Abstract:
To stabilize the illumination fluctuation rate of a short arc type discharge lamp of the type having a pair of electrodes disposed inside an arc tube in a manner of facing each other and a hydrogen getter, by absorbing hydrogen gas in an arc tube without causing a decline in the performance of the short arc type discharge lamp arising out of a hydrogen getter, the hydrogen getter is formed of a hollow container made of a material that allows the transmission of hydrogen with a getter material sealed tightly inside the hollow container, and a holder for the hydrogen getter is held on the electrode with the hydrogen getter fixed in the holder.
Abstract:
A short arc discharge lamp has improved starting properties in which there is no danger of damaging the arc tube that surrounds a discharge space and in which the radiant light from the arc tube is not adversely shielded. This is achieved by providing the short arc discharge lamp with a first electrode having an electrical potential and to which a high voltage is applied, and a second electrode opposite the first at a in spaced relationship. Additionally, in the discharge space, there is positioned at least one conductive component with a tip projecting into the discharge space. The conductive component has an electrical potential which is identical to the electrical potential of the first electrode and has a tip spaced a distance from the second electrode which is greater than the distance between the first and the second electrode.
Abstract:
It is an object to provide a xenon discharge lamp lighting device with few or no lamp startup lighting failures, even when a xenon discharge lamp is near the end of its useful life. In the xenon discharge lamp, when a lamp voltage increases, from the ending point of the rush current supply time period, occurring upon starting a xenon discharge lamp lighting igniter, for a preset specified time T, the input power is increased in accordance with the lamp voltage increase amount, whereby constant power control is provided thereafter.
Abstract:
An apparatus for controlling the operation of an automobile air conditioner comprises mode switches which permit selection between a manual control mode and an automatic control mode for the control of the flow rate of the conditioned air, and a digital computer incorporating therein a memory which memorizes the selected control mode in accordance with signals received from the mode switches. The digital computer is constituted to give instructions to control members of the air conditioner for controlling in accordance with the values stored in the memory, and to set in the memory a value representing the automatic control mode so as to operate the air conditioner in the automatic control mode when a main switch of the air conditioner is turned on.
Abstract:
An automotive air conditioner device includes an air duct, a blower motor for producing an air stream to be supplied to an automotive passenger compartment through the air duct, a heat exchanger having a heater and a cooling device, and an electronic control device. The electronic control device includes various sensors, a microcomputer for executing computation processings of output signals from the various sensors in accordance with a predetermined program and producing a first and a second control signal, a drive circuit responsive to the first control signal for changing a temperature adjusting value of the heat exchanger and another drive circuit responsive to the second control signal for changing the cooling power of the cooling device, thereby to control the air temperature within the automotive passenger compartment at a desired value.
Abstract:
To stabilize the illumination fluctuation rate of a short arc type discharge lamp of the type having a pair of electrodes disposed inside an arc tube in a manner of facing each other and a hydrogen getter, by absorbing hydrogen gas in an arc tube without causing a decline in the performance of the short arc type discharge lamp arising out of a hydrogen getter, the hydrogen getter is formed of a hollow container made of a material that allows the transmission of hydrogen with a getter material sealed tightly inside the hollow container, and a holder for the hydrogen getter is held on the electrode with the hydrogen getter fixed in the holder.
Abstract:
To provide a flickerless discharge lamp which can remove hydrogen by a simple and safe means even if the lamp is a large discharge lamp with high pressure when lit, the discharge lamp has a pair of electrodes and a hydrogen getter (4) in the interior of an arc tube, the hydrogen getter (4) being formed of a container (41) made of metal which is hydrogen permeable and a hydrogen absorbent body (42) that is composed of a metal which can absorb hydrogen that is enclosed inside of the container (41) and is fixed to an inside wall of the container (41).
Abstract:
To provide a flickerless discharge lamp which can remove hydrogen by a simple and safe means even if the lamp is a large discharge lamp with high pressure when lit, the discharge lamp has a pair of electrodes and a hydrogen getter (4) in the interior of an arc tube, the hydrogen getter (4) being formed of a container (41) made of metal which is hydrogen permeable and a hydrogen absorbent body (42) that is composed of a metal which can absorb hydrogen that is enclosed inside of the container (41) and is fixed to an inside wall of the container (41).
Abstract:
The rare gas discharge lamp is supplied with a current, which is lower than the rated current, the voltage of the rare gas discharge lamp is determined at this instant and the swing width of this voltage is measured. A comparator for comparing measured values of the swing width of the voltage of the rare gas discharge lamp when the current control supplies a reduced current, which is lower than the rated current. A service life converter for converting the difference value output by the comparison means into an indication of the service life of the rare gas discharge lamp.
Abstract:
A short arc discharge lamp in which the arc tube contains opposed cathode and anode electrodes with upholding parts that are inserted into a respective glass tube holding cylinder, and in which the glass tubes of the holding cylinders are secured in the side tubes at opposite sides of the arc tube by contracted areas, provides the peripheral surface of the holding cylinders with at least one section of reduced diameter to prevent the holding cylinders from moving, to prevent force from acting in a concentrated manner on the sealed areas and to prevent the lamp from being damaged when the lamp is shaken during transport or the like.