Abstract: An image display apparatus including a first waveguide, a second waveguide, a focus tunable lens positioned between the first waveguide and the second waveguide, and a display engine configured to control a focal length of the focus tunable lens and control the display engine to output first light forming the first virtual image and second light forming the second virtual image, wherein at least a portion of the first light is diffracted from the first waveguide and at least a portion of the second light diffracted from the second waveguide is incident on the first waveguide through the focus tunable lens.

Abstract: A lens unit includes a positive lens element provided with a convex surface on an incident surface and/or an exit surface; and a lens frame supporting the lens element and being provided with a projection that projects in an inner radial direction from inside the lens frame. The lens frame supports the lens element with the projection fixedly fitted into an outer peripheral portion of the lens element. The projection is provided, on an inner peripheral portion thereof, with a first surface positioned on an incident side in an optical axis direction, a second surface positioned on an exit side in the optical axis direction, and a third surface positioned between the first surface and the second surface. The first, second and third surfaces are tapered surfaces that are respectively inclined relative to the optical axis direction. A method of manufacturing the lens unit is also provided.

Abstract: A first optical unit having positive power a second optical unit including a first diffraction element and having positive power a third optical unit having positive power and a fourth optical unit including a second diffraction element and having a positive power. In the optical path, a first intermediate image of the image light is formed between the first optical unit and the third optical unit, a pupil is formed between the second optical unit and the fourth optical unit, a second intermediate image of the image light is formed between the third optical unit and the fourth optical unit, an exit pupil is formed on a side of the fourth optical unit opposite to the third optical unit, and a prism member configured to correct a ray shape of the image light is provided between the second optical unit and the fourth optical unit.

Abstract: A head mounted display, according to various embodiments of the present disclosure, comprises: a housing comprising an opening part; an lens assembly arranged in the opening part; and a light shielding part arranged along the circumference of the opening part, wherein the light shielding part may be in a first configuration of being drawn out from the housing via the opening part so as to enable being worn on the face of a user, and a second configuration of having at least one portion thereof inserted into the housing via the opening part.

Abstract: A head-mounted display including a body, a base and two lenses is provided. The base is disposed at the body, wherein the base has two assembly portions and each assembly portion has a base center. The two lenses are respectively rotatably disposed at the two assembly portions, wherein each lens has a lens center and the lens center of each lens is shifted with respect to the base center of the corresponding assembly portion. In a first state, a first distance is maintained between the two lens centers, and the two lens centers are located between the two base centers. In a second state, a second distance greater than the first distance is maintained between the two lens centers, and the two base centers are located between the two lens centers.

Abstract: There is provided a head mounted display including: an optical system comprising: right-eye and left-eye optical systems that guide a real image light and right-eye and left-eye virtual image lights; and an optical element comprising: first polarization plates disposed at emission sides of the right-eye and left-eye optical systems; wherein the right-eye virtual image light from the right-eye optical system and the left-eye virtual image light from the left-eye optical system are blocked by the first polarization plate at the emission side of the left-eye optical system and by that of the right-eye optical system respectively; and at least one of: first wave plates disposed at the emission sides of the right-eye and left-eye optical systems so that the real image light from the right-eye and left-eye optical systems passes therethrough; and second wave plates disposed at incident sides of the right-eye and left-eye optical systems.

Abstract: A display device, including a display surface, a laser beam emitter, and a processor. The display device may further include a slow-scan MEMS driver configured to drive a slow-scan mirror and a fast-scan MEMS driver configured to drive a fast-scan mirror. The slow-scan mirror and the fast-scan mirror may reflect the laser beam onto an active region of the display surface. The slow-scan period may include a scanning interval in which the slow-scan mirror is configured to move to a final scanning position at one or more scanning ramp rates and a flyback interval in which the slow-scan mirror is configured to return to the initial scanning position. The processor may generate a modified slow-scan drive signal by modifying one or more of the initial scanning position, the final scanning position, and the scanning ramp rate in a blank region of the display surface.

Abstract: An image display module according to the present disclosure includes a first panel configured to emit first imaging light of a red wavelength region having no polarization characteristics, a second panel configured to emit second imaging light of a blue wavelength region having no polarization characteristics, a third panel configured to emit third imaging light of a green wavelength region having no polarization characteristics, and a color combined prism configured to emit combined light combined from the first imaging light, the second imaging light, and the third imaging light. The color combined prism includes a first dichroic mirror having no polarization separation characteristics, and a second dichroic mirror having no polarization separation characteristics, and a peak wavelength in the red wavelength region is equal to and greater than 630 nm and equal to or less than 680 nm.

Abstract: An electrochromic light adjusting member sequentially includes a transparent substrate, a light transmitting electrically conductive layer, and an electrochromic light adjusting layer. The light transmitting electrically conductive layer sequentially includes a first indium-based electrically conductive oxide layer, a metal layer, and a second indium-based electrically conductive oxide layer.

