发明授权
US5712720A Lens switching apparatus for dual-lens optical scanner 失效
双透镜光学扫描仪的镜头切换装置

Lens switching apparatus for dual-lens optical scanner
摘要:
A lens switching apparatus for a dual-lens optical scanner includes a base, a plurality of magnetic elements, a plurality of electromagnetic elements, a guiding assembly and a slide block. Two optical lens with different magnification are mounted on the slide block. The slide block may be moved and positioned in one direction when one of the electromagnetic element attracting one adjacent magnetic element while another electromagnetic element repulsive another adjacent magnetic element. The dual-lens mounted on the slide block thus can be switched as desired for scanning process.
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