Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A tablet PC supplementary device includes a base frame unit having multiple locating grooves spaced on a flat base panel thereof, and a holder frame unit, which includes a flat holder panel defining therein an accommodation open chamber for accommodating a tablet PC, a retractable connecting device pivotally connecting the flat holder panel to the base frame unit and pivotally and rotatably connecting the flat holder panel to the connecting device for enabling the flat holder panel to be adjusted horizontally and vertically to hold the loaded tablet PC in any desired tilted operating position or to protect the loaded tablet PC in a well-protected position convenient for carrying and storage.

Abstract: The present invention relates to a portable binder with a rotating frame, comprising a pedestal and a rotating frame, wherein the pedestal has a base and on both sides of the base, there is a lacing hole to be reeved by a binding tape, which can be used by tightening it around arms. An axle hole penetrates through the base to combine a coaxial connection shaft, and on the base, a supporting plate is established concavely on both sides to cover a proposed electronic device, while an axial part is established to interconnect the coaxial connection shaft on the supporting plate, and on the axial part, there is a rotation shaft that can be coaxially connected with the coaxial connection shaft. When the binding tape reeving the base is fastened around users' arms, the body of the rotating frame can be utilized to fix the electronic device, thus achieving the effect of making the electronic device portable when users go out.

Abstract: An adjustable stand for carrying an electronic device and adjusting a position on a desk is provided to include a clamp and a supporting element. The clamp has a positioning element that comprises two axial portions each having a through hole, a clamping element that comprises an adjusting portion with a plurality of notches, and an elastic element positioned between the positioning element and the clamping element for restoring the position. The supporting element has two terminal rods that are axially fixed to the axial portions of the positioning element, and a supporting rod formed between the two terminal rods for lodging into one of the notches of the clamping element.

Abstract: An adjustable clamp device for adjusting a length to clamp positioning is disclosed. The adjustable clamp device has a chassis, an adjusting element and an elastomer. The chassis has a pressing portion on a side thereof and a limiting portion on another side thereof. The limiting portion has a sliding space for mounting adjusting element, and the adjusting element comprises a sliding base and a buckling portion correspondingly positions on the two sides of the adjusting portion. The elastomer is positioned in the buckling portion for elastically moving in the sliding space.

Abstract: An adjustable stand for carrying an electronic device and adjusting a position on a desk is provided to include a clamp and a supporting element. The clamp has a positioning element that comprises two axial portions each having a through hole, a clamping element that comprises an adjusting portion with a plurality of notches, and an elastic element positioned between the positioning element and the clamping element for restoring the position. The supporting element has two terminal rods that are axially fixed to the axial portions of the positioning element, and a supporting rod formed between the two terminal rods for lodging into one of the notches of the clamping element.