this invention is a double eagles plastic lens composed of the optical system in the lens production environment changes, the error and the error distribution of the unit on the performance to minimize the deviation from the blood, to the distance of the optical system is relatively short, compared with the the miniaturization of a unit can be up to guangzhou, about to serve as a light source, in particular from the beam to be the optical system through the rotation of the deflection mirror directs the scanning lens system, through the injection of blood into the optical device to the injection. the (+), the refraction was the first scanning lens and a (-) of the refraction at the second scanning lens that is composed of characteristics.
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