A lens apparatus includes an aperture stop, a driving device configured to drive the aperture stop, a storage storing a driving instruction value for driving the aperture stop, and a controller configured to perform control of the driving device based on the driving instruction value. The storage stores the driving instruction value, among a plurality of ones of the driving instruction value, by which an absolute value of a difference, between a target aperture value and an actual aperture value obtained by the control, that is largest with respect to a plurality of ones of the drive amount is minimized.

According to one embodiment, an electronic device includes a light shutter panel including an incident light control area, an optical member including a lens and facing the incident light control area, and an imaging device configured to convert light which passed through the incident light control area of the light shutter panel and the optical member to image data. The incident light control area includes a first annular light-shielding area, a circular incident light control area surrounded by the first annular light-shielding area, and a plurality of annular incident light control areas located between the first annular light-shielding area and the circular incident light control area and having a multiple shape.

A variable diaphragm is provided. The variable diaphragm includes: first and second substrates opposite to each other; a light detector on a side of the first substrate distal to the second substrate, and configured to detect an intensity of incident light and generate a first signal; an electrowetting microfluid medium layer between the first and second substrates, and including transparent and opaque fluid mediums immiscible with each other, wherein an aperture of the variable diaphragm is formed by the transparent fluid medium, and one of the transparent and opaque fluid mediums is conductive; and a driving electrode between the first and second substrates, and configured to receive a driving voltage corresponding to the first signal and for driving the electrowetting microfluid medium layer, so as to change an area of an orthographic projection of the opaque fluid medium fluid medium on the second substrate, thereby changing a diameter of the aperture.

A variable diaphragm is provided. The variable diaphragm includes: first and second substrates opposite to each other; a light detector on a side of the first substrate distal to the second substrate, and configured to detect an intensity of incident light and generate a first signal; an electrowetting microfluid medium layer between the first and second substrates, and including transparent and opaque fluid mediums immiscible with each other, wherein an aperture of the variable diaphragm is formed by the transparent fluid medium, and one of the transparent and opaque fluid mediums is conductive; and a driving electrode between the first and second substrates, and configured to receive a driving voltage corresponding to the first signal and for driving the electrowetting microfluid medium layer, so as to change an area of an orthographic projection of the opaque fluid medium fluid medium on the second substrate, thereby changing a diameter of the aperture.

A camera module, which may be included in an electronic device includes a camera lens, a variable aperture, and a photosensitive element. A quantity of apertures of the camera lens is F1 when a clear aperture of the variable aperture is adjusted to a first clear aperture, and the photosensitive element is configured to: enable the camera lens to perform imaging in a full area of a photosensitive area, and adjust angular resolution of the full area to δ. A quantity of apertures of the camera lens is F2 when a clear aperture of the variable aperture is adjusted to a second clear aperture, where F1≥F2, and the photosensitive element is configured to: enable the camera lens to perform imaging in a partial area of the photosensitive area, and adjust angular resolution of the partial area to nδ, where 1≤n≤3.

A light shielding plate includes a front surface located on a light incident side, a rear surface opposite to the front surface, and a hole passing through the light shielding plate between the front surface and the rear surface. The hole has a first hole portion and a second hole portion connected to the first hole portion at an intermediate opening thereof. The first hole portion extends from a rear surface opening on the rear surface to the intermediate opening and is shaped so as to taper from the rear surface toward the front surface. The second hole portion extends from a front surface opening on the front surface to the intermediate opening and is shaped so as to taper from the front surface toward the rear surface. The front surface opening is larger than the rear surface opening. The intermediate opening has a circularity of 3 μm or less.

An imaging system for a portable electronic device includes a variable aperture between a lens group and an image sensor. The variable aperture is defined by an electrochromic stack that defines a switching region and a central non-switching region. The non-switching region can be etched through the same material or set of materials defining the switching region and is backfilled with a dielectric transparent material having an index of refraction substantially equal to an average index of refraction of the layer(s) of the switching region of the electrochromic stack. This construction substantially reduces visible light absorption of the variable aperture.

An imaging system for a portable electronic device includes a variable aperture between a lens group and an image sensor. The variable aperture is defined by an electrochromic stack that defines a switching region and a central non-switching region. The non-switching region can be etched through the same material or set of materials defining the switching region and is backfilled with a dielectric transparent material having an index of refraction substantially equal to an average index of refraction of the layer(s) of the switching region of the electrochromic stack. This construction substantially reduces visible light absorption of the variable aperture.

An imaging system for a portable electronic device includes a variable aperture between a lens group and an image sensor. The variable aperture is defined by an electrochromic stack that defines at least two switching regions and a central non-switching region. The switching regions can be defined by concentric ring electrodes disposed below an electrochromic stack including a counter electrode, an ion conductor layer, and an electrochromic material. Above the electrochromic stack is disposed a shared electrode. The shared electrode and the concentric ring electrodes can be formed from indium tin oxide. By applying at least a threshold voltage to one or more of the concentric ring electrodes, an electric field can be generated by each driven electrode and a respective portion of the shared electrode, inducing a transition from a bleached state to a colored state in a respective portion of the electrochromic stack.

An optical unit has a lens frame that has a slit in a cylinder, and a blade driving device, comprising an insertion portion for insertion into the slit, wherein an opening, provided in the insertion portion, is disposed between lenses in a lens frame, wherein: the blade driving device comprises a frame that has a recessed lens frame storing portion with the insertion portion protruding; a cylinder of the lens frame comprises a pair of supporting faces that are perpendicular to the optical axis of the lens; and the lens frame storing portion of the frame has contact surfaces that contact each of a pair of supporting faces.