摘要:
An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.
摘要:
An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.
摘要:
To constrain reductions in luminous efficacy while enhancing the color rendition index, the LED module includes a blue LED, at least one variety of phosphor particles excited by the outgoing light from the blue LED, and neodymium glass particles that include neodymium ions absorbing the outgoing light from the phosphor particles in a predetermined wavelength band.
摘要:
To constrain reductions in luminous efficacy while enhancing the color rendition index, the LED module includes a blue LED, at least one variety of phosphor particles excited by the outgoing light from the blue LED, and neodymium glass particles that include neodymium ions absorbing the outgoing light from the phosphor particles in a predetermined wavelength band.
摘要:
A substrate having a mounting surface on which an LED is mounted, including: a conductive member provided on the mounting surface and including an electrode and wiring which are electrically connected to the LED; a fitting portion to which a metal body is fitted; and a discharge-reducing portion provided between the conductive member and the fitting portion and having a face tilted with respect to a surface of the mounting substrate, thereby increasing a creeping distance between the conductive member and the fitting portion compared to the case where the discharge-reducing portion is not provided.
摘要:
A fluorescent lamp including a glass bulb, a protection layer formed on an inner surface of the glass bulb, and a phosphor layer formed on a surface of the protection layer. The surface of the protection layer that is in contact with the phosphor layer has cracks. The bulk density of the metal oxide particles in the protection layer 32 is 80% or more. The surface of the protection layer 32 has 20 to 200 cracks per millimeter in a tube axis direction. The average particle diameter of the metal oxide particles is in the range from 0.01 μm to 1 μm. The thickness of the protection layer is in the range from 0.5 μm to 5 μm.
摘要:
A fluorescent lamp including a glass bulb, a protection layer formed on an inner surface of the glass bulb, and a phosphor layer formed on a surface of the protection layer. The surface of the protection layer that is in contact with the phosphor layer has cracks. The bulk density of the metal oxide particles in the protection layer 32 is 80% or more. The surface of the protection layer 32 has 20 to 200 cracks per millimeter in a tube axis direction. The average particle diameter of the metal oxide particles is in the range from 0.01 μm to 1 μm. The thickness of the protection layer is in the range from 0.5 μm to 5 μm.
摘要:
A fluorescent lamp is configured so that a glass bulb has a phosphor film formed on its internal face, and a rare gas and an amalgam pellet are enclosed therein. The amalgam pellet contains zinc, tin, and mercury as principal components, one amalgam pellet is enclosed in the glass bulb, and the amalgam pellet has a weight of not more than 20 mg. The fluorescent lamp satisfies the relationship expressed as: 45×(1−A)≦x≦55x(1−A), 75A≦y≦85A, 45−30A≦z≦55−30A, and x+y+z≦100, where x represents a content of zinc contained in the amalgam pellet in percent by weight, y represents a content of tin therein in percent by weight, and z represents a content of mercury therein in percent by weight. This configuration allows the fluorescent lamp to be characterized in that an amount of released mercury that is necessary for the first lighting of the fluorescent lamp is secured, and that the phosphor film is less prone to being peeled due to the amalgam.
摘要翻译:荧光灯被配置为使得玻璃灯泡在其内表面上形成有荧光膜,并且在其中封入稀有气体和汞齐颗粒。 汞齐颗粒含有锌,锡和汞作为主要成分,一个汞齐颗粒被封闭在玻璃泡中,汞齐颗粒的重量不超过20毫克。 荧光灯满足表示为:45x(1-A)<= x <= 55x(1-A),75A <= y <= 85A,45-30A <= z <= 55-30A,x + y + z <= 100,其中x表示汞齐颗粒中含有的锌含量,重量百分比,y表示锡的含量,重量百分比,z表示其中的汞含量。 这种结构允许荧光灯的特征在于,确保荧光灯的第一次点亮所需的释放汞量,并且荧光膜不太可能由于汞齐而被剥离。
摘要:
In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation, W=−5.3C+100, wherein chroma C is determined by the CIE 1997 Interim Color Appearance Model (Simple Version).
摘要:
In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation, W=−5.3C+100, wherein chroma C is determined by the CIE 1997 Interim Color Appearance Model (Simple Version).