An optical apparatus includes: a condensing optical part having a focal point; and an optical element that is inserted between the condensing optical part and the focal point and capable of shifting, in a direction perpendicular to an optical axis, the apparent focal point as viewed from a side of the condensing optical part.

A light source apparatus includes an excitation light shining device for emitting excitation light, a rotational wheel device including a rotational wheel including a filter area for transmitting light in a predetermined wavelength range differing from a wavelength range of the excitation light and reflecting the excitation light and a direction-changing transmission area for transmitting the excitation light while changing a direction thereof, and a luminescent light emission device which receives the excitation light reflected on the filter area to thereby emit luminescent light including the light in the predetermined wavelength range towards the filter area, and the rotational wheel device is disposed so that an axis of the excitation light which passes through the direction-changing transmission area and an axis of the luminescent light in the predetermined wavelength range which passes through the filter area are superposed on each other.

A plurality of electromagnetic radiation capture units are positioned under a focusing unit such as a dome, such that incoming electromagnetic radiation incident on the dome is deflected by it, to reach each of the capture units with a different timing and intensity. The profile for the timings and intensities can be determined for a given transmitter using a calibration signal, and the profile is then used to extra data from data signals transmitted by the transmitter.

A liquid lens includes a first plate including a cavity accommodating a conductive liquid and a non-conductive liquid; second and third plates disposed above and below the first plate, respectively, the second and third plates defining the cavity together with the first plate; a common electrode disposed so as to extend to the conductive liquid from a position between the first plate and the third plate; a plurality of individual electrodes disposed between the first plate and the second plate, the plurality of individual electrodes being electrically isolated from each other; and a temperature-sensing unit disposed inside at least one of the first plate, the second plate, or the third plate.

An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.

Provided is an electronic image device, which includes a barrel-shaped container, a conductive liquid, an insulating liquid, an electronic image element, a light-transmissive window, a first electrode, a second electrode, and a voltage source. The conductive liquid and the insulating liquid have the same density and different optical refractive indices, are immiscible with each other, and are filled into the barrel-shaped container. The electronic image element is disposed at a first end of the barrel-shaped container and in contact with the conductive liquid. The light-transmissive window is disposed at a second end of the barrel-shaped container and in contact with the insulating liquid. The first electrode is in contact with the conductive liquid and the second electrode forms a capacitive coupling with the conductive liquid. A variable voltage is applied between the first electrode and the second electrode.

To adjust the size or brightness of augmented reality information provided through an electronic device, the present disclosure provides an electronic device comprising an optical driving assembly including an image source panel for emitting image light, an optical element wherein the emitted image light is incident and totally reflected, a plurality of pin mirrors distributed in a region of the optical element and for deepening a depth of the image light reached, and a variable lens member provided at one point of an optical path before reaching the plurality of pin mirrors to vary a region where the image light reaches among the region where the plurality of pin mirrors are provided.

A luminaire for providing configurable static lighting or dynamically-adjustable lighting. The luminaire uses an array of focusing elements that act on light provided via a corresponding array of sources or via an edge-lit lightguide. Designs are provided for adjusting the number of distinct beams produced by the luminaire, as well as the angular width, angular profile, and pointing angle of the beams. Designs are also provided for systems utilizing the adjustable luminaires in various applications.

A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.

An optical device includes a movable section including an optical section that deflects video light in accordance with the angle of incidence of the video light incident on a light incident surface and outputs the deflected video light and a holder that supports the optical section, an actuator that rotates the movable section around a first axis, an actuator that rotates the movable section around a second axis, a drive circuit that supplies the actuator with a first drive signal and the actuator with a second drive signal, and a sensor disposed in a position different from the positions on the first and second axes detects the position of the optical section, and the drive circuit adjusts the first and second drive signals in accordance with the position of the optical section detected with the sensor.