A camera device includes a first IR illuminator that is configured to irradiate a first irradiation range in a capturing area with first IR light, a second IR illuminator that is configured to irradiate a second irradiation range narrower than the first irradiation range in the capturing area with second IR light, and a controller that is configured to obtain a zoom magnification of the lens and controls the irradiation of the first IR light and the second IR light in a case where the zoom magnification is equal to a predetermined zoom magnification. The controller changes a supplied current of the first IR illuminator for the irradiation of the first IR light over a first predetermined time period, and changes a supplied current of the second IR illuminator for the irradiation of the second IR light over a second predetermined time period.

A system for automated focus tracking of a sample is disclosed. The system comprises an illumination source, a set of illumination optics in an illumination path, a set of collection optics in a collection path, a first slit device in the illumination path, a second slit device in the collection path, at least one detector configured to generate an image of the sample, and a controller configured to receive through-focus information from the image, and provide corrective motion to a stage holding the sample to maintain a position of the sample at a selected focus. A method for automated focus tracking of a sample is also disclosed.

A focus adjustment control apparatus is provided which includes: a focus detection unit that calculates an evaluation value with regard to contrast of an image via an optical system to detect a focus adjustment state of the optical system; an acquisition unit that acquires from a lens barrel at least one of a maximum value and a minimum value of an image plane movement coefficient that represents correspondence relationship between a movement amount of a focus adjustment lens included in the optical system and a movement amount of an image plane; and a control unit that uses at least one of the maximum value and the minimum value of the image plane movement coefficient to determine a drive speed for the focus adjustment lens when the focus detection unit detects the focus adjustment state.

A device may include an input component and a focus control component. The focus control component may receive, from the input component, an input associated with adjusting a focus of a field of view of the device. The focus control component may determine whether an area of interest is present in the field of view. The focus control component may adjust, based on determining that the area of interest is not present in the field of view, the focus of the field of view at a focus speed associated with the input, or, based on determining that the area of interest is present in the field of view, may determine one or more parameters for modifying the focus speed, modify the focus speed based on the one or more parameters, and adjust the focus of the field of view at the modified focus speed.

A lens barrel including: a base lens barrel; and a lens holding frame configured to hold a lens and be movably held in an optical axis direction relative to the base lens barrel, in which the base lens barrel has a first contact surface, and the lens holding frame has a second contact surface, in which the first contact surface and the second contact surface abut on each other in an image pickup state and separate from each other in the optical axis direction in a retracted state, in which the lens barrel includes a biasing member configured to bias the base lens barrel and the lens holding frame in a different direction from the optical axis direction such that the first contact surface and the second contact surface abut on each other.

An optical element driving mechanism is provided, including a movable part for connecting an optical element; a fixed part, wherein the movable part can move relative to the fixed part; a driving assembly for driving the movable part to move relative to the fixed part; and a supporting assembly, wherein the movable part can move relative to the fixed part in multiple dimensions via the supporting assembly.

A lens control apparatus that controls moving of each of the first optical element and the second optical element during focusing includes a first controller that controls driving of the first optical element to move the first optical element to a first target position according to an object distance, a second controller that controls driving of the second optical element to move the second optical element to a second target position according to the object distance, and a correction value calculator that calculates a correction value for the second target position using a difference between an actual position of the first optical element and the first target position, and focus sensitivities of the first and second optical elements and calculates the correction value using a correction limit value smaller than a maximum movable amount of the second optical element from the second target position.

A drive device includes a piezoelectric element, a drive shaft that receives vibration of the piezoelectric element and vibrates along an optical axis direction of a first imaging optical system, an engagement member that is frictionally engaged with the drive shaft and is connected to the first imaging optical system, and a lens controller that controls vibration of the piezoelectric element, in which the first imaging optical system is provided to be movable in a range including at least a first position and a second position, and the lens controller performs control of moving the first imaging optical system from the first position to the second position in a case in which a signal for instructing a power of the drive device to be turned off is received.

An electronic device and method thereof are provided. An electronic device includes a UWB communication module configured to transmit a first ranging message, at a first transmission interval, for measuring at least one of a distance to or a direction of an external electronic device; a display; and a processor configured to display, on the display, an image of a first magnification in correspondence to the measured distance to and/or direction of the external electronic device; adjust the magnification of the image to a second magnification; and control, based on the second magnification, the UWB communication module to transmit a second ranging message, to the external electronic device, at a second transmission interval.

A lens apparatus having a focus lens can be detachably attached to an imaging apparatus. A sensor of the imaging apparatus photoelectrically converts an optical image formed via the lens apparatus. A generation unit generates an image based on an image signal output from the imaging apparatus. The imaging apparatus receives information about a focal length variation from the lens apparatus received by a lens communication control unit configured to control communication with the lens apparatus, and an image magnification variation correction control unit corrects the magnification of the image based on the information.