发明名称 |
Fibre-type light wavelength conversion device |
摘要 |
A fibre-type light wavelength conversion device for changing the wavelength of an incident beam and emerging it as a beam having a predetermined wavelength includines a core and a cladding layer around the core. The device is characterized by the provision of a transparent conical layer provided around the cladding layer, the conical layer having a diameter increasing at a predetermined inclination from an end of incidence toward an end of emergence. According to a further feature the conical layer has a refractive index substantially the same as the cladding layer, and the inclination of the conical layer is set to be a half an angle of emergence of a beam emerging from the cladding layer with respect to a wave guiding direction.
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申请公布号 |
US4874221(A) |
申请公布日期 |
1989.10.17 |
申请号 |
US19890345162 |
申请日期 |
1989.05.01 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
OHSAWA, SEIICHI |
分类号 |
G02F1/37;G02B6/34;G02F1/383 |
主分类号 |
G02F1/37 |
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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