Abstract: An optical element including an optically transparent lens which defines a curved surface having a steepness given by an R/# of from about 0.5 to about 1.0. A film is positioned on the curved surface. The film includes an index layer. A composite layer is positioned on the curved surface having a refractive index greater than the index layer. The composite layer includes HfO2 and Al2O3. The composite layer has a mole fraction X of HfO2, wherein X is from about 0.05 to about 0.95 and a mole fraction of Al2O3 in the composite layer is 1?X.

Abstract: A microsphere lens assembly (10) comprises a microsphere lens (1) and a base lens (3) connected together by a column of optically clear material (2) which holds the microsphere lens (1) in a fixed position relative to the base lens (3). If the microsphere lens (1) is fixed in the correct position relative to the base lens (3), the assembly (10) can be used, in combination with a suitable microscope, for carrying out super resolution microscopy and/or machining.

Abstract: A lens holder with an air escape hole which cannot be fouled by adhesive includes a holder body and a lens barrel disposed on the holder body. The holder body includes a first surface away from the lens barrel and a second surface opposite to the first surface, the first surface defines a groove. The groove includes a first bottom surface, the first bottom surface defines a recess. The recess includes a second bottom surface, the second bottom surface defines an air escape hole. A cross-sectional size of the air escape hole is less than a cross-sectional size of the recess.

Abstract: A lens module includes a first lens, an object-side surface thereof being convex; a second lens, both surfaces thereof being convex; a third lens, both surfaces thereof being concave; a fourth lens having positive refractive power, both surfaces thereof being convex; a fifth lens, an object-side surface thereof being concave; and a sixth lens, an object-side surface thereof being convex. The first to sixth lenses are sequentially disposed in numerical order from the first lens to the sixth lens from an object side of the lens module toward an image side of the lens module.

Abstract: There is provided a camera module including a plurality of ball bearings to support the driving of a lens barrel at the time of compensating for unintended camera movement due to disturbance such as hand shake. The lens barrel may be driven in first and second directions, independently, by one driving force exerted in the first direction perpendicular to an optical axis and by another driving force exerted in the second direction perpendicular to both the optical axis and the first direction, thereby preventing driving displacement from being generated at the time of compensating for unwanted motion such as hand shake while securing reliability against external impact, and having reduced power consumption at the time of compensating for the disturbance.

Abstract: A non-tracking non-imaging solar concentrator system, which is able to concentrate both beam light and diffuse light with high concentration ratio, comprises a Compound Parabolic Concentrator (CPC) and a domed divergent Fresnel lens. The system is configured by mounting the domed divergent Fresnel lens on the top of CPC, or making a chamber with its bottom thin transparent wall shaped into CPC and its top thin transparent wall shaped into domed divergent Fresnel lens to form a bulb-like close structure solar concentrator. Wherein, the non-image CPC with small acceptance half-angle is used to concentrate both beam light and diffuse light with high concentration ratio, and the domed divergent Fresnel lens is used to refract the incident light to enlarge the acceptance angle of CPC, and therefore to realize stationary concentration. The bulb-like close structure concentrators are stacked together to realize arbitrary high concentration ratio of solar concentrator.

Abstract: A handheld smart phone includes programming for performing various vision-related tests. The smart phone includes a touch sensitive screen, microphone, speaker, other sensors, processor and persistent storage for execution of software, multiple communications network interfaces and other device interfaces. The display delivers vision tests and, together with the speaker, related audio instructions to a user. The user interacts with the vision tests by using tactile and audio commands to the device screen and microphone. The test results are assembled into a report that can be transmitted to persons of the user's choice, such as a care provider. The capability is included for transmitting results to the remainder of the system for storage, analysis, events, alerts for medical personnel's user treatment and multiple user population analysis.

Abstract: A light diffusion control body includes at least two light diffusion control layers each having a regular internal structure. The regular internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The at least two light diffusion control layers includes a first light diffusion control layer and a second light diffusion control layer each having a minimum value of a haze value of 35% or more. The haze value is measured when one surface of each of the first light diffusion control layer and the second light diffusion control layer is irradiated sequentially with a light ray at an incident angle of ?70° to 70° with respect to the normal direction of the surface being 0°.

Abstract: Various embodiments include a camera with folded optics and lens shifting capabilities. Some embodiments include voice coil motor (VCM) actuator arrangements to provide autofocus (AF) and/or optical image stabilization (OIS) movement. Some embodiments include suspension arrangements.

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining a pupillary distance. For example, a product may include one or more tangible computer-readable non-transitory storage media including computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement operations of measuring a pupillary distance between pupils of a user. The operations may include receiving a captured image comprising first and second reflections of a light of a light source, the first reflection comprising a reflection of the light from a first pupil of the user, and the second reflection comprising a reflection of the light from a second pupil of the user; and determining the pupillary distance based on locations of the first and second reflections in the captured image and an estimated distance between an image capturing device and pupils of the user, when the image is captured.

