摘要:
A camera system includes a camera body including a photometering device and an external operating device, and a photographing lens which is detachably attached to the camera body, the photographing lens including an aperture setting device for selecting an auto aperture setting and at least one fixed aperture setting. A full-aperture photometering operation is performed when the aperture setting device is positioned at the auto aperture setting, and a stop-down photometering operation is performed in response to an operation of the external operating device when the aperture setting device is positioned at the fixed aperture setting.
摘要:
A setting apparatus for a camera includes a first switch having a plurality of stop positions; a second switch; and a shutter speed setting device which can select a desired shutter speed from a plurality of shutter speeds set at predetermined steps in accordance with the stop positions of the first switch. The shutter speed setting device can modify the shutter speed (which has been selected via the stop positions of the first switch) by a step smaller than the predetermined steps via the operation of the second switch.
摘要:
A flash case, in which a flash is provided, is automatically moved to an up position, when a user selects a flash mode in a state where the flash case is at a down position, when a user begins to forcibly raise the flash case by hand in a state where the flash case is at the down position, or when the flash case is at the down position in a state where a photometric operation starts in an auto-flash mode. The flash case is automatically moved to the down position, when an external force is added to the flash case at the up position.
摘要:
A camera system includes a camera body including a photometering device and an external operating device, and a photographing lens which is detachably attached to the camera body, the photographing lens including an aperture setting device for selecting an auto aperture setting and at least one fixed aperture setting. A full-aperture photometering operation is performed when the aperture setting device is positioned at the auto aperture setting, and a stop-down photometering operation is performed in response to an operation of the external operating device when the aperture setting device is positioned at the fixed aperture setting.
摘要:
Methods of treating movement disorders by administering an effective amount of one or more adenosine A2A receptor antagonists to a patient in need thereof and methods of decreasing the adverse effects of L-DOPA in patients receiving L-DOPA therapy in the treatment of Parkinson's disease. Also, methods and compositions for treating Parkinson's disease patients with sub-clinically effective doses of L-DOPA with an effective amount of one or more adenosine A2A receptor antagonists, optionally with a dopamine agonist and/or a COMT inhibitor and/or a MAO inhibitor.
摘要:
A remote control auto-focus camera system includes a camera body; a transmitter provided separately from the camera body, wherein the transmitter transmits a remote control signal; a focusing device, a photometering device and an exposure device, provided in the camera body; a photographing operation member, provided on the camera body, which is adapted to operate both the photometering device and the focusing device upon a first operation thereof and to operate the exposure device upon a second operation thereof; and a controller adapted to operate the photometering device and the exposure device in this order without operating the focusing device upon receipt of the remote control signal transmitted.
摘要:
A method is disclosed for performing data communication between a pair of circuits. The data communication is established by serially transmitting information which includes pulse signals. In executing the method, a reference time is determined as an instant of a first level change in a first direction of a pulse signal output from one of the circuits to the other. A judgement is made as to whether a first bit of data is a "1" or a "0" in accordance with a time period extending from the reference time to an instant of a subsequent level change in the first direction following the reference time. The instant of the subsequent level change in the first direction is determined as a reference time relative to the next bit of data in the pulse signal. The data of a predetermined number of bits is continuously transmitted by repeatedly establishing reference times and judging the value of a bit based on the time period which extends from the reference time to a subsequent level change.
摘要:
The oscillation wave signal generated during lens stop-down is amplified by an adjustable gain amplifier the gain of which is controlled in accordance with the peak value of the oscillation wave signal detected during a predetermined time period, to thereby maintain a substantially constant oscillation wave signal amplitude during lens stop-down.
摘要:
A photoelectric amplifier comprising a photodiode having an anode connected to a gate of a first FET and a cathode connected to a gate of a second FET, with the second FET having a source-gate interconnection so as to be self-biasing. The photodiode cathode is connected to a high impedance feedback loop, including an output transistor, which is connected back to the photodiode anode. In a preferred embodiment, further included is a feedback circuit gain controlling transistor having a base driven by the feedback circuit and a current electrode connected to the source of the first FET.
摘要:
The present invention is directed to methods of treating movement disorders by administering an effective amount of one or more adenosine A2A receptor antagonists to a patient in need thereof. The present invention also provides methods of decreasing the adverse effects of L-DOPA in patients receiving L-DOPA therapy in the treatment of Parkinson's disease. The present invention further provides methods and compositions for treating Parkinson's disease patients with sub-clinically effective doses of L-DOPA by combining L-DOPA treatment with an effective amount of one or more adenosine A2A receptor antagonists (i.e., L-DOPA sparing effect). The present invention further provides methods of effective treatment of Parkinson's disease by co-administering at least one adenosine A2A receptor antagonist, L-DOPA and a dopamine agonist and/or a COMT inhibitor and/or a MAO inhibitor. The present invention further provides methods of prolonging effective treatment of Parkinson's disease by administering an adenosine A2A receptor antagonist singly or together with a dopamine agonist, and/or a COMT inhibitor, and/or a MAO inhibitor without prior or subsequent administration of L-DOPA, delaying or removing on-set of L-DOPA motor complication.