A focus adjustment device obtains a correction value for correcting a result of autofocus, from aberration information regarding at least one of an astigmatism, a chromatic aberration, and a spherical aberration of an imaging optical system, and focus detection information regarding the autofocus. The focus adjustment device then controls a position of a focusing lens that the imaging optical system has, based on a result of the autofocus corrected using the correction value. By correcting the result of the autofocus while considering at least a focus condition of a photographic image, a focus detection error caused by an aberration of the optical system can be accurately corrected.

A lens module includes a carrier having an internal space, a lens unit including a plurality of lens groups and disposed in the carrier so that one or more of the lens groups is movable in a length direction of the carrier, a lens guide unit connected to the one or more movable lens groups to guide movement of the one or more movable lens groups, and a lens driving unit connected to the lens guide unit and including a plurality of driving wires formed of a shape memory alloy. The lens guide unit is moved in a height direction of the carrier by expansion and contraction of the plurality of driving wires to move the one or more lens groups in the length direction of the carrier.

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.

Disclosed is a variable-zoom imaging apparatus that includes: i) imaging optics configured to form an image in an imaging area of an object positioned in an object area; ii) an adjustable aperture stop to adjustably set a numerical aperture NA for the image formed by the imaging optics; iii) an electronic detector comprising an array of detector elements positioned in the imaging area to detect the image; and iv) image processing circuitry coupled to the electronic detector to produce a digital representation of the image based on signals from at least some of the detector elements. The image processing circuitry produces the digital representation with a different magnification of the object m for each of a plurality of different numerical apertures for the image set by the adjustable aperture stop.

An apparatus includes, in order from an object side to an image side, a focusing lens group, a zoom lens group, and a relay lens group. The relay lens group includes an extender group and a correction lens group. The apparatus includes a temperature detector, a storage storing information relating to a moving amount of the correction lens group, and a controller configured to control a position of the correction lens group. The storage stores first information relating to the moving amount for correction of focus movement due to change in a temperature and insertion of the extender group. The controller obtains the moving amount based on the temperature and the first information. A specific conditional expression is satisfied.

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.

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.

Provided is a light emission control apparatus, a light emission control method, a light emission apparatus, and an imaging apparatus that make it possible to emit AF assist light with a more appropriate amount of light. A light emission unit is capable of emitting AF (Auto Focus) assist light when capturing a static image and illumination light when capturing a moving image. A light-amount setting unit sets the amount of AF assist light to a light emission control unit, the light amount being obtained in accordance with a distance to an object to be focused on or specification by a user, and the light emission control unit controls light emission of the AF assist light in accordance with the setting.

A lens driving device, a camera module and a camera-mounted device that can improve the stability the moving operation of AF movable part are provided.

A lens driving device includes a base; a lens holder disposed apart from the base in a light axis direction, and configured to hold a lens part; and an autofocus driving part including an auto-focusing coil and an auto-focusing magnet, and configured to move the lens holder in the light axis direction with respect to the base.

The auto-focusing coil is disposed at the lens holder.

The auto-focusing magnet is disposed at the base.

The base includes a magnet holding part provided to protrude to a light reception side in the light axis direction, the magnet holding part being configured to hold the auto-focusing magnet while positioning the auto-focusing magnet.

A damper is disposed between the magnet holding part and the lens holder.

A control apparatus includes a control unit for controlling a lens system of the photographing apparatus. When a distance from an object-side focus of the lens system to a photographed object changes from a to n×a due to moving of the photographing apparatus, the control unit changes a focal length of the lens system from f to n×f, and changes a distance from an image-side focus of the lens system to an image plane from b to n×b. The lens system has a zoom lens system and a focus lens system. By controlling the zoom lens system, the control unit changes the focal length of the lens system from f to n×f, and by controlling the focus lens system, the control unit changes the distance from the image-side focus of the lens system from b to n×b.