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    • 1. 发明授权
    • Metal vapor discharge lamp
    • 金属蒸汽放电灯
    • US4629929A
    • 1986-12-16
    • US540430
    • 1983-09-26
    • Masato SaitoRyo SuzukiKeiji WatanabeMichihiro Tsuchihashi
    • Masato SaitoRyo SuzukiKeiji WatanabeMichihiro Tsuchihashi
    • H01J61/04H01J61/30
    • H01J61/045
    • A metal vapor discharge lamp having an outer tube having an inert gas filling the inner space and an arc tube disposed in the interior of this outer tube and having in a discharge space in the interior a pair of electrodes. The discharge space is filled with at least a rare gas and mercury. A lower light transmissive covering member covering at least the lower end part of the arc tube is positioned in the vicinity of the end part of the light emitting tube which is the lower end during lighting. This reduces the temperature reduction of the lower part of the arc tube due to convection of the gas within the outer tube, increasing the temperature of the coldest part of the arc tube, whereby the vapor pressure in the interior of the arc tube is raised to improve luminous efficiency.
    • PCT No.PCT / JP83 / 00034 Sec。 371日期1983年9月26日 102(e)1983年9月26日PCT提交1983年2月7日PCT公布。 公开号WO83 / 02851 日期:1983年8月18日。一种具有填充内部空间的惰性气体的外管和设置在该外管内部的电弧管的金属蒸气放电灯,在内部具有放电空间。 放电空间至少填充有稀有气体和汞。 覆盖电弧管的至少下端部的下部透光性覆盖部件位于作为照明期间的下端的发光管的端部附近。 这样可以减少由于外管内的气体的对流引起的电弧管的下部的温度下降,从而提高电弧管的最冷部分的温度,从而将电弧管内部的蒸气压升高到 提高发光效率。
    • 8. 发明授权
    • Near-infrared ray radiation illuminator and near-infrared ray image
pick-up device
    • 近红外线辐射照明器和近红外线摄像装置
    • US4837478A
    • 1989-06-06
    • US132664
    • 1987-12-10
    • Yoshinori AnzaiTakao SaikatsuMasato SaitoMichihiro Tsuchihashi
    • Yoshinori AnzaiTakao SaikatsuMasato SaitoMichihiro Tsuchihashi
    • G08B13/194H01J61/38
    • G08B13/194H01J61/38
    • The invention is concerned with an illuminator to radiate light rays in the near-infrared region, and a near-infrared ray image pick-up device which irradiates the near-infrared light radiated from this illuminator onto an object to be pictured, and captures light reflected from the object for image pick-up. By constructing the illuminator with an electric discharge lamp and a filter which removes the visible region and permit the near-infrared region to pass therethrough out of light rays radiated from this electric discharge lamp, there can be provided a near-infrared ray radiation illuminator having a high efficiency and low deterioration characteristic. And, at the same time, by constructing a near-infrared ray image pick-up device with this near-infrared ray radiation illuminator and an image pick-up device which captures reflected light of the near-infrared ray radiated from the illuminator to be irradiated onto the object for the image pick-up, the image pick-up can be done without notice of a human being, whereby, when the device is used as a crime-preventing monitoring device, the monitoring of an intruder can be done perfectly, and, when it is used as a visitor congnition device, there is no disagreeable feeling on the part of the visitor by his being dazzled by illuminating light or his knowledge of being pictured by the device.
    • 本发明涉及用于照射近红外区域的光线的照明装置,以及近红外线摄像装置,其将从该照明装置照射的近红外光照射到被拍摄物体上,并捕捉光 从物体反映出图像拾取。 通过利用放电灯构成照明器和从该放电灯射出的光线中除去可见区域并允许近红外区域通过的滤光器,可以提供近红外线辐射照明器,其具有 高效率和低劣化特性。 同时,通过用该近红外线照射装置构成近红外线摄像装置,拍摄从照明装置照射的近红外线的反射光的摄像装置为 照射到用于图像拾取物的物体上,可以在不注意人的情况下进行图像拾取,由此,当该装置用作防犯罪监视装置时,可以完美地完成对入侵者的监视 并且当它被用作访问者识别装置时,由于被照明灯或他的设备的图像的知识而使得访问者不感到眩目的感觉。