Image stabilization lens
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[Concept]
In order to avoid the photographers hand-held telephoto lens photography affect the screen image quality, research and developed a new type of camera lens is difficult to steady the camera.
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[Structure]
Lens installed on a dedicated optical compensation devices reduce the vibration, this optical compensation device by the swing of the gyroscope and mobile optical system.
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[Disadvantages]
Hand-held camera shot or other reasons by the photographer when the subject is light light cameras to the film surface imaging, because when using slow shutter or lens focal length telephoto end caused by the shaking of the camera and lens, the light on the film surface of the subject imaging fuzzy phenomenon.
To prevent or diminish this phenomenon, designed to reduce vibration cameras to eliminate lens shake and the lens optical axis offset, the subject of light reaching the film surface to maintain a relatively stable position.
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[Works]
Because of when using slow shutter or lens focal length telephoto end of the shaking caused by hand-held camera lens optical axis decomposition for the vertical movement (up and down direction of sloshing) and traverse (about the direction of shaking), relying on the lens within the swing gyroscope (driven by the magnetic circuit board on the direction of the angular velocity sensor) detection optical axis shaking the degree of deviation detection data is sent to the microcomputer for ultra-high-speed calculations, calculation results are transferred replaced the drive signal, and then eliminate the shaking impact move the optical system and a magnet integrated structure of the shake compensation, and ultimately achieve the purpose to prevent or diminish the shock impact.
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【Article is excerpted from: Baidu Encyclopedia】
【Network reprint / Just reference】
【Translation is by Goolge】
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