公开(公告)号：US07427758B2

公开(公告)日：2008-09-23

申请号：US11273919

申请日：2005-11-14

Applicant: John Garman ,  Nahum Gat

Inventor： John Garman ,  Nahum Gat

IPC: G01J5/00

CPC classification number: G01J5/06 ,  G01J5/061 ,  G01J5/08 ,  G01J5/0831 ,  G01J5/084 ,  G01J5/0865 ,  H04N5/238 ,  H04N5/33

Abstract: A thermal infrared camera may be used under a wide variety of target-scene radiation conditions, with interchangeable or zoom lenses requiring matching or different size cold stops. A variable aperture assembly of a thermal infrared camera integrates a rigid open truss-like framework that's capped by an aperture ring and bottomed by a driving ring, and a radiation shield, located inside the framework, that contains an aperture ring at an upper side. A plurality of blades that collectively define an aperture positioned between the upper aperture rings. Opposite blade ends are coupled to respective ones of the two aperture rings, permitting pivotal movement in one ring and radial movement in the other ring, when the rings are rotated relative to one another, to change the size of the formed aperture. Both refractive and reflective infrared telescopes may be retro-fitted with variable aperture devices to enhance infrared imaging performance.

Abstract translation: 热红外摄像机可以在各种目标场景辐射条件下使用，具有可互换或变焦镜头，需要匹配或不同尺寸的冷停止。 热红外照相机的可变光圈组件集成了由开口环盖住并由驱动环所覆盖的刚性开放式桁架状框架，以及位于框架内部的包含上侧孔径环的辐射屏蔽。 多个叶片，共同限定位于上孔环之间的孔。 当两个环相对于彼此旋转时，相对的刀片端部联接到两个孔环中的相应的一个孔环上，允许一个环中的枢转运动和另一个环中的径向运动，以改变形成的孔的尺寸。 折射和反射红外望远镜可以与可变孔径装置相配合以增强红外成像性能。

公开(公告)号：US07157706B2

公开(公告)日：2007-01-02

申请号：US10250016

申请日：2003-05-28

Applicant: Nahum Gat ,  John Dwight Garman

Inventor： Nahum Gat ,  John Dwight Garman

IPC: G01J5/00

CPC classification number: G01J5/061 ,  G01J5/06 ,  G01J5/08 ,  G01J5/0831 ,  G01J5/084 ,  G01J5/0865 ,  G03B9/04 ,  G03B9/06 ,  H04N5/238 ,  H04N5/33

Abstract: A continuously variable diaphragm or swappable fixed aperture for use in thermal infrared cameras, which aperture or diaphragm can be cooled to cryogenic temperatures. The invention contemplates mounting aperture control means, if necessary, in a vacuum or extending the control mechanism through a vacuum in a thermally isolated manner to avoid radiation load on the photocell. The inventive method implements such a diaphragm and control system. The invention makes possible the object of using a single thermal infrared camera under a wide variety of target-scene radiation conditions that may be rapidly changing, with interchangeable or zoom camera lenses requiring matching or different size cold stops, and under other such dynamic situations.

Abstract translation: 用于热红外摄像机的可连续变化的隔膜或可插拔固定孔，该孔或隔膜可以冷却至低温。 本发明考虑如果需要，在真空中安装孔径控制装置，或者以热隔离方式通过真空延伸控制机构，以避免光电池上的辐射负载。 本发明的方法实现了这种隔膜和控制系统。 本发明使得在可能快速变化的各种目标场景辐射条件下使用单个热红外摄像机成为可能，具有需要匹配或不同尺寸的冷停止的可互换或变焦相机镜头，以及在其他这样的动态情况下。

公开(公告)号：US20060255275A1

公开(公告)日：2006-11-16

申请号：US11273919

申请日：2005-11-14

Applicant: John Garman ,  Nahum Gat

Inventor： John Garman ,  Nahum Gat

IPC: G01J5/00

CPC classification number: G01J5/06 ,  G01J5/061 ,  G01J5/08 ,  G01J5/0831 ,  G01J5/084 ,  G01J5/0865 ,  H04N5/238 ,  H04N5/33

Abstract: A thermal infrared camera may be used under a wide variety of target-scene radiation conditions, with interchangeable or zoom lenses requiring matching or different size cold stops. A variable aperture assembly of a thermal infrared camera integrates a rigid open truss-like framework that's capped by an aperture ring and bottomed by a driving ring, and a radiation shield, located inside the framework, that contains an aperture ring at an upper side. A plurality of blades that collectively define an aperture positioned between the upper aperture rings. Opposite blade ends are coupled to respective ones of the two aperture rings, permitting pivotal movement in one ring and radial movement in the other ring, when the rings are rotated relative to one another, to change the size of the formed aperture. Both refractive and reflective infrared telescopes may be retrofitted with variable aperture devices to enhance infrared imaging performance.

Abstract translation: 热红外摄像机可以在各种目标场景辐射条件下使用，具有可互换或变焦镜头，需要匹配或不同尺寸的冷停止。 热红外照相机的可变光圈组件集成了由开口环盖住并由驱动环所覆盖的刚性开放式桁架状框架，以及位于框架内部的包含上侧孔径环的辐射屏蔽。 多个叶片，共同限定位于上孔环之间的孔。 当两个环相对于彼此旋转时，相对的刀片端部联接到两个孔环中的相应的一个孔环上，允许一个环中的枢转运动和另一个环中的径向运动，以改变形成的孔的尺寸。 折射和反射红外望远镜可以用可变光圈装置进行改装，以增强红外成像性能。

公开(公告)号：US06183129B2

公开(公告)日：2001-02-06

申请号：US08751720

申请日：1996-11-18

Applicant: Satoshi Aoyama ,  Takashi Banno ,  Tatsuaki Kusatsugu ,  Eiji Kitagawa

Inventor： Satoshi Aoyama ,  Takashi Banno ,  Tatsuaki Kusatsugu ,  Eiji Kitagawa

IPC: G01K100

CPC classification number: G01J5/02 ,  G01J5/025 ,  G01J5/026 ,  G01J5/0265 ,  G01J5/028 ,  G01J5/08 ,  G01J5/0803 ,  G01J5/0806 ,  G01J5/0809 ,  G01J5/0834 ,  G01J5/084 ,  G01J5/0865 ,  G01J5/089 ,  G01J5/0896 ,  Y10S33/21

Abstract: A projector for use in a measuring device is provided with an emitter which emits a beam of visible light to a measurement object along a predetermined optical axis, a rotary optical member which is operable to change the propagation direction of the visible light beam with respect to the predetermined optical axis in accordance with rotation of the rotary optical member, and a driver which rotates the rotary optical member about a rotation axis. The projector accurately indicates a measurement area on a measurement object in simpler construction.