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N-BK7, UV Fused Silica Biconvex Lenses

  • Double-convex shape recommend for finite conjugate ratios between 1:5 and 5:1
  • A large collection of stocks with focal lengths up to 1000nm
  • Made from N-BK7 (excellent  transmission from visible to the NIR region) and UV Fused Silica (superior transmission from UV to NIR)
  • Standardized focal lengths and diameters convenient for OEM 
  • Various coating options: uncoated, 350-650nm/650-1050nm/1050-1580nm BBAR, or custom
  • Applications: lasers, microscopes, projectors. cameras and other imaging instruments
Inquire for custom product  
Code Material Diameter CT ET Focal length Coating Unit Price Delivery Cart
1107-045 UV Fused Silica 5.0mm 1.5mm 2.2mm 10mm Uncoated Inquire Inquire
1107-001 N-BK7 6.0mm 1.5mm 2.4mm 10mm Uncoated Inquire 1 Week
1107-001A N-BK7 6.0mm 1.5mm 2.4mm 10mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-001B N-BK7 6.0mm 1.5mm 2.4mm 10mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-001C N-BK7 6.0mm 1.5mm 2.4mm 10mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-046 UV Fused Silica 6.0mm 1.5mm 2.6mm 10mm Uncoated Inquire Inquire
1107-002 N-BK7 6.0mm 1.5mm 2.3mm 12mm Uncoated Inquire 1 Week
1107-002A N-BK7 6.0mm 1.5mm 2.3mm 12mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-002B N-BK7 6.0mm 1.5mm 2.3mm 12mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-002C N-BK7 6.0mm 1.5mm 2.3mm 12mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-003 N-BK7 6.0mm 1.5mm 2.1mm 15mm Uncoated Inquire 1 Week
1107-003A N-BK7 6.0mm 1.5mm 2.1mm 15mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-003B N-BK7 6.0mm 1.5mm 2.1mm 15mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-003C N-BK7 6.0mm 1.5mm 2.1mm 15mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-047 UV Fused Silica 6.0mm 1.5mm 2.2mm 15mm Uncoated Inquire Inquire
1107-048 UV Fused Silica 6.0mm 1.5mm 2.0mm 20mm Uncoated Inquire Inquire
1107-004 N-BK7 6.0mm 1.5mm 1.8mm 30mm Uncoated Inquire 1 Week
1107-004A N-BK7 6.0mm 1.5mm 1.8mm 30mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-004B N-BK7 6.0mm 1.5mm 1.8mm 30mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-004C N-BK7 6.0mm 1.5mm 1.8mm 30mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-049 UV Fused Silica 6.0mm 1.5mm 1.8mm 30mm Uncoated Inquire Inquire
1107-005 N-BK7 9.0mm 1.8mm 3.6mm 12mm Uncoated Inquire 1 Week
1107-005A N-BK7 9.0mm 1.8mm 3.6mm 12mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-005B N-BK7 9.0mm 1.8mm 3.6mm 12mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-005C N-BK7 9.0mm 1.8mm 3.6mm 12mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-006 N-BK7 9.0mm 1.8mm 2.8mm 20mm Uncoated Inquire 1 Week
1107-006A N-BK7 9.0mm 1.8mm 2.8mm 20mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-006B N-BK7 9.0mm 1.8mm 2.8mm 20mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-006C N-BK7 9.0mm 1.8mm 2.8mm 20mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-007 N-BK7 12.7mm 1.8mm 4.7mm 15mm Uncoated Inquire 1 Week
1107-007A N-BK7 12.7mm 1.8mm 4.7mm 15mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-007B N-BK7 12.7mm 1.8mm 4.7mm 15mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-007C N-BK7 12.7mm 1.8mm 4.7mm 15mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-008 N-BK7 12.7mm 1.8mm 3.9mm 20mm Uncoated Inquire 1 Week
