Abstract: A vehicle airbag device is provided, the vehicle airbag device including (1) an airbag that is folded and stowed inside an airbag case, the airbag being inflated and deployed on being supplied with gas, (2) a mid-collision gas supply section that supplies gas into the airbag during a vehicle collision, and (3) a pre-collision gas supply section that, in a case in which it has been determined prior to a vehicle collision that a vehicle collision is unavoidable, supplies gas into the airbag at a lower temperature than a temperature of gas supplied into the airbag from the mid-collision gas supply section.

Abstract: A vehicle pre-crash seat belt device includes: a buckle moving mechanism that moves a buckle, with which a tongue that has a webbing inserted therein engages, between a normal position and a raised position that is further toward a seat upper side than the normal position; a retractor that includes: a spool and a lock mechanism that locks rotation of the spool in the pull-out direction, and that releases the locked state by causing rotation of the spool in the take-up direction; and a controller that, due to a signal from a collision prediction sensor that predicts a collision of a vehicle, causes rotation of the spool in the take-up direction and increases tension acting on the webbing, and actuates the buckle moving mechanism to move the buckle from the normal position toward the raised position in a case in which the vehicle collision has been avoided.

Abstract: A vehicle airbag device is provided, the vehicle airbag device including (1) an airbag that is folded and stowed inside an airbag case, the airbag being inflated and deployed on being supplied with gas, (2) a mid-collision gas supply section that supplies gas into the airbag during a vehicle collision, and (3) a pre-collision gas supply section that, in a case in which it has been determined prior to a vehicle collision that a vehicle collision is unavoidable, supplies gas into the airbag at a lower temperature than a temperature of gas supplied into the airbag from the mid-collision gas supply section.

Abstract: A screen is provided with microcapsules and a base material. The microcapsules each contain encapsulated liquid inside a capsule membrane. The microcapsules are planarly arranged on the base material. The encapsulated liquid includes light diffusion particles for scattering light, and a dispersion medium for dispersing the light diffusion particles. In a cross sectional area of the microcapsule projected in the direction perpendicular to the surface of the base material on which the microcapsules are planarly arranged, the ratio of the area of the encapsulated region to the area of the microcapsule ranges from 0.9025 to 0.990.

Abstract: A vehicle pre-crash seat belt device includes: a buckle moving mechanism that moves a buckle, with which a tongue that has a webbing inserted therein engages, between a normal position and a raised position that is further toward a seat upper side than the normal position; a retractor that includes: a spool and a lock mechanism that locks rotation of the spool in the pull-out direction, and that releases the locked state by causing rotation of the spool in the take-up direction; and a controller that, due to a signal from a collision prediction sensor that predicts a collision of a vehicle, causes rotation of the spool in the take-up direction and increases tension acting on the webbing, and actuates the buckle moving mechanism to move the buckle from the normal position toward the raised position in a case in which the vehicle collision has been avoided.

Abstract: A screen is provided with microcapsules and a base material. The microcapsules each contain encapsulated liquid inside a capsule membrane. The microcapsules are planarly arranged on the base material. The encapsulated liquid includes light diffusion particles for scattering light, and a dispersion medium for dispersing the light diffusion particles. In a cross sectional area of the microcapsule projected in the direction perpendicular to the surface of the base material on which the microcapsules are planarly arranged, the ratio of the area of the encapsulated region to the area of the microcapsule ranges from 0.9025 to 0.990.

Abstract: A laser light source device has a laser light source for emitting a laser beam, a laser driver for driving the laser light source, a light-collecting lens for collecting the laser beam and reflecting a part of the laser beam, an optical sensor for receiving a reflected laser beam which has been reflected by the light-collecting lens and outputting a detection signal corresponding to intensity of the reflected laser beam, and a controller for controlling driving of the laser light source by the laser driver in accordance with the detection signal, and the light-collecting lens is disposed in a eccentric-rotated state so that an optical axis of the light-collecting lens has a tilt with respect to a central ray of the laser beam being incident on the light-collecting lens.

Abstract: A reflection surface (1a) of a mirror (1) has a rotationally-symmetrical shape about an optical axis (110). The mirror (1) is rotatably supported by a pivot supporting portion (41) on the position of the optical axis (110) of the reflection surface (1a) or in the vicinity of the optical axis (110). Furthermore, the mirror (1) is slidably supported by slide supporting portions (42) at two positions on the upper part thereof. With such a configuration, the mirror (1) is supported at three points. Further, even when the mirror (1) expands and contracts due to the change in temperature or the like, the deformation of the reflection surface (1a) of the mirror (1) is prevented by the action of the slide supporting portions (42). As a result, it is possible to prevent the generation of distortion of an image projected on a screen (300).

Abstract: A transparent screen and a projection display unit capable of reducing the speckle with maintaining the brightness of the image light. A wavefront-dividing phase-modulating component 21, which divides the wavefront of the image light emitted from a Fresnel lens screen 7 and modulates the phases of the wavefronts divided, is disposed before an optical diffusing component 10. Alternatively, a spatial frequency modulating component 22, which modulates the spatial frequency of the image light diffused by the optical diffusing component 10, is disposed on the light-output side (observer side) of the optical diffusing component 10.

Abstract: A cabinet is provided in a projection apparatus including a rectangular screen (200), and an optical engine (300) that projects an image onto a back surface of the screen (200) from a lower side thereof. The cabinet includes a screen frame (100) that holds four sides of the screen (200) and has at least an upper-side frame (1) that supports an upper side of the screen (200), a bottom plate (9) that holds the optical engine (300) and has an end portion mounted to the screen frame (100), and a reinforcing stay (10b) that connects the upper-side frame (1) of the screen frame (100) and the other end portion of the bottom plate (9) along a contour of light ray (18a) projected onto the screen (200).

