发明公开
EP0425310A1 Wide angle ophthalmic lens 失效
Weitwinkel-Augenlinse。

Wide angle ophthalmic lens
摘要:
An ophthalmic (10) lens has three elements, a contact lens (30), a center lens (36), and an entry lens (42). The lens produces a wide field, aerial image of the fundus (16) of the eye. The lens provides high resolution of the peripheral retina, and causes little or no distortion of the laser beam used for peripheral fundus laser treatment.
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