Abstract:
A thin-film phosphor layer can be formed by an improved deposition method involving: (1) forming a phosphor powder layer that is substantially uniformly deposited on a substrate surface; and (2) forming a polymer binder layer to fill gaps among loosely packed phosphor particles, thereby forming a substantially continuous layer of thin film.
Abstract:
A wavelength converting structure is provided. The wavelength converting structure comprises the following: a substrate, and a wavelength converting coating which is deposited on the substrate and comprises: (a) a phosphor powder which can be excited by UV c ; and (b) an anti-UV C adhesive,
wherein the thickness of the wavelength converting coating is 2 to 10 times the average particle size of the phosphor powder and the amount of the phosphor powder in the wavelength converting coating conforms to at least one of the following requirements: (i) the phosphor powder should be about 30 % to 85% by volume of the wavelength converting coating based on the total volume of the phosphor powder and the adhesive; and (ii) the weight ratio of the phosphor powder to the adhesive should range from 1:1 to 20:1.
The wavelength converting coating can effectively convert UV C to visible light to provide a visible light source with a high surface area.
Abstract:
A wavelength converting structure is provided. The wavelength converting structure comprises the following: a substrate, and a wavelength converting coating which is deposited on the substrate and comprises: (a) a phosphor powder which can be excited by UV c ; and (b) an anti-UV C adhesive,
wherein the thickness of the wavelength converting coating is 2 to 10 times the average particle size of the phosphor powder and the amount of the phosphor powder in the wavelength converting coating conforms to at least one of the following requirements: (i) the phosphor powder should be about 30 % to 85% by volume of the wavelength converting coating based on the total volume of the phosphor powder and the adhesive; and (ii) the weight ratio of the phosphor powder to the adhesive should range from 1:1 to 20:1.
The wavelength converting coating can effectively convert UV C to visible light to provide a visible light source with a high surface area.
Abstract:
A thin-film phosphor layer can be formed by an improved deposition method involving: (1) forming a phosphor powder layer that is substantially uniformly-deposited on a substrate surface; and (2) forming a polymer binder layer to fill gaps among loosely packed phosphor particles, thereby forming a substantially continuous layer of thin film.
Abstract:
Disclosed herein is a fluorescent light source including an yttria layer. Specifically, the current invention provides a fluorescent light source having high quality and a long lifetime, which can prevent a decrease in initial luminance of a fluorescent light source, including a fluorescent lamp, and resist the radiation of ultraviolet light and the permeation of mercury, which are the causes of deterioration of the fluorescent light source, so as not to decrease the luminance in proportion to the lighting time of the fluorescent light source, thus assuring both initial luminance properties and luminance properties after use for a long period of time. Such a fluorescent light source includes glass, a fluorescent material layer, and an absorbing layer composed mainly of yttria particles formed between the glass and the fluorescent material layer or on the inner surface of the fluorescent material layer. In addition, an yttria coating composition used in the fluorescent light source and a method of fabricating the fluorescent light source using the composition are also provided.
Abstract:
A light emitting diode includes a frame, which has fist leg, a second leg, a chip bonded to the top end of the first leg, and an electrode wire soldered between the chip and the top end of the second leg, and a resin layer, which packages the chip and the electrode wire and has a fluorescent layer evenly distributed in between a first resin layer and a second resin layer thereof for enabling light source from the chip to be fully mixed with the color of the fluorescent material in the fluorescent layer to produce the designed color of light.
Abstract:
A high-brightness flat lamp structure comprises a reflecting plate, a plurality of UV light sources, a macromolecular polymer layer and a fluorescent powder layer. The UV light sources and the macromolecular polymer layer are sandwiched between the reflecting plate and the fluorescent powder layer. The functions of diffusing and guiding light of the macromolecular polymer layer are exploited to let UV lights emitted by the UV light sources and reflected by the reflecting plate excite the fluorescent powder layer to radiate high-brightness visible lights. Besides, macromolecular polymer and fluorescent powder can be mixed up to form a mixed layer of macromolecular polymer and fluorescent powder to let UV lights emitted by the UV light sources and reflected by the reflecting plate directly excite fluorescent powder to radiate high-brightness visible lights.
Abstract:
A high-brightness flat lamp structure comprises a reflecting plate, a plurality of UV light sources, a macromolecular polymer layer and a fluorescent powder layer. The UV light sources and the macromolecular polymer layer are sandwiched between the reflecting plate and the fluorescent powder layer. The functions of diffusing and guiding light of the macromolecular polymer layer are exploited to let UV lights emitted by the UV light sources and reflected by the reflecting plate excite the fluorescent powder layer to radiate high-brightness visible lights. Besides, macromolecular polymer and fluorescent powder can be mixed up to form a mixed layer of macromolecular polymer and fluorescent powder to let UV lights emitted by the UV light sources and reflected by the reflecting plate directly excite fluorescent powder to radiate high-brightness visible lights.
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive for a fluorescent dye for bonding a fluorescent layer to a substrate, a method for production thereof and a method of using the same. SOLUTION: The adhesive for the fluorescent dye is used for bonding a fluorescent layer to a substrate, and includes a glass composition or is composed of the glass composition. The glass composition is selected from the group consisting of the glasses of phosphate, borate, sulfophosphate, and borosilicate having high boron content and further, it is preferable to contain no silicate. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A thin-film phosphor layer can be formed by an improved deposition method involving: (1) forming a phosphor powder layer that is substantially uniformly deposited on a substrate surface; and (2) forming a polymer binder layer to fill gaps among loosely packed phosphor particles, thereby forming a substantially continuous layer of thin film.