摘要:
The present invention provides an optical scanner including a horizontally arranged base plate, a light source unit rigidly mounted on the base plate and adapted to emit a beam of light, an optical scanning unit for scanning the light beam in a repetitive cycle and an optical system unit for conducting the scanning beam to a desired surface to be irradiated, the optical scanning unit including a unit base, a torsion bar rigidly supported on the unit base at the opposite ends, a rotor rigidly mounted on the twistable portion of the torsion bar and having a mirror for reflecting the light beam, an electromagnetic drive mechanism for applying a rotational drive force to the rotor and a unit-side mirror for further reflecting the reflected light from the mirror, the optical scanning unit being arranged such that the torsion bar is disposed parallel to the base plate, the light beam being scanned along a plane perpendicular to the base plate on the rotation of the rotor and the reflected beam being scanned along a plane substantially parallel to the base plate through the unit-side mirror.
摘要:
An image pickup apparatus comprising an array of unit cells, vertical signal lines, and a control circuit. The unit cells are arranged in rows and columns. Each unit cell has a light-receiving device for receiving light and generating an electric charge corresponding to the light, a charge-accumulating section for accumulating the electric charge generated by the light-receiving device, a transfer device for transferring the electric charge from the light-receiving device to the charge-accumulating section, and a charge-limiting device for limiting the electric charge accumulated in the charge-accumulating section. The vertical signal lines extend along the columns of unit cells, respectively, each for receiving a electric data item corresponding to the electric charge accumulated in the charge-accumulating section of any unit cell of the associated column. The control circuit controls each of the unit cells, causing the charge-limiting device to limit the charge generated by the light-receiving device during a first period and transferred to the charge-accumulating section through the transfer device. The charge generated by the light-receiving device during a second period following the first period and transferred to the charge-accumulating section through the transfer device is added to the electric charge accumulated in the charge-accumulating section.
摘要:
In a solid state image sensor device comprising a cell area wherein unit cells each having photoelectric diodes are arranged in a matrix form on a semiconductor substrate, the cell area being composed of a photo-sensitive pixel region for sensing an image, and an optical black pixel region for defining an optical black level, and a vertical shift register for selecting the unit cells of the image sensing cell array, in a group along each of horizontal lines, and vertical signal lines, each of which reads each of signals from the unit cells selected by turning on an address register by means of the vertical shift register, the vertical signal lines in the optical black pixel region are connected with each other through a wiring. Since the vertical signal lines in the optical black pixel region are connected with each other by a wiring, even if outputs from an optical black pixel region vary in the pixels, the outputs are made averaged and uniform and a variation in fixed pattern noises between the horizontal lines are reduced.
摘要:
The liquid crystal display of the present invention includes: a first insulating substrate as an array substrate; display pixels formed in such a manner as to be arranged in array like shape on the first insulating substrate, said display pixels having pixel electrodes electrically connected to each other; a counter substrate formed on a second insulating substrate on which common electrodes are formed; a liquid crystal layer interposed between the first insulating substrate and the second insulating substrate, the first insulating substrate and the second insulating substrate being bonded each other; a transfer electrode for supplying a common electrical potential to common electrodes on the second insulating substrate through a conductive material; wherein the transfer electrode is formed by patterning a conductive thin film that has been formed by the last conductive film forming process of the first insulating substrate; wherein a second conductive metal film, which has been formed in the second conductive film forming process of the first insulating substrate, and is connected to the common electrode potential, and the conductive thin film are connected to each other on the periphery of the transfer electrode through a contact hole or through a direct contact, and the conductive thin film is directly formed on the first insulating substrate at one portion of the center portion of the opening of the transfer electrode.
摘要:
A pneumatic tire comprises a carcass ply extending between bead portions and is turned up around a bead core in each bead portion to form two turnup portions and a main portion therebetween; each of the turnup portion extends radially outwardly and adjoins the main portion from a certain height above the bead core; a space is surrounded by the carcass ply main portion, and each turnup portion and the bead core is filled with a small size bead apex rubber or a gas; and the bead portion is provided between the carcass ply and the bead core with a bead core cover for preventing the carcass cords from direct contacting with the bead core.
