发明名称 ROD GROUP, LINE LIGHT GENERATION OPTICAL SYSTEM AND LASER MARKING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a rod group generating a line light with large divergent angle, a line light generating optical system and a laser marking device. SOLUTION: The line light generation optical system 1 is composed of a semiconductor laser 50; a collimator lens 40; and a rod lens group 30. The rod lens group 30 is composed of two rod lenses 10, and 20, and each lens has its axial center lines 11, and 21, and outer circular sections 12, and 22 perpendicular to each axis respectively. On a part of each outer circumferential peripheries 12, and 22, the reflecting part 1a, and 2a are formed. The two rod lenses 10, and 20 provided with axes 11, and 21 which are almost parallel to each other and hold the axis L1 perpendicular to the axes inbetween the rod lenses 10, and 20. The outer peripheries 12, and 22 are arranged while being tangentially in contact with the axis L1, and the rod lenses are separately arranged along the axis L1 by prescribed interval. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005233676(A) 申请公布日期 2005.09.02
申请号 JP20040040136 申请日期 2004.02.17
申请人 HITACHI KOKI CO LTD 发明人 NISHIMURA KOJI
分类号 E04G21/18;G01C15/00;G02B3/00;(IPC1-7):G01C15/00 主分类号 E04G21/18
代理机构 代理人
主权项
地址