| 摘要 |
In a system for parallel alignment of the axes of a thermal image apparatus, the IR beam path and the visual beam path extend along the same optical elements. A luminous point/four-quadrant sensor unit which in itself is adjusted with precise and stable axes, is assigned to the IR radiation and visual radiation in front of the display (LCD); and an imaging arm which can be swivelled into the IR beam path or is stationary and has a ridge mirror and a plane mirror, or only a beam splitter, is arranged in front of the viewing lens system.
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