1107-008A N-BK7 12.7mm 1.8mm 3.9mm 20mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-008B N-BK7 12.7mm 1.8mm 3.9mm 20mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-008C N-BK7 12.7mm 1.8mm 3.9mm 20mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-050 UV Fused Silica 12.7mm 1.8mm 4.2mm 20mm Uncoated Inquire Inquire
1107-009 N-BK7 12.7mm 1.8mm 3.4mm 25mm Uncoated Inquire 1 Week
1107-009A N-BK7 12.7mm 1.8mm 3.4mm 25mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-009B N-BK7 12.7mm 1.8mm 3.4mm 25mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-009C N-BK7 12.7mm 1.8mm 3.4mm 25mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-010 N-BK7 12.7mm 1.8mm 3.1mm 30mm Uncoated Inquire 1 Week
1107-010A N-BK7 12.7mm 1.8mm 3.1mm 30mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-010B N-BK7 12.7mm 1.8mm 3.1mm 30mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-010C N-BK7 12.7mm 1.8mm 3.1mm 30mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-051 UV Fused Silica 12.7mm 1.8mm 3.3mm 30mm Uncoated Inquire Inquire
1107-011 N-BK7 12.7mm 1.8mm 2.8mm 40mm Uncoated Inquire 1 Week
1107-011A N-BK7 12.7mm 1.8mm 2.8mm 40mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-011B N-BK7 12.7mm 1.8mm 2.8mm 40mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-011C N-BK7 12.7mm 1.8mm 2.8mm 40mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-052 UV Fused Silica 12.7mm 1.8mm 2.9mm 40mm Uncoated Inquire Inquire
1107-012 N-BK7 12.7mm 1.8mm 2.6mm 50mm Uncoated Inquire 1 Week
1107-012A N-BK7 12.7mm 1.8mm 2.6mm 50mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-012B N-BK7 12.7mm 1.8mm 2.6mm 50mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-012C N-BK7 12.7mm 1.8mm 2.6mm 50mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-053 UV Fused Silica 12.7mm 1.8mm 2.7mm 50mm Uncoated Inquire Inquire
1107-054 UV Fused Silica 12.7mm 1.8mm 2.4mm 75mm Uncoated Inquire Inquire
1107-013 N-BK7 12.7mm 1.8mm 2.2mm 100mm Uncoated Inquire 1 Week
1107-013A N-BK7 12.7mm 1.8mm 2.2mm 100mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-013B N-BK7 12.7mm 1.8mm 2.2mm 100mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-013C N-BK7 12.7mm 1.8mm 2.2mm 100mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-055 UV Fused Silica 12.7mm 1.8mm 2.2mm 100mm Uncoated Inquire Inquire
1107-014 N-BK7 25.4mm 1.9mm 9.0mm 25.4mm Uncoated Inquire 1 Week
1107-014A N-BK7 25.4mm 1.9mm 9.0mm 25.4mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-014B N-BK7 25.4mm 1.9mm 9.0mm 25.4mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-014C N-BK7 25.4mm 1.9mm 9.0mm 25.4mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-015 N-BK7 25.4mm 2.0mm 7.7mm 30mm Uncoated Inquire 1 Week
1107-015A N-BK7 25.4mm 2.0mm 7.7mm 30mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-015B N-BK7 25.4mm 2.0mm 7.7mm 30mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-015C N-BK7 25.4mm 2.0mm 7.7mm 30mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-016 N-BK7 25.4mm 2.0mm 6.8mm 35mm Uncoated Inquire 1 Week
1107-016A N-BK7 25.4mm 2.0mm 6.8mm 35mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-016B N-BK7 25.4mm 2.0mm 6.8mm 35mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-016C N-BK7 25.4mm 2.0mm 6.8mm 35mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-056 UV Fused Silica 25.4mm 2.0mm 7.4mm 35mm Uncoated Inquire Inquire
1107-017 N-BK7 25.4mm 2.0mm 6.1mm 40mm Uncoated Inquire 1 Week