摘要:
A semiconductor circuit includes: a first stage block including first stage dynamic circuits, configured to output a predischarged result to blocks cascade connected to later stages, each of the first stage dynamic circuit includes predischarge elements connected to dynamic nodes of the first stage dynamic circuits to predischarge the dynamic nodes, configured such that the dynamic nodes are precharged with a predetermined cycle; a predischarge signal generating circuit configured to generate a predischarge signal to actuate the respective predischarge elements before precharge timing of the dynamic nodes of the first stage dynamic circuits; and next stage blocks including next stage dynamic circuits, configured to output predischarge results to blocks cascade connected to later stages, each of the next stage dynamic circuit configured to input the predischarge result of the previous block so as to predischarge dynamic nodes, configured such that the dynamic nodes are precharged with a predetermined cycle.
摘要:
A color image sensing system includes a CCD image sensor with an optical color filter. A CCD driver is provided to electrically drive the image sensor, which is attached to a vibration table serving as a swing-driver for moving the image sensor along a horizontal direction such that each cell of the image sensor shifts, in a frame period including first and second field periods, between four different sampling positions substantially aligned in the horizontal direction. During each field period, each cell is positioned at two sampling positions, wherein a brightness signal component is produced at one sampling position and color signal components are produced at these sampling positions. The distance between two sampling positions at which the brightness signal components of the first and second field images are produced is set to be half the horizontal pitch of the cells of the image sensor. The remaining two sampling positions of the four sampling positions are apart from each other by one-and-half times the horizontal cell pitch. A color frame image is thus reproduced by electrically adding the first and second field images to increase the number of picture elements to more than the actual number of cells, thereby improving the horizontal image resolution of the frame image and minimizing the generation of color moire in the frame image. The swing-drive operation of the image sensor is repeated in synchronism with the frame period.
摘要:
A solid-state image sensor has an electrically floating carrier detecting electrode formed on a substrate, into which the signal carriers are transmitted, a sense amplifier circuit detecting the variation in a voltage of the electrode at the time of transferring the carriers, and a resetting electrode for resetting the potential of the electrode to a predetermined potential at every read-out period of the picture element section. A circuit arrangement for removing noise is provided with two switches which alternately become conductive in response to control pulse signals. The first switch becomes conductive during a first period within one picture element period. During the first period the CCD output signal contains an effective image signal component. The second switch becomes conductive during a second period during which the CCD output signal contains a reset noise component, thereby forcibly fixing the level of the reset noise signal to a DC reference potential so that reset noise can be removed.
摘要:
A solid-state image sensing device, such as an interline-transfer type charge-coupled device (IT-CCD), produces signal carriers in response to incident light and generates an image pickup signal. One frame of the image signal is formed of two fields. The CCD chip is coupled to fixed bimorph piezoelectric vibrators by which it is given a wobbling-swing drive during image pickup. This wobbling-swing drive is controlled by a vibration controller. This vibration controller controls the vibration mode of the bimorph piezoelectric elements to apply a first vibration (swing vibration) to the CCD such that each pixel cell is displaced to a different sampling position in the plurality of field periods included in one frame period for image pickup, and applying a second vibration, i.e., a swing vibration with wobbling superposed, to the CCD such that each pixel cell is wobbled while picking up an image in each sampling position, which is positioned in each field period.
摘要:
A charge transfer apparatus comprises a pulse generator, a drive circuit for sending forth drive signals having a plurality of voltage levels in accordance with the pulse signals produced from the pulse generator, and a charge coupled device of the frame transfer type which is actuated by the drive signals and in which bias charges are previously injected into the potential wells of the light receiving section. The drive circuit comprises an analog multiplexer for selectively sending forth a D.C. voltage signal in accordance with the pulse signal, during the vertical blanking period, injects an excess amount of bias charges into the potential wells and raises the bottoms of the potential wells to let an excess amount of bias charges overflow the potential wells for combination with holes.