Abstract:
Disclosed herein is a scent bottle type portable wireless terminal. The scent bottle type portable wireless terminal includes a body housing, a band shape rim unit surrounding upper and lower surfaces and a pair of side surfaces of the body housing, a rotatable lens housing provided between the body housing and the rim unit, the lens housing extending in a longitudinal direction of the body housing, one or more openings defined between the body housing, the lens housing and the rim unit, and a rotatable handle coaxially extending relative to the lens housing so that it protrudes outwardly from an outer surface of the rim unit.
Abstract:
A middle output electrodeless lighting system comprising: a resonator having a certain inner space and adapted to form a resonance mode by shielding a discharge of microwaves applied therein to the exterior and to allow a discharge of light generated to the exterior; an electrodeless bulb including a light emitting portion positioned in the inner space of the resonator to emit (generate) light upon plasmarizing light emitting materials filled therein by the microwaves applied to the resonator, and a supporting member to support the light emitting portion thus to allow the light emitting portion to be arranged up to a certain height in the inner space of the resonator; and an initial lighting unit disposed at one side of the inner space of the resonator to enhance concentration of microwaves toward the electrodeless bulb so as to stabilize an initial lighting of the electrodeless bulb.
Abstract:
Disclosed is an electrodeless lighting system capable of being used as an optical source of an electronic device by being minimized and capable of obtaining an optimum impedance matching and controlling a resonance frequency. The electrodeless lighting system comprises: a magnetron for generating microwave and having an antenna through which the microwave is outputted; a resonator having a resonance space where the microwave is resonated and having an inner diameter partially different along a path that the microwave passes; a bulb installed inside the resonator and having a light emitting material therein for emitting light by the microwave energy; and a microwave feeder of which one side is connected to the antenna and another side thereof is connected to the bulb, for guiding microwave to the bulb, in which a ratio of an outer diameter of the microwave feeder and a ratio of an inner diameter of the resonator corresponding to the outer diameter of the microwave feeder are varied along a progressive direction of the microwave.
Abstract:
A two-layered electrophotographic photoreceptor is formed. The two-layered electrophotographic photoreceptor includes an electrically conductive substrate and a charge generating layer and a charge transporting layer form on the electrically conductive substrate, wherein the charge generating layer is a naphthalenetetracarboxylic acid diimide derivative represented by: The two-layered electrophotographic photoreceptor has high photosensitivity and low residual potential.
Abstract:
An electrodeless lighting system includes: a waveguide for guiding microwave energy generated from a microwave generator; and a resonator formed in a mesh structure allowing the microwave energy having passed the waveguide to resonate therein and passing light, and having around the bulb a microwave leakage preventing portion having a relatively low perforation ratio per unit area so that microwave energy is concentrated on the bulb positioned therein. Accordingly, leakage of microwaves is minimized and luminous efficiency is improved.
Abstract:
The present invention relates to compounds of the following formula (I) or pharmaceutically acceptable salts thereof. The present invention also relates to use for a cognitive-enhancing agent of compounds of the following formula (I) or pharmaceutically acceptable salts thereof and to a process for preparing the same. Further, the present invention relates to use for a congnitive-enhancing agent of decursin of the following formula (II) or pharmaceutically acceptable salts thereof. In addition, the present invention relates to extracts of Angelica gigantis Radix comprising decursin of the following formula (II), having cognitive-enhancing effects.
Abstract:
An electrodeless lighting apparatus includes: a waveguide for guiding microwave energy generated from a microwave generator; a resonance unit coupled with an outlet of the waveguide and comprising at least two resonators having mesh structures which are slidingly coupled with each other in the longitudinal direction such that the height of the resonance unit is varied and an aperture ratio according to the height of the resonance unit is varied, the resonance unit for resonating the microwave energy guided through the waveguide; and a bulb located inside the resonance unit and generating light as a material enclosed therein becomes plasma by microwave energy, so that the overall length of the resonance unit can be varied or aperture ratios of the mesh corresponding to the height of the resonance unit can be adjusted according to a bulb type and conditions to which the electrodeless lighting apparatus is applied, whereby a resonator does not need to be separately manufactured according to its length or aperture ratio. Accordingly, time and costs spent manufacturing a new resonator can be reduced to thereby lower the unit cost and maintenance costs can be reduced by decreasing the number of assembly processes when changing a bulb.
Abstract:
A low-output microwave lighting system includes: a rectifier for rectifying general AC power inputted through a power source unit and outputting a DC voltage; a power factor compensator for compensating a power factor of the DC voltage inputted through the rectifier; and an inverter circuit unit for receiving the power factor-compensated DC voltage and outputting an AC voltage through frequency varying. 120 Hz of ripple generated at a low output can be reduce, and it is driven at a frequency of 20 KHz or higher, so that a flicker phenomenon does not occur and a volume and weight in facility can be reduced.