发明授权
US06905068B2 Focusing arrangement and method in electro-optical readers 有权
电光读取器中的聚焦布置和方法

Focusing arrangement and method in electro-optical readers
摘要:
Focusing in an electro-optical reader for reading indicia is obtained by moving one prism relative to another prism. An outgoing laser beam directed to indicia for reflection therefrom and/or return light reflected from the indicia is focused by the moving prism.
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