公开(公告)号：EP0145071A3

公开(公告)日：1988-08-03

申请号：EP84201724

申请日：1984-11-28

申请人： PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED ,  N.V. Philips' Gloeilampenfabrieken

发明人： Ball, Patrick John Richard ,  Baker, Geoffrey ,  Renals, Martin

IPC分类号： H01L37/02 ,  G08B13/18

CPC分类号： H01L37/02 ,  G08B13/191 ,  H01L24/73 ,  H01L2224/48091 ,  H01L2924/01322 ,  H01L2924/12033 ,  H01L2924/00014 ,  H01L2924/00

摘要： A pyroelectric infra-red radiation detector which is particularly suited to automated assembly comprises a pyroelectric detector element (1) mounted in a housing (4) having a window (5) transparent to infra-red radiation. Electrically conductive leads (6,7,8), e.g. in a single-in-line configuration, extend through a base portion (9) of the housing for making external electrical connections to the detector. Lead (8) comprises an extended portion (8b,8c,8d) within the housing providing a cantilever support (8d) to which the detector element (1) is fastened. The leads (6,7,8) may all be formed from portions of a unitary lead frame. A second differentially connected pyroelectric detector element (2) may be fastened to another cantilever support (16b) formed by a portion of the same lead frame. The cantilever supports (8d,16b) preferably extend from an insulating block (11) which encapsulates an associated electrical component (18) and which also provides support for the detector elements.

公开(公告)号：EP0172594A3

公开(公告)日：1986-07-23

申请号：EP85201295

申请日：1985-08-09

申请人： PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED ,  N.V. Philips' Gloeilampenfabrieken

发明人： Rose, Michael Andrew ,  Renals, Martin

IPC分类号： G01J05/34 ,  G01J05/08

CPC分类号： G01J5/04 ,  G01J5/045 ,  G01J5/046 ,  G01J5/08 ,  G01J5/0806 ,  G01J5/0875 ,  G01J5/34 ,  Y10S250/01

摘要： An infra-red radiation detector comprises a pyroelectric detector element (1) in an hermetically sealed housing (9,20). The housing comprises a base (9) and cover (20) with an aperture (10). A Fresnel lens (18) for example made of polyethylene transmissive in the 8-14µm wavelength range is fastened over the aperture on the inside of the cover for condensing the radiation to be detected onto the detector element. In one example the Fresnel lens is held fast against a flange (17) surrounding the aperture for example by a push-fit ring (21) see Figure 1). Alternatively the Fresnel lens is glued to a silicon window (25) which in turn is fastened to the flange (17) over the aperture (10) (see Figure 2). The Fresnel lens thus forms an integral part of the detector housing avoiding the need for external mirrors or lenses.