1107-017A N-BK7 25.4mm 2.0mm 6.1mm 40mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-017B N-BK7 25.4mm 2.0mm 6.1mm 40mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-017C N-BK7 25.4mm 2.0mm 6.1mm 40mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-057 UV Fused Silica 25.4mm 2.0mm 6.7mm 40mm Uncoated Inquire Inquire
1107-018 N-BK7 25.4mm 2.0mm 5.2mm 50mm Uncoated Inquire 1 Week
1107-018A N-BK7 25.4mm 2.0mm 5.2mm 50mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-018B N-BK7 25.4mm 2.0mm 5.2mm 50mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-018C N-BK7 25.4mm 2.0mm 5.2mm 50mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-058 UV Fused Silica 25.4mm 2.0mm 5.7mm 50mm Uncoated Inquire Inquire
1107-019 N-BK7 25.4mm 2.0mm 4.7mm 60mm Uncoated Inquire 1 Week
1107-019A N-BK7 25.4mm 2.0mm 4.7mm 60mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-019B N-BK7 25.4mm 2.0mm 4.7mm 60mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-019C N-BK7 25.4mm 2.0mm 4.7mm 60mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-020 N-BK7 25.4mm 2.0mm 4.1mm 75mm Uncoated Inquire 1 Week
1107-020A N-BK7 25.4mm 2.0mm 4.1mm 75mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-020B N-BK7 25.4mm 2.0mm 4.1mm 75mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-020C N-BK7 25.4mm 2.0mm 4.1mm 75mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-059 UV Fused Silica 25.4mm 2.0mm 4.4mm 75mm Uncoated Inquire Inquire
1107-021 N-BK7 25.4mm 2.0mm 3.6mm 100mm Uncoated Inquire 1 Week
1107-021A N-BK7 25.4mm 2.0mm 3.6mm 100mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-021B N-BK7 25.4mm 2.0mm 3.6mm 100mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-021C N-BK7 25.4mm 2.0mm 3.6mm 100mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-060 UV Fused Silica 25.4mm 2.0mm 3.8mm 100mm Uncoated Inquire Inquire
1107-022 N-BK7 25.4mm 2.0mm 3.3mm 125mm Uncoated Inquire 1 Week
1107-022A N-BK7 25.4mm 2.0mm 3.3mm 125mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-022B N-BK7 25.4mm 2.0mm 3.3mm 125mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-022C N-BK7 25.4mm 2.0mm 3.3mm 125mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-061 UV Fused Silica 25.4mm 2.0mm 3.4mm 125mm Uncoated Inquire Inquire
1107-023 N-BK7 25.4mm 2.0mm 3.1mm 150mm Uncoated Inquire 1 Week
1107-023A N-BK7 25.4mm 2.0mm 3.1mm 150mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-023B N-BK7 25.4mm 2.0mm 3.1mm 150mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-023C N-BK7 25.4mm 2.0mm 3.1mm 150mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-062 UV Fused Silica 25.4mm 2.0mm 3.2mm 150mm Uncoated Inquire Inquire
1107-024 N-BK7 25.4mm 2.0mm 2.9mm 175mm Uncoated Inquire 1 Week
1107-024A N-BK7 25.4mm 2.0mm 2.9mm 175mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-024B N-BK7 25.4mm 2.0mm 2.9mm 175mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-024C N-BK7 25.4mm 2.0mm 2.9mm 175mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-063 UV Fused Silica 25.4mm 2.0mm 3.0mm 175mm Uncoated Inquire Inquire
1107-025 N-BK7 25.4mm 2.0mm 2.8mm 200mm Uncoated Inquire 1 Week
1107-025A N-BK7 25.4mm 2.0mm 2.8mm 200mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-025B N-BK7 25.4mm 2.0mm 2.8mm 200mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-025C N-BK7 25.4mm 2.0mm 2.8mm 200mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-064 UV Fused Silica 25.4mm 2.0mm 2.9mm 200mm Uncoated Inquire Inquire
1107-026 N-BK7 25.4mm 2.0mm 2.6mm 250mm Uncoated Inquire 1 Week
