发明名称 |
METHOD OF AND APPARATUS FOR IMAGING SURFACE OF OBJECT AT HIGH TEMPERATURE |
摘要 |
A method of imaging the surface of an object at high temperature includes the steps of: irradiating the surface of a high-temperature object with two different kinds of pulses of monochromatic light of a fundamental wave and a harmonic thereof; passing the reflected light from the surface of the object through both an interference filter which allows only the two different kinds of monochromatic light to pass and a high-speed optical switch thereby to remove any background light component; drawing out only the reflected light of the pulses and leading the same to an image generating mechanism where it is converted into an image; and controlling the voltage applied to the high-speed optical switch thereby to adjust the mixing ratio between two wavelengths. Also disclosed is an apparatus for imaging the surface of an object at high temperature which includes: a light pulse generator provided such as to be opposed to high-temperature object; and an interference filter, a half-mirror, a high-speed optical switch and an image generating mechanism which are successively disposed on the optical axis of the reflected light from the object. |
申请公布号 |
DE3478503(D1) |
申请公布日期 |
1989.07.06 |
申请号 |
DE19843478503 |
申请日期 |
1984.09.20 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
OHNO, JIRO C/O DAIICHIGIJUTSUKENKYUSHO;YASHIRO, HIROKATSU DAIICHIGIJUTSUKENKYUSHO |
分类号 |
C21B7/24;B21C51/00;G01N21/21;G01N21/31;G03B15/00;(IPC1-7):G01N21/31;G02B27/00;G02F1/03;H04N5/30 |
主分类号 |
C21B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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