摘要:
An angular velocity sensor comprises a substrate, a vibrating member of an elongate plate formed by processing a part of the substrate, a support beam formed by processing a part of the substrate to support a center of the vibrating member in a longitudinal direction thereof, a driving device for driving both longitudinal ends of the vibrating member to vibrate in a first direction, and a detecting device for detecting vibrations of the vibrating member in a second direction perpendicular to the first direction thereby to detect an angular velocity of rotation of the substrate.
摘要:
A method and apparatus for detecting the relative positional displacement between a mask and a wafer. The mask is provided with a cantilever. The position mark is provided on the wafer so as to face the cantilever. A relative positional displacement between the mask and the wafer is detected from a deformation amount of the cantilever based on a force acting between the position mark and the cantilever upon relative movement of the position mark and the cantilever.
摘要:
A photographing apparatus comprises a plurality of optical image pickup units which converges object light and forming an optical image on a focus plane of an image pickup device and an image forming unit which forms a plurality of photographed images from optical images formed by the optical image pickup units. The optical axes of the optical image pickup units cross at one point near lenses, the optical image pickup units are disposed at an equal distance from the cross point, and the optical axes are set at a predetermined angle in such a manner that photographing fields of adjacent optical image pickup units are made contiguous with each other.
摘要:
The present invention relates to a stereoscopic image display apparatus having light source means for emitting a light beam having a predetermined shape, a transmission type display device for displaying an image, a micro optical element arranged between the light source means and the display device and having different optical effects in horizontal and vertical directions, the micro optical element irradiating the light beam emitted by the light source means onto the display device by giving directivity to the light beam to split the light beam into at least two regions, and adjusting means for adjusting an interval between the light source means and the micro optical element in correspondence with an image displayed on the display device.
摘要:
An angular acceleration sensor has a weight member, a resilient member for supporting the weight member from the both sides thereof, the resilient member being disposed on a predetermined rotational axis and supporting the weight member for rotation about the rotational axis, and an opposed member opposed to the weight member, an angular acceleration applied to the weight member being detected from a variation in the spacing between the opposed member and the weight member resulting from the rotation of the weight member
摘要:
Information is recorded by providing a recording medium having a recording layer on an electroconductive substrate transmitting an electromagnetic wave and an electroconductive optical probe arranged proximate to the recording medium, and applying a voltage between the substrate and the optical probe. The recorded information is read by irradiating an electromagnetic wave, preferably with a plurality of wavelengths, on the recording layer from the substrate side, and detecting with the optical probe an electromagnetic wave oozed out on the surface of the recording layer.
摘要:
A measuring arrangement includes forming first and second pairs of light beams each having a low frequency light beam and a high frequency light beam. Both pairs of light beams generate beat signals of the same frequency. The low frequency light beam of either pair and the high frequency of the other pair pass through a predetermined optical path to cause phase changes in the same direction. Beat signals are generated by superposing the first and second beam pair to provide measurement information on the phase changes.
摘要:
An objective lens driving device comprises a holding member for holding an objective lens, an intermediate support member spaced apart from the optic axis of the objective lens and constructed for rotation about a rotary support axis parallel to the optic axis, a parallel plate spring having one end thereof secured to the holding member and the other end thereof secured to the intermediate support member, the parallel plate spring supporting the holding member for movement only in the direction of the optic axis of the objective lens relative to the intermediate support member, and driving means for driving the holding member in the direction of the optic axis of the objective lens and a direction perpendicular to the optic axis.
摘要:
A stereoscopic image display apparatus comprising a light source for emitting light from plural apertures, an optical element array composed of an array of optical elements having different optical functions in the horizontal and vertical directions, for giving directivity to the light emerging from the apertures, and a transmissive display device for displaying a stripe image, obtained by dividing each of a parallax image for the right eye and a parallax image for the left eye in the vertical direction to obtain right stripe pixels and left stripe pixels and arranging the right and left stripe pixels alternately in a predetermined order, wherein the plural apertures are provided corresponding to each of the optical elements constituting the optical element array, for each stripe pixel, and are adapted to cause the light, passing through the right or left stripe pixel, to reach a predetermined area.
摘要:
A stereoscopic image display apparatus for stereoscopically viewing an image displayed on a display, by transmitting light through a mask pattern where plural apertures and plural light shielding portions are arranged in a predetermined pitch in the horizontal and vertical directions, transmitting the luminous flux through an optical system for illuminating the display where at least two parallax images are displayed, and leading the luminous flux based on the two parallax images displayed on the display to the right eye and left eye of a viewer respectively. The apparatus enables to give flexibility to precise adjustment during the assembly and enables the viewing of a stereoscopic image from a wide area with good quality, by setting vertical widths Vt and Vs of the aperture and the light shielding portion of the mask pattern, and horizontal widths Ht and Hs of the aperture and the light shielding portion of the mask pattern to satisfy the relationship of Vt