Fully automated centering and bonding of lenses for high-quality objectives

Lisa Kempa, P. Langehanenberg, C. Wilde
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引用次数: 1

Abstract

Modern high-performance optical systems require new technologies for alignment and joining processes. With the established OptiCentric® Bonding 5D TRIOPTICS offers a technology that provides high-precision lens mounting based on adhesive bonding. With innovative alignment bonding in 5 dimensions, the lens surfaces are aligned to the tube with accuracies below 1 μm in x, y, z direction and below 2 arcsec in Θx and Θy direction. This fine-adjustment method doesn’t dependent on mechanical tolerances because the lens can move freely in the frame. By using high-resolution autocollimators as well as tactile and optical distance sensors the accuracy of each lens is checked after each step of machining. This procedure facilitates the stacking of several lenses into one tube without further costly alignment steps of sub-cells. This reduces the process steps and makes the multilens mounting into a tube more efficient. Furthermore, glue bonded lenses without sub-cells save space and weight due to waiver of set-screws and shims. Integrated into the production line this technology allows a greater degree of accuracy of optical systems and new design opportunities for more compact and higher-quality lenses. The highly flexible OptiCentric® Bonding 5D can be quickly converted to other types of lenses. This technology is also suitable for clean room applications.
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全自动定心和粘接高品质物镜镜头
现代高性能光学系统需要新的对准和连接工艺技术。凭借已建立的OptiCentric®Bonding 5D TRIOPTICS提供了一种基于粘合剂粘合的高精度镜头安装技术。通过创新的5维对准键,透镜表面对准管,在x、y、z方向上精度低于1 μm,在Θx和Θy方向上精度低于2弧秒。这种微调方法不依赖于机械公差,因为镜头可以在框架内自由移动。利用高分辨率的自准直仪以及触觉和光学距离传感器,在加工的每一步后检查每个镜头的精度。这一过程便于将多个透镜堆叠到一个管中,而无需进一步进行昂贵的亚细胞校准步骤。这减少了工艺步骤,使多镜头安装到一个管更有效。此外,由于无需固定螺钉和垫片,没有亚单元的胶水粘合透镜节省了空间和重量。将该技术集成到生产线中,可以提高光学系统的精度,并为更紧凑、更高质量的镜头提供新的设计机会。高度灵活的OptiCentric®Bonding 5D可以快速转换为其他类型的镜头。该技术也适用于洁净室应用。
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