1107-026A N-BK7 25.4mm 2.0mm 2.6mm 250mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-026B N-BK7 25.4mm 2.0mm 2.6mm 250mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-026C N-BK7 25.4mm 2.0mm 2.6mm 250mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-065 UV Fused Silica 25.4mm 2.0mm 2.7mm 250mm Uncoated Inquire Inquire
1107-027 N-BK7 25.4mm 2.0mm 2.5mm 300mm Uncoated Inquire 1 Week
1107-027A N-BK7 25.4mm 2.0mm 2.5mm 300mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-027B N-BK7 25.4mm 2.0mm 2.5mm 300mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-027C N-BK7 25.4mm 2.0mm 2.5mm 300mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-066 UV Fused Silica 25.4mm 2.0mm 2.6mm 300mm Uncoated Inquire Inquire
1107-028 N-BK7 25.4mm 2.0mm 2.4mm 400mm Uncoated Inquire 1 Week
1107-028A N-BK7 25.4mm 2.0mm 2.4mm 400mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-028C N-BK7 25.4mm 2.0mm 2.4mm 400mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-028B N-BK7 25.4mm 2.0mm 2.4mm 400mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-029 N-BK7 25.4mm 2.0mm 2.3mm 500mm Uncoated Inquire 1 Week
1107-029A N-BK7 25.4mm 2.0mm 2.3mm 500mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-029B N-BK7 25.4mm 2.0mm 2.3mm 500mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-029C N-BK7 25.4mm 2.0mm 2.3mm 500mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-067 UV Fused Silica 25.4mm 2.0mm 2.4mm 500mm Uncoated Inquire Inquire
1107-030 N-BK7 25.4mm 2.0mm 2.2mm 750mm Uncoated Inquire 1 Week
1107-030A N-BK7 25.4mm 2.0mm 2.2mm 750mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-030B N-BK7 25.4mm 2.0mm 2.2mm 750mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-030C N-BK7 25.4mm 2.0mm 2.2mm 750mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-068 UV Fused Silica 25.4mm 2.0mm 2.2mm 750mm Uncoated Inquire Inquire
1107-031 N-BK7 25.4mm 2.0mm 2.2mm 1000mm Uncoated Inquire 1 Week
1107-031A N-BK7 25.4mm 2.0mm 2.2mm 1000mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-031B N-BK7 25.4mm 2.0mm 2.2mm 1000mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-031C N-BK7 25.4mm 2.0mm 2.2mm 1000mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-069 UV Fused Silica 25.4mm 2.0mm 2.2mm 1000mm Uncoated Inquire Inquire
1107-032 N-BK7 50.8mm 3.0mm 14.4mm 60mm Uncoated Inquire 1 Week
1107-032A N-BK7 50.8mm 3.0mm 14.4mm 60mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-032B N-BK7 50.8mm 3.0mm 14.4mm 60mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-032C N-BK7 50.8mm 3.0mm 14.4mm 60mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-070 UV Fused Silica 50.8mm 2.5mm 15.6mm 60mm Uncoated Inquire Inquire
1107-033 N-BK7 50.8mm 3.0mm 11.8mm 75mm Uncoated Inquire 1 Week
1107-033A N-BK7 50.8mm 3.0mm 11.8mm 75mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-033B N-BK7 50.8mm 3.0mm 11.8mm 75mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-033C N-BK7 50.8mm 3.0mm 11.8mm 75mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-071 UV Fused Silica 50.8mm 2.5mm 12.5mm 75mm Uncoated Inquire Inquire
1107-034 N-BK7 50.8mm 3.0mm 9.5mm 100mm Uncoated Inquire 1 Week
1107-034A N-BK7 50.8mm 3.0mm 9.5mm 100mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-034B N-BK7 50.8mm 3.0mm 9.5mm 100mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-034C N-BK7 50.8mm 3.0mm 9.5mm 100mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-072 UV Fused Silica 50.8mm 3.0mm 10.3mm 100mm Uncoated Inquire Inquire
