摘要:
A method for forming a functional element includes a first step of forming an insulating layer composed of an insulator phase of a transition metal oxide serving as a metal-to-insulator transition material, the transition metal oxide being mainly composed of vanadium dioxide, and a second step of causing part of the insulating layer to transition to a metallic phase, in which the insulator phase differs from the metallic phase in terms of electrical resistivity and/or light transmittance.
摘要:
A lens driving device includes a lens, a moving member that supports the lens, a stationary member that movably supports the moving member, a pitch drive mechanism that drives the moving member in the pitch correction direction, and a yaw drive mechanism that drives in the yaw correction direction. The pitch drive mechanism has first and second magnets provided to the stationary member, and first and second coils provided to the moving member. The yaw drive mechanism has a third magnet provided to the stationary member, and a third coil provided to the moving member. The first and second coils are arranged on opposite sides of the lens when viewed in a third direction that is perpendicular to the pitch and yaw correction directions, and the third coil is arranged on the same side as the first coil with respect to the lens when viewed in the third direction.
摘要:
After a semiconductor element is formed and before resin sealing is performed, a surface of a scribe line between the adjacent semiconductor elements of a semiconductor wafer is scraped thinly. A laser is irradiated on a broken layer of the surface of the scribe line thus scraped thinly to recrystallize the broken layer.
摘要:
An ultraviolet-curable composition for an optical disk intermediate layer includes a urethane(meth)acrylate (a) having three or more radical-polymerizable unsaturated bonds, a (meth)acrylate (b) having four or more radical-polymerizable unsaturated bonds which is other than the urethane(meth)acrylate (a), and a monofunctional alicyclic(meth)acrylate (c), wherein a B-type viscosity of the composition at 25° C. is not more than 1,000 mPa·s. The ultraviolet-curable composition may be used for producing the intermediate layers of optical disks by using a general-purpose resin such as a polycarbonate used as a stamper.
摘要:
An ultraviolet-curable composition of the present invention, which is used for a light transmission layer of an optical disk, includes a urethane (meth)acrylate having an isocyanate structure; and at least one of a monofunctional (meth)acrylate and a difunctional (meth)acrylate, wherein the combined amount of the urethane (meth)acrylate, the monofunctional (meth)acrylate and the difunctional (meth)acrylate is at least 90% by mass of the ultraviolet-curable composition. This ultraviolet-curable composition for a light transmission layer is able to realize an optical disk that exhibits excellent durability even under conditions of high temperature and high humidity, minimal decrease in light reflectance, and excellent adhesion between layers.
摘要:
An optical disc of the present invention includes at least a light reflection layer and a light transmission layer formed on a substrate, wherein recording and reading are performed by a laser beam through the light transmission layer, the light transmission layer is formed from a cured film of a ultraviolet-curable composition containing an epoxy acrylate resin obtained by reacting a half ester compound (A), which is obtained from a lactone-adduct of a hydroxyalkyl (meth)acrylate (a1) and a dibasic acid anhydride (a2), and an epoxy resin (B), and the film thickness of the light transmission layer is from 50 to 150 μm.
摘要:
The present invention aims to provide an imaging device and a camera realizing simultaneously a high magnification zoom lens system and the miniaturization of the device. The imaging device (2) includes a first lens group (G1), a second group frame unit (42), a first group frame unit (41), a motor unit (32), a third lens group (G3), and a CCD unit (33). The first lens group (G1) takes in a light flux incident along a first optical axis (A1). The second group frame unit (42) bends the light flux incident along the first optical axis (A1) to a direction along a second optical axis (A2). The first group frame unit (41) retains the first lens group (G1), and moves the first lens group (G1) in the direction along the first optical axis (A1). The motor unit (32) drives the first group frame unit (41). The first group frame unit (41) includes a driving frame (51) movable in the direction along the first optical axis (A1), and a first group frame retaining the first lens group (G1) and able to move in the direction along the first optical axis (A1) with respect to the driving frame (51).
摘要:
It is an object of the present invention to provide a camera realizing simultaneously a high magnification zoom lens system and the miniaturization of the device. The digital camera (1) includes a first lens group (G1), a second group frame unit (42), a first group frame unit (41), a third lens group (G3), a CCD unit (33), a lens barrel (31), and an outer case (11). The first lens group (G1) receives in a light flux incident along a first optical axis (A1). The second group frame unit (42) bends the light flux incident along the first optical axis (A1) to a direction along a second optical axis (A2). The first group frame unit (41) retains the first lens group (G1), and moves the first lens group (G1) in the direction along the first optical axis (A1). The third lens group (G3) receives in the light flux bended by the second group frame unit (42). The CCD unit (33) receives the light flux passing through the third lens group (G3). The lens barrel (31) supports the first group frame unit (41) to be movable, and the second group frame unit (42), the third lens group (G3), and the CCD unit (33) are arranged thereon. The exterior portion (11) retains the lens barrel (31). When capturing an image with the up and down vertical direction of the object coinciding the up and down narrow side direction of the image to be captured of the object, direction along said second optical axis (A2) substantially coincides the horizontal direction.
摘要:
To provide a database which has plural log storage areas, and eliminates the sort in the restoration process by means of the application of logs, thereby carrying out the restoration quickly. A management server allocates DB servers to a corresponding one of plural data storage areas so as to access the corresponding one. The DB servers store data to the allocated data storage areas. When the data is referenced or updated, a log representing a data change history is stored in preset log areas for each data server. When the management server transmits a notification to change the data storage areas, area remapping logs are stored in log areas.
摘要:
There is provided a hydrodynamic bearing device with which the lubricant is prevented from leaking to the outside, and good seal performance can be maintained, and a spindle motor equipped with this hydrodynamic bearing device. The hydrodynamic bearing device comprises a shaft, a sleeve, a lubricant that fills a microscopic gap, a radial bearing portion, a thrust beating portion, and a bearing seal portion. The value of a function P1/V1, where V1 is a fluctuation volume of the sleeve in the axial direction and P1 is a capillary pressure index at a vapor-liquid interface located near the opened end of the bearing seal portion, is at least a specific value.