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公开(公告)号：US09615036B2
公开(公告)日：2017-04-04
申请号：US14208560
申请日：2014-03-13
Applicant: DRS RSTA, INC.
Inventor： Richard L. Southerland , Mark E. Durham , Patrick J. Cronkite
Abstract: The disclosure describes systems and apparatuses that include a focusable lens, as well as methods for focusing the optical lens. The focusable lens system includes a single element lens having a concave refractive surface characterized by a first radius of curvature and a convex refractive surface characterized by a second radius of curvature larger than the first radius of curvature. A detector element generates electrical signals representative of infrared rays refracted by the single element lens and incident on the detector element, and an aperture stop is disposed around an optical axis of the optical system and secured in a constant position relative to the detector element, the aperture stop configured to limit a cone angle of rays refracted by the single element lens. They system also includes image processing circuitry configured to generate digital pixilation data based on electrical signals generated by the detector element.
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公开(公告)号：US20140267764A1
公开(公告)日：2014-09-18
申请号：US14208560
申请日：2014-03-13
Applicant: DRS RSTA, INC.
Inventor： Richard L. Southerland , Mark E. Durham , Patrick J. Cronkite
Abstract: The disclosure describes systems and apparatuses that include a focusable lens, as well as methods for focusing the optical lens. The focusable lens system includes a single element lens having a concave refractive surface characterized by a first radius of curvature and a convex refractive surface characterized by a second radius of curvature larger than the first radius of curvature. A detector element generates electrical signals representative of infrared rays refracted by the single element lens and incident on the detector element, and an aperture stop is disposed around an optical axis of the optical system and secured in a constant position relative to the detector element, the aperture stop configured to limit a cone angle of rays refracted by the single element lens. They system also includes image processing circuitry configured to generate digital pixilation data based on electrical signals generated by the detector element.
Abstract translation: 本公开描述了包括可聚焦透镜的系统和设备以及用于聚焦光学透镜的方法。 可聚焦透镜系统包括具有以第一曲率半径为特征的凹折射表面的单元件透镜，和具有大于第一曲率半径的第二曲率半径的凸折射面。 检测器元件产生代表由单个元件透镜折射并入射到检测器元件上的红外线的电信号，并且孔径光阑围绕光学系统的光轴设置并固定在相对于检测器元件的恒定位置， 孔径光阑被配置为限制由单个元件透镜折射的光线的锥角。 它们还包括被配置为基于由检测器元件产生的电信号产生数字图像数据的图像处理电路。
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公开(公告)号：US09176298B1
公开(公告)日：2015-11-03
申请号：US14050289
申请日：2013-10-09
Applicant: DRS RSTA, Inc.
Inventor： Eric J. Gustafson , Jeff R. Emmett , Rachel L. Cooper , Samuel E. Ivey , Rohan G. Rodney , Brian R. Pekarek , Patrick J. Cronkite , Mark E. Durham
CPC classification number: G02B7/008 , G02B7/026 , G02B7/028 , H04N5/2254
Abstract: Embodiments of the invention are directed to a springless athermal lens assembly. In one embodiment, a spacer of a springless athermal lens assembly may compensate for defocus of the camera system due to thermal expansion of the lens assembly through micro wedge mechanisms coupling the spacer to an inner and outer barrel. The inner barrel comprises a lens cell assembly and a body having a micro wedge slot. The outer barrel comprises a body having a micro wedge slot. The spacer comprises an inner barrel micro wedge and an outer barrel micro wedge. The spacer is configured to be physically coupled to the inner barrel through engagement of the inner barrel micro wedge and the inner barrel micro wedge slot. Further, the spacer is configured to be physically coupled to the outer barrel through the engagement of the outer barrel micro wedge and the outer barrel micro wedge slot.
Abstract translation: 本发明的实施例涉及无弹簧无热透镜组件。 在一个实施例中，无弹簧无热透镜组件的间隔件可以由于透镜组件通过将间隔件联接到内筒和外筒的微楔形机构的热膨胀而补偿相机系统的散焦。 内筒包括透镜单元组件和具有微楔槽的主体。 外筒包括具有微楔槽的主体。 间隔件包括内筒微楔和外筒微楔。 间隔件构造成通过内筒微型楔和内筒微型楔槽的接合物理耦合到内筒。 此外，间隔件构造成通过外筒微型楔和外筒微型楔槽的接合物理联接到外筒。
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