发明名称 Optometric device for eyesight testing
摘要 The optometric device has a pair of left and right lens elements (10) with test windows (11) in which different optical systems with different optical characteristics are inserted selectively. A target device (4) provides a projected test image for nearsight range eyesight testing, with each of the left and right lens elements provided with a flap mechanism, controlling its movement to allow eyesight testing in the far range.
申请公布号 DE19728262(A1) 申请公布日期 1998.01.08
申请号 DE19971028262 申请日期 1997.07.02
申请人 NIDEK CO., LTD., GAMAGORI, AICHI, JP 发明人 HOSOI, YOSHINOBU, GAMAGORI, JP;TERABE, HIROHISA, TOYOKAWA, AICHI, JP;HAYASHI, AKIHIRO, TOYOKAWA, AICHI, JP
分类号 A61B3/028;(IPC1-7):A61B3/028 主分类号 A61B3/028
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