Abstract: A transparent screen and a projection display unit capable of reducing the speckle with maintaining the brightness of the image light. A wavefront-dividing phase-modulating component 21, which divides the wavefront of the image light emitted from a Fresnel lens screen 7 and modulates the phases of the wavefronts divided, is disposed before an optical diffusing component 10. Alternatively, a spatial frequency modulating component 22, which modulates the spatial frequency of the image light diffused by the optical diffusing component 10, is disposed on the light-output side (observer side) of the optical diffusing component 10.

Abstract: A reflection surface (1a) of a mirror (1) has a rotationally-symmetrical shape about an optical axis (110). The mirror (1) is rotatably supported by a pivot supporting portion (41) on the position of the optical axis (110) of the reflection surface (1a) or in the vicinity of the optical axis (110). Furthermore, the mirror (1) is slidably supported by slide supporting portions (42) at two positions on the upper part thereof. With such a configuration, the mirror (1) is supported at three points. Further, even when the mirror (1) expands and contracts due to the change in temperature or the like, the deformation of the reflection surface (1a) of the mirror (1) is prevented by the action of the slide supporting portions (42). As a result, it is possible to prevent the generation of distortion of an image projected on a screen (300).

Abstract: A transmission screen has a refraction total reflection Fresnel lens plate, a stray light eliminating plate, and an image display plate. The stray light eliminating plate has a condensing lens array and black stripes. The array has unit lenses arranged at an incident plane of the transparent substrate in a periodic structure in an up-and-down direction. The black stripes have transparent sections placed near condensing light points of the unit lens and opaque sections around the condensing light points of the unit lenses. The sections are alternately arranged at the outgoing plane of the transmission substrate in a periodic structure in an up-and-down direction. The image display plate has lenticular lenses in which unit lenses are arranged in a periodic structure in a horizontal direction at an incident plane of the transmission substrate of a scattering characteristic capable of scattering light fluxes.

Abstract: A projection television has a unit for reflecting OFF light not advancing toward a screen of light emitted by a reflection type light modulating element and a unit for controlling the amount of the reflecting OFF light and returns the OFF light which has not been used in a conventional device to the light source to reuse the OFF light. This configuration increases the utilization efficiency of the light and, as a result, can realize a powerful projection television having a bright projection image.

Abstract: A transmission screen has a refraction total reflection Fresnel lens plate 10C, a stray light eliminating plate 20, and an image display plate 30. The stray light eliminating plate 20 has a condensing lens array 21 and black stripes 23. The array 21 has unit lenses arranged at an incident plane of the transparent substrate 22 in a periodic structure in an up-and down direction. The black stripes 23 has transparent sections 201 placed near condensing light points of the unit lens and opaque sections 200 around the condensing light points of the unit lenses. The sections 201 and 200 are alternately arranged at the outgoing plane of the transmission substrate 22 in a periodic structure in an up-and-down direction. The image display plate has lenticular lenses 31 in which unit lenses are arranged in a periodic structure in a horizontal direction at an incident plane of the transmission substrate 32 of a scattering characteristic capable of scattering light fluxes.

Abstract: A light-source device comprising: a rod integrator having an injection end and an emitting end; a lens unit for collecting a luminous flux emitted from the emitting end; and, a diaphragm. The rod integrator forms a plurality of imaginary light-source points, each of which virtually emits the luminous flux toward the emitting end. The diaphragm is disposed in the vicinity of a plane on which the lens unit forms the images of the imaginary light-source points, and selectively blocks luminous flux emitted from each of the images of the imaginary light-source points.

Abstract: A projection television has a unit for reflecting OFF light not advancing toward a screen of light emitted by a reflection type light modulating element and a unit for controlling the amount of the reflecting OFF light and returns the OFF light which has not been used in a conventional device to the light source to reuse the OFF light. This configuration increases the utilization efficiency of the light and, as a result, can realize a powerful projection television having a bright projection image.

Abstract: An illumination apparatus and a projection type display apparatus of lower cost are provided, in which extra-axial aberrations, especially distortion and lateral aberration, are favorably corrected, and the dimensional margin of illumination is suppressed to enhance the utilization factor of light. The illumination apparatus includes a first group of lenses which includes a meniscus lens having a positive refracting power, a second group of lenses which includes first lens means having a negative refracting power and second lens means having a positive refracting power, and lens means whose surface immediately before a surface to-be-illuminated is a plane surface, whereby an illuminating light beam is caused to exit in a telecentric state.

Abstract: A UV-absorbing filter absorbs a UV component of incoming light to reduce an amount of the UV component of transmitted light. The UV-absorbing filter comprises a transparent UV-absorbing glass plate which contains a UV-absorbing substance; a transparent first and second heat-resistant glass plates which face respective surfaces of the UV-absorbing glass plate; a first and second distance pieces which are made of heat-resistant resin and which are respectively interposed between the UV-absorbing glass plate and the first and second heat-resistant glass plates, in the vicinity of an outer edge of the UV-absorbing glass plate, so as to form a space between them.

Abstract: A UV-absorbing filter absorbs a UV component of incoming light to reduce an amount of the UV component of transmitted light. The UV-absorbing filter comprises a transparent UV-absorbing glass plate which contains a UV-absorbing substance; a transparent first and second heat-resistant glass plates which face respective surfaces of the UV-absorbing glass plate; a first and second distance pieces which are made of heat-resistant resin and which are respectively interposed between the UV-absorbing glass plate and the first and second heat-resistant glass plates, in the vicinity of an outer edge of the UV-absorbing glass plate, so as to form a space between them.