摘要:
A driving device includes a forming part for forming one magnetic circuit, a first coil disposed at a first driven member and a second coil disposed at a second driven member. The first and second coils are provided within the one magnetic circuit and arranged to move by being respectively supplied with currents.
摘要:
An optical apparatus having a lens driving device includes a stepping motor for driving a lens which is movable along an optical axis and a controller for driving the stepping motor. The controller selectively changes excitation for the stepping motor among a plurality of respectively different excitations.
摘要:
A light amount adjusting apparatus is constructed by a driving source, a plurality of light shielding members each having a notched portion adapted to form a light passing port, in which the light shielding member is moved by being driven by the driving source to thereby vary an area of the light passing port which is formed in the notched portion, and at least one filter provided for the notched portions of the plurality of light shielding members, in which the filter is provided so as to cover a part of the notched portion and has a first area having first light transmittance and a second area having second light transmittance lower than the first light transmittance. When the area of the light passing port which is formed by the light shielding members is in a maximum state, a relation (A3
摘要:
The present invention relates to an optical instrument such as an optical axis deflecting device or an image stabilizing device having an optical member supported for rotation about a predetermined axis and rotated about the predetermined axis to thereby deflect the optical axis of passing light, moving means adapted to move in a direction along a plane inclined by a predetermined angle from a plane perpendicular to the predetermined axis to thereby rotate the optical member about the predetermined axis, and driving means for driving the moving means. With such construction, a driving force generated by the driving means acts on that portion of the optical member which is far from the rotational shaft thereof and as a result, a driving torque for driving the optical member can be enhanced without causing the bulkiness and higher cost of the device and an increase in consumed electric power.
摘要:
A blur suppressing apparatus includes a blur suppressing device movable in an optical path, for suppressing a blur of an image transmitted along the optical path. A mechanical lock is provided for mechanically locking the blur suppressing device, and an electrical lock is also provided for electrically locking the blur suppressing device. An operation device is provided for operating the mechanical lock and the electrical lock. A control device causes the electrical lock to at least be activated or released independently from the mechanical lock in accordance with the operational state of the operation device.
摘要:
A camera apparatus has an interchangeable lens unit and a transmission line for exchange of information with the lens unit. The lens unit has at least one driving part which is arranged to change the optical condition of the lens unit. The camera system includes a control circuit which is arranged to take in, from the lens unit via the transmission line, information on at least on of the maximum and minimum possible driving speeds of the driving part; to set a driving speed of the driving part within the possible driving speed range of the driving part; and to transmit information on the set driving speed to the lens unit.
摘要:
A heat treating device including a processing vessel for exposing objects to be treated (e.g., semiconductor wafers) held in a wafer boat for a heat treatment, processing gas introduction nozzles for introducing processing gases, a cap for openably closing tightly an opening of the processing vessel; a heat retention cylinder on which the boat is mounted; and a gas introduction opening, a gas passage, and a gas release opening opened in the heat retention cylinder. Processing gases introduced from the introduction nozzles are taken into the heat retention cylinder through the gas introduction opening and released radially from the gas release opening in the top thereof. The heat retention cylinder has the function of introducing the processing gases, whereby high intra-plane film thickness uniformity can be retained without rotating the wafer boat.
摘要:
An optical apparatus arranged to move a lens by using a stepping motor as a driving source, includes detecting mechanisms disposed at a plurality of positions for detecting a plurality of reference positions of the lens, respectively, and a position detecting circuit for finding an absolute position of the lens on the basis of the number of driving steps of the stepping motor relative to each of the plurality of reference positions.
摘要:
An optical apparatus comprises a first lens for effecting magnification change, a second lens provided more adjacent to the focal plane than the first lens for effecting focusing and correction during the magnification change, driving means for moving the first and second lenses along the optic axis thereof, detecting means for detecting the positions of the first and second lenses, and control means for controlling the second lens so as not to move to an area in which continuous in-focus cannot be maintained to an object at a close distance, during the movement of the first lens from the telephoto to the wide end.
摘要:
An optical apparatus is disclosed with which the correspondence between the movement of a movable lens and the position of an operating member can be maintained and the operability can be improved. The optical apparatus comprises a lens drive unit which drives a movable lens, an operating member operable within a predetermined movable range, and an operating member drive unit which drives the operating member within the predetermined movable range. The optical apparatus also comprises an operating member position detector detecting the position of the operating member, and a signal output unit that outputs a signal for moving the movable lens. The controller controls the drive of the lens drive unit based on a signal from the operating member position detector and controls the drive of the operating member drive unit based on the signal from the signal output unit.