发明名称 |
Wavelength division element and optical module |
摘要 |
A wavelength division element includes a first filter and a second filter. The first filter has incident angle-to-transmission wavelength characteristics and separates multiplexed lights in a plurality of wavelength bands into first lights that are in a first wavelength band and first reflected lights. The first filter allows the first lights to pass through in a first direction and reflects the first reflected lights in a second direction. The second filter is located in the second direction and separates the first reflected lights into second lights that are in a second wavelength band and second reflected lights. The second filter allows the second lights to pass through in a third direction and reflects the second reflected lights in a fourth direction.
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申请公布号 |
US7215885(B2) |
申请公布日期 |
2007.05.08 |
申请号 |
US20040898336 |
申请日期 |
2004.07.26 |
申请人 |
EPSON TOYOCOM CORPORATION |
发明人 |
YAMANE TAKASHI;KISHIDA TOSHIYA;MONMA SATOSHI;NAKASENDOU KAZUYUKI;FURUSATO DAIKI |
分类号 |
G02B6/42;H04J14/02;G02B5/26;G02B5/28;G02B6/293;G02B6/34;G02B27/10;G02B27/14;H01S3/00 |
主分类号 |
G02B6/42 |
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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