A position detection device includes a first position detector, a second position detector, and a signal generator. The first position detector includes a first magnetic field generation unit, a second magnetic field generation unit, and a first magnetic sensor. The second position detector includes a third magnetic field generation unit, a fourth magnetic field generation unit, and a second magnetic sensor. The positions of the second and fourth magnetic field generation units vary in response to variations in a detection-target position. The signal generator generates a position detection signal, which is the sum of a first detection signal generated by the first magnetic sensor and a second detection signal generated by the second magnetic sensor. Each of the first and second position detectors includes a bias magnetic field generation unit.

A lens barrel is provided with: a first tube; a second tube arranged on one side among the radial outside or inside of the first tube and having a linear grove along an optical axis; a fixing member provided to the first tube; a movable member that is movably held by the fixing member and has a first protruding section arranged in the linear groove; and an elastic section arranged between the fixing member and the movable member, wherein the first protruding section abuts against one side surface of the linear groove by means of the elastic section.

An imaging lens assembly includes a plurality of optical elements and a lens barrel. At least one optical element of the optical elements is a lens element. The lens element includes an optical effective portion, a peripheral portion, a light-blocking coating layer and a nanostructure layer. The light-blocking coating layer is disposed on at least one surface of the object-side peripheral surface and the image-side peripheral surface and includes a tapered portion. The tapered portion is tapered adjacent to a boundary between the optical effective portion and the peripheral portion. The nanostructure layer is disposed on the optical effective portion and the tapered portion of the light-blocking coating layer, and the nanostructure layer has a plurality of irregular ridge-shaped protrusions. The tapered portion of the light-blocking coating layer forms a light-passing opening adjacent to the boundary along a direction surrounding the optical axis.

An imaging device and a method of imaging are disclosed. The device includes an array of liquid crystal cells, each providing a phase shift to electromagnetic radiation passing through the cell; control electronics for controlling the phase shifts provided by each of the liquid crystal cells; a detector; and an image processor for generating an image from electromagnetic radiation detected by the detector. The array of cells form a plurality of patches; and the control electronics is configured to control the phase shifts of the cells of each patch to form each patch into a respective lens that focuses electromagnetic radiation towards the detector such that the patches form an array of lenses. A method of imaging is also disclosed.

A lens drive apparatus has: a fixed part; a moving part disposed apart from the fixed part and comprising a lens holder, an elastic member, and a magnet holder connected with the lens holder via the elastic member such that the lens holder is capable of displacing in a direction of an optical axis; a driving part configured to displace the moving part with respect to the fixed part in a direction orthogonal to the optical axis by interaction of a plurality of magnets and a plurality of coils, the plurality of magnets held by the magnet holder, the plurality of coils disposed to the fixed part to face the plurality of magnets; and a supporting member configured to support the moving part with respect to the fixed part such that the moving part is capable of displacing in the direction orthogonal to the optical axis.

A lens drive apparatus has: a fixed part; a moving part disposed apart from the fixed part and comprising a lens holder, an elastic member, and a magnet holder connected with the lens holder via the elastic member such that the lens holder is capable of displacing in a direction of an optical axis; a driving part configured to displace the moving part with respect to the fixed part in a direction orthogonal to the optical axis by interaction of a plurality of magnets and a plurality of coils, the plurality of magnets held by the magnet holder, the plurality of coils disposed to the fixed part to face the plurality of magnets; and a supporting member configured to support the moving part with respect to the fixed part such that the moving part is capable of displacing in the direction orthogonal to the optical axis.

Disclosed herein is a system for facilitating monitoring an environment. Accordingly, the system comprises a camera, an artificial intelligence (AI) processing unit, a radio unit, and at least one alternative energy capturing device. Further, a camera device is configured for capturing video of an environment. Further, an AI processing unit is responsible to analyze captured videos, detect whether certain relevant events occurred, make a decision, then generate relevant alert. Further, the radio unit is capable to send the generated alert to different devices. Further, the alternative energy capture device can use solar or other energy source to keep the entire system running.

A camera module according to an embodiment includes a circuit board; a protrusion disposed on the circuit board; an adhesive member disposed on the circuit board and including an opening vertically overlapping the protrusion; and a sensor base disposed on the adhesive member and including a concave portion vertically overlapping the protrusion, wherein the protrusion is inserted into the concave portion of the sensor base, and wherein the adhesive member has a closed loop shape surrounding an edge region of an upper surface of the circuit board.

An accessory apparatus including an optical member, and configured to be detachably attached to an image pickup apparatus, includes a communication unit. The communication unit is configured to communicate with the image pickup apparatus with a first communication for the image pickup apparatus to perform notification to the accessory apparatus that the image pickup apparatus communicates with the accessory apparatus, and a second communication and a third communication to be used for performing communication between the image pickup apparatus and the accessory apparatus that has received the notification. A time interval between two request signals for requesting standby of communication between the image pickup apparatus and the accessory apparatus with the third communication is longer than that with the second communication.

An information processing apparatus includes a processor that performs arithmetic processing of a neural network, and a controller that is capable of setting, in the processor, a first inference parameter to be applied to processing for shooting control for shooting an image and a second inference parameter to be applied to processing for processing control of the image. The controller switches the first inference parameter having been set in the processor to the second inference parameter in response to settlement of a focus target.