Abstract: An airbag for head-protecting airbag device according to the present invention is normally folded and housed in an upper edge of windows including a front pillar. The airbag includes a gas admissive portion. An inflatable shielding portion of the gas admissive portion includes a plurality of protection portions, at least one of which located toward front end of the airbag acts as front protection portion, and remaining protection portions located rearward of the front protection portion act as rear protection portions. The front protection portion includes a plurality of vertical chambers juxtaposed along the front-rear direction of the vehicle, and each of the vertical chambers is arranged vertically. The rear protection portions include a plurality of horizontal chambers juxtaposed in the vertical direction, and each of the horizontal chambers is arranged along the front-rear direction of the vehicle.

Abstract: In a head protecting airbag device, an airbag includes an inflation portion and a connection port portion. The connection port portion includes: an outlet side portion having a communication port to the inflation portion at its lower end; and an inlet side portion for inserting an inflator therein. The inflator includes a body portion having a gas discharge port, and a diffuser having a gas outlet port. The diffuser is connected with the body portion so as to cover the gas discharge port, having its two ends forced into contact with the outer circumference of the body portion. The inflator is connected to a connection port portion with good sealing properties and the gas outlet port faces toward the communication port of the connection port portion and thus toward the inflation portion. This head protecting airbag device simplifies the connection structure between the inflator and the airbag while retaining the quick expansion and inflation of the airbag.

Abstract: An optical pickup apparatus couples light beams, and corrects a chromatic aberration and a spherical aberration. A coupling lens includes groups of lenses common to the light sources so as to converge a light beam from each of the light sources. An aperture changes an aperture diameter for the light beam, which has been converged by the coupling lens, in accordance with one of the light sources from which the light beam is emitted. An objective lens converges the light beam onto a recording surface of one of the optical information recording media corresponding to the one of the light sources that emits the light beam. A lens moving mechanism moves at least one group of lenses from among the groups of lenses of the coupling lens in a direction of an optical axis thereof in accordance with an aperture diameter of the aperture.

Abstract: A wavefront aberration compensation element includes a wavelength selection phase plate having a plurality of phase steps having various thicknesses at various areas, a liquid crystal layer for obtaining a prescribed wavefront aberration, and a pair of first and second electrode layers having the liquid crystal layer disposed therebetween, wherein either one of the wavelength selection phase plate and the pair of first and second electrode layers having the liquid crystal layer disposed therebetween is stacked on the other.

Abstract: The head-protecting airbag device (M1) includes an airbag (12) provided with a gas admissive portion (13) and a non-admissive portion (23). The gas admissive portion (13) includes a gas feed passage (14) for feeding inflation gas G toward both front and rearwards of the vehicle, and a plurality of vertical chambers (17) juxtaposed along front-rear direction of the vehicle. Each of the vertical chambers (17) includes a communication port at its upper end for communicating with the gas feed passage (14). The substantial lengths of a vehicle's outer wall (13b) and an inner wall (13a) of the airbag (12) are differentiated from each other by a belt (31) in the periphery (19) of the communication port (18). Thus the periphery (19) of the communication port (18) guides inflation gas (G) obliquely down and toward the vehicle's exterior (O) when inflation gas (G) flows into the vertical chamber (17) via the communication port.

Abstract: An optical system has an objective lens condensing a light beam from the light source on a recording layer selected from the plurality of recording layers of the optical disk, and leading a returning light beam reflected by the selected recording layer to a predetermined position; an aberration detecting part detecting a physical amount relative to spherical aberration based on an output signal of the photodetector; an aberration correcting part correcting the spherical aberration based on the physical amount; and a processing device carrying out at least the information reproduction o from among information recording, information reproduction and information deletion with the use of the output signal of the photodetector.

Abstract: In a head protecting airbag device, an airbag includes an inflation portion and a connection port portion. The connection port portion includes: an outlet side portion having a communication port to the inflation portion at its lower end; and an inlet side portion for inserting an inflator therein. The inflator includes a body portion having a gas discharge port, and a diffuser having a gas outlet port. The diffuser is connected with the body portion so as to cover the gas discharge port, having its two ends forced into contact with the outer circumference of the body portion. The inflator is connected to a connection port portion with good sealing properties and the gas outlet port faces toward the communication port of the connection port portion and thus toward the inflation portion. This head protecting airbag device simplifies the connection structure between the inflator and the airbag while retaining the quick expansion and inflation of the airbag.

