摘要:
A strain sensor comprising a metal substrate, a first electrode provided on the metal substrate, a glass layer formed on the first electrode, and a second electrode and a strain detecting resistor provided on the glass layer. In the strain sensor, the insulation resistance between the metal substrate and the second electrode has been raised, and the reliability is high. It can be implemented at low cost.
摘要:
The gene recombinant according to the present invention is capable of expressing a biodegradability for chlorinated ethylene and has a recombinant DNA sequence carried on a chromosome, which sequence comprisesa phenol-hydroxylase gene originating from a phenol-metabolizable bacterium capable of bio-degrading chlorinated ethylene, wherein the phenol-hydroxylase gene comprises a gene for facilitating decomposition of chlorinated ethylene and a series of genes for decomposing chlorinated ethylene, anda promoter inserted upstream from the phenol-hydroxylase gene, and/ora terminator inserted downstream from the phenol-hydroxylase gene.
摘要:
An electromagnetically releasable shutter for a camera comprises an electromagnet (8) which is energized upon the execution of shutter releasing operation and de-energized after an exposure time corresponding to the brightness of the object has elapsed since energization, an armature lever (7) which is driven by the electromagnet (8), an actuating member (4) which starts moving to drive a diaphragm operating member (6) in a direction to open the diaphragm when the armature lever (7) is attracted by the electromagnet (8), and a shutter closing member (9) which drives the diaphragm operating member (6) in a direction to close the diaphragm when the armature lever (7) is released from the electromagnet (8). The actuating member (4) is provided with a part to restrain the operation of the shutter closing member (9) when the actuating member (4) is at the charged position. The armature lever (7) is provided with a part which enters the range of movement of the shutter closing member (9) to restrain the operation of the shutter closing member (9).
摘要:
In an automatic focusing camera capable of bringing the lens into focus by automatically detecting the distance between the object and the camera, an automatic focusing device for a camera comprises an actuating member which is operated prior to the start of shutter operation, and a retainer which retains the actuating member at the initial stage of the release operation. The retainer is adapted to cancel the retention of the actuating member prior to start of the shutter operation by the shutter releasing member. The actuating member is interlocked with a coincidence type rangefinder which detects the focus of the lens and the actuating member can be returned to its initial position interlocking with the return motion of the shutter releasing member.
摘要:
A focal point adjusting and change-over mechanism for an automatic focusing camera, including a mechanism for restricting a position of the camera photographic lens in response to a distance sensing signal, and a change-over mechanism manually operable to at least two positions including an automatic position and a manual position. The restricting mechanism is operative to provide automatic focusing of the lens when the change-over mechanism is set at a position for automatic operation, and the change-over mechanism renders the distance sensing signal or the restricting mechanism inoperative when set at the position for manual operation, and thereby manual focusing is carried out in accordance with the manually set position of the change-over mechanism in the manual position.
摘要:
An automatic focusing apparatus for use in a camera has an operating member which moves from a rest position to a depressed position. An actuating member is rotatably mounted on the operating member and a detecting member is mounted for movement from a first position to a second position and is biased normally into the first position. The actuating member enables the detecting member to move from the first to the second position in response to the movement of the operating member from the rest position to the depressed position and disengages from the detecting member when the operating member is in the depressed position to enable the detecting member to move from the second position to the first position under the action of its bias. A device produces an electric signal corresponding to the position of the detecting member and a focus scanning member is movable over its entire focus scanning range in response to the movement of the detecting member between its first and second positions. An electro-magnet is provided for stopping the movement of the detecting member during its movement from the second to the first position when the electro-magnet is actuated. A focus detecting module receives a signal from the device synchronously with the movement of the focus scanning member during the movement of the detecting member to the second position to determine the signal from the device corresponding to the in-focus position and for actuating the electro-magnet to stop the return movement of the detecting member to its first position when the signal from the device is equal to that determined for the in-focus position. In this way, the camera lens can be focused with reduced error.
摘要:
A diaphragm control device for flash photography is incorporated in a programming electric eye camera including an exposure control circuit and capable of automatically setting exposure time and diaphragm aperture according to the light of subject, the exposure control circuit has a photoconductive element and is adapted for controlling an electromagnet.The device includes a diaphragm lever operating in a fixed manner by the action of a spring to define diaphragm aperture, a control arm of a distance setting member, a diaphragm regulation lever controlled by the control arm and a change lever for interchanging first or second positions, at respective positions the diaphragm regulation lever being out of or in the turnable area of the diaphragm control lever.For daylight photography, the diaphragm regulation lever is forced by the change lever to be at the first position, and the diaphragm operating lever is controlled by an exposure control circuit to form a programming shutter adapted for automatically setting exposure time and diaphragm aperture according to the light of subject. On the other hand for flash photography, the diaphragm regulation lever is forced by the change lever to be in the second position, and the diaphragm operating lever is controlled alternatively either by said diaphragm regulation lever or by the exposure control circuit dependent on the light of subject so as to accomplish an exposure through the smaller of respective diaphragm apertures dependent on camera-subject distance and on scene light.
摘要:
An electronic camera shutter having a single spring that biases an armature lever in a direction for applying an electromagnet armature supported thereon against the electromagnet until the electromagnet, which is a part of an exposure time control circuit, is energized so that the armature is attracted. This same spring cooperates with a holding lever biasing it in a direction for engaging with the armature lever and driving it in a direction for separating the armature from the electromagnet to initiate closing of the shutter upon de-energization of the electromagnet at the end of the exposure time period controlled by the exposure time control circuit. A release lever for taking exposures has a rest position in which it holds the holding lever against the action of the spring upon actuation of the release lever the holding lever is released but the exposure time control circuit is closed by actuation of the release lever so that the electromagnet is energized and the armature is held in an attracted condition. This precludes driving of the armature lever by the holding lever although the holding lever has been released by the release lever. Upon completion of the exposure time the armature is released and the single spring drives the holding lever which separates the armature from the electromagnet and initiates closing of the shutter with the armature lever. The shutter has a safety device in that the release lever is provided with a lateral notch into which a projection on the holding lever is insertable to precule complete actuation of the release lever to preclude taking of an exposure in the event that the electromagnet is not completely energized and in which case the holding lever is immediately released when the release lever is actuated.