摘要:
In a photographic camera with information reading function, a bar code sensor having a light projecting portion and a light receiving portion is provided in a magazine chamber in which a film magazine having a bar code plate bearing thereon information on the film is loaded. Information on the film is read by the bar code sensor on the basis of reflected light from the bar code plate while camera control information is read also by the bar code sensor on the basis of light projected from a light projecting portion of an information input system opposed to the light receiving portion of the bar code sensor. The arrangement of a signal processing circuit of the light receiving portion of the bar code sensor for processing signals obtained from light received by the light receiving portion is switched according to which of the information on the film and the camera control information is to be read so that the signal processing circuit is adapted to the signal to be processed.
摘要:
An oxide superconductor comprising a perovskite type oxide compound of thallium, strontium, calcium and copper or thallium, strontium, balium, calcium and copper is produced by absorbing thallium in a gaseous phase into a mixture of strontium oxide or strontium oxide and barium oxide, calcium oxide, and copper oxide or a mixture of compounds capable of producing these oxides upon firing. From this superconductor are provided a superconductor wire material, tape-shaped wire material, coil, thin film, magnet, magnetic shielding material, printed circuit board, measuring device, computer, power storing device and etc.
摘要:
In an optical unit of the present invention, a laser element and a glass lens are contained in a lens barrel. The ray axis of the laser beam is aligned with the optical axis of the glass lens without accidental displacement. By surely fixing the lens barrel, shift of the lens along the optical axis or variation in distance between the lens and laser element can be prevented. In contrast, a manufacturing precision of a lens barrel holding member may be lowered and low-in-cost. In order to ensure exact fixing of the lens barrel, a leaf-spring and a bonding agent are used. In this case, it is desirable that the force per unit contact length exerted by the leaf-spring onto the lens barrel be in the range of 100
摘要:
A lens position detecting device comprises at least two columns of contacts each having a plurality of contacts, the columns being disposed side by side, and a brush having a plurality of brush segments each for contacting the contacts of the corresponding one of the columns and detecting a voltage at a contact thereof. Each contact of one column is shifted by a predetermined amount from the contacts of an adjacent column. The voltage at one contact is different from that at another contact of the same column, and these different voltages detectable at the contacts of one column constitute the same group as for the other columns. The lens position is determined depending on the combination of at least two voltages detected through the brush segments. The lens positions are thus divisible into a greater number of increments at the same time that the device is composed of a smaller number of elements.
摘要:
A program shutter drive system has an ultrasonic motor for controlling an opening size of a shutter according to a programmed schedule of operation according to a brightness of a subject to be photographed. The ultrasonic motor drives the shutter to open and close according to a proper exposure determined for a subject based on a brightness of the subject by an exposure determining device. A control signal generator provides a position indicating signal and a speed indicating signal which are determined to perform a programmed schedule of operation of the shutter according to the proper exposure output. A detector is provided to output an actual position signal representing an actual opening of the shutter and an actual speed signal representing an actual speed at which the shutter opens to the actual opening size. The position and speed indicating signals are compared with the actual position and speed signals, respectively, so as to control rotation of the ultrasonic motor.
摘要:
A stepping motor drives camera shutter sectors to open and close an exposure aperture. The stepping motor is rotated at a speed corresponding to an exposure value during the time between the start position of the shutter sectors and their position when they start opening the exposure aperture. After the sectors start opening the exposure aperture, the stepping motor is rotated at a constant speed not associated with the exposure value.
摘要:
An apparatus for controlling the running of a trackless moving body. The apparatus includes a control device which comprises an adder receiving outputs from two position deviation sensors mounted on the moving body, a subtractor circuit receiving outputs from the two position deviation sensors, a first comparator receiving the output from the adder for comparing the same with a first reference value, a second comparator receiving the output from the subtractor for comparing the same with a second reference value, and a logic circuit receiving the comparison outputs from the first and second comparators for evaluating the direction of steering. Drive motors of the moving body are controlled by the control device to rotate substantially at the same speed at least when the logic circuit determines that the moving body is returning toward the correct direction.
摘要:
An apparatus for controlling the running track of a trackless moving body comprising a guide wire, a position deviation sensor unit mounted on the trackless moving body for sensing a deviation of the position of the moving body relative to the guide wire, a steering control circuit connected to the position deviation sensor unit, and a steering drive unit connected to the steering control circuit for steering the moving body. The steering control circuit comprises a first-order lag circuit receiving the output signal from the position deviation sensor unit, a subtractor receiving the output signal from the position deviation sensor unit and the output signal from the first-order lag circuit, and a comparator receiving the output signal from the subtractor. In the steering control circuit, the output signal from the first-order lag circuit is subtracted in the subtractor from the output signal from the position deviation sensor unit so as to detect the rate of variation of position deviation during a predetermined period of time, and the subtractor output signal including the information of the rate of crane position deviation is compared in the comparator with a reference setting, so that the steering drive unit is actuated depending on the result of comparison for causing approaching movement of the moving body toward the guide wire.
摘要:
A device for pressing down a document to be duplicated on a document table of an electrophotographic apparatus comprises a flexible cover which is journaled along its one edge portion and a supporting frame which supports the document cover in an opened or upright position. Near the free end of the document cover there is secured a handle or grip which engages with the supporting frame. In case of duplicating a thick document such as a book the handle can be disengaged from the frame and the thick document can be effectively pressed down on the table by means of the document cover. The document cover and the frame are detachably arranged at positions which are lower than the surface level of the document table. Documents larger than the document table can be easily duplicated by removing the document cover and the supporting frame.
摘要:
Novel glycopeptide antibiotic derivatives. These derivatives are represented by the formula (aglycon part of glycopeptide antibiotic derivative)-(Sac-NH)—RA [wherein (aglycon part of glycopeptide antibiotic derivative) is the part formed by removing the sugar part from a known glycopeptide antibiotic derivative; (Sac-NH) part is an amino sugar part or a sugar chain part containing an amino sugar; and RA represents, e.g., the formula —X1—Ar1—X2—Y—X3—Ar2 (wherein X1, X2, and X3 each represents 1) a single bond or 2) a heteroatom or heteroatom-containing group selected from the group consisting of —N═, ═N—, —NR1—, —O—, etc.; Y represents —NR2CO— or —CONR2— (wherein R2 represents hydrogen or lower alkyl), etc.)]. These derivatives have antibacterial activity against vancomycin-resistant bacteria.