The disclosure describes an apparatus including a micro-display including an array of individual display pixels positioned along a substantially planar emission surface. An optical fixture is coupled to the substantially planar emission surface and optically coupled to the individual display pixels, wherein the optical fixture forms a virtual or real non-planar object surface of the micro-display.

An imaging device includes a multifocal main lens having different focal distances for a plurality of regions, an image sensor having a plurality of pixels configured of two-dimensionally arranged photoelectric converting elements, a multifocal lens array having a plurality of microlens groups at different focal distances disposed on an incident plane side of the image sensor, and an image obtaining device which obtains from the image sensor, a plurality of images for each of the focal distances obtained by combining the multifocal main lens and the plurality of microlens groups at different focal distances.

Optical components and devices are provided that include a substrate, a microlens array, and a barrier film system conformally covering the microlens array. An OLED may be optically coupled to the microlens array. The barrier film may provide protection to the microlens array or other components, without having a significant negative impact on outcoupling of light from the coupled OLED by the microlens array.

In embodiments of the invention, an apparatus may include a display comprising a plurality of pixels and a computer system coupled with the display and operable to instruct the display to display images. The apparatus may further include a microlens array located adjacent to the display and comprising a plurality of microlenses, wherein the microlens array is operable to produce a light field by altering light emitted by the display to simulate an object that is in focus to an observer while the display and the microlens array are located within a near-eye range of the observer.

The present invention provides a microlens array-based near-eye display, comprising a display screen facing the eyes and displaying images, a microlens array located between the display screen and the eyes, an eyeball-tracing camera and an image processing unit, wherein the microlens array is used for magnifying and projecting the image displayed on the display screen onto the retinas of the eyes, and comprises a plurality of microlens units having the same shape and structure and arranged into an array; the image displayed on the display screen is divided into a plurality of sub-images spaced apart and having the same shape and size, each corresponding to one of the microlens units in the microlens array; the image processing unit is used for segmenting an original image into a plurality of sub-images matching with the microlens array for presentation.

Provided is a system for observing an object that emits fluorescence when irradiated with excitation light. The system includes: a hole unit having holes on a plane perpendicular to an optical axis of the objective lens to allow the excitation light to pass through the holes in a direction parallel to the optical axis; and an imaging unit including: an imaging lens configured to focus the fluorescence; a microlens array having microlenses arranged on a plane perpendicular to an optical axis of the imaging lens; and an image sensor having pixels configured to: receive the fluorescence via the objective lens, at least one of the holes, and the microlens array, the fluorescence being emitted when the object is irradiated with the excitation light having passed through at least one of the holes and the objective lens; and output an image signal in accordance with an intensity of the received fluorescence.

Embodiments of the present application disclose various methods and an apparatus for controlling light field capture. One method for controlling light field capture comprises: determining, at least according to at least one sub-lens that affects imaging of a first region in a sub-lens array of a light field camera, at least one first sub-lens to be adjusted, the first region being a part of a scene to be shot; determining an object refocusing accuracy of a light field image section captured by the first sub-lens in a light field image of the scene to be shot; adjusting, according to the object refocusing accuracy, a light field capture parameter of the first sub-lens; and performing, based on the light field camera after being adjusted, light field capture on the scene to be shot. The solution can achieve differentiated distribution of refocusing accuracies of various light field image sections that correspond to different regions of the scene to be shot, thereby better satisfying a user's actual application demands.

A 3D display apparatus and method that address the vergence-accommodation conflict. A display screen component includes a display screen pixel array adapted to display a display screen image, a microlens imaging component including an array of microlenses corresponding to the display screen pixel array that can form a virtual or a real image of the display screen image, and a controllable movement component coupled to the imaging component or the display screen, wherein the imaging component and the display screen are controllably movable relative to each other, further wherein upon a controlled movement of the imaging component relative to the display screen, a location of the virtual or the real image along an optical axis is controllably changed.

A light field camera includes a lens module generating a middle image, a light field sensor having a lens array and an image sensor device, and a position adjuster adjusting a position of the light field sensor. The light field camera is between an object side and an image side. The lens array between the lens module and the image side generates a light field image according to the middle image. The image sensor device is arranged at the image side and senses the light field image. When the light field sensor is at a first or second position, the light field image includes a first or second light field sub-image. A relation of a focal length f.sub.MLA of the lens array and an exit pupil distance P.sub.EXP of the lens module satisfies

[00001]$0.7\le \frac{f_{\mathrm{MLA}}}{P_{\mathrm{EXP}}}\le 1.3.$

A non-invasive optical internal substance detector includes: a diode array including a plurality of light emitting diodes (LEDs) for emitting light toward a target where an internal substance is detected, and a plurality of photodiodes (PDs) for receiving light which is reflected from the target after being emitted from the plurality of light emitting diodes; and a controller for controlling the plurality of light emitting diodes to be turned on or off and for processing a signal obtained from the photodiodes. The plurality of light emitting diodes and the plurality of photodiodes each have a size of several micrometers to several tens of micrometers and are arranged at intervals of several micrometers to several tens of micrometers from each other.