公开(公告)号：US09563041B2

公开(公告)日：2017-02-07

申请号：US14488777

申请日：2014-09-17

Applicant: Tamron Co., Ltd.

Inventor： Koji Kawaguchi ,  Yuko Watanabe ,  Shingo Fuse ,  Xiang Yu

IPC: G02B13/14 ,  G02B13/04 ,  G02B9/10

CPC classification number: G02B13/14 ,  G02B9/10 ,  G02B13/04

Abstract: An object of the present invention is to provide an optical system for an infrared ray which can provide a bright image, and can be applied to fixed focal length lenses among wide-angle to medium-telephoto. To achieve the object, the optical system for an infrared ray is constituted by a first lens having negative refractive power and a second lens having positive refractive power, these are arranged sequentially from an object side, wherein both the first lens and the second lens are made of an infrared transmitting material that transmits a light beam in an infrared wavelength range of 3 micron-meters or more to 14 micron-meters or less, and at least one of the lenses is made of an infrared transmitting material excluding germanium.

Abstract translation: 本发明的目的是提供一种能够提供亮度图像的红外线光学系统，并且可以应用于广角到中等长焦的固定焦距透镜。 为了实现该目的，用于红外线的光学系统由具有负折光力的第一透镜和具有正折光力的第二透镜构成，它们从物体侧依次布置，其中第一透镜和第二透镜都是 由红外线透射材料制成，透射光束在3微米以上至14微米以下的红外波长范围内，透镜中的至少一个由不含锗的红外线透射材料构成。

公开(公告)号：US20150085353A1

公开(公告)日：2015-03-26

申请号：US14488777

申请日：2014-09-17

Applicant: Tamron Co., Ltd.

Inventor： Koji Kawaguchi ,  Yuko Watanabe ,  Shingo Fuse ,  Xiang Yu

IPC: G02B13/14 ,  G02B9/10

CPC classification number: G02B13/14 ,  G02B9/10 ,  G02B13/04

Abstract: An object of the present invention is to provide an optical system for an infrared ray which can provide a bright image, and can be applied to fixed focal length lenses among wide-angle to medium-telephoto. To achieve the object, the optical system for an infrared ray is constituted by a first lens having negative refractive power and a second lens having positive refractive power, these are arranged sequentially from an object side, wherein both the first lens and the second lens are made of an infrared transmitting material that transmits a light beam in an infrared wavelength range of 3 micron-meters or more to 14 micron-meters or less, and at least one of the lenses is made of an infrared transmitting material excluding germanium.

Abstract translation: 本发明的目的是提供一种能够提供亮度图像的红外线光学系统，并且可以应用于广角到中等长焦的固定焦距透镜。 为了实现该目的，用于红外线的光学系统由具有负折光力的第一透镜和具有正折光力的第二透镜构成，它们从物体侧依次布置，其中第一透镜和第二透镜都是 由红外线透射材料制成，透射光束在3微米以上至14微米以下的红外波长范围内，透镜中的至少一个由不含锗的红外线透射材料构成。