Spec

• Outer diameter (φmm): 8
• Length (mm): 10
• Focus distance (mm): 5.86
• Material: BK-7
• Design wavelength: 587.6nm
• Refractive index: 1.51680/nd
• Polishing: End face/Suri mesh, Peripheral/optical polishing
• Tolerance range
• Outer diameter: φ+0/-0.1mm
• Center thickness: ±0.2mm
• Focal length: ±2％
• Surface quality: MIL60-40
• *Please be careful for the end face that has 2 types of optical polishing and Suri mesh (peripheral is all optical polished).
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