发明名称 |
RANGE FINDING DEVICE AND OBJECT DETECTION DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a range finding device and an object detection device capable of detecting light beams reflected from an object to be measured, and capable of high-precision range finding. SOLUTION: A projecting optical system 11 includes a light source 12 and a projecting lens (collimating lens) 13 serving as a light intensity correcting means. The light source 12 is a laser diode (LD) for outputting light beams corresponding to a drive signal input from a laser diode drive circuit (LD drive circuit) 33. The projecting lens 13 is for projecting the light beams output from the LD 12 toward the object T to be measured, and for correcting the intensity distribution of the light beams output from the LD 12; the intensity distribution of the light beams is corrected so that the light beams output from the LD 12 at a position a predetermined distance away from the projecting lens 13 have higher intensity at their peripheries than near their optical axes. The projecting lens 13 includes an aspherical lens portion and a cylindrical lens portion.</p> |
申请公布号 |
JP2002214327(A) |
申请公布日期 |
2002.07.31 |
申请号 |
JP20010014800 |
申请日期 |
2001.01.23 |
申请人 |
HAMAMATSU PHOTONICS KK |
发明人 |
NAKASE SHIGEKI;NAKAMURA SHIGEYUKI;OTA TAKESHI;SHIMANO HIROMI;TOTSUKA HIROTOMO |
分类号 |
G01C3/06;G01S7/48;G01S17/10;G02B27/00;(IPC1-7):G01S7/48 |
主分类号 |
G01C3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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