摘要:
A drive mechanism for a zoom lens system consisting of first and second lens groups has a movable lens barrel fixedly holding the first lens and cam structure consisting of a cam member provided on the second lens group and a cam follower member on the movable lens barrel. The movable lens barrel moves forward or rearward to shift the second lens group forward or rearward relative to the first lens group along the optical axis of the zoom lens system via the cam member so as to continuously change the focal length of the zoom lens system. The cam member is mounted on the movable lens barrel to change the curve of the cam surface relative to the cam follower member only in a middle focal length range.
摘要:
A camera with a zoom lens system having at least front and rear lens groups each comprising at least one lens, comprises a movable lens barrel holding the front lens group and being axially movable rearwardly and forwardly relative to a camera body and a moving mechanism for causing the axial movement of the movable lens barrel. The moving mechanism comprises a first cam member provided in the movable lens barrel and a rotatable lever coacting with the first cam member for causing the axial movement of the movable lens barrel, the first cam member having first and second straight cam sections for causing the axial movement of the movable lens barrel between front and rear axial positions and beyond the rear positions, respectively, and further comprises a second cam member provided in the camera body and a bell crank lever rotatably mounted on the movable lens barrel and coacting with the second cam member and the second lens group for shifting the rear lens group relative to the front lens group when the movable lens group is moved between the front and rear axial positions so as to change the zoom lens system between the longest and the shortest focal length and for moving the front and rear lens groups conjointly as a unit when the movable lens barrel is moved beyond the rear axial position, thereby collapsing the movable lens barrel at least almost fully within the camera body.
摘要:
A mode change-over device for a mode change-over device for a pre-winding type camera in which, after a loading of a film patrone in the camera and before the shooting, a pre-winding of the film is conducted to fully pre-wind the film on a spool and, when the pre-winding is finished, a mode retaining member is unlocked so as to release a mode change-over member thereby operating a mode change-over switch for a shooting mode, such as to allow an unwinding of the film in a frame-by-frame fashion for each shooting exposure, while the mode change-over member is charged by an opening of a back lid of the camera, the mode change-over device comprising; a counter adapted to operate in response to winding and rewinding of the camera; a retaining member for locking the mode retaining member when the back lid has been opened erroneously or accidentally; and a counter engaging member which prevents the retaining member from locking the mode change-over member when the counter is in the initial position, whereas, when the counter is in the counting position, operates the retaining member for making the retaining member lock the mode change-over member.
摘要:
A pre-winding type photographic camera is provided with a mode changing mechanism for changing its operational mode between a pre-winding mode in which film is drawn out from a film magazine loaded in the camera and is taken up around the spool of the camera prior to photographing, and photographing mode in which the film is rewound into the film magazine by one frame each time the film is exposed. The mode changing mechanism is arranged to set the operational mode to the pre-winding mode by, in response to the opening of the backlid of the camera, bringing a mode changing member to a pre-winding mode position, and at the same time causing a force to be charged for bringing the mode changing member to a photographing mode position, and by retaining the mode changing member in the pre-winding mode position in response to the opening of the backlid of the camera, and is arranged to change the operational mode to the photographing mode by releasing the mode changing member in response to completion of the pre-winding mode operation, thereby permitting the mode changing member to move to the photographing mode position under the charged force. The mode changing mechanism is further provided with a magazine switch which is closed in response either to insertion or removal of the magazine and is kept closed until it is opened in response to the opening of the backlid of the camera. The magazine switch is inserted into the energizing circuit of the driving motor for driving the film in the pre-winding mode operation in series with the driving motor.
摘要:
In a camera of the drop-in loading type having a film insertion opening formed at the bottom of the camera body, a device is provided for restricting a back lid, supported for pivotal opening and closing movement on the camera, to a partially opened position where the insertion opening is exposed and a guide slot is defined between the camera body and the back lid for allowing a film container with a film leader previously drawn out to be inserted therethrough. The restricting device can be released for full opening in order that the back lid is full opened to a position where the rear of the camera body is exposed to allow repairing an interior mechanism.
摘要:
A processor includes a storage unit storing an instruction, an instruction extension information register that includes a first area and a second area, an instruction decoding unit that decodes a first prefix instruction including first extension information extending an immediately following instruction written to the first area when the first prefix instruction is executed, and that decodes a second prefix instruction including the first extension information and a second extension information extending an instruction immediately following two instructions of the second prefix instruction, an instruction packing unit that generates a packed instruction including at least one of the first prefix instruction or the second prefix instruction, and the instruction immediately following the first prefix instruction or the second prefix instruction when the instruction decoding unit decodes the first prefix instruction or the second prefix instruction, an instruction execution unit that executes the packed instruction generated by the instruction packing unit.
摘要:
A plurality of register windows in a multithread processor are each provided for a corresponding thread and capable of storing data to be used for instruction processing in an arithmetic unit. A work register in the multithread processor is capable of mutually transferring data with respect to the register windows and the arithmetic unit. A multithread control unit in the multithread processor controls data transfer among the register windows, the work register and the arithmetic unit on the basis of an execution thread identifier identifying the thread to be executed in the arithmetic unit. This enables conducting the multithread processing at a high speed.
摘要:
A processing unit has an extended register to which instruction extension information indicating an extension of an instruction can be set. An operation unit that, when instruction extension information is set to the extended register, executes a subsequent instruction following a first instruction for writing the instruction extension information into the extended register, extends the subsequent instruction based on the instruction extension information.
摘要:
The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
摘要:
A processing unit includes a plurality of thread execution units each provided with a performance analysis circuit for measuring various types of events resulting from execution of instructions and a commit stack entry unit for controlling the completion of executed instructions and each executing a thread having a plurality of instructions, a commit scope register for storing instructions of completion candidates stored in each commit stack entry unit by execution by each thread execution unit and performing processing for completion of instructions included in the thread, and a thread selecting means for sending commit events of the instructions to a performance analysis circuit provided in each thread execution unit corresponding to the instructions when performing commit processing for instructions stored in the commit scope register.