Diffractive optics opens unique possibilities to affect only one wavelength. In multi-wavelength light beams the dual wavelength beam combiners are diffractive optical elements used to combine two incident beams with different wavelengths into the same focal point. In order to gain a super imposed spot on a required plane one just have to place a transparent diffractive optical element in the path of the laser beam towards the spot. No doublets are used anymore, only one hybrid diffractive element with microrelief on the plane side (dual wavelength product). The durability of diffractive beam combiner is far better then two lens system.
此系列的雙波長聚焦透鏡用作將兩種不同波長的光束聚焦到同一焦點上，例如將HeNe激光器的光束（633nm）和CO2激光器光束（10.6um）聚焦到同一焦點。與膠合透鏡相比較，具有單鏡片實現雙波長聚焦的功能，因而能承受更高的激光功率，可靠性及穩定性更高。常用在醫療系統或工業激光系統中。| Features:
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