Abstract: The present disclosure relates to a patient motion tracking system for automatic generation of a region of interest on a 3D surface of a patient positioned in a radiotherapy treatment room. More particularly, the disclosure relates to an assistive approach of a motion tracking system, by which a region of interest (ROI) is automatically generated on a generated 3D surface of the patient. Furthermore, a method for automatically generating a ROI on the 3D surface of the patient is described. In particular, all the embodiments refer to systems integrating methods for automatic ROI generation in a radiotherapy treatment setup.

Abstract: An apparatus, system and method for a handpiece for ocular surgical. Included may be at least: a proximal portion having at least inlet ports for irrigation tubing and aspiration tubing, and providing an irrigation fluidic pathway extending therethrough from the irrigation tubing inlet port, and an aspiration fluidic pathway extending therethrough from the aspiration inlet port; a distal portion terminating in an emulsifying tip, and providing an aspiration pathway terminating in an aspiration output, and at least one irrigation pathway terminating in at least one irrigation output; and a swivel ball provided at a base of the proximal portion and having a first opening to the irrigation fluidic pathway, and a second opening to the aspiration fluidic pathway, which seats within a socket cup provided at an upper end of the distal portion.

Abstract: The present utility model provides an optical element, comprising: a light entry surface; a first reflective surface and a second reflective surface; a light exit surface; and at least one connecting surface, located between the first reflective surface and/or the second reflective surface on the one hand and the light exit surface on the other, wherein the connecting surface at least partly comprises an enhanced reflection part for expanding a maximum exit angle of emergent light exiting via the light exit surface. Advantages: there is no need to process a surface at the light exit surface, so the range of applicability of the optical element is increased; moreover, the optical element according to the present utility model has a greater distance between the light exit surface and light entry surface thereof, i.e. can be thicker, so the optical element can adapt to a greater variety of shapes.

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: An apparatus for mechanically coupling a motor to a rotor includes an outer ring including an inner surface shaped to define multiple recesses, an inner ring disposed within the outer ring and shaped to define multiple compartments having respective outer openings, which face the outer ring, and respective inner openings opposite the outer openings, and multiple gripping elements disposed within the compartments, respectively. The inner ring is configured to receive the rotor while the compartments are aligned with the of recesses, by virtue of the gripping elements sitting at least partially within the recesses. The outer ring is configured to couple with a shaft coupled with the motor such that rotation of the shaft by the motor causes the compartments to become misaligned with the recesses, thereby causing the outer ring to push the gripping elements, through the outer openings, against the rotor, through the inner openings.

Abstract: A method, a device, and a computer program product for determining a refractive error of an eye of a user are disclosed, as well as a method for producing a spectacle lens. The method for determining includes: displaying an image with a spatial modulation to the user; optionally, recording a reaction of the user to a variation of the spatial modulation over time; detecting a point in time at which a perception threshold of the user is reached; and determining the refractive error of the user from the spatial modulation, wherein the image contains a source image with several picture elements, wherein values for an image parameter are assigned to the picture elements, and wherein the spatial modulation is generated such that the values of the image parameter determine the values of a modulation parameter of the spatial modulation in the image.

Abstract: A method for configuring a processing circuit, the method may include (i) receiving, by the processing circuit, a compressed configuration information data structure (CCDS) that comprises multiple segments, wherein the CCDS was generated by a size-preserving compression process that maintains a size of the segments; (ii) decompressing the CCDS, by the processing circuit, to provide decompressed configuration information, wherein the decompressing comprises: searching for headers, wherein a header comprises sequence parameters, wherein the sequence parameters comprise at least one out of a length, an address field, and a type; and (iii) configuring the processing circuit using the decompressed configuration information, wherein the configuring is executed based on the headers.

Abstract: A heat exchange system of a vehicle lighting device. The heat exchange system includes an air duct that is arranged facing a heat sink for transferring heat by the light sources of the lighting device. The air duct includes an air inlet portion with a first air passage area receiving an airflow into the air duct and an air outlet portion with a second air passage area directing the airflow towards a heatsink. In addition, an intermediate portion is disposed between the air inlet portion and the air outlet portion. The intermediate portion is having a variable cross-section in a non-linear way. The largest section of the intermediate portion is superior to the section of both the first air passage area and the second air passage area.

Abstract: A light guiding device includes a first light guide having an end surface, a corner section and a downstream section. The corner section of the first light guide has a corner and is closer to the end surface of the first light guide than the downstream section. Light incident surfaces of the first light guide include the end surface, and an inner side surface of the corner section located on the inner side of the corner. A light exit surface of the first light guide includes an outer side surface of the first light guide located on the outer side of the corner. The light incident surfaces of the first light guide may additionally include the inner side surface of the corner section. It is found that the corner section can be lit on when the corner section is observed along the direction tangent to the corner section.

