Sony Corporation

The Institute of Physical and Chemical Research

Yoshiaki Ogawara

Hidemi Takakuwa

Satoru Gozu

Yasuo Ido

Minoru Oda

Shigenori Miyamoto

Masaru Matsutaka

Hiroaki Seki

Kazuo Makishima

A wide-angle shooting apparatus includes a convex surface structure which reflects light from outside, a concave surface structure having a first polarizing device which permits the light from outside to be transmitted and reflects the light reflected by the convex surface structure. The concave surface structure is positioned before the convex surface structure. The apparatus also includes a second polarizing device which permits the light reflected by the concave surface structure to be transmitted and shielding direct light beam transmitted through the concave surface structure. The second polarizing device is positioned at a part to which the light reflected by the concave surface structure is concentrated. The apparatus further includes image-shooting device which receives the light transmitted through the second polarizing device and shoots an image.

Wide-angle shooting apparatus and optical device

An imaging method and an imaging device are disclosed which use no image forming optical system. A grid system 25 including an objective grid array 22 with a plurality of coplanarly arranged grids having pitches different from each other and a detector grid array 23 having a similarly enlarged configuration of the objective grid array, and a detector array 24 constitute a detection system. An energy ray such as an X-ray which has been transmitted through the grid system 25 is detected by the detector array 24 while rotating an object 20 under observation placed on a rotary table 21. A signal processing means 28 subjects signals detected by the detector array 24 to inverse Fourier transform to synthesize an image of the object 20, and the image is displayed on a display 29.

Imaging methods and imaging devices

In a magnetic disk recorder, a displacement of recording timings of a video signal and a timebase-compressed audio signal on a master disk can be corrected on a slave disk. When an output of a master disk reproducing apparatus is a video signal, a vertical synchronizing signal from a synchronizing separating circuit is delayed by a delay time of substantially 7H (H is the horizontal period) and supplied to a phase servo circuit in a slave disk recording apparatus as a reference signal, while when the output of the master disk reproducing apparatus is the timebase-compressed audio signal, a start flag signal accompanying with the timebase-compressed audio signal is detected by a flag detecting circuit and the start flag signal thus detected is employed as a pseudo vertical synchronizing signal, which is supplied to the phase servo circuit in the slave disk recording circuit as a reference signal.

Magnetic disk recorder

A circuit for correcting vertical deflection distortion of an image displayed by a cathode ray tube is composed of first, second, third, fourth, fifth and sixth transistors, a common load connected to output electrodes or collectors of the first and fourth transistors and a variable DC source connected to a control electrode or base of the sixth transistor. A saw-tooth signal having the vertical deflection frequency is applied to a control electrode or base of the third transistor, and the first and firth transistors and the second and fourth transistors are differentially switched at a rate corresponding to the horizontal deflection frequency so as to obtain from the load a signal for correcting vertical pincushion distortion.

Circuit for correcting deflection distortion

An astable multivibrator circuit having an adjustable pulse width but constant frequency, including a pair of active elements such as transistors for being switched on and off alternately and reciprocally, and a control circuit associated therewith for controlling the multivibrator circuit to derive therefrom a controlled output pulse signal, the pulse width of which is varied without changing the frequency thereof.

Astable multivibrator having adjustable pulse width at constant frequency

A vertical deflection circuit including a Miller integrator and a Schmitt trigger circuit in combination to obtain a sawtooth wave signal at an output terminal of the Miller integrator circuit and a vertical deflection coil connected to the output terminal of the Miller integrator circuit to be supplied with the sawtooth wave signal therefrom in which the Schmitt trigger circuit is controlled by a vertical pulse signal for synchronization and the Miller integrator circuit is preferably controlled by a parabolic wave signal of the vertical scanning rate in order to compensate for or correct the non-linearity in the vertical deflection. The circuit configuration is well suited for being formed as an integrated circuit on a single semiconductor substrate.

Growing community of inventors

Tokyo, Japan

Yoshiaki Ogawara