Abstract: A backlight module includes a light guide plate, a light source, a first prism sheet, and a second prism sheet. The light source is disposed on a light incident surface of the light guide plate. The first prism sheet is disposed on a side of a light exiting surface of the light guide plate and has multiple first prism structures facing the light guide plate. The second prism sheet has multiple second prism structures facing the light guide plate. An included angle between an extending direction of the first prism structures and an extending direction of the second prism structures is greater than or equal to 85 degrees and less than or equal to 95 degrees. An included angle between the extending direction of the second prism structures and the light incident surface is greater than or equal to 85 degrees and less than or equal to 95 degrees.

Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: A package structure and method for forming the same are provided. The package structure includes a first through via structure formed in a substrate and a semiconductor die formed below the first through via structure. The package structure further includes a conductive structure formed in a passivation layer over the substrate. The conductive structure includes a first via portion and a second via portion, the first via portion is directly over the first through via structure, and there is no conductive material directly below and in direct contact with the second via portion.

Abstract: A myopia management soft contact lens design derive from analysis of overnight orthokeratology procedure that is to obtain the corneal height data before and after treatment according to reference position of cornea before and after treatment by mathematical calculation and then superimpose data with reference position of cornea, and then obtain corresponding central optical zone size and peripheral treatment zone size by obtaining the difference between corneal changes before and after treatment using corneal height data and tangential curvature data, and then calculate power change data before and after corneal treatment by using position of central optical zone and peripheral treatment zone to match the axial curvature data, the algorithm, and then use the power change data to distinguish different myopia power correction ranges to analyze the corresponding different power profile, and then apply this power profile to front curved surface of lens for the manufacture of soft contact lenses.

Abstract: Orthokeratology lens that uses aspheric E value to control tear height to sloe down the growth rate of the eyeball. The lens includes treat treatment zone through which light passes to image at retina of eyeball and positioning zone of non-visual area outside treatment zone. The treatment zone includes base curve and reverse curve formed on outside of base curve. The positioning zone includes alignment curve and peripheral curve located outside alignment curve, Center point is formed in center of base curve, junction of base curve and reverse curve forms first point of intersection, junction of reverse curve and alignment curve forms second point of intersection, and junction of alignment curve and peripheral curve forms third point of intersection. Linear distance between center point and cornea of preset eyeball is between 9 ?m and 21 ?m, Linear distance between first point of intersection and cornea of preset eyeball is between 89 ?m and 1189 ?m.

Abstract: An aspheric lens includes a treatment zone through which light passes to image at the retina of eyeball and a positioning zone of non-visual area outside treatment zone. The treatment zone includes a base curve and a reverse curve formed on outside of base curve. The positioning zone includes an alignment curve and a peripheral curve located outside alignment curve. A center point is formed in center of base curve, the junction of base curve and reverse curve forms a first point of intersection, the junction of reverse curve and alignment curve forms a second point of intersection, and the junction of alignment curve and peripheral curve forms a third point of intersection. The linear distance between the center point and the cornea of the preset eyeball is between 9 ?m˜21 ?m. The linear distance between the first point of intersection and the cornea of the preset eyeball is between 89 ?m˜189 ?m.

Abstract: A multi-curve multi-section alignment structure for an orthokeratology lens and a method thereof are disclosed. The orthokeratology lens includes a base curve formed on a central part of an inner surface thereof, and a reverse curve outwardly formed outside the base curve, an alignment curve outwardly formed outside the reverse curve and configured to align to a cornea of an eyeball, and a peripheral curve outwardly formed outside the alignment curve. The cornea has an alignment region contacting the alignment curve, and the alignment region is divided into sections, and the alignment curve includes alignment sections formed correspondingly in position to the sections and matching curvatures of the sections of the alignment region, so that the orthokeratology lens can be stably aligned with the eyeball, and when a wearer's eyelid is closed, the orthokeratology lens cannot decenter easily.

Abstract: In one embodiment, a method includes detecting, by a stall detection sensor in a driver coupled to a stepper motor, a first set of time-off periods in a rising commutation phase of motor current during current regulation. The stall detection sensor further detects a second set of time-off periods in a falling commutation phase of motor current during current regulation. Next, the stall detection sensor compares the first set of time-off periods with the second set of time-off periods and determines whether the stepper motor is stalled based on the comparison of the first set of time-off periods with the second set of time-off periods.

Abstract: An orthokeratology lens is disclosed. A central optical zone is formed on an outer surface and an inner surface of the orthokeratology lens and can pass light to clearly focus on a central area of retina of eyeball; peripheral optical zones surround the central optical zone and can pass light to focus on a peripheral blurring area around the central area; a central part of the inner surface includes a base curve with eccentricity in range of 0 to 4, and a reverse curve, an alignment curve and a peripheral curve disposed outside the base curve in an outward order. A junction between the base curve and the reverse curve has a crossover point formed thereon, and a straight-line distance from the cornea of the eye ball to the crossover point between the base curve and the reverse curve is in range of 89 ?m to 189 ?m.

Abstract: A lens with an optical area to increase a defocus image refractive powers is disclosed. A central optical zone of the lens includes a non-circular optical area, and a defocus area formed on a part thereof other than the optical area. An outer surface of the peripheral optical zone is aspheric, so that the original space of the central optical zone can be effectively used to increase the defocus image area of the retina of eye ball and light passing the peripheral optical zones can create different amounts of peripheral blurring areas in front of different areas of the retina; this defocusing of the images, providing more controlled amount of myopic defocus to the retina, which acts as a putative cue to slow myopic eye growth.