Abstract: A head protecting airbag device of the invention is provided with an airbag which expands to cover the vehicular interior sides of a window and a pillar garnish. Near the front or rear edge of an inner panel, a guide member is so arranged in the vertical direction that its vehicular interior side is covered by the edge portion of the pillar garnish. A flexible connection member, which is slidably connected to the guide member, is connected to a portion of the airbag toward the center of the window. Moreover, the connection member pushes open the edge portion of the pillar garnish toward the vehicular interior side as the connection member slides downward along the guide member when the airbag expands.

Abstract: In a head protecting airbag device, an airbag includes an inflation portion and a connection port portion. The connection port portion includes: an outlet side portion having a communication port to the inflation portion at its lower end; and an inlet side portion for inserting an inflator therein. The inflator includes a body portion having a gas discharge port, and a diffuser having a gas outlet port. The diffuser is connected with the body portion so as to cover the gas discharge port, having its two ends forced into contact with the outer circumference of the body portion. The inflator is connected to a connection port portion with good sealing properties and the gas outlet port faces toward the communication port of the connection port portion and thus toward the inflation portion. This head protecting airbag device simplifies the connection structure between the inflator and the airbag while retaining the quick expansion and inflation of the airbag.

Abstract: A head protecting airbag device comprises an airbag folded and housed above the upper edge of a window on the interior side. The airbag includes an airbag body and a current regulating cloth. The airbag body includes: an inflation shielding portion; a gas feed passage portion arranged in the longitudinal direction of the vehicle above the upper edge of the inflation shielding portion; and one gas inlet port protruded upward from a portion of the gas feed passage portion removed from the front end and the rear end. The current regulating cloth includes an inlet side portion and an outlet side portion. The outlet side portion includes first and second gas outlet holes capable of releasing the inflating gas from the inflator to the front and the rear along the gas feed passage portion.

Abstract: A tilt sensor for detecting information related to a tilt of an object to a reference plane is disclosed. The tilt sensor includes a diffraction element disposed that diffracts an incident light at diffraction efficiency depending on the incident angle, and a photo detector that detects a diffraction light diffracted by said diffraction element and outputs an photoelectric signal. Since the diffraction efficiency of the diffraction element changes as the incident angle changes, the intensity of the diffraction light from the diffraction element changes. As a result, the photoelectric signal output from the photo detector contains the information related to the tilt of the object.

Abstract: A head-protecting airbag according to the present invention is normally folded and housed in an upper edge of windows inside a vehicle, and includes a gas admissive portion inflatable with inflation gas from inflator and a non-admissive portion admitting no inflation gas. The gas admissive portion includes a shielding portion for covering the vehicle's interior side of the windows upon deployment of the airbag. The shielding portion includes a plurality of vertical chambers each of which is located vertically upon deployment of the airbag, and at least one horizontal chamber which is located along longitudinal direction of the vehicle upon deployment of the airbag. The horizontal chamber is located between at least one neighboring pair of the vertical chambers in the vicinity of vertically middle position of the pair of the vertical chambers, thereby communicating the pair of the vertical chambers.

Abstract: To reduce damaging of an inner tube in the vicinity of a gas ejection port of an inflator. To the peripheral portion near an end on a gas ejection port side of an inflator, one end of a pipe is fixed. The pipe extends in the axial direction of an inner tube having such flexibility as a cloth, is smaller in the diameter, shorter and higher in rigidity than the inner tube. In the pipe, its leading end is thinner than a part that is an outer portion of the gas ejection port of the inflator. Further, at the peripheral portion of the end of the pipe, a rear-leading end of the inner tube is clamped by a clamp.

Abstract: An airbag for head-protecting airbag device according to the present invention is normally folded and housed in an upper edge of windows including a front pillar. The airbag includes a gas admissive portion. An inflatable shielding portion of the gas admissive portion includes a plurality of protection portions, at least one of which located toward front end of the airbag acts as front protection portion, and remaining protection portions located rearward of the front protection portion act as rear protection portions. The front protection portion includes a plurality of vertical chambers juxtaposed along the front-rear direction of the vehicle, and each of the vertical chambers is arranged vertically. The rear protection portions include a plurality of horizontal chambers juxtaposed in the vertical direction, and each of the horizontal chambers is arranged along the front-rear direction of the vehicle.

