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: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and an assist assembly. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The assist assembly limits the movement of the movable portion relative to the fixed portion.

Abstract: An automatic document feeder includes an upper cover, a pick-up arm, a restriction element, and a document stopper. The pick-up arm is movable between a first position and a second position. A rotating shaft of the restriction element is pivotally coupled to the pick-up arm. A rotating shaft of the document stopper is pivotally coupled to the upper cover. Moreover, the rotating shaft of the restriction element and the rotating shaft of the document stopper are not in parallel with each other. When the pick-up arm is located at the first position, a swinging action of the document stopper is limited by the restriction element. When the pick-up arm is located at the second position, the swinging action of the document stopper is no longer limited by the restriction element, so that the document stopper can be freely swung.

Abstract: The present invention discloses a sheet feed scanner including an auto document feeder, a flatbed scanner and a power-switching mechanism. The power-switching mechanism includes a first shaft, a power source, a clutch, a first gear, a second gear, and an elastic limitation structure. The clutch includes a first incline and a second incline. The elastic limitation structure pushes the first incline or the second incline of the clutch. When the first shaft is rotated in a first direction, the first incline is pushed by the elastic limitation structure so that the clutch is coupled to the first gear for driving the automatic document feeder. When the first shaft is rotated in a second direction, the second incline is pushed by the elastic limitation structure so that the clutch is coupled to the second gear for driving the flatbed scanner.

Abstract: A scanning apparatus includes a scanning module and a sheet size detecting mechanism. The scanning module is used for acquiring an image of a paper sheet. The sheet size detecting mechanism includes a first sheet guide part, a second sheet guide part, and a controlling unit. The first sheet guide part and the second sheet guide part are contacted with two parallel edges of the paper sheet, respectively. A light-emitting unit is disposed on the second sheet guide part. The light-emitting unit is used for projecting a light beam onto an optical sensing element of the scanning module. According to the light beam, the optical sensing element generates a sensing signal. According to the sensing signal, a distance between the two parallel edges of the paper sheet is acquired.

Abstract: An automatic document feeder includes an upper cover, a pick-up arm, a restriction element, and a document stopper. The pick-up arm is movable between a first position and a second position. A rotating shaft of the restriction element is pivotally coupled to the pick-up arm. A rotating shaft of the document stopper is pivotally coupled to the upper cover. Moreover, the rotating shaft of the restriction element and the rotating shaft of the document stopper are not in parallel with each other. When the pick-up arm is located at the first position, a swinging action of the document stopper is limited by the restriction element. When the pick-up arm is located at the second position, the swinging action of the document stopper is no longer limited by the restriction element, so that the document stopper can be freely swung.

Abstract: The present invention discloses a sheet feed scanner including an auto document feeder, a flatbed scanner and a power-switching mechanism. The power-switching mechanism includes a first shaft, a power source, a clutch, a first gear, a second gear, and an elastic limitation structure. The clutch includes a first incline and a second incline. The elastic limitation structure pushes the first incline or the second incline of the clutch. When the first shaft is rotated in a first direction, the first incline is pushed by the elastic limitation structure so that the clutch is coupled to the first gear for driving the automatic document feeder. When the first shaft is rotated in a second direction, the second incline is pushed by the elastic limitation structure so that the clutch is coupled to the second gear for driving the flatbed scanner.

Abstract: A scanning apparatus includes a scanning module and a sheet size detecting mechanism. The scanning module is used for acquiring an image of a paper sheet. The sheet size detecting mechanism includes a first sheet guide part, a second sheet guide part, and a controlling unit. The first sheet guide part and the second sheet guide part are contacted with two parallel edges of the paper sheet, respectively. A light-emitting unit is disposed on the second sheet guide part. The light-emitting unit is used for projecting a light beam onto an optical sensing element of the scanning module. According to the light beam, the optical sensing element generates a sensing signal. According to the sensing signal, a distance between the two parallel edges of the paper sheet is acquired.

Abstract: A duplex document feeding device includes a first paper transfer channel, a second paper transfer channel, a paper exit, a power source, a paper pick-up mechanism, a paper ejecting mechanism, and a linking mechanism. The paper ejecting mechanism includes an ejecting drive roller and an ejecting idler roller. After a paper is ejected from the first paper transfer channel and the paper is introduced into the second paper transfer channel by the paper ejecting mechanism, the linking mechanism is driven by the power source, so that the ejecting idler roller is shifted and moved away from the ejecting drive roller. Consequently, the front end of the paper can be smoothly ejected from the paper exit.

Abstract: A scanning apparatus for scanning a bound document includes a scanning flatbed, a lighting device, and a scanning head assembly. The scanning flatbed includes a platen and an inclined plane, wherein the platen is adjoined with the inclined plane, and the platen supports a document to be scanned. The lighting device, facing the scanning flatbed, projects light onto the document, wherein the lighting device includes a first portion and a second portion, and the first portion and the second portion respectively comprise a plurality of LEDs arranged in an array. The scanning head assembly, coupled to the lighting device, scans the document. The first portion is located closer to the inclined plane than the second portion, and intervals between the LEDs of the first portion are smaller than intervals between the LEDs of the second portion.

Abstract: A scanning apparatus for scanning a bound document includes a scanning flatbed, a lighting device, and a scanning head assembly. The scanning flatbed includes a platen and an inclined plane, wherein the platen is adjoined with the inclined plane, and the platen supports a document to be scanned. The lighting device, facing the scanning flatbed, projects light onto the document, wherein the lighting device includes a first portion and a second portion, and the first portion and the second portion respectively comprise a plurality of LEDs arranged in an array. The scanning head assembly, coupled to the lighting device, scans the document. The first portion is located closer to the inclined plane than the second portion, and intervals between the LEDs of the first portion are smaller than intervals between the LEDs of the second portion.