摘要:
The present invention provides a photodetector capable of generating highly accurate tracking and focusing error signals free of variations in light quantity caused by interference, in an optical pickup with a two-wavelength multilaser. The photodetector comprises first three light receiving areas arranged linearly to receive three light beams respectively resulting from splitting of a light beam emitted from a laser light source of a first wavelength and second three light receiving areas arranged linearly to receive three light beams respectively resulting from splitting of a light beam emitted from a laser light source of a second wavelength longer than the first wavelength. The distance between both-end light receiving areas out of the first three light receiving areas is longer than the distance between both-end light receiving areas out of the second three light receiving areas.
摘要:
The present invention has an object to provide a vehicle-mounted camera system capable of preventing the occurrence of only a smear in an area without a mask image on a picked up image, and substantially reducing a ghost and stray light. The vehicle-mounted camera system according to the present invention includes an imaging element (30a), an imaging lens (30c) disposed in front of the imaging element (30a), a superimposing means for superimposing a mask image on part of a picked up image of the imaging element (30a), and a light-shielding part (31b) arranged in a range corresponding to the mask image within the angle of view of the imaging lens (30c) for shielding part of incident light from the exterior.
摘要:
An optical pickup includes a diffraction grating partitioned into three areas, in which the phase of periodic grating groove structure in an area is successively shifted from that in the adjacent area by 90°. In the generation of a differential push-pull signal, an amplification factor K for sub push-pull signals is varied depending on the type of the optical disk. By such composition of the optical pickup, amplitude deterioration of the tracking error signal accompanying displacement of the object lens is reduced.
摘要:
An optical pickup includes a diffraction grating partitioned into three areas, in which the phase of periodic grating groove structure in an area is successively shifted from that in the adjacent area by 90°. In the generation of a differential push-pull signal, an amplification factor K for sub push-pull signals is varied depending on the type of the optical disk. By such composition of the optical pickup, amplitude deterioration of the tracking error signal accompanying displacement of the object lens is reduced.
摘要:
A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.
摘要:
A mechanic skill managing system includes a first database storing an average operation time for every kind of check/repair, the average operation time being a time required for an average mechanic with an average skill to complete the check/repair, and a second database storing a skill value indicative of skill of a mechanic, both of which are connected to a processor. The processor calculates the skill value of the mechanic based on a difference or a ratio between the average operation time stored in the first database and an actual operation time spent by the mechanic to actually complete the check/repair, and registers the skill value in the second database. Thus, the skill of the mechanic can be grasped accurately and can be applied to various operations.
摘要:
An optical pickup and an optical information recording and reproducing device in which spherical aberration correction control after a disc is loaded can be efficiently made in a short time. Before an information recording medium is loaded into a drive, an optical axis direction position of a concave lens is preset to a state so as to optimize a converging spot on a recording surface of a single-layered medium of as a first recording medium or a predetermined layer (first layer having a substrate thickness of 0.1 mm) of a medium having two or more layers to which the recording/reproduction is executed by a laser light source. After the information recording medium is loaded, if it is determined to be a second (third) recording medium to which the recording/reproduction is executed by a laser light source, setting of the optical axis direction position of the concave lens is changed.
摘要:
An information processing apparatus and method is disclosed by which images which coincide in reproduction time and atmosphere with BGM can be provided as a slideshow to a user. From sound data to be used for production of BGM, a head no-sound interval detection section detects a head no-sound interval and a tail no-sound interval detection section detects a tail no-sound interval while a tail fade-out interval detection section detects a tail fade-out interval. A play interval specification section specifies a play interval of the sound data other than the head and tail no-sound intervals, and an image content allocation section allocates photo album information and effect data to the play interval to produce vector data. A fade-out process setting section updates the vector data so that a fade-out process may be applied to images within the tail fade-out interval.
摘要:
According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.
摘要:
An information-processing apparatus containing a previously-stored first password includes an input unit, a detachable storage unit, a determining unit, a creating unit, and a storing unit. The determining unit compares an input password input at startup with the first password to determine the input password matches the first password. If the input password is determined not to match the first password, the determining unit determines whether a second password is present in the storage unit. If the determining unit determines that the second password is not present, the creating unit creates the second password. The storing unit stores the created second password in the storage unit.