1107-035 N-BK7 50.8mm 3.0mm 8.1mm 125mm Uncoated Inquire 1 Week
1107-035A N-BK7 50.8mm 3.0mm 8.1mm 125mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-035B N-BK7 50.8mm 3.0mm 8.1mm 125mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-035C N-BK7 50.8mm 3.0mm 8.1mm 125mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-036 N-BK7 50.8mm 3.0mm 7.2mm 150mm Uncoated Inquire 1 Week
1107-036A N-BK7 50.8mm 3.0mm 7.2mm 150mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-036B N-BK7 50.8mm 3.0mm 7.2mm 150mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-036C N-BK7 50.8mm 3.0mm 7.2mm 150mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-073 UV Fused Silica 50.8mm 3.0mm 7.8mm 150mm Uncoated Inquire Inquire
1107-037 N-BK7 50.8mm 3.0mm 6.6mm 175mm Uncoated Inquire 1 Week
1107-037A N-BK7 50.8mm 3.0mm 6.6mm 175mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-037B N-BK7 50.8mm 3.0mm 6.6mm 175mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-037C N-BK7 50.8mm 3.0mm 6.6mm 175mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-038 N-BK7 50.8mm 3.0mm 6.2mm 200mm Uncoated Inquire 1 Week
1107-038A N-BK7 50.8mm 3.0mm 6.2mm 200mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-038B N-BK7 50.8mm 3.0mm 6.2mm 200mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-038C N-BK7 50.8mm 3.0mm 6.2mm 200mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-074 UV Fused Silica 50.8mm 3.0mm 6.5mm 200mm Uncoated Inquire Inquire
1107-039 N-BK7 50.8mm 3.0mm 5.5mm 250mm Uncoated Inquire 1 Week
1107-039A N-BK7 50.8mm 3.0mm 5.5mm 250mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-039B N-BK7 50.8mm 3.0mm 5.5mm 250mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-039C N-BK7 50.8mm 3.0mm 5.5mm 250mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-075 UV Fused Silica 50.8mm 3.0mm 5.8mm 250mm Uncoated Inquire Inquire
1107-040 N-BK7 50.8mm 3.0mm 5.1mm 300mm Uncoated Inquire 1 Week
1107-040A N-BK7 50.8mm 3.0mm 5.1mm 300mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-040B N-BK7 50.8mm 3.0mm 5.1mm 300mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-040C N-BK7 50.8mm 3.0mm 5.1mm 300mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-076 UV Fused Silica 50.8mm 3.0mm 5.4mm 300mm Uncoated Inquire Inquire
1107-041 N-BK7 50.8mm 3.0mm 4.6mm 400mm Uncoated Inquire 1 Week
1107-041A N-BK7 50.8mm 3.0mm 4.6mm 400mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-041B N-BK7 50.8mm 3.0mm 4.6mm 400mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-041C N-BK7 50.8mm 3.0mm 4.6mm 400mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-042 N-BK7 50.8mm 3.0mm 4.3mm 500mm Uncoated Inquire 1 Week
1107-042A N-BK7 50.8mm 3.0mm 4.3mm 500mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-042B N-BK7 50.8mm 3.0mm 4.3mm 500mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-042C N-BK7 50.8mm 3.0mm 4.3mm 500mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-077 UV Fused Silica 50.8mm 3.0mm 4.4mm 500mm Uncoated Inquire Inquire
1107-043 N-BK7 50.8mm 3.0mm 3.8mm 750mm Uncoated Inquire 1 Week
1107-043A N-BK7 50.8mm 3.0mm 3.8mm 750mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-043B N-BK7 50.8mm 3.0mm 3.8mm 750mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-043C N-BK7 50.8mm 3.0mm 3.8mm 750mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-078 UV Fused Silica 50.8mm 3.0mm 3.9mm 750mm Uncoated Inquire Inquire
