摘要:
An optical device having a variable optical surface is given by the combination of an elastic body and a relatively rigid member having an opening and disposed to contact the elastic body to expose a part of the surface of the elastic body. The exposed surface part forms a variable optical surface, the shape of which is changed by deforming the elastic body to vary the focal length.
摘要:
An array lens comprises a member having a plurality of arranged openings, an elastic member provided in intimate contact with the member and having its surface shape deformable by an extraneous pressure, and means for imparting a force to the elastic member to deform the surface shape of the elastic member in the openings of the member.
摘要:
An optical device having an elastic body sandwiched between typically two optical surfaces, which are capable of changing relative positions through deformation of the elastic body. The two optical surfaces may be given by, for example, parallel flat plate glasses or lenses. By changing the distnace or relative positions between the two optical surfaces, focusing or correction of chromatic aberration of photographic lenses, etc. can be effected.
摘要:
Optical modulation is carried out by providing a transparent member having a surface, providing an elastomeric body disposed spaced apart from the surface, irradiating the surface with a light beam, and causing the elastomeric body to contact the surface so that the proportion of the light beam transmitted through the surface is changed.
摘要:
A variable focal length lens in which a lens comprising a transparent elastic member having a non-uniform distribution of refractive index is adapted to be deformed by an extraneous force.
摘要:
This invention relates to a stereoscopic image display apparatus comprises a display for combining and displaying, in an alternate array in a predetermined direction, plural stripe images divided from each of two parallax image for the left and right eyes; a polarizing member in which stripe-shaped polarizing parts with mutually different polarizing axes are alternately arranged respectively corresponding to the divided stripe images, wherein the divided stripe images are emitted by the polarizing member with different polarization characteristics for the left and right eyes, and the left and right eyes of an observer observing said display unit are respectively given the corresponding parts of the divided plural stripe images by the difference of the polarization characteristics whereby the observer can recognize a stereoscopic image; and an optical member provided with stripe-shaped apertures arranged in a predetermined direction, respectively corresponding to the divided stripe images.
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 microprobe is provided which comprises a single crystal provided on a part of one main surface of a substrate or a part of a thin film formed on one main surface of the substrate. The microprobe may have a single crystal having an apex portion surrounded by facets having a specific plane direction and comprising a specific crystal face. The method for preparing the microprobe and an electronic device employing the microprobe also provided which is useful for recording and reproducing.
摘要:
An apparatus capable of detecting a displacement of a probe from a track of a recording medium caused by track fluctuations and vibrations at a recording/reproducing period. For example, a probe is maintained to vibrate at a frequency and in the direction perpendicular to a data train at a amplitude smaller than the width of the data train. In this case, the amplitude of a reproduced signal of the data train changes with the displacement between the probe and the data train. An envelope signal of the reproduced signal is phase detected using as a reference signal the vibration waveform (standard signal) at frequency f.sub.o of the probe, to obtain a signal proportional to the displacement from the data train. Using this signal, it becomes possible to feedback control the probe so as to make it trace the data train.
摘要:
An encoder or an information reading device detects a scale with a probe that is vibrated at a predetermined frequency and amplitude in a predetermined direction. The angular positional relationship between the direction of probe vibration and the scale is detected according to frequency spectrum information of a detection signal obtained by detecting the scale with the vibrating probe.