GRIN 렌즈 제조 방법
    49.
    发明公开
    GRIN 렌즈 제조 방법 有权
    制造磨光镜的方法

    公开(公告)号:KR1020090041357A

    公开(公告)日:2009-04-28

    申请号:KR1020087005953

    申请日:2007-08-23

    Abstract: [PROBLEMS] To provide a method for manufacturing a GRIN lens by a sol-gel process, which can prevent foaming in wire drawing and further facilitate wire drawing operation to improve the yield. [MEANS FOR SOLVING PROBLEMS] A method for manufacturing a GRIN lens, comprising the steps of preparing a wet gel from an alcohol solution composed mainly of a silicon alkoxide, an alkoxide of a dopant, and an aluminum alkoxide, eluting a dopant and aluminum from the outer peripheral face of the wet gel by leaching to provide a refractive index distribution, drying the wet gel to prepare a dry gel, firing the dry gel to form a base material, and subjecting the base material to wire drawing. In the step of leaching, most of aluminum is eluted from the wet gel to increase the porosity of the dry gel, and, thus, cracking upon sintering and foaming upon wire drawing can be prevented.

    Abstract translation: [问题]提供通过溶胶 - 凝胶法制造GRIN透镜的方法,其可以防止拉丝中的起泡,并且进一步促进拉丝操作以提高产率。 解决问题的方法GRIN透镜的制造方法包括以下步骤:由主要由硅醇盐,掺杂剂的醇盐和烷氧化铝组成的醇溶液制备湿凝胶,从其中洗脱掺杂剂和铝 湿凝胶的外周面通过浸出以提供折射率分布,干燥湿凝胶以制备干凝胶,焙烧干凝胶以形成基材,并对基材进行拉丝。 在浸出步骤中,大多数铝从湿凝胶中洗脱出来,以增加干燥凝胶的孔隙率,因此可以防止在拉丝时烧结和起泡时的开裂。

    GRIN 렌즈 제조 방법 및 GRIN 렌즈
    50.
    发明公开
    GRIN 렌즈 제조 방법 및 GRIN 렌즈 有权
    制造磨砂镜片和磨砂镜片的方法

    公开(公告)号:KR1020090015014A

    公开(公告)日:2009-02-11

    申请号:KR1020087005504

    申请日:2007-11-29

    Abstract: [PROBLEMS] To provide a method for manufacturing a GRIN lens by a sol-gel process, which can prevent foaming in wire drawing and further facilitate wire drawing operation to improve the yield. [MEANS FOR SOLVING PROBLEMS] A method for manufacturing a GRIN lens, comprising the steps of preparing a wet gel from an alcohol solution composed mainly of a silicon alkoxide, an alkoxide of a dopant, and an aluminum alkoxide, eluting a dopant and aluminum from the outer peripheral face of the wet gel by leaching to provide a refractive index distribution, drying the wet gel to prepare a dry gel, firing the dry gel to form a base material, and subjecting the base material to wire drawing. In the step of leaching, most of aluminum is eluted from the wet gel to increase the porosity of the dry gel, and, thus, cracking upon sintering and foaming upon wire drawing can be prevented.

    Abstract translation: [问题]提供通过溶胶 - 凝胶法制造GRIN透镜的方法,其可以防止拉丝中的起泡,并且进一步促进拉丝操作以提高产率。 解决问题的方法GRIN透镜的制造方法包括以下步骤:由主要由硅醇盐,掺杂剂的醇盐和烷氧化铝组成的醇溶液制备湿凝胶,从其中洗脱掺杂剂和铝 湿凝胶的外周面通过浸出以提供折射率分布,干燥湿凝胶以制备干凝胶,焙烧干凝胶以形成基材,并对基材进行拉丝。 在浸出步骤中,大多数铝从湿凝胶中洗脱出来,以增加干燥凝胶的孔隙率,因此可以防止在拉丝时烧结和起泡时的开裂。

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