Abstract: The present embodiment relates to a light transmission band change unit comprising: a base including a first axis; a blade arranged on the base and including a body, which has a first hole having a lens and an infrared pass filter arranged therein, a second hole having an infrared cut filter arranged therein, and a third hole into which the first axis is inserted; a magnet arranged between the base and the blade; a core coupled with the base and having a coil arranged thereon; and a blade cover including an upper plate arranged on the blade so as to have a fourth hole formed at a position corresponding to the lens, wherein at least a portion of the lens is arranged within the fourth hole.

Abstract: An imaging lens system includes eight lens elements which are, 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, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the imaging lens system has at least one lens surface having at least one inflection point. The imaging lens system has a total of eight lens elements.

Abstract: A metalens configured to shape the focus light into a flexibly designed pattern. The present teachings demonstrate the engineering of metalens with artificial focus pattern by creating line and ring-shaped focus as ‘drawing tools’. These metalens are fabricated through a single layer of silicon-based material through CMOS compatible nano fabrication process. The mechanism to generate artificial focus pattern can be applied to a plethora of future on-chip optical devices with applications ranging from beam engineering to next generation nano lithography.

Abstract: Techniques for providing wearable electronic devices with electrical components are disclosed. The electrical components can provide electrical technology to eyewear to facilitate audio support including enhanced hearing. The electrical components can operate independently or together with other electrical components provided elsewhere. The wearable electronic devices with electronic components can, for example, provide audio output, audio enhancements, or event-related audio content.

Abstract: An optical system includes a substrate. An image sensor is on the substrate. The image sensor has an image plane. A lens barrel defines a mechanical axis that intersects the image sensor and image plane. The lens barrel has a first coefficient of thermal expansion (CTE). A lens mount is integrally formed with the lens barrel. The lens mount is connected to the substrate. The lens mount has a second CTE. At least one lens element is in the lens barrel on the mechanical axis and defines an optical axis. A last powered optical surface of the at least one lens element is spaced along the optical axis from the image plane by a back focal length. At least one of the first and second CTEs limiting a change in the back focal length as a result of a change in temperature of the optical system.

Abstract: An interpupillary distance adjustment mechanism can be used to set the interpupillary distance (IPD) between a pair of independently pivoting monocular assemblies of a binocular optical device. Once the IPD of the binocular optical device has been set to match the IPD of a user, the interpupillary distance adjustment mechanism acts as a rotational stop enabling the user to return a monocular assembly of the binocular optical device to the desired position when the monocular assembly is moved from the stowed position to the operation position. An example interpupillary distance adjustment mechanism comprises: a housing adapted for attachment to a binocular optical device, a pair of set-stop pins, and a pair of thumb dials. The housing includes a pair of set-stop pin sheaths, one for each set-stop pin. Each thumb dial is operably connected to a set-stop pin and configured to longitudinally displace the operably connected set-stop pin from its sheath.

Abstract: A camera optical lens is provided, including, from an object side to an image side in sequence: a first, second, third, fourth and fifth lens respectively having positive, negative, negative, positive and negative refractive power, which satisfies conditions: ?0.17?f1/f2??0.12; 1.80?d1/d2?2.20; 0.15?d6/d8?0.20; 8.00?(R3+R4)/(R3?R4)?10.00. f1 and f2 respectively denote focal length of the first and second lens; d1 denotes on-axis thickness of the first lens; d2, d6 and d8 respectively denote on-axis distance from image-side surface of the first lens to object-side surface of the second lens, from image-side surface of the third lens to object-side surface of the fourth lens and from image-side surface of the fourth lens to object-side surface of the fifth lens; R3 and R4 respectively denote curvature radius of object-side surface and image-side surface of the second lens. The camera optical lens can satisfy design requirement of large aperture, wide-angle and ultra-thinness while having good optical functions.

Abstract: A device includes a host medium having a first refractive index value; a first layer comprising a first dielectric material having a second refractive index value, wherein the second refractive index value is greater than the first refractive index value, and wherein the first layer comprises a first step structure at a boundary between the first layer and the host medium; and a second layer comprising a second dielectric material and comprising a second step structure, the second layer having a third refractive index value higher than the first refractive index value of the host medium, wherein the second step structure is stacked on the first step structure, and, in response to an incident electromagnetic wave reaching the device, a first nanojet beam generated by the first step structure and a second nanojet beam generated by the second step structure are combined and focused around a first focusing point.

Abstract: The disclosure provides a straight waveguide phase change all-photonic Boolean logic device and a full binary logic implementation method thereof, including a ridge- shape straight waveguide structure, two phase change functional units near the two ends and a Bragg grating between two phase change functional units. The phase change functional units and Bragg grating are situated on the ridge of the waveguide. The write and read optic pulses have different wavelengths. The Bragg grating are designed to reflect the write optical pulse and transmit the read pulse, so that write pulses input from the two ends only act on the phase change functional unit closest to that end, and read pulse can go through the whole device from input end to output end. In terms of the logic implementation method, with three-step write operation, 16 full Boolean logic functions can be implemented in this device.

Abstract: Techniques for creating a replacement for optical elements with diffractive planar components based on metasurfaces are provided. In one example, a substantially flat optical component for lensing incoming electromagnetic radiation having at least one wavelength and a first phase into outgoing electromagnetic radiation having a second phase is provided.