Lg Innotek Co., Ltd.

Other

York Airconditioning Corporation

Ki Ho Hong

Ji Wook Moon

Hyun Goo Kang

Ji Hye Kim

Sun Young Park

Jae Moon Lee

Ga Yeon Lee

The present invention relates to a method for collecting sunlight through an image method by tracking the sun using a dish-shaped light collector or a paraboloidal light collector and, and to a method and an apparatus for transmitting high-density light as the collected sunlight to a remote place, to which the light is applied, and for generating super-high-density light by combining, in a multi-stage manner, the high-density light obtained through a plurality of light collectors. A first concaveparaboloidal reflector of a paraboloidal light collection unit can collect light, transmit the collected light to the remote place, and provide an efficient and quantitative use environment to an applied device by using a paraboloidal reflector set including: a first concave-paraboloidal mirror in which a slope of a paraboloide is provided to make a narrow width so that downward reflection is greater than or equal to 90% by an angle between an incident angle at an inner point of a paraboloidal mirror and a normal surface, the angle being larger than a critical angle, and which has an opening formed at the lower side of a central axis thereof; and a second convex-paraboloidal reflector, which has a small diameter, shares a focus of the first concave-paraboloidal mirror, and has a miniaturized shape of the first concave-paraboloidal mirror at a focal portion without an opening at a central axis thereof.

Multiple sunlight collection structure

Disclosed are a phosphor composition and a light emitting apparatus including the same. The phosphor composition has a compositional formula of ACO:RE, wherein the z is 0&#x2264;z&#x2264;3, the x is 0&#x2264;x&#x2264;5, the A includes at least one selected from the group consisting of Y, Sc, Gd and Lu, the C includes at least one selected from the group consisting of B, Al and Ga, and the RE includes at least one selected from the group consisting of Eu, Ce, Sm, Yb, Dy, Gd, Tm and Lu. The light emitting apparatus includes the phosphor composition.

Phosphor composition and light emitting device package having the same

Disclosed are a phosphor and a light emitting device having the same. The light emitting device includes a light emitting chip, a plurality of phosphors to absorb a portion of light emitted from the light emitting chip and to emit lights having mutually different peak wavelengths, and a molding member provided on the light emitting chip and including the phosphors. The phosphors include a first phosphor to emit light having a first peak wavelength, a second phosphor to absorb the portion of the light emitted from the light emitting chip and to emit light having a second peak wavelength, and a third phosphor to absorb the portion of the light emitted from the light emitting chip and to emit light having a third peak wavelength. The first to third peak wavelengths have mutually different color spectrums, and a light emission spectrum in which the first to third peak wavelengths are mixed with each other has a luminous intensity having a substantially flat section in at least 30 nm at a peak wavelength thereof.

Phosphor and light emitting device having the same

Disclosed are a phosphor and a light emitting device including the same. The light emitting device includes a light emitting chip, a phosphor layer on the light emitting chip, and a phosphor added into the phosphor layer to absorb a light emitted from the light emitting chip and emit a central wavelength having a first blue color. The phosphor has a composition formula of LaOSiAlN:Ce, a range of the x is 2&#x2266;x&#x2266;8, and a range of the y is 3&#x2266;y&#x2266;12.

Growing community of inventors

Seoul, South Korea

Ki Ho Hong