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    • 7. 发明专利
    • Zoom lens device
    • 变焦镜头设备
    • JP2013003336A
    • 2013-01-07
    • JP2011134098
    • 2011-06-16
    • Yamano Kogaku:Kk株式会社山野光学
    • YAMANO SHIRO
    • G02B7/02G02B7/08
    • G02B7/10G02B7/008G02B15/14G02B27/0068
    • PROBLEM TO BE SOLVED: To satisfactorily correct defocus of a lens system, resulting from an environmental temperature change, with a simple correction mechanism in a zoom lens device.SOLUTION: The zoom lens device 1 has, from a subject side, a focus system lens 2 and a variator system lens group 223, and also includes a temperature sensor 10. The focus system lens 2 includes a focusing lens 2B, and a temperature correction lens 2A for correcting a change in focusing position, caused by the temperature of the focus system lens 1. The temperature correction lens 2A is moved to a position on an optical axis, which is determined by a temperature detected by the temperature sensor 10, independently of the position of the focusing lens 2B and the position of the variator system lens 3 by a lens drive mechanism 11 for temperature correction.
    • 要解决的问题:通过变焦透镜装置中的简单校正机构,能够令人满意地校正由环境温度变化引起的透镜系统的散焦。 解决方案:变焦透镜装置1从被摄体侧具有聚焦系统透镜2和变倍系统透镜组223,并且还包括温度传感器10.聚焦系统透镜2包括聚焦透镜2B,以及 用于校正由聚焦系统透镜1的温度引起的聚焦位置变化的温度校正透镜2A。温度校正透镜2A移动到由温度传感器检测的温度确定的光轴上的位置 10,与通过用于温度校正的透镜驱动机构11的聚焦透镜2B的位置和变倍系统透镜3的位置无关。 版权所有(C)2013,JPO&INPIT
    • 9. 发明专利
    • Aperture stop
    • JP5418707B2
    • 2014-02-19
    • JP2013038543
    • 2013-02-28
    • 株式会社山野光学
    • 司朗 山野隆幸 佐藤
    • A61B1/04G03B9/02G03B11/00
    • PROBLEM TO BE SOLVED: To easily and vividly take an image of a subject formed by illumination light in its visible light band and an observation image formed by feeble fluorescent light in its infrared light band from an observation region of the subject.SOLUTION: An imaging device is designed to take both an observation image formed by feeble fluorescent light L2 emitted from an observation region of a subject S by irradiation of excitation light L1 and a subject image formed by illumination light L1, and includes an aperture stop 10. The aperture stop 10 has a plurality of diaphragm vane members with filter parts formed therein, and includes: filter regions constituted by the filter parts of the plurality of the diaphragm vane members; and an aperture region located between the filter regions. The filter region allows light in a wavelength range corresponding to the fluorescent light L2 to pass therethrough, and reduces or cuts off the light in a wavelength range corresponding to the illumination light L1. The aperture region allows light in the wavelength range corresponding to the fluorescent light L2 and light in the wavelength range corresponding to the illumination light L1 to pass therethrough. In the maximum region of an optical path in the mounting location of the aperture stop 10, the light in the wavelength range corresponding to the fluorescent light L2 is not stopped down, and the area of the aperture region can be varied.