Abstract: Eyewear including a frame, a projector supported by the frame, and a lens supported by the frame. The lens has a first surface facing an eye of the user and a second surface facing away from the eye of the user when the frame is worn. The lens also includes a waveguide defined by the first and second surfaces to receive light from the projector. An input light coupler and an output light coupler are on the first surface of the lens and at least one reflector is positioned on a second surface of the lens to redirect light received from the input coupler and/or the output coupler to redirect light having an angle of incidence with respect to the second surface of the lens that would result in that portion of the light exiting the waveguide through the second surface in the absence of the at least one reflector.

Abstract: A system including a steerable mirror, a waveguide, first optics, intermediate optics, and final optics. The system includes a first light path for a foveal image element, the first light path including the first optics, the steerable mirror to steer a position of the foveal image element to a particular orientation, intermediate optics, and the final optics to direct the foveal image element to an in-coupling region of the waveguide. The system further includes a second light path for a field image element, the second light path including final optics.

Abstract: An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power. The lower near viewing zone has a central region that is relatively positive in power compared to the first refractive power to account for accommodative lag. The powers of the peripheral regions of the lower near viewing zone are one of: i) equal to the power of the central region of the lower near viewing zone, ii) relatively positive in comparison to the power of the central region of the lower near viewing zone.

Abstract: Various embodiments disclosed herein include an optical module. The optical module may include a deformable lens and an actuator configured to be deflectable to cause a change in the shape of the deformable lens to alter light passing through the optical module. In various examples, the optical module may include a stop structure configured to mechanically stop the actuator from deflecting beyond a threshold deflection in at least one direction. In some cases, the stop structure may be used for calibration purposes. Additionally, or alternatively, the stop structure may be configured to define an aperture stop that limits an amount of light that passes through the optical module. Furthermore, in some embodiments, the stop structure may be configured to hide the actuator when the optical module is viewed in plan.

Abstract: A head mounted display with wide field of view (WFOV) is disclosed. A conventional small display is used in conjunction with a Beam Steering Mechanism (BSM) to dynamically steer the FOV of the displayed image at a very fast rate to provide an effectively WFOV for immersive visual experience. An electrically actuated switchable Steering Mechanism (SM) is provided within the display projection module that steers the projected image towards different portions of the lens at a fast rate. The steering can be either in one, two or three dimensions. The steering allows for the displayed image to be wider field of view (FOV) to the observer than conventionally projected images that are small fixed FOV. The SM is steered at a high rate so as to be indistinguishable to the human observer. The steering can be controlled in a gaze tracked dynamic, on-demand fashion so as to save power consumed by the display system.

Abstract: An optical device includes: a lens including a first lens portion having a first curved surface with a first curvature and a second lens portion having a second curved surface corresponding to the first curved surface; a display device disposed on a first side surface of the lens; a convex lens disposed between the first side surface of the lens and the display device; and a reflector disposed on the first curved surface of the first lens portion of the lens, the reflector configured to reflect light of the display device refracted by the convex lens toward a user's eye.

Abstract: A lens moving apparatus includes a bobbin including a first coil disposed therearound, a first magnet disposed to face the first coil, a housing for supporting the first magnet, upper and lower elastic members each coupled to both the bobbin and the housing, a base disposed to be spaced apart from the housing by a predetermined distance, a second coil disposed to face the first magnet, a printed circuit board on which the second coil is mounted, a plurality of support members, which support the housing such that the housing is movable in second and/or third directions and which connect at least one of the upper and lower elastic members to the printed circuit board, and a conductive member for conductively connecting the upper and lower elastic members.

Abstract: A position detection device of a VR device is provided. A gear rack and a gear are provided between the left lens barrel and the right lens barrel, and the gear rack is made to be occluded with the gear. A magnet is fixed at a preset position, and a magnetic induction intensity of the magnet set based on a relative position relationship between the left lens barrel and the right lens barrel in the VR device is detected by means of a Hall sensor. A distance between the Hall sensor and the magnet is calculated according to the magnetic induction intensity.

Abstract: The present disclosure discloses an optical lens assembly. The optical lens assembly may include, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens may have negative refractive power, a convex object-side surface and a concave image-side surface. The fourth lens may have positive refractive power, a convex object-side surface and a convex image-side surface. The fifth lens may have positive refractive power, a convex object-side surface and a convex image-side surface. The sixth lens may have negative refractive power, a concave object-side surface and a concave image-side surface. The seventh lens may have positive refractive power and a convex object-side surface.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens, wherein each of the first through the eighth lenses has refractive power. The first lens has positive refractive power. The third lens has positive refractive power, and each of an object-side surface and an image-side surface thereof is a convex surface. An object-side surface of the sixth lens is a convex surface. The eighth lens has negative refractive power, and an object-side surface thereof is a concave surface. A total effective focal length f of the optical imaging lens assembly and an entrance pupil diameter EPD of the optical imaging lens assembly may satisfy f/EPD?2.0.

