摘要:
An acceleration sensor includes: a piezoelectric vibrator including a piezoelectric element having a first principal surface and a second principal surface opposed each other, a first and a second electrode formed on the first and the second principal surface, and conductive protrusions made of a metal material or a ceramic material and formed by a thermal spraying process; and a holding body for holding the piezoelectric vibrator via the conductive protrusions.
摘要:
Protrusions made of an electrically conductive material such as a metal or ceramic are formed around a node point or a node line of vibrations of a piezoelectric plate on two principal planes thereof by a spraying process. The piezoelectric plate is held at the protrusions with leaf springs on the two principal planes. Thus, protrusions of a small surface area are formed without deteriorating the piezoelectric plate. The piezoelectric plate can be held stably without deteriorating the vibration characteristics. An alternating voltage is applied to electrodes of the piezoelectric plate through the electrically conductive protrusions. Because a spraying process is used, the protrusions can be thickly and precisely formed in a small area and held surely and reliably, with a good mechanical strength of the protrusions.
摘要:
A DC gas discharge type image display device includes a front glass substrate; a rear glass substrate facing the front glass substrate, interposing a discharge gas therebetween; a set of anodes including a plurality of line electrodes formed on the rear glass substrate; a set of cathodes including a plurality of line electrodes placed on the front glass substrate so as to perpendicularly cross the set of anodes; and a plurality of discharge cells, each being provided so as to correspond to each of the cross points of the set of anodes and the set of cathodes. The device is driven in a refresh driving method or a memory driving method. As to the production of this device, the set of cathodes is formed by a spraying method. The cathodes are made from aluminum, nickel, an aluminum alloy or a nickel alloy. The discharge gas is a mixed gas of He and Xe.
摘要:
In a DC gas discharge type image display apparatus including: a front glass substrate; a rear glass substrate facing the front glass substrate, interposing a discharge gas therebetween; a set of anodes including a plurality of line electrodes formed on the rear glass substrate; a set of cathodes including a plurality of line electrodes placed on the front glass substrate so as to perpendicularly cross the set of anodes; and a plurality of discharge cells, each being provided so as to correspond to each of the cross points of the set of anodes and the set of cathodes, the apparatus being driven in a refresh driving method or a memory driving method, the set of cathodes are formed by a spraying method. The cathodes are made from aluminum, nickel, an aluminum alloy or a nickel alloy. The discharge gas is a mixed gas of He and Xe.
摘要:
A vacuum evaporation apparatus has a melting pot containing evaporating material therein and a movable partition. A surface of the evaporating material is separated into a supplying surface (whereinto a Cr-Co material rod of replenishing material is supplied) and an evaporating surface (whereonto an electron beam is irradiated) by the partition only during deposition of evaporating material onto a substrate. After finish of the deposition, the partition is lifted and is apart from the surface.
摘要:
In a heat-plasma-jet, an arc is initially generated between opposed endless ends of a pair of electrodes and is moved along the opposed endless ends of the electrodes by generating magnetic fields having the same polarity at the opposed ends of the electrodes. Thereafter, a plasma generating gas is supplied into a region in which the arc is generated.
摘要:
A calendar mechanism of a timepiece includes a date indicator having a date wheel portion provided with a notched portion. An operation lever attached to the date indicator is pivotable between a pre-feed allowing position, where a tooth-shaped engaged portion thereof is inserted into the notched portion whereby excess feeding of the date indicator is possible, and a normal feed allowing position, where the tooth-shaped engaged portion retreats from the notched portion whereby normal feeding is possible. The date indicator is rotated by a day earlier than the normal feeding when set to the pre-feed allowing position. A driving lever structure includes a cam follower engaged with a month cam and is driven in response to rotation of the month cam to allow the operation lever to be pivoted between the normal feed allowing position and the pre-feed allowing position.
摘要:
A timepiece with a calendar mechanism has a first date indicator provided with numbers for indicating the ones place of a date, and a second date indicator provided with numbers for solely indicating the tens place of the date and numbers for singly indicating the one-digit date. The first date indicator has 12 calendar feeding teeth formed as inner teeth. The calendar feeding teeth comprise first to tenth calendar feeding teeth spaced apart angularly in a first direction, an eleventh calendar feeding tooth arranged at an angular interval in a second direction opposite to the first direction relative to the first calendar feeding tooth, and a twelfth calendar feeding tooth arranged at an angular interval in the first direction relative to the eleventh calendar feeding tooth. The second date indicator has at least one window portion for displaying the ones place using the numbers of the first date indicator.
摘要:
To provide a timepiece with calendar mechanism compactly constituting a drive mechanism for driving a plurality of date indicators and including the date indicators having date characters which are large and easy to see. A timepiece with calendar mechanism of the invention includes a first date indicator 512 and a second date indicator 522 for indicating a position of 1 of a date, a third date indicator 532 for indicating a position of 10 of the date and a program wheel 540 capable of respectively rotating the first date indicator 512, the second date indicator 522, the third date indicator 532 intermittently based on operation of a drive mechanism. The date can be indicated by one of first date characters of the first date indicator and one of third date characters of the third date indicator 532, and the date can be indicated by one of second date characters of the second date indicator 522 and one of the third date characters of the third date indicator 532.
摘要:
A calendar mechanism-equipped timepiece having a compactly constructed drive mechanism for driving first and second date indicators is offered. A timepiece equipped with a calendar mechanism has a drive mechanism, time display wheels, a first date indicator for displaying the ones digit of the date, a second date indicator for displaying the tens digit of the date, and a program wheel capable of intermittently rotating the first date indicator and the second date indicator based on the operation of the drive mechanism. The center axis of rotation of the time display wheels is located within the center hole of the program wheel under the condition where the time display wheels are rotatable. The first and second date indicators are placed in position adjacently to each other. Information about the date can be displayed from a window in the dial by one of the first date characters on the first date indicator and one of the second date characters on the second date indicator.