Abstract: An optical pickup device such that the driving force of the drive unit provided on the same optical base as that of the objective lens exerts no adverse influence on controlling of the objective lens is provided. The optical pickup device 1 has an objective lens 11 that condenses laser light onto an optical disk 3, a first drive mechanism 15 that moves the objective lens 11 on the optical base 6, a second drive mechanism 8 that moves a movable member 9 different from the objective lens 11 on the optical base 6, first control means 27 that outputs a first driving signal TDS to operate the first drive mechanism 15, and second control means 25 that outputs a second driving signal EDS to operate the second drive mechanism 8. A derivative value of the second driving signal EDS is added to the first driving signal TDS and inputted to the first drive mechanism 15.

Abstract: Provided is a highly reliable optical recording head which has a small fluctuation of a quantity of light applied on a recording medium due to temperature. The optical recording head is provided with a light guide section for guiding light applied from a light source, a slider relatively moving to the recording medium, and a light transmitting section, which is arranged on the slider, transmits the light outputted from the light guide section and outputs the light toward the recording medium. The optical recording head is further provided with an adhesive layer, which is sandwiched between the light transmitting section and the light guide section and fixes the positions of the light transmitting section and the light guide section, and an elastic cohesive layer, which is sandwiched between the portions other than the light transmitting section of the slider and the light guide section.

Abstract: Provided is a magnetic recording device which can perform high density magnetic recording by simple constitution. The magnetic recording device is provided with a disk driving device for rotating a magnetic disk; a head having a heating section for heating a circular track of the magnetic disk and a recording element for applying a magnetic field modulated by an electric signal to the magnetic disk; and a head drive device for circularly moving the head in the radius direction of the magnetic disk by rotating about a driving shaft. The recording element has a magnetism applying section that traverses any track heated by the heating section in the radius direction of the magnetic disk.

Abstract: Provided are ultrasonic actuators and magnetic recording apparatuses that are stably equipped with superior driving performance without making the apparatus complex or raising cost. By providing an approximately equilateral triangular shaped vibrating member provided with piezoelectric deformation members that expand and contract upon the application of a driving signal, and a moving member that is in pressure contact with the three vertices of the vibrating member to cause relative movement with respect to the vibrating member. The moving member is caused to move relative to the vibrating member due to elliptical vibrations in the same rotational direction in basically the three vertices of the vibrating member due to a deformation vibration of the piezoelectric deformation parts.

Abstract: A user preference information data structure which is capable of classifying and setting user's preference information regarding multi-media contents with multiple items to thereby provide users with user's request-based whole or partial multi-media information, and a method for providing multi-media information by using the user preference information data structure. The multiple item user preference information data structure for multi-media contents comprising: single item user preference information for single items related to the multi-media information; and multiple items user preference information for multiple items formed by combining the single items.

Abstract: An illumination optical system has: a light source, a diffusion member, and a rod integrator, and illuminates an image display surface of a display element. The light source emits an illumination beam having a flat cross section. The diffusion member isotropically diffuses the illumination beam. The rod integrator uniformizes spatial energy distribution of the illumination beam put into a diffused state by the diffusion member.

Abstract: Novel polypeptides, designated Apo-2, which are capable of modulating apoptosis are provided. Compositions including Apo-2 chimeras, nucleic acid encoding Apo-2, and antibodies to Apo-2 are also provided.

Abstract: Information light modulated and emitted by a modulation element is led to a recording medium through a Fourier transform optical system and an optical path shifter. An interference image is recorded on the recording medium by interference of the information light and reference light. A deflection unit of the optical path shifter has a pair of prisms. Optical path of information light transmitted through the respective prisms are shifted in parallel in a direction perpendicular to an optical axis of the Fourier transform optical system. By rotating the deflection unit around the optical axis, it is possible to shift the optical path of the information light around the optical axis while shifting the optical path in the direction perpendicular to the optical axis. Therefore, it is unnecessary to perform complicated control and it is possible to multiply record an interference image accurately with an information recording apparatus having a simple structure.

Abstract: A laser optical device, having: a laser light emitting section to emit laser signal light modulated by information; a laser light receiving section to receive the laser signal light emitted from the laser light emitting section; a light condensing optical unit to conduct the laser signal light emitted from the laser light emitting section to the laser light receiving section; an actuator to move the light condensing optical unit; a light intensity detecting section to detect an intensity of the laser signal light conducted to the laser light receiving section; and a control section to control drive of the actuator so as to align the laser signal light conducted by the light condensing optical unit to the laser light receiving section; wherein the control section drives the actuator in a predetermined period which synchronizes with a predetermined signal included in the laser signal light.

Abstract: A network management method and system is provided that issues a digital certificate easily and safely. A digital certificate is issued to a personal computer that is to newly join a network by the following method. A provisional authentication server issues a first digital certificate that is a provisional certificate of the personal computer. The personal computer enters the first digital certificate and a private key corresponding thereto. The personal computer and a formal authentication server establish a connection for encryption communication based on the first digital certificate. After establishing the connection, the formal authentication server generates a second digital certificate that is a formal digital certificate of the personal computer. Further, an experimental network independent of the network is prepared and participation of a personal computer having the first digital certificate into the experimental network is allowed.