Abstract: The present disclosure relates to optical devices and systems, specifically those related to light detection and ranging (LIDAR) systems. An example device includes a shaft defining a rotational axis. The shaft includes a first material having a first coefficient of thermal expansion. The device also includes a rotatable mirror disposed about the shaft. The rotatable mirror includes a multi-sided structure having an exterior surface and an interior surface. The multi-sided structure includes a second material having a second coefficient of thermal expansion. The second coefficient of thermal expansion is different from the first coefficient of thermal expansion. The multi-sided structure also includes a plurality of reflective surfaces disposed on the exterior surface of the multi-sided structure. The multi-sided structure yet further includes one or more support members coupled to the interior surface and the shaft.

Abstract: A lens module of enhanced stability and strength when mounted to an image-capturing device includes a voice coil motor. The voice coil motor includes a casing and a first connection plate connected to the casing. The first connection plate defines at least one first mounting hole. An electronic device using the lens module is also provided.

Abstract: An imaging optical system includes, sequentially from an object side toward an image side, a first lens group; an aperture stop; and a second lens group. The first lens group includes a negative lens; and a positive lens formed of a plastic lens. The second lens group includes a plastic lens and satisfies Conditional Expressions (1) and (2) as follows: c31a>c32a, and??(1) c31b<c32b,??(2) where c31a is an on-axis curvature of an object-side surface of the plastic lens of the second lens group, c32a is an on-axis curvature of an image-side surface of the plastic lens of the second lens group, c31b is an off-axis curvature of the object-side surface of the plastic lens of the second lens group, and c32b is an off-axis curvature of the image-side surface of the plastic lens of the second lens group.

Abstract: Provided is an electronic device using an augmented reality, which is capable of selectively driving a monocular mode and a binocular mode by using one display module. According to an aspect of the present invention, an electronic device includes: a glasses body including a left eye lens and a right eye lens and a nose support part positioned between the left and right lenses; one display module positioned at the nose support part; an optical system including a left eye optical system transferring a screen displayed on a display provided in the display module and to the left eye lens and a right eye optical system transferring the screen to the right eye lens; and a control unit controlling the screen displayed on the display so as to display the screen on at least one lens of the two lenses.

Abstract: The present invention provides an ultra-thin optical component, including a mirror projection device and a reflector, where the mirror projection device is configured to refract image light symmetrically, then form a real image, and project the real image to the reflector, where the real image is located between a human eye and the reflector; and the reflector is configured to reflect the image light to the human eye. The present invention further provides a display device using the ultra-thin optical component and a virtual imaging method. By means of the ultra-thin optical component, the display device, and the imaging method in the present invention, an optical component is made thinner and lighter, and an image source display device is easier to configure and package, to achieve the appearance of ordinary glasses.

Abstract: An ophthalmic lens including an active matrix including pixels, addressing rows serving to control the pixels, data columns serving to supply electrical power to pixels, and at least one transistor for each pixel. In the matrix of the ophthalmic lens: each row or column undulates continuously but non-periodically on either side of a theoretical straight addressing or data line connecting the two end terminals of the row or column.

Abstract: An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are both aspheric. The sixth lens element with refractive power has an object-side surface and an image-side surface being both aspheric. The optical photographing lens assembly has a total of six lens elements with refractive power.

Abstract: The utility model discloses glasses with replaceable lenses, and the technical scheme of the glasses comprises a glasses frame, glasses legs connected to two sides of the glasses frame, and a lens assembly detachably fit with the glasses frame, the lens assembly comprising a frame and a lens; the frame is provided with an insertion end; the glasses frame is provided with an insertion groove in inserting fit with the insertion end; a clamping groove adapted to the clamping piece is arranged on the side wall of the insertion groove is provided with a clamping piece; the side wall, opposite to the clamping piece, of the insertion end; the clamping piece is in elastic clamping fit with the clamping groove, and the utility model is simple in structure and easy to detach.

Abstract: The present invention relates generally to stereoscopic displays, and more particularly, but not exclusively, to stereoscopic displays with addressable focus cues.

Abstract: A display device of the present disclosure includes, along an optical path of image light emitted from an image light generating device, a first optical unit having positive power, a second optical unit that includes a first diffraction element and has positive power, a third optical unit having positive power, and a fourth optical unit that includes a second diffraction element and has positive power. A first diffraction angle of the image light at the first diffraction element is different from a second diffraction angle of the image light at the second diffraction element. A correction optical system that corrects an incident angle of the image light with respect to the second diffraction element is provided between the first optical unit and the fourth optical unit on the optical path.

Abstract: The present application discloses a polarization beam splitter (PBS). The PBS includes a silicon substrate and a planar structure formed thereon characterized by an isosceles trapezoid shape with a first parallel side and a second parallel side connected by two tapered sides. The first parallel side has longer width than the second parallel side, both of which is separated by a length no greater than 100 ?m along a line of symmetry bisecting the pair of parallel sides. The PBS further includes a pair of input ports coupled to the first parallel side and a pair of output ports coupled to the second parallel side. The planar structure is configured to receive an input light wave of any wavelength in C-band via one input port and split to a TE-mode light wave and a TM-mode light wave respectively outputting to the pair of output ports.