摘要:
A camera shutter mechanism comprises a shutter actuating lever movable between a cocked position and a rest position to actuate a part of the camera shutter mechanism, and a cocking lever having an abutting portion for abutting the actuating lever to move the latter from the rest position thereof into the cocked position thereof. The cocking lever and the actuating lever together include a locking mechanism which releasably locks the actuating lever in the rest position. The locking mechanism and the abutting portion are arranged so that when the actuating lever approaches its rest position, it engages the abutting portion so as to rotate the cocking lever into a position in which the locking mechanism locks the actuating lever.
摘要:
A flash changeover device for a shutter is operative when the exposure operation is performed by cancelling the retention on a shutter blade control in the charged state by the operation of an actuating member which has previously been charged and is actuated by a shutter release operation. The device includes a flash system changeover member, a switching member, a synchronizing switch and wherein the switching member is oscillatably mounted on the changeover member so as to close the synchronizing switch in connection with the operation of the actuating member when the flash system changeover member is set to a first position and to close the synchronizing switch in connection with the shutter blade opening operation of the shutter blade control member when the flash system changeover member is set at a second position. The synchronizing switch has contacts having relative positions which are independent of the position of the changeover member when the synchronizing switch is in the open state.
摘要:
In an electronic program shutter having sectoral shutter blades functioning in varying both the aperture and the exposure time corresponding to the brightness of the field, a synchronizing device according to the present invention comprises a sectoral shutter blade control lever which is oscillatable and capable of opening and closing the sectoral shutter blades and is normally urged in the direction that the sectoral shutter blades keep the aperture closed, a driving member which travels in one direction according to the shutter release operation, an actuating lever rotatable about a shaft fitted on the driving member and interlocked with the sectoral shutter blade control lever, an electromagnet which is unmagnetized at an exposure completion signal given by an exposure control circuit, and an armature which operates a flash light switch and cancels the engagement between the sectoral shutter blade control lever and the actuating lever when the electromagnet is unmagnetized and the attraction by the electromagnet is cancelled.
摘要:
A shutter operating mechanism of a camera shutter which has an opening blade and a closing blade operated sequentially to open and close a shutter aperture for an exposure comprises an opening spring normally biasing the opening blade to move from a closed position in which the opening blade covers the shutter aperture to an open position in which the opening blade uncovers the shutter aperture; a second spring normally biasing the closing blade to move from a closed position in which the closing blade covers the shutter aperture to an open position in which the closing blade uncovers the shutter aperture; and a third spring normally biasing the closing blade to move from said open position to said closed position, the arrangement being such that when the shutter is charged, the opening blade and closing blade are in said closed position and when the shutter is released, the closing blade is moved under the bias of said second spring from said closed position to said open position, then the opening blade is moved under the bias of the opening spring from said closed position and to said open position, thereafter the closing blade is returned under the bias of said third spring from said open position to said closed position, thereby completing the exposure. The opening blade may then also be moved to closed position by a fourth spring.Furthermore, there are provided electrical contacts operated by the movement of the closing blade. When the closing blade is moved to uncover the aperture, the contacts are opened or closed and, after the exposure, are closed or opened again by returning movement of the closing blade to the first position.
摘要:
In a camera having an aperture and a shutter of the type having opening blades and closing blades operable sequentially to make an exposure, an opening member for actuating the opening blades is releasably coupled to a driving member which is spring biased in a direction to move the opening blades to open position to initiate an exposure. A spring bias is also applied to a closing member for actuating the closing blades in a direction to close the camera aperture and thereby terminate the exposure. As the closing blades approach closed position, the closing member actuates the connecting member so as to release the opening member from the driving member and also engages the opening member so as to move it in a direction to return the opening blades toward set or aperture-closing position. The opening blades are thereby moved at least partially toward closed position as the closing blades complete their closing movement and the transfer of energy from the closing member to the opening member serves to decelerate the closing blades at the end of their movement and thereby reduce impact.
摘要:
In a focal plane camera shutter of the type having opening blades and closing blades which are actuated sequentially to provide an exposure, the opening blades are operated by an operating member which is biased in a direction to move the blades to aperture-closing position. The opening blades are moved to open position when the shutter is released by a driving member which is biased in a direction to open the blades and is releasably connected to the operating member by a connecting member. At approximately the termination of the exposure, the connecting member is actuated to release the blade operating member from the driving member whereupon they are moved by the aforementioned bias to closed position. The camera is then reset by moving the driving member to its set position whereupon the connecting member again connects the driving member with the blade operating member. The closing blades may likewise have an operating member releasably connected to a driving member by a connecting member which is released upon termination of the exposure so that the closing blades likewise return to set position.
摘要:
A communication terminal displays thumbnails for predetermined-region images in a panoramic image and accepts a selection of a predetermined thumbnail so as to display the predetermined-region image corresponding to the accepted thumbnail. This brings about an effect that a user can easily find a desired panoramic image or a desired predetermined-region image in the panoramic image.
摘要:
The present invention relates to a method and an apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine, with a solenoid-actuated intake valve being configured to be biased into a first direction towards a first stop position of the intake valve by means of a biasing force and being configured to be displaced against the biasing force into a second direction opposite to the first direction towards a second stop position of the intake valve by means of magnetic force and to be kept at the second stop position by means of magnetic force. The method includes applying control current to the solenoid-actuated intake valve for displacing the intake valve into the second direction to the second stop position and for keeping the intake valve at the second stop position during a first time period by means of magnetic force.
摘要:
Charged particle beam apparatus arrangements in which either a first noise absorber which provides noise absorbing performance specialized for a first frequency range including the natural frequency of the charged particle beam apparatus as reference, or a second noise absorber which provides noise absorbing performance specialized for a second frequency range including the frequency of acoustic standing waves generated within the cover as reference, or both of the first and second noise absorbers is/are disposed within a cover of the charged particle beam apparatus.
摘要:
Provided is an exhaust purification system capable of clearing a blockage of a reducing agent injection valve caused by solidification of an aqueous urea solution soon after starting an engine and preventing degradation in exhaust purification efficiency when starting an internal combustion engine. An exhaust purification system with a DPF, a reducing agent injection valve, and an SCR catalyst in order from the exhaust upstream side includes: an operation state detecting unit capable of detecting starting and stopping of the internal combustion engine; a forced regeneration control unit which performs forced regeneration of the DPF; a condition establishment determining unit which determines whether there is a possibility of solidification of the aqueous urea solution when the operation state detecting unit detects that the internal combustion engine is stopped; a data storage unit which stores the determination result of the condition establishment determining unit as data; and a blockage-clearing control unit which controls a temperature raising unit for raising the temperature of the reducing agent injection valve so as to raise the temperature of the reducing agent injection valve based on the data when starting the internal combustion engine.