摘要:
The optical apparatus includes an image pickup optical system including a focus lens, a controller controlling movement of the focus lens in an optical axis direction of the image pickup optical system, a shake detector detecting a shake amount of the optical apparatus in the optical axis direction, and a memory storing plural shake amounts sequentially detected by the shake detector. The controller calculates, in response to a start instruction of exposure for the image pickup and before start of the exposure, a predictive value of the shake amount for a time point of the exposure based on the plural shake amounts stored in the memory and including at least one shake amount detected after the start instruction of exposure. The controller moves the focus lens to a position corresponding to the predictive value before the start of the exposure.
摘要:
Electronic device 1 comprises an element body 10, comprising a dielectric layer 2 constituted by a dielectric ceramic composition, and a terminal electrode 4, formed outside of the element body 10. The dielectric ceramic composition comprised a main component including barium titanate; a first subcomponent including at least one oxide of Mg and Ca; a second subcomponent including SiO2; a third subcomponent including at least one oxide of Mn and Cr; and a fourth subcomponent including an oxide of rare earth elements, wherein the net valence of Mn and/or Cr in the third subcomponent is 2.2 to 2.4. According to the electronic device 1, both high temperature accelerated lifetime characteristics and capacity stress aging characteristics can be improved in a balanced manner.
摘要:
The optical image stabilizer shifts an image stabilizing element with respect to an optical axis of an optical system to reduce image shake. The stabilizer includes a lock ring which is rotatable to a lock position to limit shift of the image stabilizing element and to a lock-releasing position to allow the shift of the image stabilizing element, an actuator which rotates the lock ring to the lock position and the lock-releasing position, and a biasing mechanism which mechanically biases the lock ring rotated to the lock position toward the lock position and biases the lock ring rotated to the lock-releasing position toward the lock-releasing position.
摘要:
An image stabilizer includes: an optical system movable in a plane perpendicular to an optical axis (“orthogonal plane”) and correcting image blur; a movable member holding the optical system and movable relative to a fixed member in an orthogonal plane; a guide guiding the movable member while preventing from rotating in an orthogonal plane; three first balls rollably interposed between the fixed and guide members; two second balls rollably interposed between the guide and movable members; one third ball rollably interposed between the fixed and movable members; a biasing unit biasing the movable member toward the fixed member; and a drive unit driving the movable member relative to the fixed member in two directions perpendicular to the optical axis, wherein in an orthogonal plane, two of the first balls are rollable only in first direction; the second balls are rollable only in second direction different from the first direction.
摘要:
A release layer paste used for producing a multilayer electronic device, used in combination with an electrode layer paste including terpineol, dehydroterpineol, terpineol acetate, or dehydroterpineol acetate and including a ceramic powder, organic vehicle, plasticizer, and dispersion agent, the organic vehicle containing a binder having polyvinyl acetal as its main ingredient, a ratio (P/B) of the ceramic powder and the binder and plasticizer being controlled to 1.33 to 5.56 (however, excluding 5.56).
摘要:
An electronic device, such as a multilayer ceramic capacitor, and a method for producing the electronic device having an internal electrode layer and a dielectric layer, comprising a step of forming a pre-fired internal electrode thin film including a conductive component and a dielectric component, a step of stacking green sheets to be dielectric layers after firing and the internal electrode thin films, and a step of firing a multilayer body of the green sheets and the internal electrode thin films are provided: by which grain growth of conductive particles in a firing step can be suppressed, spheroidizing in the internal electrode layers and breaking of electrodes can be effectively prevented, and a decline of the capacitance can be effectively suppressed even when a thickness of each internal electrode layer is made thinner.
摘要:
It is an object of the present invention is to provide a method for manufacturing a multi-layered ceramic electronic component which can reliably prevent a multi-layered unit including a ceramic green sheet and an electrode layer from being damaged and efficiently laminate a desired number of the multi-layered units, thereby manufacturing the multi-layered ceramic electronic component.The method for manufacturing a multi-layered ceramic electronic component according to the present invention includes a step of laminating a plurality of multi-layered units each formed by laminating a release layer, an electrode layer and a ceramic green sheet on a support sheet in this order, the method further including steps of positioning the multi-layered unit on a base substrate so that the surface of the ceramic green sheet is contact with an agglutinant layer formed on the surface of the base substrate in such a manner that the bonding strength between itself and the support substrate is higher than the bonding strength between the support sheet and the release layer and lower than the bonding strength between itself and the ceramic green sheet, pressing it and laminating multi-layered units on the base substrate.
摘要:
To provide a multilayer ceramic capacitor which has capacitance-temperature characteristics satisfying the X8R characteristic specified by the EIA standard and has capacitance with an excellent long-term stability.The object is achieved by a multilayer ceramic capacitor comprising a laminate including alternately stacked dielectric layers of a sintered compact composed of crystal particles of a dielectric porcelain composite and internal-electrode layers. The dielectric porcelain composite comprises a primary constituent containing barium titanate; a first accessory constituent composed of at least one of MgO, CaO, BaO, and SrO; a second accessory constituent containing silicon oxide as a major constituent; a third accessory constituent composed of at least one of V2O5, MoO3, and WO3; a fourth accessory constituent composed of an oxide of R1 (wherein R1 is at least one of Sc, Er, Tm, Yb, and Lu); a fifth accessory constituent composed of CaZrO3 or a combination of CaO and ZrO2; and a sixth accessory constituent composed of an oxide of R2 (wherein R2 is at least one of Y, Dy, Ho, Tb, Gd, and Eu). In the case of 100 moles of barium titanate, there are 0.1 to 3 moles of the first accessory constituent, 2 to 10 moles of the second accessory constituent, 0.01 to 0.5 moles of the third accessory constituent, 0.5 to 7 moles of the fourth accessory constituent (wherein the number of moles of the fourth accessory constituent is that of R1 alone), more than 0 but not more than 5 moles of the fifth accessory constituent, and more than 0 but not more than 9 moles of the sixth accessory constituent. The crystal particles constituting the dielectric layers have an average particle diameter of not less than 0.2 μm and less than or equal to 0.55 μm.
摘要:
A green sheet coating material including ceramic powder, a binder resin including a butyral based resin as the main component, and a solvent. The solvent includes a first solvent medium having a relatively low boiling point, wherein said binder resin is easy to be dissolved, and a second solvent medium having a relatively high boiling point. The boiling point of the second solvent medium is in a range of 130 to 230° C. The second solvent medium is included by 5 to 70 wt %, and more preferably 8 to 52 wt % with respect to 100 wt % of the entire solvent.
摘要:
A production method of a multilayer electronic device, comprising the steps of forming a lower side green sheet 10a including at least a ceramic powder on a supporting body 20; forming an electrode pattern layer 12a on a surface of the lower side green sheet; forming a green chip by stacking multilayer units U1 including at least the lower side green sheet and an electrode pattern layer; and firing the green chip; wherein the lower side green sheet 10a formed on the supporting body 20 includes a binder of a curable resin, and the curable resin in the lower side green sheet 10a is cured before forming said electrode pattern layer 12a on the lower side green sheet.