An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

A blended optical device includes a first objective with a first axis and a first image position adjustment means for adjusting the position of a first image. An electronic control circuitry is configured to control the first adjustment means to adjust a position of the first image. A second objective includes a second axis and a variable focus mechanism, and a blender configured to form a blended image from the first image and a second image. The electronic control circuitry is configured to receive data from the second objective regarding a range to a target of the second objective as a function of the focus setting, and to adjust the position of the first image so that the blended image is corrected for parallax errors.

An image sensor captures a subject image of a partial luminous flux passed through different regions from among a total luminous flux through one optical system. The image sensor is configured from a pixel arrangement in which a plurality of each of at least three types of pixels are arranged, including non-parallax pixels which comprise an aperture mask that produces a viewpoint in a reference direction, first parallax pixels which comprise an aperture mask that produces a viewpoint in a first direction different from the reference direction and second parallax pixels which comprise an aperture mask that produces a viewpoint in a second direction different from the reference direction, wherein each of the aperture mask of the first parallax pixels and the aperture mask of the second parallax pixels has a width of a greater-than-half-aperture aperture area in the direction of change of the viewpoint.

The imaging device includes a pixel including a photoelectric converter, a first switch, a charge holding portion, and an output unit, an output line, a readout circuit unit connected to the output line, and a control unit. The readout circuit unit includes an amplifier circuit, a second switch between the output line and the amplifier circuit, and a comparator comparing the amplified pixel signal with a reference signal. The control unit performs outputting a pixel signal by transferring the charge in the photoelectric converter to the charge holding portion, determining a level of the pixel signal amplified by the amplifier circuit, and setting a gain of the amplifier circuit in accordance with a result of determination, and sets the second switch to off during the first switch is in on and until the output unit is settled after the first switch transitions from on to off.

[Object] To improve work efficiency with respect to work using a transparent object, such as a transparent operation tool, for example. [Solution] An image region where an object exists as a target region is detected on the basis of a second captured image, when a first captured image is a captured image obtained by selectively receiving a light of a first wavelength band, and the second captured image is a captured image obtained by selectively receiving a light of a second wavelength band, the captured images being obtained by capturing the object that is transparent for the light of the first wavelength band and is opaque for the light of the second wavelength band. Subsequently, an outline of the object is superimposed on the first captured image on the basis of information of the target region detected by the target detecting unit.

Method and system form a correlated view of human or other animal anatomy using at least one transparent display screen associated with an electronic mobile device. The view relates an optical view with other electromagnetic spectrum images with a non-optical electromagnetic image of selected portions of human or other animal anatomy. At least three visible position markers associate with selected positions of a predetermined portion of human or other animal anatomy. The disclosure forms a correlated view of the predetermined portion of human or other animal anatomy by relating said at least one non-optical electromagnetic image of the at least three visible position markers with a visual image of said at least three visible position markers. The view correlates the size and dimensions of the optical view and non-optical electromagnetic image of the predetermined portion of human or other animal anatomy.

There is provided an imaging element that photographs multiple viewing point images corresponding to images observed from different viewing points and an image processing unit separates an output signal of the imaging element, acquires the plurality of viewing point images corresponding to the images observed from the different viewing points, and generates a left eye image and a right eye image for three-dimensional image display, on the basis of the plurality of acquired viewing point images. The image processing unit generates parallax information on the basis of the plurality of viewing point images obtained from the imaging element and generates a left eye image and a right eye image for three-dimensional image display by 2D3D conversion processing using the generated parallax information. By this configuration, a plurality of viewing point images are acquired on the basis of one photographed image and images for three-dimensional image display are generated.

An imager integrated circuit intended to cooperate with an optical system configured to direct light rays from a scene to an inlet face of the circuit, the circuit being configured to perform a simultaneous stereoscopic capture of N images corresponding to N distinct views of the scene, each of the N images corresponding to light rays directed by a portion of the optical system which is different from those directing the rays corresponding to the N−1 other images, including: N subsets of pixels made on a same substrate, each of the N subsets of pixels being intended to perform the capture of one of the N associated images, means interposed between each of the N subsets of pixels and the inlet face of the circuit, and configured to pass the rays corresponding to the image associated with said subset of pixels and block the other rays.

A camera device includes a camera head that captures an observation image of a target site which is obtained by a surgical microscope, and a camera control unit that processes a signal of the observation video captured by the camera head. The camera head captures right and left observation images having a parallax from the surgical microscope to obtain a high-resolution observation video including right and left parallax videos for one screen, and the camera control unit cuts out the right parallax video and the left parallax video from the observation video including the right and left parallax videos to generate a high-resolution 3D video which is displayed on a monitor in 3D and with which stereoscopic observation can be performed.

A panel with a virtual curved display surface and a display device are provided. The virtual curved display panel includes a display panel and a grating. The grating is disposed at a light-exiting side of the display panel, and includes a plurality of light-transmitting regions and a plurality of light-shielding regions spaced apart from each other. Respective widths of the plurality of light-shielding regions of the grating are gradually decreased as respective distances from the plurality of light-shielding regions to a symmetry axis of the display panel are increased, and respective widths of the plurality of light-transmitting regions are gradually increased as respective distances from the plurality of light-transmitting regions to the symmetry axis of the display panel are increased.