The utility model relates to
encoder technical field especially is related to a kind of stable plastic transparent shaft rotary type with luminous lamp
encoder, including the sleeve part and coding part of sequentially assembled, and the
light guide shaft core of being threaded in the axis, contact light part is provided in coding part inside, contact light part includes the fixed plate of base and base joint, setting has the placing groove in base, emitting body is installed in placing groove,
light guide shaft core one end and emitting
body contact, base periphery is equipped with multiple contact parts connected with emitting body, contact part and the terminal of coding part elastically contact and conduct
electricity.The utility model is through the terminal of multiple coding parts elastically contact and conduct
electricity of contact part of being set in base periphery, abandoned the
welding mode of transmission, effectively avoid the problem of poor contact, not bright, simultaneously, emitting body directly with
light guide shaft core contact, improve luminous efficiency and side luminous efficiency, so that
light source is more uniform and brightness is enough.