Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.

Abstract: A bicycle handlebar includes a handlebar body and a recessed structure. The handlebar body has an outer surface. The recessed structure is recessed from the outer surface of the handlebar body, and has a mounting surface that is indented from the outer surface of the handlebar body and that is adapted for a control device to be mounted thereto.

Abstract: A bicycle crank may include a first lug, a second lug and a transition region. The first lug is for connecting a spindle. The second lug is for connecting a pedal. The transition region interconnects the first lug and the second lug, and is formed from a fiber reinforced thermoplastic material that includes a fiber component and a thermoplastic component.

Abstract: A Fresnel lens includes a Fresnel surface that includes effective Fresnel surfaces allowing imaging rays to pass through. Two adjacent effective Fresnel surfaces are connected through a non-effective Fresnel surface. On a cross-section including an optical axis of the Fresnel lens, a draft angle is between a reference line and a connecting straight line between one end of each non-effective Fresnel surface located at a tooth peak of the Fresnel lens and the other end of each non-effective Fresnel surface located at a tooth valley of the Fresnel lens. The optical axis coincides with the cross-section. The reference line is parallel to the optical axis and passes through the end of the effective Fresnel surface located at the tooth peak of the Fresnel lens. The draft angles each smaller than 90 degrees include first, second, third, fourth, and fifth draft angles which gradually increase radially outward from the optical axis.

Abstract: A Fresnel lens includes a Fresnel surface that includes effective Fresnel surfaces allowing imaging rays to pass through. Two adjacent effective Fresnel surfaces are connected through a non-effective Fresnel surface. On a cross-section including an optical axis of the Fresnel lens, a draft angle is between a reference line and a connecting straight line between one end of each non-effective Fresnel surface located at a tooth peak of the Fresnel lens and the other end of each non-effective Fresnel surface located at a tooth valley of the Fresnel lens. The optical axis coincides with the cross-section. The reference line is parallel to the optical axis and passes through the end of the effective Fresnel surface located at the tooth peak of the Fresnel lens. The draft angles each smaller than 90 degrees include first, second, third, fourth, and fifth draft angles which gradually increase radially outward from the optical axis.

Abstract: Provided is a Fresnel lens including a lens body, a planar surface on one side of the lens body, and a Fresnel surface located on another side of the lens body opposite to the planar surface, wherein the Fresnel surface includes alternating effective portions and non-effective portions, and the non-effective portions have non-smooth microstructures.

Abstract: The present invention provides a virtual conferencing system including a wearable information device to be worn by a user; an environmental information capturing device that captures environmental information; a virtual simulation device that receives the environmental information captured by the environmental information capturing device, calculates simulation conferencing scenes by an intelligence algorithm, and transmits the simulation conferencing scenes to the wearable information device as the user's feedbacks.

Abstract: The present invention provides a virtual conferencing system including a wearable information device to be worn by a user; an environmental information capturing device that captures environmental information; a virtual simulation device that receives the environmental information captured by the environmental information capturing device, calculates simulation conferencing scenes by an intelligence algorithm, and transmits the simulation conferencing scenes to the wearable information device as the user's feedbacks.

Abstract: A steel wire retainer for a sliding block comprises a plurality of steel wire retaining members, each of which includes a locking section on the sliding block and a plurality of steel wire retaining members. The steel wire retaining members each has a hook formed on the retaining portion thereof for hooking the locking section of the sliding block. The restraining portion of the respective steel wire retaining members will cooperate with the rolling grooves of the sliding block to form a ball rolling path, and the restraining portion of the respective steel wire retaining members is formed with a plurality of reinforced folding portions. The simple, low cost and easily assembled steel wire retaining members have sufficient support strength and are suitable for various sized sliding blocks and can make the linear transmission apparatus operate stably.

Abstract: A roller connecting and retaining device comprises two connecting portions, a plurality of retaining portions and spacer portions. The retaining portions are oppositely arranged in pairs and connected vertically to the connecting portions. The spacer portions are connected between the upper end and the lower end of the paired opposite retaining portions. Two contacting edges are formed at both sides of the respective spacer portions and have a linear contact with the rolling surface of the rollers, and the contacting edges of the opposite spacer portions are located correspondingly to the axial center of the rollers and are arranged at both sides of the inactive contact surface of the rollers. A mold-releasing concave is formed in each conjunction between the spacer portion and the retaining portion. Such design facilitates injection molding process, mold opening, and mass production.

Abstract: A roller connecting and retaining device comprises two connecting portions, a plurality of retaining portions and spacer portions. The retaining portions are oppositely arranged in pairs and connected vertically to the connecting portions. The spacer portions are connected between the upper end and the lower end of the paired opposite retaining portions. Two contacting edges are formed at both sides of the respective spacer portions and have a linear contact with the rolling surface of the rollers, and the contacting edges of the opposite spacer portions are located correspondingly to the axial center of the rollers and are arranged at both sides of the inactive contact surface of the rollers. A mold-releasing concave is formed in each conjunction between the spacer portion and the retaining portion. Such design facilitates injection molding process, mold opening, and mass production.

Abstract: A steel wire retainer for a sliding block comprises a plurality of steel wire retaining members, each of which includes a locking section on the sliding block and a plurality of steel wire retaining members. The steel wire retaining members each has a hook formed on the retaining portion thereof for hooking the locking section of the sliding block. The restraining portion of the respective steel wire retaining members will cooperate with the rolling grooves of the sliding block to form a ball rolling path, and the restraining portion of the respective steel wire retaining members is formed with a plurality of reinforced folding portions. The simple, low cost and easily assembled steel wire retaining members have sufficient support strength and are suitable for various sized sliding blocks and can make the linear transmission apparatus operate stably.

Abstract: A lubrication system for a linear guideway is disposed between an end cap and a capping plate at either side of a sliding block, and comprises: an oil feeding hole, a first oil guiding route, a first oil-flowing hole, a second oil guiding route, a second oil-flowing hole, an upper ball rolling groove and a lower ball rolling groove. The lubrication system for a linear guideway is a three dimensional structure for enabling oil to flow in a 3D manner into the respective ball rolling grooves to lubricate rolling balls more evenly, and the problem of oil leakage can also be prevented.