摘要:
A piezoelectric vibration module includes a piezoelectric element, a wiring member connected to the piezoelectric element and drawn out to the outside, and an elastic plate bonded to one surface of the piezoelectric element, wherein the elastic plate is made of a silicone rubber.
摘要:
A piezoelectric vibration module includes a piezoelectric element, a wiring member connected to the piezoelectric element and drawn out to the outside, and an elastic plate bonded to one surface of the piezoelectric element, wherein the elastic plate is made of a silicone rubber.
摘要:
A piezoelectric transformer (101) comprises a layered structure (15) formed by alternately stacking a plurality of internal electrodes (13) and a plurality of piezo-electric ceramics layers (103) in thickness direction, first electrodes (21, 23) formed on side surfaces of said layered structure (15) and connected to said internal electrodes (13), at least one pair of second electrodes (27, 29, 31, 33, 35, 37) formed on the side surfaces in areas different from those of the first electrodes (21, 23) and having a same potential, and a circuit board for driving the piezoelectric transformer. The piezoelectric transformer (101) is mounted on the circuit board. Each of the at least one pair of the second electrodes (27, 29, 31, 33, 35, 37) opposite to each other is electrically connected to the circuit board.
摘要:
In a surface light source device (1), a positive reflective region (23) of a reflective member (20) that is disposed on the bottom surface (4) of a housing (2) reflects light output by a light emitting device (14) toward a direction away from the light emitting device (14). As a result, the brightness of the light in the proximity of the light emitting device (14) of the surface shaped illuminating light output by a light emitting surface member (3) can be suppressed, and the brightness of light of a central part (position furthest away from the light emitting device (14)) of the surface shaped illuminating light output by the light emitting surface member (3) can be increased.
摘要:
In order to improve a measurement accuracy of a mass flow meter, the mass flow meter comprises a flow rate calculating section that obtains an output signal from a sensor section having a thermosensitive resistive element arranged in a flow channel where a sample gas flows and that calculates a flow rate of the sample gas, a pressure measuring section that measures a primary side pressure in the flow channel, and a flow rate correcting section that corrects the measured flow rate obtained by the flow rate calculating section by the use of the primary side pressure obtained by the pressure measuring section and a gas coefficient determined by an isobaric specific heat of the sample gas.
摘要:
In an image forming apparatus provided with an optical beam scanning apparatus according to the invention, an optical beam scanning apparatus of an overillumination scanning optical system includes a semiconductor laser device as a light source, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, with a width of the luminous flux made incident on the polygon mirror being wider than a width of one reflecting surface forming the polygon mirror, wherein at least two sheets of flat plate for transmitting the luminous flux scanned by the polygon mirror are provided in the post-deflection optical system. In accordance with an image forming apparatus provided with an optical beam scanning apparatus according to the invention, not only a wave front aberration on a photoconductive drum can be suitably corrected, but suitable beam diameter and beam profile can be obtained on the photoconductive drum.
摘要:
A wireless communication device functioning as a wireless LAN access point includes: a first wireless LAN interface; a communication control section configured to carry out, using a first wireless LAN interface, wireless communication with wireless LAN clients on a first frequency ; an external device interface for connection with an external device; and a communication updating section configured to, when an external device having a second wireless LAN interface has been connected to the external device interface, cause the communication control section to carry out, concurrently with the wireless communication with wireless LAN client(s) using the first wireless LAN interface on the first frequency, wireless communication using the second wireless LAN interface with wireless LAN client(s) on a second frequency.
摘要:
In a digital multiple apparatus, at least two different jobs are processed by at least two job processing units, and while job processing by one job processing unit, if there is an interruption by job processing by the other job processing unit, an end time of the job processing by the one job processing unit is predicted on the basis of job processing time required for the job processing by the other job processing unit.
摘要:
In an image forming apparatus according to the invention, an optical beam scanning apparatus of an overillumination scanning optical system includes a laser, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, wherein the post-deflection optical system includes at least one optical element configured by allowing a resin to flow into a molding die through a gate opening provided in advance to the molding die and then molding the resin into a prescribed shape; and in the optical element, a side corresponding to aside of the gate opening through which the resin flows is provided to a light incidence side where the luminous flux enters into the polygon mirror.
摘要:
A light flux controlling member can prevent unevenness in the uniformity of brightness due to the glueing of leg parts. This light flux controlling member (100) has: a virtually annular flange (140) that projects outward of a radial direction of a third emission surface (110c) of a light controlling emission surface (110); and leg parts (150) of a round stick shape that are arranged within a range of area width L in a back surface (120) and on the reference optical axis side of the boundary between the flange (140) and the third emission surface (110c), and area width L is given according to the following equation. L=t×tan(+−β), where: t is the thickness of the flange (140) or the height from the back surface (120) to the outermost rim part (110d); α is an angle of incidence of a light (113) that is parallel to the reference optical axis and that is incident on the light controlling emission surface (110) in the outermost rim part (110d); and β is an angle of emission of a refraction light (115) that is generated when the light (113) parallel to the reference optical axis is incident on the light controlling emission surface (110) from the outermost rim part (110d), and that is emitted from the light controlling emission surface (110).