留言
Custom and volume optical manufacturing with the expertise to guide you:
The sine of the vertex angle of the largest cone of meridional rays that can enter or exit an optical system. In other words, it governs the amount of light entering or exiting a system. It is inversely related to the f/#.
或查看各区域电话
报价工具
只需输入商品编号
Copyright 2023, 爱特蒙特光学(深圳)有限公司。— 广东省深圳市龙华工业东路利金城科技工业园3栋5楼 518109 - 粤ICP备2021068591号