Abstract: In an embodiment, a power converter system includes a plurality of variable frequency power converters and a plurality of synchronization circuits. Each variable frequency power converter has a switching frequency. Each synchronization circuit is associated with a respective one of the plurality of variable frequency power converters. A control circuit is coupled to and coordinates the plurality of synchronization circuits. The plurality of synchronization circuits and the control circuit are operable to synchronize the switching frequencies of the variable frequency power converters to each other.

Abstract: Methods, systems, and apparatus, including computer program products, for changing digital broadcast channels. In one implementation, upon receiving a request for switching to a new channel in a digital broadcast receiving device, the device switches from a power saving mode, in which the device processes time-slices only for the currently selected broadcast channel, to a channel changing mode, in which broadcast data is buffered for more than one broadcast channels in anticipation of channel surfing. In another implementation, the user's perception of the channel change delay is mitigated by displaying channel information about the newly selected channel.

Abstract: The optical glass of the invention comprising: SiO2: 10 to 30%, B2O3: 15 to 35%, Li2O: 0 (inclusive) to 10%, Na2O: 0 (inclusive) to 5%, and K2O: 0 (inclusive) to 5% provided that Li2O+Na2O+K2O: 0 to 15%; MgO: 0 (inclusive) to 25%, CaO: 0 (inclusive) to 25%, BaO: 0 (inclusive) to 25%, SrO: 0 (inclusive) to 25%, and ZnO: 18 to 55% provided that MgO+CaO+BaO+SrO+ZnO: 18 to 55%; and La2O3: 5 to 20%. This optical glass does not substantially contain poisonous materials such as lead and arsenic. This optical glass has given optical constants, has a low Tg, a low TL and a good devitrification resistance, and is suitable for press molding.

Abstract: An authentication system comprises: a generating part for generating face information including at least one of three-dimensional shape information and two-dimensional information in the face of a first person to be authenticated on the basis of measurement information of the first person; a model modifying part for modifying a standard model of a human face by using the face information, thereby generating an individual model of the face of the first person; a calculating part for calculating a first model perfection level as a perfection level of the individual model on the basis of reliability of the face information; an extracting part for extracting first feature information as feature information of the first person from the individual model; an obtaining part for obtaining second feature information as feature information of a second person to be compared which is pre-registered; and an authenticating part for performing an authenticating operation on the first person by using the first model perfectio

Abstract: A projection optical system that receives light from a display element to project an image displayed by the display element onto a screen with enlargement at a varying magnification achieved by varying the projection distance to the screen has: a refractive optical system composed of one or more refractive lenses and having a positive optical power; and a concave-surfaced mirror disposed to the screen side of the refractive optical system and having a plane-symmetric reflective surface. The projection optical system includes at least one optical element designed to be movable for focusing. The projection optical system forms an intermediate image between the refractive optical system and the concave-surfaced mirror. Moreover, a prescribed conditional formula is fulfilled.

Abstract: The invention relates to processes for producing an immunoglobulin or an immunologically functional immunoglobulin fragment containing at least the variable domains of the immunoglobulin heavy and light chains. The processes can use one or more vectors which produce both the heavy and light chains or fragments thereof in a single cell. The invention also relates to the vectors used to produce the immunoglobulin or fragment, and to cells transformed with the vectors.

Abstract: An image process capable of rapidly detecting and correcting the inclination of a document image is executed as follows. Dots are put on a document image at even intervals and the document image is printed to provide a printed object. The printed object is read with a scanner to provide image data. Processes are performed on the image data with a plurality of filters for detecting dots corresponding to a plurality of inclinations to calculate the degrees of agreement between the data and the filters. The inclination angle of a filter exhibiting a highest degree of agreement is set to the inclination angle.

Abstract: In an image blur correction device and an imaging device according to the present invention, a holder for holding an optical component, which is displaced for correcting an image blur, is supported by one or more balls, so as to be freely displaced by sliding on the base, and has a structure to restrict the movement of the holder within a range, which is smaller than a mobile range normally acquired when the ball is assembled, if the ball is omitted in an assembly. Therefore the image blur correction device and the imaging device having this configuration can detect the missing of a ball in an assembly.

Abstract: An anamorphic converter includes, from a projected-surface side, a first group and a second group. The first group includes one or more lens elements and has a negative power at least in a main magnification direction. The second group includes one or more lens elements and has a positive power at least in the main magnification direction. Of optical surfaces, a last surface of the first group and a first surface of the second group: [1] have a power in both main magnification and sub-magnification directions; [2] are convex toward the projected-surface side in both main magnification and sub-magnification directions in a region having an area that is ¼ or more of an optical effective region area including a center portion of each of the last and first optical surfaces; and [3] at least one of the last and first optical surfaces is a free curved surface.

Abstract: A concave diffraction grating device, a reflective dispersion device, and a spectral device of the invention include a diffraction grating plane having an aspherical configuration, wherein the diffraction grating plane is symmetrical in a predetermined direction, and asymmetrical in a direction orthogonal to the predetermined direction in such a manner that the curvature of one end portion of the diffraction grating plane in the direction orthogonal to the predetermined direction is gradually decreased, and the curvature of the other end portion thereof is gradually increased. The concave diffraction grating device, the reflective dispersion device, and the spectral device with the above arrangement have desirable slit image forming performance with respect to all the wavelengths in a visible region, and are suitable for mass-production.