公开(公告)号：EP1144965A1

公开(公告)日：2001-10-17

申请号：EP00900491.2

申请日：2000-01-07

Applicant: ADC Telecommunications, Inc.

Inventor： IBSEN, Per, Eld ,  ROSE, Bjarke ,  RASMUSSEN, Michael

IPC: G01J3/18 ,  G01J3/28 ,  G01J3/02

CPC classification number: G01J3/00 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/0278 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/2803

Abstract: A method and apparatus for measuring spectral information of light from at least one object (15); said apparatus comprising at least one light detecting means (34); and at least one transparent body (31) having a front side (F) including: an entrance surface (311) having positioned in or near thereof an entrance aperture means (30), and at least one reflecting surface (312); and said transparent body further having a back side (B) including: at least one reflecting surface (313) for reflecting light received from said entrance aperture means, and an exit surface (314); said detecting means being positioned in or near said exit surface; said first reflecting surface, said second reflecting surface, or both, having at least one diffractive optical element (32) and/or at least one focusing means (33). Such apparatus comprising more spectral channels, and such apparatus comprising distance sensing means.