公开(公告)号：US08309905B2

公开(公告)日：2012-11-13

申请号：US12548047

申请日：2009-08-26

Applicant: Jean-Francois Blanc ,  Stephane Garin

Inventor： Jean-Francois Blanc ,  Stephane Garin

IPC: G01J3/50

CPC classification number: G02B23/00 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0213 ,  G01J3/0262 ,  G01J3/2823 ,  G01J3/36 ,  G02B5/285 ,  H01L27/14621

Abstract: The multispectral filter for an image detection device comprises a prismatic plate (85) comprising a first internal face (86) and a second external face (87), the first and the second faces (86, 87) being inclined with respect to one another by an angle β, and comprises at least two different spectral bands (91, 92, 93, 94) deposited either on the first or the second face (86, 87) of the prismatic plate (85), the various spectral bands (91, 92, 93, 94) being spaced a predetermined distance (D) apart.Application to multispectral imagers, in particular to Off Axis imagers.This filter allows the suppression of the ghost images (or spurious echoes) generated at the focal plane of a multispectral imager.

Abstract translation: 用于图像检测装置的多光谱滤光器包括棱镜板（85），其包括第一内表面（86）和第二外表面（87），第一和第二面（86,87）相对于彼此倾斜 并且包括沉积在棱镜板（85）的第一面或第二面（86,87）上的至少两个不同光谱带（91,92,93,94），各种光谱带（ 91,92,93,94）间隔开预定距离（D）。 应用于多光谱成像仪，特别是Off Axis成像仪。 该滤光器允许抑制在多光谱成像器的焦平面处产生的重影图像（或杂散回波）。