Abstract: In general, one aspect disclosed features a spectacle lens, comprising: a central zone having an optical center corresponding to the visual axis of an eye of a patient; and a peripheral zone peripheral to the central zone and comprising: a first zone having a first thickness, and a second zone having a second thickness, wherein: the second thickness varies from the first thickness, and a distance from the second zone to the optical center of the central zone is selected to generate pincushion distortion or barrel distortion in the eye of the patient.

Abstract: A film (1), an ophthalmic lens including a film (1), spectacles comprising an ophthalmic lens including a film (1), and a method of manufacturing a film (1) are described. The film (1) has a base refractive index and includes at least one gradient index optical element (7a, 7b) having an asymmetric refractive index profile.

Abstract: Embodiments of the disclosure relate to the use of dyes that impart localized regions of reduced transmittance across specific wavelength ranges. The inclusion of transmittance-attenuating dyes into a lens provides enhanced color contrast by tuning the spectrum of visible light transmission through the lens.

Abstract: Described are eyewear with one or more dimmable vision correction lens stacks. The eyewear can have various form factors, including eyeglasses with a separate lens stack for each eye. The vision correction lens stack may have a first lens and a second lens, with a dimmable liquid crystal layer arranged between the first lens and the second lens. The first lens and second lens may have the same refractive index, the refractive index may be configured according to a prescription of the user. The dimmable liquid crystal layer may be electrically coupled to a control module which may be used to change the light transmittance of the liquid crystal layer.

Abstract: A vibration-type actuator includes a vibrator, a contact member, a ball, and a base table having a third guide. The vibrator has an elastic member and an energy conversion element. The contact member is fixed to the base table, contacts the elastic member, and extends in a predetermined direction. The vibrator and the contact member are driven along the predetermined direction due to a vibration generated by a voltage applied to the energy conversion element. A first guide provided on the contact member extends in the predetermined direction and a second guide that is connected with the vibrator faces the first guide and moves integrally with the vibrator. The ball is held between the first guide and the second guide rollably in the predetermined direction. The second guide extends in the predetermined direction and includes a fitting projection portion loosely fitted to a groove portion provided on the third guide.

Abstract: An optical imaging system is described including first to sixth lenses sequentially disposed from an object side to an image side, and an image sensor configured to convert incident light reflected from a subject, having passed through the first to sixth lenses, into an electrical signal. One of the first to sixth lenses includes a spherical object-side surface and another of the first to sixth lenses includes corresponding aspherical object-side surfaces. The first to sixth lenses include corresponding aspherical image-side surfaces, and a lens of the first to sixth lenses that is closer to the object side than the one of the first to sixth lenses including the spherical object-side surface, has a highest refractive index among the first to sixth lenses.

Abstract: The present application discloses a system for powering a wearable e-reader. The system includes two optical units. The two optical units are part of the system that is wearable. The optical units comprise a front lit display. The system further includes a battery. The battery powers the two optical units.

Abstract: A quantum-dot optical film comprises: a binder, wherein a plurality of quantum dots, and a plurality of clay fragments are dispersed in the binder, wherein each of the clay fragments is capable of being water-resistant and oxygen-resistant.

Abstract: A head-mounted display device includes a display, a lens group and an actuator. The display is used for generating an image light beam. The lens group is disposed between the display and a target area and is adapted to focus the image light beam to form a display image in the target area. The actuator is coupled to the display or the lens group to periodically move the display or the lens group on a plane.

Abstract: An optical imaging system includes an optical path folding element, and a lens group including four or more lenses. A rearmost lens disposed closest to an imaging plane in the lens group has positive refractive power, and a rearward lens disposed closest to an object side of the rearmost lens has negative refractive power.

Abstract: An object of the present invention is to provide a vehicle that includes a display panel, a light source that irradiates light to the display panel, a first optical system that forms, onto a screen plate, a first optical image of a video on the display panel, and a second optical system that converts the first optical image into a second optical image that is a virtual image. The first and second optical systems are configured such that the first optical system's optical axis, at an incident surface side of the screen plate, is parallel to the second optical system's optical axis at an emission surface side of the screen plate. The first optical image formed on the screen plate is obtained by enlarging the video, and the virtual image is obtained by enlarging the first optical image formed on the screen plate by the second optical system.

Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.

