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Deln optics makes a lot of Candela focusing lenses for Fiber and YAG lasers.
这些镜片的表面抛光质量和涂层非常出色，适用于 755nm 和 1064nm 或同时适用于 755nm 和 1064nm。
Inventory specifications are as follows:
Material
N-BK7
Dimension Tolerance
+0/-0.1mm
Thickness Tolerance
±0.1mm
Surface Quality
40-20 or better
Power(fringe@633nm)
3
Irregularity(fringe@633nm)
0.5
Centration
<3 arc minutes
Focal Length Tolerance
±2%
AR V Coating
755nm or 1064nm or Dual-V Coating@755nm & 1064nm
Stock No.