Abstract: A design structure of a reverse curve of an orthokeratology lens is disclosed. A central part of an inner surface of the orthokeratology lens includes a base curve, and also includes, from the inside to the outside, a reverse curve, an alignment curve and a peripheral curve disposed outside the base curve, and a straight-line distance from the crossover point formed on a junction between the base curve and the reverse curve to the cornea is in a range of 89 ?m to 189 ?m. Compared with the conventional orthokeratology lens, the orthokeratology lens having the straight-line distance from the crossover point to the cornea in range of 89 ?m to 189 ?m can provide more peripheral myopic defocus, so as to improve myopia control effect.

Abstract: An aspheric lens capable of using monocular retinal rivalry effect to control axial length grown rate is disclosed. The aspheric lens includes an optical area for making retina of a wearer's eyeball occur monocular retinal rivalry phenomenon. When the lens is worn on the wearer's eyeball, the retina of eyeball can occur monocular retinal rivalry phenomenon, so that eyeball growth rate can be controlled by monocular retinal rivalry phenomenon, thereby effectively slowing myopia or hyperopia progression, to achieve the effect of correcting and improving myopia or hyperopia.

Abstract: In one embodiment, a method includes detecting, by a stall detection sensor in a driver coupled to a stepper motor, a first set of time-off periods in a rising commutation phase of motor current during current regulation. The stall detection sensor further detects a second set of time-off periods in a falling commutation phase of motor current during current regulation. Next, the stall detection sensor compares the first set of time-off periods with the second set of time-off periods and determines whether the stepper motor is stalled based on the comparison of the first set of time-off periods with the second set of time-off periods.

Abstract: In one embodiment, a method includes detecting, by a stall detection sensor in a driver coupled to a stepper motor, a first set of time-off periods in a rising commutation phase of motor current during current regulation. The stall detection sensor further detects a second set of time-off periods in a falling commutation phase of motor current during current regulation. Next, the stall detection sensor compares the first set of time-off periods with the second set of time-off periods and determines whether the stepper motor is stalled based on the comparison of the first set of time-off periods with the second set of time-off periods.

Abstract: The process for preparing contact lens with films by plasma enhanced chemical vapor deposition to apply plasma modification on contact lens to form hydrophilic functional groups on the surface of contact lens, and then respectively heating PEGMA and NVP into a gaseous state, and depositing the gaseous PEGMA and NVP on the substrate by means of PECVD so as to form the thin film on the substrate. By means of the thin film, the contact lens can reveal stable hydrophilicity and anti-fouling properties, so when the patient wear the contact lens, he or she does not feel uncomfortable foreign body sensation, significantly reducing the deposition of proteins and corneal infection risk.

Abstract: A process for preparing contact lens with film by plasma UV induced grafting polymerization is disclosed to plasma-modification on contact lens to form hydrophilic functional groups on said contact lens surface, and then to immerse said contact lens in a solution of the mixture of NVP, PEGMA and photoinitiator, and then remove said contact lens from said solution and expose said contact lens to an ultraviolet light from an ultraviolet device to form a thin film on said contact lens surface. Through the thin film, the contact lens can have good hydrophilicity and anti-fouling properties, so when the patient wear said contact lens, he or she does not feel uncomfortable foreign body sensation, significantly reducing deposit and corneal infection risk.

Abstract: A myopia control lens with aspheric surface to create peripheral defocus onto varies regions of a retina is disclosed. This lens includes a central optical zone and varies of asymmetrical peripheral optical zones surrounding the central optical zone. Varies regions of asymmetric periphery optical zones create different amounts of blur surrounding a central area. The outer peripheral surface consists of different regions and different amounts of asymmetrical aspheric, so that light passing the peripheral optical zones can create different amounts of peripheral blurring areas in front of different areas of the retina; this defocusing of the images, providing more controlled amount of myopic blur to the retina, which acts as a putative cue to slow myopic eye growth.

Abstract: In one embodiment, a method includes detecting, by a stall detection sensor in a driver coupled to a stepper motor, a first set of time-off periods in a rising commutation phase of motor current during current regulation. The stall detection sensor further detects a second set of time-off periods in a falling commutation phase of motor current during current regulation. Next, the stall detection sensor compares the first set of time-off periods with the second set of time-off periods and determines whether the stepper motor is stalled based on the comparison of the first set of time-off periods with the second set of time-off periods.

Abstract: A muzzle suitable for holding different sized nail clamps includes a restricting plate and a movable member. The movable member is coupled to the cover and movable in the restricting direction. The restricting plate is inserted in the nail-hitting track and movable in the restricting direction. Therefore, the restricting plate can be moved to press against the second lateral side of different sized nail clamps to clamp the nail clamp between the lateral surface of the nail-hitting track and the restricting plate, and the nail clamp can be firmly positioned in the nail-hitting track without slipping.

Abstract: A muzzle suitable for holding different sized nail clamps includes a restricting plate and a movable member. The movable member is coupled to the cover and movable in the restricting direction. The restricting plate is inserted in the nail-hitting track and movable in the restricting direction. Therefore, the restricting plate can be moved to press against the second lateral side of different sized nail clamps to clamp the nail clamp between the lateral surface of the nail-hitting track and the restricting plate, and the nail clamp can be firmly positioned in the nail-hitting track without slipping.