Abstract: An optical pickup device includes a light source unit an optical system which leads a return light beam to a predetermined light-receiving location and includes an object lens focusing each light beam from the light source unit to a recording surface of a corresponding storage medium and a photodetector arranged at the light-receiving location. The light source unit includes a plurality of light sources outputting light beams respectively, the plurality of light sources being arranged in proximity to each other, and a divergence-angle changing unit changing an angle of divergence of a light beam output from at least one of the plurality of light sources.

Abstract: A head protecting airbag device of the invention is provided with an airbag which expands to cover the vehicular interior sides of a window and a pillar garnish. Near the front or rear edge of an inner panel, a guide member is so arranged in the vertical direction that its vehicular interior side is covered by the edge portion of the pillar garnish. A flexible connection member, which is slidably connected to the guide member, is connected to a portion of the airbag toward the center of the window. Moreover, the connection member pushes open the edge portion of the pillar garnish toward the vehicular interior side as the connection member slides downward along the guide member when the airbag expands.

Abstract: In a head protecting airbag device, an airbag includes an inflation portion and a connection port portion. The connection port portion includes: an outlet side portion having a communication port to the inflation portion at its lower end; and an inlet side portion for inserting an inflator therein. The inflator includes a body portion having a gas discharge port, and a diffuser having a gas outlet port. The diffuser is connected with the body portion so as to cover the gas discharge port, having its two ends forced into contact with the outer circumference of the body portion. The inflator is connected to a connection port portion with good sealing properties and the gas outlet port faces toward the communication port of the connection port portion and thus toward the inflation portion. This head protecting airbag device simplifies the connection structure between the inflator and the airbag while retaining the quick expansion and inflation of the airbag.

Abstract: A head protecting airbag device comprises an airbag folded and housed above the upper edge of a window on the interior side. The airbag includes an airbag body and a current regulating cloth. The airbag body includes: an inflation shielding portion; a gas feed passage portion arranged in the longitudinal direction of the vehicle above the upper edge of the inflation shielding portion; and one gas inlet port protruded upward from a portion of the gas feed passage portion removed from the front end and the rear end. The current regulating cloth includes an inlet side portion and an outlet side portion. The outlet side portion includes first and second gas outlet holes capable of releasing the inflating gas from the inflator to the front and the rear along the gas feed passage portion.

Abstract: To reduce damaging of an inner tube in the vicinity of a gas ejection port of an inflator. To the peripheral portion near an end on a gas ejection port side of an inflator, one end of a pipe is fixed. The pipe extends in the axial direction of an inner tube having such flexibility as a cloth, is smaller in the diameter, shorter and higher in rigidity than the inner tube. In the pipe, its leading end is thinner than a part that is an outer portion of the gas ejection port of the inflator. Further, at the peripheral portion of the end of the pipe, a rear-leading end of the inner tube is clumped-by a clump.

Abstract: An air bag for a head protection air bag system has an air bag main body and an inner tube disposed along an upper edge side within the air bag main body. The inner tube has supply ports which are made to open on a lower side of a circumferential wall thereof for supplying the inflating gas into the air bag main body, and the supply ports are disposed in such a manner as to be made to open downwardly at a substantially transverse center of the folded air bag main body when the air bag main body has been folded up. At least the supply port of the inner tube disposed in the vicinity of the inflator is offset closer to the inflator side than the transverse center of an inlet port portion communicating with the supply port.

Abstract: In fractionating a gaseous mixture, e.g. an acid gas and hydrocarbon, in a column wherein, during distillation, components of the gaseous mixture tend to form a substantially azeotropic mixture, or at least one of the components of the gaseous mixture tends to freeze out, withdrawing a side stream fluid from the column during fractionation, and separating said side stream fluid, e.g. by membranes or scrubbing, so as to remove preferentially at least a portion of one of the components of the substantially azeotropic mixture, or of the at least one of the components tending to freeze out, and recycling resultant depleted side stream to said fractionating column.