摘要:
An objective lens element having improved diffraction efficiency at least one of used wavelengths is provided. The objective lens element includes one surface including: a first region including an optical axis; and a second region surrounding the first region. A periodic first diffraction structure is formed on the first region, and a periodic second diffraction structure different from the first diffraction structure is formed on the second region. The objective lens element satisfies the following conditions. |A1−B1|
摘要:
In a diffractive optical element, first and second optical members are stacked, and a diffraction grating is formed at an interface between the first and second optical members. In the diffractive optical element, an absorption coefficient α (mm−1) of the first optical member and a grating height h (μm) of the diffraction grating satisfy expressions (1) and (2): α≧0.04 (1) h≦263.18×α−0.9454 (2).
摘要:
In a diffractive optical element, first and second optical members are stacked, and a diffraction grating is formed at an interface between the first and second optical members. In the diffractive optical element, an absorption coefficient α (mm−1) of the first optical member and a grating height h (μm) of the diffraction grating satisfy expressions (1) and (2): α≧0.04 (1) h≦263.18×α−0.9454 (2)
摘要:
A method for manufacturing an electric double layer capacitor comprising polarizable electrodes formed from a carbon material having graphite-like microcrystalline carbon, wherein said carbon material is stored for a predetermined period of time while holding said carbon material in contact with an electrolytic solution, and thereafter, at a temperature higher than room temperature, said capacitor is charged at least once with an end-of-charge voltage higher than an expected operating voltage of said capacitor, while applying to said electrodes, at the start of said charging, a pressure that is necessary to keep said carbon material from expanding in a thickness direction thereof during said charging.
摘要:
There is provided an aluminum electrolytic capacitor including a hollow capacitor element composed of an anode foil, a cathode foil each with an extracted lead member connected thereto, and a separator between both the foil wound into a coil, an end face of the cathode foil is projected relative to the corresponding face of the anode foil; a elastic sheet which is wound on the periphery of the capacitor element; a cylindrical metallic case having the bottom in which a fixing rod is projected on the center of the bottom for fitting into a hollow hole part of the capacitor element and one or more fixing ribs are provided on the bottom for abutting with the projected end face of the cathode foil; and a sealing plate for covering the upper opening of the metal case which has a pair of terminals formed passing through the sealing plate for connecting to extracted lead member of the capacitor element and a threaded portion for external connection; wherein the metal case has one or more annular extrusions projected inside around the case; the capacitor element is housed in the case with an electrolyte with the upper opening of the case being sealed with the sealing plate via an O-ring around the periphery of the sealing plate; and the capacitor element is partly fixed via the elastic sheet by the one or more annular protrusions inside the metal case.
摘要:
The present invention provides an objective lens, an optical head apparatus, an optical information apparatus, and an information processing apparatus that improve focal position detection accuracy. In order to reproduce information from an optical disk (28), an objective lens (25) collects a diffracted ray (15X) having a longer focal length, out of two diffracted rays (15X, 15Y), on an information recording surface (28L) via a base (28S) of the optical disk (28), and a distance (DF3) between the focal positions of the two diffracted rays (15X, 15Y) when the diffracted ray (15X) having a longer focal length is collected on the information recording surface (28S) is longer than double the distance (WD2) between the surface (25A) of the objective lens (25) and the surface (28A) of the base (28S) along the optical axis.
摘要:
An objective lens, an optical head, an optical disk apparatus and an information processing apparatus which can suppress deterioration of a focal spot caused by a drop in the diffraction efficiency are provided. An inner circumference area (111) and an outer circumference area (113) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of laser beams having a wavelength λ1 which are diffracted by the inner circumference area (111) and the outer circumference area (113), on an information recording surface of a first information recording medium; the inner circumference area (111) and a mid-circumference area (112) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of the laser beams having a wavelength λ2 which are diffracted by the inner circumference area (111) and the mid-circumference area (112), on an information recording surface of a second information recording medium; and the diffraction efficiency of the laser beam having the wavelength λ2, which is diffracted by the mid-circumference area (112) and converges on the information recording surface of the second information recording medium, is greater than the diffraction efficiency of the laser beam having the wavelength λ1 which is diffracted by the mid-circumference area (112), and converges on the information recording surface of the first information recording medium.
摘要:
A mobile agent is provided with ancestor gene information and self gene information. The self gene information is encrypted information which indicates how many generations the mobile agent is descendant from the original agent. When the mobile agent creates a clone (creates a child agent), it generates gene information of its self generation+1 and implants it in the child agent. The mobile agent moving on the network and encountering another mobile agent on a same place obtains gene information from that agent, converts the obtained gene information by a predetermined algorithm, and determines if the agents are descended from the same ancestor.
摘要:
This invention provides various GUI moderator templates symbolizing templates which are capable of classifying a complicated behavior of the mobile agent into basic behavior patterns and defining a desired behavior pattern of the mobile agent by a combination of the basic behavior patterns, and various GUI activities symbolizing an activity of issuing a request in each place where the mobile agent moves around. The operator drops the GUI moderator template and the GUI activity on the GUI builder to join them for defining the order of executing jobs. The user Can also set address information of a place of execution in the GUI activity.
摘要:
A diffractive optical element includes first and second optical members which are stacked. The first optical member includes a diffraction grating in which a plurality of raised portions each having a vertical surface and a surface inclined to the vertical surface are arranged. The second optical member includes a diffraction grating in which a plurality of recessed portions are arranged, to which the raised portions are fitted. The diffraction grating of the first optical member and the diffraction grating of the second optical member are in close contact with each other. A ridge portion of the raised portion defines a curved surface. A curvature radius R (μm) of the curved surface, a pitch P (mm) of the raised portions, and a refractive index difference Δnd between the first and second optical members satisfy a predetermined relationship.