摘要:
An electronic ballast includes a microprocessor which is programmed to read a voltage value corresponding to an output of the electronic ballast, output a signal which controls an amount of power outputted by the electronic ballast in accordance with the voltage value, read an external voltage value, and select one of a trimming mode and a normal mode as an operating mode based on the external voltage value. The microprocessor is also programmed, when operating in the trimming mode, to set an internal reference value, compare the voltage value corresponding to the output of the electronic ballast with the internal reference value, trim an amount of power outputted by the electronic ballast to a resistor corresponding to an impedance of a High Intensity Discharge lamp by adjusting the signal based upon the comparison, and store a result of the signal adjustment.
摘要:
A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the discharge lamp lighting device to obtain at least one detection voltage. The comparer compares the at least one detection voltage with a reference voltage. The inhibitor inhibits an operation of the discharge lamp lighting device when the comparer determines that a mis-wiring of the source of electrical power to the discharge lamp lighting device exists.
摘要:
An apparatus for operating a gas discharge lamp. The apparatus includes an electronic ballast and a controller. The electronic ballast includes a half bridge configuration, a full bridge configuration, a first network, and a second network. The electronic ballast is controlled by a controller that causes the half bridge configuration to ignite an arc between electrodes of the gas discharge lamp in an igniter function that uses the first network, to switch the electronic ballast from the half bridge configuration to the full bridge configuration after the arc is ignited so that a buck inverter function using the second network sustains the arc between the electrodes of the gas discharge lamp, and to provide a transient operation function to the buck inverter function to produce a spike voltage that is used to re-ignite the arc between the electrodes of the gas discharge lamp when the arc extinguishes.
摘要:
An apparatus for operating a gas discharge lamp. The apparatus includes an electronic ballast and a controller. The electronic ballast includes a half bridge configuration, a full bridge configuration, a first network, and a second network. The electronic ballast is controlled by a controller that causes the half bridge configuration to ignite an arc between electrodes of the gas discharge lamp in an igniter function that uses the first network, to switch the electronic ballast from the half bridge configuration to the full bridge configuration after the arc is ignited so that a buck inverter function using the second network sustains the arc between the electrodes of the gas discharge lamp, and to provide a transient operation function to the buck inverter function to produce a spike voltage that is used to re-ignite the arc between the electrodes of the gas discharge lamp when the arc extinguishes.
摘要:
One output power characteristic curve for supplying constant power is provided with respect to a raging voltage range of a discharge lamp, and in addition, a plurality of output power characteristic curves W1, W2 and W3 are provided with respect to a lamp voltage before the rating voltage range. There is provided minimum lamp voltage detecting means for detecting a minimum lamp voltage after a high intensity discharge lamp shifts to an arc discharge in an event where lamp power is supplied to a high intensity discharge lamp based on any initially set output power characteristic curve after the high intensity discharge lamp is started. As the minimum lamp voltage detected by the minimum lamp voltage detecting means is larger in a predetermined minimum lamp voltage range, any larger output power characteristic curve is reset from the plurality of output power characteristic curves W1, W2 and W3, and subsequent power control is performed.
摘要:
A light diffusing film contains a thermoplastic resin as the main component and contains, in the thermoplastic resin, at least one kind of a light-transmitting particle having an average primary particle diameter of 3 to 10 μm, wherein the absolute value of the refractive index difference between the thermoplastic resin and the light-transmitting particle is from 0.01 to 0.06, wherein one surface has concavoconvex shape, the total haze value is from 15 to 30%, the internal haze value is from 5 to 25%, the surface haze value is from 5 to 20%, and the average film thickness is from 20 to 200 μm.
摘要:
An antiglare film is provided, the antiglare film including a transparent plastic film substrate; an antiglare layer having fine recesses and projections on the surface thereof; and an abrasion resistant layer provided at an uppermost surface of the antiglare film, the abrasion resistant layer having an average film thickness of from 0.03 to 0.4 μm, wherein the abrasion resistant layer is formed from a curable composition containing at least following components (A), (B), and (C): (A) an inorganic fine particle containing silicon oxide as a main component and having an average particle size of from 1 to 300 nm; (B) an ionizing radiation-curable resin; and (C) a polymer thickener.
摘要:
A bond between fluoroelastomer and polyamide resin is established by applying a silane-based primer composition to a surface of polyamide resin, heat treating at 100-200° C., applying a liquid fluoroelastomer composition to the primer coat at room temperature to 100° C., and heat curing at 100-200° C. for bonding the fluoroelastomer to the polyamide resin. The bond between fluoroelastomer and polyamide resin is maintained over a long period of time even in transmission oils.
摘要:
A receiver receives from a client, a participation request indicating that a delivery of a content is desired. An affiliated group-determining unit determines of which group corresponding to the attribute content the attribute of the user, included in the participation request is affiliated. When the other client corresponds to the same desired content and the same affiliated group as that of the participation request source client, and when the other client is already registered in a client database (DB), an access point-deciding unit decides the registered client as a access point of the participation request source client. When the other client is not registered in the client DB, the access point-deciding unit decides a delivering server as the access point of the participation request source client.
摘要:
A liquid crystal display device comprising: a first protective film; a first polarizing film; an optical compensation region; a liquid crystal cell comprising a liquid crystal layer and a pair of substrates sandwiching the liquid crystal layer; a second polarizing film; and a second protective layer, in this order, wherein at a black display, liquid crystal molecules in the liquid crystal layer are aligned in parallel with surfaces of said pair of substrates, an antiglare layer is provided to at least one of the first protective film and the second protective layer, and the antiglare layer has a haze value attributable to internal scattering of from 5 to 35%, and a haze value attributable to surface scattering of from 1 to 10%.