发明名称 Optical reading device
摘要 PCT No. PCT/DE94/00881 Sec. 371 Date Feb. 5, 1996 Sec. 102(e) Date Feb. 5, 1996 PCT Filed Jul. 28, 1994 PCT Pub. No. WO95/04950 PCT Pub. Date Feb. 16, 1995An optical reading device is provided with a rod-shaped lens body having a first and a second pair of side surfaces extending in the longitudinal direction of the rod and, in pairs, disposed opposite of one another. At least one side surface of the first pair of side surfaces is configured as curved surface which is curved convexly in the directions of both the length and the width of the rod. At least one side surface of the second pair of side surfaces has an additional curved surface. In this manner, a magnifying lens with two different magnification options is created.
申请公布号 US5694256(A) 申请公布日期 1997.12.02
申请号 US19960596145 申请日期 1996.02.05
申请人 ESCHENBACH OPTIK GMBH & CO. 发明人 WINKLER, KURT
分类号 G02B25/00;(IPC1-7):G02B27/02 主分类号 G02B25/00
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