| 摘要 |
PROBLEM TO BE SOLVED: To provide a layered optical element with favorable optical characteristics, less transmission loss and improved productivity, and to provide a method for manufacturing the element. SOLUTION: The layered optical element comprises a plurality of laminated optical plates made of quartz or glass, wherein a silicon oxide film (SiO<SB>2</SB>film) is deposited on the joining face of the glass plate and the optical plates are directly joined by interatomic bonds. The method for manufacturing the layered optical element comprises laminating a plurality of optical wafers made of quartz or glass wafers to form a layered optical wafer, then cutting and dividing the optical wafer into individual layered optical elements, wherein a silicon oxide film (SiO<SB>2</SB>film) is deposited on the joining faces of the glass wafers to obtain optical wafers and these optical wafers are directly joined by interatomic bonds. COPYRIGHT: (C)2007,JPO&INPIT
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