摘要:
A camera with a collapsible barrel zoom lens has a lens barrel collapsing drive mechanism for putting out a lens barrel including a zoom operation member for operating a plurality of lenses for zooming by controlling the positions of the lenses from a collapsed position to a photographing waiting position in front of the camera body, a bayonet member for positioning and retaining the lens barrel on the camera body, the bayonet member being mounted on the camera body so as to be rotatable about an optical axis, a zoom driving force transmission mechanism for transmitting a zoom driving force to the zoom operation member by connecting an input gear for transmitting a driving force to the zoom operation member provided on the lens barrel and an output gear provided on the camera body, an input gear rotation inhibition member capable of engaging with the input gear while the input gear is moved to a position immediately before the position at which is connected to the output gear, the input gear rotating inhibition member being provided on the camera body, and a lock member for positioning and retaining the lens barrel in the photographing waiting position and for releasing the lens barrel from the positioned and retained state, the lock member being engaged/disengaged with the output gear by an operation of rotating the bayonet member to inhibit/allow the rotation of the output gear.
摘要:
A camera with a collapsible barrel zoom lens has a lens barrel collapsing drive mechanism for putting out a lens barrel including a zoom operation member for operating a plurality of lenses for zooming by controlling the positions of the lenses from a collapsed position to a photographing waiting position in front of the camera body, a bayonet member for positioning and retaining the lens barrel on the camera body, the bayonet member being mounted on the camera body so as to be rotatable about an optical axis, a zoom driving force transmission mechanism for transmitting a zoom driving force to the zoom operation member by connecting an input gear for transmitting a driving force to the zoom operation member provided on the lens barrel and an output gear provided on the camera body, an input gear rotation inhibition member capable of engaging with the input gear while the input gear is moved to a position immediately before the position at which is connected to the output gear, the input gear rotating inhibition member being provided on the camera body, and a lock member for positioning and retaining the lens barrel in the photographing waiting position and for releasing the lens barrel from the positioned and retained state, the lock member being engaged/disengaged with the output gear by an operation of rotating the bayonet member to inhibit/allow the rotation of the output gear.
摘要:
An optical element positioning apparatus capable of moving an optical element from a storage state to a use state and improving the accuracy of positioning the optical element to a use position on an optical path. A holding member that holds the optical element is guided by guide shafts to be movable between the storage state and the use state. The holding member is provided with guide-supporting and receiving portions through which the guide shafts are slidably inserted. The guide shafts are supported by holding portions. A degree of freedom in positioning the holding member at the use position is provided. Holding-member positioning parts of the guide-supporting and receiving portions are pressed by an urging device against ends of the holding portions, whereby the holding member is positioned and held at the use position.
摘要:
A method for fixing an optical member of an optical unit including the optical member and a holding member is provided. The holding member includes positioning portions for positioning the optical member. The optical member and the holding member are fixed to each other upon laser welding of a plurality of locations of the holding member other than the positioning portions.
摘要:
In the invention, it is possible to hear a voice and music of a portable audio device such as a portable telephone, an MD player, etc. in a hand free state without mounting an additional amplifier kind. Therefore, a plug transmitter is plugged into a cigar lighter socket arranged in a console portion or an arm of a side door. An external output terminal of a portable audio device such as an MD player is connected to the plug transmitter by an audio cable. A transmitting circuit is built in the plug transmitter, and receives electric power from the cigar lighter socket, and transmits an audio output from the portable audio device as a radio wave in a receiving frequency band of an AM radio mounted to an automobile. Thus, it is possible to enjoy music from a speaker within the automobile. If a portable telephone is connected to the plug transmitter, a talk can be carried out in a hand free state.
摘要:
An optical apparatus having a movable member movable with a stepping motor as a drive source, and movement controller for moving the movable member to a set position. The movement controller step-drives the stepping motor in one direction by a first frequency so that the movable member may bear against a stopper member, and after the bearing of the movable member against the stopper member is discriminated, step-drives the stepping motor by a predetermined amount in the other direction by a second frequency, which is smaller than the first frequency, and the position of the movable member in that state is defined as the set position.
摘要:
An apparatus for indicating the quantity of fuel in a vehicle. A variable resistance device, consisting of a bar resistor having its ends short-circuited and a slide, provided with a float, mounted on a guide bar, converts changes in fuel quantity into changes in electrical resistance which are indicated by a fuel gauge. The variable resistance device has a non-linear change in resistance with the maximum resistance when the slide is positioned at the middle part of the resistor. The pointer of the fuel gauge moves in one direction and then reverses direction in response to the non-linear resistance change, with the one-half tank level being the turning point. A lamp in the fuel gauge is actuated by a detection switch when the one-half tank level is reached so that the lamp indicates to the vehicle operator that the gauge is measuring the remaining one-half of the fuel.
摘要:
An image pickup apparatus including a lens barrel with a bending optical system, in which a reflection optical element is movable between a storage state and a photographing state. When a rotary cylinder that retains a lens group to which light beams from an object are incident is being driven by a drive source to advance and retreat between a storage state and a photographing state, the coupling between a cam mechanism for rotary cylinder operation and a driving force transmission gear train for optical element operation is automatically established and released, whereby the operation for moving the reflection optical element between the storage state and the photographing state can be achieved by a single drive source.
摘要:
This invention can appropriately control the relationship between the electronic zoom magnification and the resolution of a displayed image in electronic zoom. An image capturing apparatus includes an image sensor which photo-electrically converts an image of an image sensing field formed by a photographing optical system, an extracting unit which extracts a part of the video image generated upon being photo-electrically converted by the image sensor, an adding unit which adds signals of respective pixels, the number of which corresponds to the luminance of the image sensing field, of a plurality of pixels of the image sensor, and a limiting unit which limits the extraction range of the video image extracted by the extracting unit, in accordance with the number of pixels added by the adding unit.
摘要:
An image pickup apparatus including a lens barrel with a bending optical system, in which a reflection optical element is movable between a storage state and a photographing state. When a rotary cylinder that retains a lens group to which light beams from an object are incident is being driven by a drive source to advance and retreat between a storage state and a photographing state, the coupling between a cam mechanism for rotary cylinder operation and a driving force transmission gear train for optical element operation is automatically established and released, whereby the operation for moving the reflection optical element between the storage state and the photographing state can be achieved by a single drive source.