Passive athermalization of optics
    2.
    发明授权
    Passive athermalization of optics 失效
    光学被动绝热

    公开(公告)号:US5504628A

    公开(公告)日:1996-04-02

    申请号:US180631

    申请日:1994-01-13

    CPC分类号: G02B13/14

    摘要: A doublet lens is optically passively athermalized by choosing two lens materials that have approximately the same Abbe number and substantially different thermal coefficients of refractive index. The ratio of the powers of the lens elements is designed to provide the desired passive athermalization. A diffractive surface is used on one of the lens elements to correct for chromatic aberration. Because the Abbe numbers are approximately the same for the two lens materials, the chromatic correction does not significantly change with temperature. This allows the ratio of the powers of the lens elements to control the focal length of the doublet with temperature being independent of chromatic correction.

    摘要翻译: 通过选择具有大致相同的阿贝数和基本上不同的折射率热系数的两个透镜材料,将双透镜光学被动地被热绝热。 透镜元件的功率比设计为提供所需的被动非热化。 在一个透镜元件上使用衍射表面来校正色差。 因为两个透镜材料的阿贝数大致相同,所以色温校正并不随温度而显着变化。 这允许透镜元件的功率的比率来控制双峰的焦距,其温度与色彩校正无关。

    Method and apparatus for multiple field-angle optical alignment testing
    3.
    发明授权
    Method and apparatus for multiple field-angle optical alignment testing 有权
    多场角度光学对准测试的方法和装置

    公开(公告)号:US08422005B2

    公开(公告)日:2013-04-16

    申请号:US12836051

    申请日:2010-07-14

    IPC分类号: G01B9/00

    摘要: Various embodiments provide an optical alignment apparatus that includes a mirror structure having a plurality of mirrors, the mirror structure being configured for mounting a lens. The plurality of mirrors are arranged so as to redirect a collimated beam of radiation into the lens at different angles so as to measure one or more alignment parameter of the lens.

    摘要翻译: 各种实施例提供一种光学对准装置,其包括具有多个反射镜的反射镜结构,该镜结构被配置为安装透镜。 多个反射镜被布置成将准直的辐射束以不同的角度重定向到透镜中,以便测量透镜的一个或多个对准参数。

    Monolithic lens/reflector optical component
    4.
    发明授权
    Monolithic lens/reflector optical component 有权
    单片透镜/反射器光学元件

    公开(公告)号:US08254018B2

    公开(公告)日:2012-08-28

    申请号:US10423395

    申请日:2003-04-25

    IPC分类号: G02B5/08 G02B13/14

    CPC分类号: G02B13/14

    摘要: A monolithic body (31) has a compound optical surface that defines a centrally located lens element (31B) that is transmissive to light having wavelengths of interest, such as infrared radiation (IR), and a reflector (31B) disposed about the lens element that is reflective to the light. The monolithic body is comprised of a material selected for fabricating a refractive lens element. The compound optical surface has a centrally located portion defining the lens element surrounded by a generally curved surface region having a reflective coating that defines the reflector. The centrally located portion may be coated with an anti-reflection coating. The compound optical surface is preferably formed in one operation, such as one that uses a diamond point turning operation.

    摘要翻译: 单片体(31)具有复合光学表面,该复合光学表面限定对具有感兴趣波长的光(例如红外辐射(IR))透射的中心位置的透镜元件(31B),以及围绕透镜元件设置的反射器(31B) 这是反光的。 整体式主体由选择用于制造折射透镜元件的材料组成。 复合光学表面具有中心定位的部分,其限定由具有限定反射器的反射涂层的大致弯曲的表面区域包围的透镜元件。 中心位置的部分可以涂覆有抗反射涂层。 复合光学表面优选地在一个操作中形成,例如使用钻石点转动操作的操作。

    Optical system for a wide field of view staring infrared sensor having improved optical symmetry
    5.
    发明授权
    Optical system for a wide field of view staring infrared sensor having improved optical symmetry 有权
    用于宽视野的光学系统,凝视红外传感器具有改善的光学对称性

    公开(公告)号:US07002154B2

    公开(公告)日:2006-02-21

    申请号:US10423504

    申请日:2003-04-25

    IPC分类号: G01J5/02

    摘要: A wide-angle IR imaging system (1A) has an entrance aperture (40) for admitting IR from a scene and a dewar (4A) that contains a coldshield (3) that encloses a cooled IR detector (2) disposed at an image plane (2A). The dewar includes a dewar window (4), and an optical axis of the IR imaging system passes through the dewar window and the image plane. The IR imaging system further includes a plurality of uncooled optical elements (22, 24, 26, 28) disposed along the optical axis between the entrance aperture and the dewar window, and a plurality of generally annular reflector segments (18A, 18B) disposed around the optical axis between the dewar window and the entrance aperture. Each of the reflector segments has a reflective surface that faces the dewar window. An opening through an outermost reflector segment furthest from the dewar window defines an effective cooled aperture stop, or warm stop (20A) of the IR imaging system, and at least one of the optical elements (22) is disposed between the effective cooled aperture stop and another one of the reflector segments (18A) that is located nearer to the dewar window. In the preferred embodiment the at least one optical element, and the reflector segment that is located nearer to the dewar window, are comprised of a single monolithic body (31) that has a compound optical surface.

    摘要翻译: 广角红外成像系统(1A)具有用于从场景接收红外线的入口孔径(40)和包含冷却红外线检测器(2)的冷藏(3)的杜瓦瓶(4A) 图像平面(2A)。 杜瓦瓶包括杜瓦窗(4),IR成像系统的光轴穿过杜瓦窗和图像平面。 IR成像系统还包括沿入射孔和杜瓦瓶窗口之间的光轴布置的多个非冷却的光学元件(22,24,26,28)和多个大致环形的反射器段(18A,18B) 设置在杜瓦窗和入口孔之间的光轴周围。 每个反射器段具有面向杜瓦窗的反射表面。 通过距离杜瓦窗最远的最外侧的反射器区段的开口限定了IR成像系统的有效冷却的孔径光阑或暖止点(20A),并且至少一个光学元件(22)设置在有效冷却孔径 并且位于更靠近杜瓦瓶窗口的另一个反射器段(18A)。 在优选实施例中,位于更靠近杜瓦瓶窗口的至少一个光学元件和反射器段由具有复合光学表面的单个整体(31)组成。

    METHOD AND APPARATUS FOR MULTIPLE FIELD-ANGLE OPTICAL ALIGNMENT TESTING
    7.
    发明申请
    METHOD AND APPARATUS FOR MULTIPLE FIELD-ANGLE OPTICAL ALIGNMENT TESTING 有权
    多场视角光学对准测试的方法与装置

    公开(公告)号:US20120013895A1

    公开(公告)日:2012-01-19

    申请号:US12836051

    申请日:2010-07-14

    IPC分类号: G01B11/26

    摘要: Various embodiments provide an optical alignment apparatus that includes a mirror structure having a plurality of mirrors, the mirror structure being configured for mounting a lens. The plurality of mirrors are arranged so as to redirect a collimated beam of radiation into the lens at different angles so as to measure one or more alignment parameter of the lens.

    摘要翻译: 各种实施例提供一种光学对准装置,其包括具有多个反射镜的反射镜结构,该镜结构被配置为安装透镜。 多个反射镜被布置成将准直的辐射束以不同的角度重定向到透镜中,以便测量透镜的一个或多个对准参数。