聚焦玻璃 punt glass 又称调焦板。供单镜反相用的，根据使用镜头的亮度或摄影目的，有可以替换产品种的机种。通常使用的有，毛面的中心部位呈分像式、微棱镜式。
本文将计算全息图通过紧聚焦飞秒激光脉冲诱导的微爆机制直接记录在玻璃内部，从而得到永久性的计算全息图。
In this thesis, the CGH was recorded directly inside silica glass step by step controlled by PC using a tightly focused femtosecond laser pulses with the mechanism of micro-explosion.
制备了自聚焦透镜的基础玻璃，对其透过率进行了测试，并对由这种玻璃制成的梯度折射率(GRIN)棒的折射率分布进行了分析。
The test on its optical transmittance was conducted, and analysis of the refractive index profile of a gradient index (GRIN) rod made of the base glass was performed.
一种广泛使用的构型为Kretschmann构型，激光通过玻璃棱镜聚焦到金属膜上，然后检测反射的激光(图a)。
A widely used one is the Kretschmann configuration, in which light is focused onto the metal film through a glass prism and the reflection of the light is detected FIG.
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