Abstract: Systems and methods are provided for vehicle navigation. In one implementation, a system for a host vehicle includes at least one processor programmed to determine, based on an output of at least one sensor of the host vehicle, one or more target dynamics of a target vehicle; determine, based on one or more host dynamics of the host vehicle and the target dynamics, a time to collision; determine, based on the time to collision and the host dynamics, a host deceleration for the host vehicle to avoid the collision; determine, based on the time to collision and the target dynamics, a target deceleration for the target vehicle to avoid the collision; determine, based on the host deceleration and the target deceleration, a host deceleration threshold; and determine, based on a speed of the host vehicle and the host deceleration threshold, to brake the host vehicle.

Abstract: A lighting decoration module includes an LGP, at least one light source, and first and second optical microstructures. The LGP has at least one light incident surface and first and second light exit surfaces that are opposite to each other and connect the light incident surface. The light source corresponds to the light incident surface. The first optical microstructures are disposed on the first light exit surface and each has a first surface facing the light source. A first angle between the first surface and the first light exit surface is within a range from 40-60 degrees or 15-35 degrees. The second optical microstructures are disposed on the second light exit surface and each has a second surface facing the light source. A second angle between the second surface and the second light exit surface is within a range from 40-60 degrees.

Abstract: A lighting device for a vehicle, the lighting device being configured to perform at least one lighting function and including at least one optical module, an output lens and a housing including the at least one optical module, with the lighting device including a textured film covering a surface of the device, the textured film having patterns configured to reduce the transmission of light entering the lighting device through the surface.

Abstract: A method for tinting a spectacle lens substrate includes providing a spectacle lens substrate made from a polymeric lens material, providing a composition having a polymeric carrier material, applying a pattern of the composition on a surface of the spectacle lens substrate, and heating the spectacle lens substrate to allow for diffusion of a dye substance between the carrier material and the lens material. Moreover, a composition for in-substrate tinting of a polymeric spectacle lens substrate and a spectacle lens substrate having a polymeric lens material which exhibits a pattern of a composition having a polymeric carrier material applied on a surface of the spectacle lens substrate are presented.

Abstract: A method for applying a surface pattern on a surface of a spectacle lens substrate includes the following steps: providing a spectacle lens substrate having a polymeric lens material, providing a composition containing a swelling agent, applying a pattern of the composition on the surface of the spectacle lens substrate, and allowing for diffusion of the swelling agent from the composition into the lens material. Moreover, a spectacle lens substrate has a polymeric lens material and exhibits a surface pattern on a surface of the spectacle lens substrate. The polymeric lens material includes a swelling agent at positions forming the surface pattern, and a spectacle lens substrate contains a polymeric lens material, wherein the spectacle lens substrate exhibits a pattern of a composition containing a swelling agent applied on a surface of the spectacle lens substrate.

Abstract: Methods for dispensing eyeglasses are disclosed. The methods involve making a subjective refraction and an objective refraction and sending the information to a calculation computer to combine both refractions to calculate the person's prescription. The person's prescription is subsequently sent to a manufacturing location separate from the calculation computer for manufacture of the lenses.

Abstract: Computer-implemented systems and methods link time-stamped OCT scan data of a patient's retina in a database to a biometric identifier for the patient. An appropriately trained artificial intelligence (AI) computer system determines whether the patient has an eye disease based on the differences between time-stamped OCT scan data for the patient from different time scans.

Abstract: A method for quality control of contact lens packages comprises receiving a first data set comprising a plurality of images of a contact lens package having physically implanted defects; receiving a second data set comprising a plurality of images of a contact lens package having digitally implanted defects; testing and training, on the first and second data set, a model to determine a validated one or more quality control models; capturing image data of a package of a contact lens; analyzing, based on the validated one or more quality control models, the image data; and causing, based on the analyzing, output of a quality control metric indicative of at least an accept or reject condition of the package.

Abstract: Provided is an automotive lamp optical element and an automotive headlamp. The automotive lamp optical element includes a light-incident portion, a light-passing portion and a light-emitting portion sequentially connected and integrally formed. The light-incident portion is configured to focus and emit light from a light source into the light-passing portion. The area of a longitudinal section of the light-passing portion gradually increases in an optical axis direction. The light-emitting portion protrudes in a direction facing away from the light-incident portion and is configured to refract light emitted through the light-passing portion.

Abstract: According to embodiments of the present disclosure, a method, apparatus, device and storage medium for image shooting are provided. The method comprises initiating a first camera and a second camera different from the first camera for image shooting. The method further comprises presenting a shooting page in a graphical user interface displayed by a display device. The shooting page comprises a first shooting window for presenting a first scene captured by the first camera and a second shooting window for presenting a second scene captured by the second camera. The method further comprises presenting a composite image on the shooting page in the graphical user interface in response to an indication of shooting completion. The composite image is generated based on a first image taken by the first camera and a second image taken by the second camera. In this way, flexible and interesting image shooting experience is provided.