Abstract: A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 1.60?f1/f?3.00, and 2.50?d13/d14?12.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d13 denotes an on-axis thickness of the seventh lens, and d14 denotes an on-axis distance from an image side surface of the seventh lens to an object side surface of the eighth lens. The camera optical leans according to the present disclosure has good optical performance while satisfying design requirements for ultra-thin and wide-angle lenses having large apertures.

Abstract: A stereoscopic vision endoscope objective optical system includes, in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The first lens group and the second lens group are disposed so that an optical axis of the second lens group coincides with an optical axis of the first lens group. The optical axis of the first lens group is located between an optical axis of the first rear group and an optical axis of the second rear group. Each of the first rear group and the second rear group includes a first sub group, an aperture stop, and a second sub group, and the first sub group includes a negative lens.

Abstract: Techniques are described for forming a gradient index (GRIN) lens for propagating an electromagnetic wave comprising receiving, by a manufacturing device having one or more processors, a model comprising data specifying a plurality of layers, wherein at least one layer of the plurality of layers comprises an arrangement of one or more volume elements comprising a first dielectric material and a second dielectric material, wherein the at least one layer of the plurality of layers has a dielectric profile that is made up of a plurality of different effective dielectric constants of the volume elements in the layer, and generating, with the manufacturing device by an additive manufacturing process, the GRIN lens based on the model.

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: The invention relates to a waveguide display element comprising a waveguide body and an in-coupling grating (21) arranged to the waveguide body. The in-coupling grating (21) is configured to couple incoming light into the waveguide body into two separate directions (26A, 26B) using opposite diffraction orders (IC:+1, IC:?1) for splitting the field of view of the incoming light. Further the in-coupling grating (21) is configured, typically by setting its period suitably short, such that said coupling takes place only at wavelengths below a threshold wavelength residing in the visible wavelength range. The invention also relates to a waveguide stack (51 A, 51 B, 51 C).

Abstract: The present disclosure provides a prime lens module and an in-vehicle camera system. From an object side to an imaging side thereof, the prime lens module sequentially includes: a first lens with a negative focal power, a second lens with a negative focal power, a third lens with a positive focal power, a fourth lens with a positive focal power, a fifth lens with a positive focal power, a sixth lens with a negative focal power, and a seventh lens with a positive focal power. The first lens is a meniscus spherical lens. The second lens is a biconcave spherical lens. The third lens is a biconvex spherical lens and bonded to the second lens. The fourth lens is a biconvex spherical lens or a biconvex aspheric lens. The fifth lens is a biconvex spherical lens. The sixth lens is a biconcave spherical lens and bonded to the fifth lens.

Abstract: An imaging lens with better performance including in focusing is disclosed. A first lens group always fixed and having positive refractive power, and a first focus lens group that moves in an optical axis direction at the time of focusing are included in order from the object side to the image side. A last lens group always fixed and having negative refractive power, and a second focus lens group that moves in an optical axis direction at the time of focusing are included in order from the image side to the object side. At least one of the first focus lens group or the second focus lens group has negative refractive power. The conditional expression 0.4<f/ff<1.0, where f: the focal length of the whole system, and ff: the combined focal length from the first lens group to the first focus lens group, is preferably satisfied.

Abstract: The present disclosure discloses a camera optical lens, which includes, from an object-side to an-image side: a first lens having a positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eight lens, which satisfies following conditions: 0.95?f/TTL; ?3.50?f2/f??1.80; and 2.50?(R5+R6)/(R5?R6)?20.00; where f denotes a focal length of the camera optical lens; f2 denotes a focal length of the second lens; TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optic axis; R5 denotes a curvature radius of an object-side surface of the third lens; and R6 denotes a curvature radius of an image-side surface of the third lens. The camera optical lens can achieve good optical performance while meeting the design requirement for large aperture, long focal length and ultra-thinness.

Abstract: The present disclosure provides a camera optical lens including, from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens; and the camera optical lens satisfies conditions of: 0.95?f/TTL; 3.20?f2/f?5.00; and 0.20?(R11+R12)/(R11?R12)?0.90. The camera optical lens can achieve good optical performance while meeting the design requirements for long focal length and ultra-thinness.

Abstract: The present disclosure discloses a camera optical lens including eight lenses which are, from an object-side to an-image side: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a positive refractive power, a sixth lens having a refractive power, a seventh lens having a negative refractive power and an eight lens having a negative refractive power, which satisfies following conditions: 0.95?f/TTL; ?5.00?f2/f??2.00; and 0.40?(R9+R10)/(R9?R10)?1.00; where TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optic axis; f denotes a focal length of the camera optical lens. The camera optical lens can achieve good optical performance while meeting the design requirement for long focal length and ultra-thinness.