Cs— (Sm) -based materials for example, these iodides
• thallium metal halides for example, thallium
• the present invention provides a highly efficient new light source
• the first is a color reproduction that can categorize red, green, blue, yellow, white, and black surface colors at a minimum.
• a light source that is a highly efficient illumination light source that has a light color that is less unnatural and that has a light color equivalent to that of a light bulb. As an improvement.
• the present invention has a high possibility of being put into practical use as an efficient light source in a place where the fidelity of color appearance is not emphasized. For example, it is particularly promising as a light source for lighting, and can be used in lighting, road lighting, street lighting, vehicle lighting, tunnel lighting, plaza lighting, garage lighting, warehouse lighting, and factory lighting.
• the light source of the present invention is applied in a place where the fidelity of color appearance is not emphasized and a place where the light source is used in a low illuminance, so that the light source can be used from a sighted view to a mesopic state! ⁇
• the effect of the present invention can be effectively obtained.
• the present invention relates to a high-efficiency new light source, which has a visible band emission wavelength range of 420 to 530 [nm] (more specifically, 420 to 470 [nra], and 470 to 530 [nm]]. nm]), 530 to 580 [nm] and 600 to 650 [nm].
• the next step is to realize an illumination light source with a white light color while securing a color reproduction life that can classify the surface colors of red, green, blue, yellow, white, and black at least. That is.
• the third is the light bulb equivalent to the bulb color, while ensuring the minimum color reproducibility that allows the classification of the red, green, blue, yellow, white, and black surface colors.
• a highly efficient illumination light source must be realized.
• the main comparison targets are the bulb color (3000K): EX-L, daylight white (5000K): ⁇ ⁇ ⁇ , and daylight color (6700K): EX-D of a three-band fluorescent lamp.
• the high-efficiency new light source based on 2B (two-wavelength-emission fluorescent lamp), in order to keep the lamp efficiency from falling below 10 [%] (Dani 3) 61 ⁇ , (3 ⁇ 4, 83) 5 (? 0 4) 3 (1 11 and 28 + 3 embodying the pressurized Ete present invention, halophosphate Cal Shiumu phosphor (I spoon 1 6) Ca5 (P0 4) 3 (F, Cl) : Sb and Mn are added to carry out the present invention, and 2B + HAW, and (2) Sr ⁇ O ⁇ Eu is added to carry out the present invention, and 2B + SAE is exemplified.
• the high-efficiency new light source (2 Since the efficiency of the wavelength-band fluorescent lamp is higher than 20%, the ordinary luminous flux is higher and superior to the 3-wavelength fluorescent lamp. Here, apart from that, we will examine the subjective brightness.
• V (( ⁇ ) / ⁇ ( ⁇ ) is used as a representative index to verify the effect of improving the sense of brightness in scotopic vision and mesopic vision, and visual sensation in a large visual field such as a real environment is used.
• V 10 () ⁇ V ( ⁇ ) is used as a representative index for verifying the effect of effective brightness enhancement.
• FIG. 28 shows the relationship between the values of V, u) / va) and the various light sources
• FIG. 29 shows the values of ⁇ 10 ( ⁇ ) ⁇ (e) and the concealment of the various light sources. Things.
• the effect of improving the efficiency of each type by adding a phosphor to the high-efficiency new light source is broadband such as a white halophosphate power phosphor used in general illumination light sources.
• the phosphor that emits light is relatively small and emits light in a relatively narrow band. That, 4 2 0 ⁇ 4 7 0 [ran ] to phosphor having relatively narrow band emission with a peak of emission (I spoon 3) (Sr, Ca, Ba ) 1 0 (P0 4) 6 C1 2: Eu shows a sufficient improvement effect. Furthermore, 4 7 0 ⁇ 5 3 0 [ ran] to the light emitting phosphor exhibiting relatively narrowband emission having a peak of (spoon 1 1) Sr 4 Al w 0 s: Eu is shows the significant improvement .
• the tint of the light color is enhanced, and the white color is improved. It can give a sense of color.
• the present invention clarifies the chromaticity range of the light color that can be accepted as the bulb color, and thereby enables highly efficient light in the fe3 ⁇ 4 range. Hara can be realized.
• the high-efficiency new light source of the present invention when used in combination with a high-color St light source, the light color variation of light colors with less discomfort and high whiteness is developed, and the light source is used in combination with a low-color light source.
• ⁇ It will be edible to develop a light color variation with light color that is less uncomfortable and light color equivalent to the light bulb color.

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• 1998
  • 1998-02-10 WO PCT/JP1998/000548 patent/WO1998036441A1/ja active IP Right Grant
  • 1998-02-10 CN CN98800092.XA patent/CN1216153A/zh active Pending
  • 1998-02-10 AT AT98901580T patent/ATE324668T1/de not_active IP Right Cessation
  • 1998-02-10 DE DE69834294T patent/DE69834294T2/de not_active Expired - Lifetime
  • 1998-02-10 CA CA002249613A patent/CA2249613A1/en not_active Abandoned
  • 1998-02-10 EP EP98901580A patent/EP0896361B1/de not_active Expired - Lifetime
  • 1998-02-10 JP JP10535565A patent/JP3143127B2/ja not_active Expired - Fee Related
  • 1998-02-10 KR KR1019980708171A patent/KR20000042740A/ko not_active Application Discontinuation
  • 1998-02-13 ID IDP980203A patent/ID19882A/id unknown
• 2000
  • 2000-07-28 JP JP2000229617A patent/JP2001060449A/ja active Pending
  • 2000-07-28 JP JP2000229616A patent/JP2001060450A/ja active Pending

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