Abstract: An optical adjustment mechanism of wearable device includes a fixed portion, a movable portion, and an adjusting element. The fixed portion includes an outer frame connected with a first optical element, and the first optical element has an optical axis, wherein the outer frame forms a sectional plane along a direction parallel to the optical axis. The movable portion is movable relative to the fixed portion, and includes a holder. The holder holds a second optical element and is movably connected to the outer frame. The adjusting element connects the movable portion and the fixed portion, wherein the movable portion may be moved relative to the fixed portion by the adjusting element.

Abstract: Provided is an eyeglass lens 1 configured to cause rays that have entered from an object-side surface 3 to be emitted from an eyeball-side surface 4, and cause the emitted rays to converge at a predetermined position A. The eyeglass lens 1 includes a lens substrate 2 having a plurality of substrate convex portions 6 on at least one of the object-side surface 3 and the eyeball-side surface 4, and a coating film covering the surface provided with the substrate convex portions 6. The shape of convex portions present on the outermost surface of the eyeglass lens located on a side on which the substrate convex portions 6 are provided is an approximate shape of the substrate convex portions configured to cause rays that have entered the eyeglass lens 1 to converge at a position B that is closer to the object than the predetermined position A is.

Abstract: A holder for an optical system of an endoscope, the holder including: a take-up region configured to receive an optical element; and at least one fixing region configured to fix the holder in the optical system by a soldered connection, the fixing region being separate from the take-up region; wherein a material of the holder is a base material that is provided with a coating, a material of the coating having better solderability than the base material, the coating being removed from the take-up region to expose a surface of the take-up region, the exposed surface being blackened by a laser-assisted surface treatment.

Abstract: The disclosure relates to augmented reality devices and methods for operating such devices. A waveguide with a diffractive optical elements-based architecture for an augmented reality device is provided. The waveguide includes a light in-coupling zone, a light expanding zone, and a light out-coupling zone. Each zone includes its own set of diffractive optical elements performing the light in-couple, light expand and light out-couple function. There are further provided an augmented reality display device and augmented reality glasses based on the waveguide with the diffractive optical elements-based architecture.

Abstract: A waveguide device includes a first diffractive element, a second diffractive element, a third diffractive element, and a waveguide element. The first diffractive element has a first grating configured to diffract light of a wavelength to propagate with a first diffraction angle. The second diffractive element has a second grating configured to diffract the light of the wavelength to propagate with a second diffraction angle. The third diffractive element has a third grating and a fourth grating. The third grating is configured to diffract the light of the wavelength to propagate with the first diffraction angle. The fourth grating is configured to diffract the light of the wavelength to propagate with the second diffraction angle. The waveguide element configured to guide light propagated from the first diffractive element and the second diffractive element to the third diffractive element.

Abstract: An electronic device according to an embodiment may include at least one display, a main frame to which the at least one display is mounted, a first support frame which is connected to the main frame through a first connector and includes a first antenna, a second support frame which is connected to the main frame through a second connector and includes a second antenna, at least one processor, and at least one sensor. The at least one processor may perform, when the at least one sensor detects that the electronic device is unfolded, wireless communication using the first antenna and the second antenna, and, when the at least one sensor detects that the electronic device is folded, may turn off the first antenna and/or the second antenna, connect first antenna and/or the second antenna to a ground, or shift a resonance frequency of first antenna and/or the second antenna.

Abstract: The present disclosure is directed to devices and/or systems of modifying the incoming light through spectacle lenses that utilise at least one auxiliary or regional optical element, to provide extension or elongation of the depth of focus for a myopic eye. The disclosure relates to methods of correcting myopia and controlling or reducing the rate of myopia progression utilising extension of the depth of focus provided by the at least one auxiliary or regional optical element configured within, or in conjunction, combination, or juxtaposition with spectacle lenses. This disclosure relates to the use of an axicon, a light sword element, or a peacock eye element within the regional optical element or a sub-lens. This disclosure also relates to the use of a plurality of axicons, light sword elements or peacock eye elements configured within, or in conjunction, combination, or juxtaposition with spectacle lenses.

Abstract: A soft contact lens (4) comprises a solid component, which is based on a polymer, and a liquid component which is distributed in the solid component and which comprises at least one compound which is selected from vitamin E, vitamin B2 and the respective derivatives thereof. The contact lens has a degree of transmission of type A ultraviolet radiation greater than 50% and a degree of transmission of type B ultraviolet radiation greater than 20%.