1107-044 N-BK7 50.8mm 3.0mm 3.6mm 1000mm Uncoated Inquire 1 Week
1107-044A N-BK7 50.8mm 3.0mm 3.6mm 1000mm 350-650nm AR Coating Inquire 1~2 Weeks
1107-044B N-BK7 50.8mm 3.0mm 3.6mm 1000mm 650-1050nm AR Coating Inquire 1~2 Weeks
1107-044C N-BK7 50.8mm 3.0mm 3.6mm 1000mm 1050-1580nm AR Coating Inquire 1~2 Weeks
1107-079 UV Fused Silica 50.8mm 3.0mm 3.7mm 1000mm Uncoated Inquire Inquire

A Biconvex Lens, also known as a Double Convex Lens, is an optical lens with two spherical sides that have the same curvature radii. The major uses of  Biconvex lenses include laser beam modulation, light focus, and imaging. Biconvex lenses have positive focal lengths and converge collimated light to a point. When the absolute finite conjugate ratio is equal to or near 1:1, biconvex lenses are advised. When the object distance and image distance are equivalent in absolute terms, biconvex lenses are the best option for conjugate ratios between 1:5 and 5:1. If not, plano-convex lenses are preferable since their asymmetric shapes help to reduce spherical aberrations. The focal lengths of the biconvex lenses could be calculated using the formula: f= (R1*R2)/((n-1)*(R2-R1)).

N-BK7 or its equivalent known as H-K9L is a ROHS-compliant borosilicate crown glass with a high transmission rate in the spectral range from visible to near-infrared (350-2200nm) and is probably the most frequently-chosen optical glass to manufacture professional optical components. The most attractive advantage of N-BK7 is its high optical homogeneity, which means its refractive indexes will only vary within a small amplitude. Besides, the hardness, chemical, and aberration resistance of N-BK7 are also very remarkable, it contains low levels of inclusions and bubbles, therefore N-BK7 is excellent for making high-precision optical lenses.

UV Fused Silica, equivalently known as JGS1, is an optical glass material with incomparably superior transparency to the UV wavelengths, meanwhile also being transparent to visible and NIR radiations (transmission range 200-2200nm). In fact, UV Grade Fused Silica is one of the best ultraviolet-transmitting media. The thermal properties of UVFS are prominent, too, including high-temperature durability and low thermal expansion. Other benefits of UV Fused Silica lenses encompass few bubbles/striae, high homogeneity, and advantages of birefringent properties. Therefore UVFS lens is the primary option for building a stable optical system under harsh working conditions.

This page features Shalom EO‘s Stocked N-BK7 Biconvex Lenses and UV-Fused Silica Biconvex Lenses. Within our stock list, a wide range of focal lengths up to 1000mm is available. However, custom biconvex lenses made from BaF2, CaF2, MgF2, Ge, ZnSe, Sapphire, and other optical materials are also available upon your request. 

Regarding the N-BK7 Biconvex Lenses, the original transmission range of uncoated N-BK7 is 350-2200mm, with an absorption dip positioned at around 2.8 microns. To further enhance the transmission of the N-BK7 double convex lens, Broadband Anti-reflection (BBAR) coatings could be furnished to accommodate the requirements for multi-wavelength and tunable lasers. Besides the uncoated versions, we also provide standard N-BK7 double convex lenses with three kinds of broadband AR coatings: 350-650nm, 650-1050nm, and 1050-1580nm to increase the transmission and elevate the efficiencies of utilization. Regarding the UV Fused Silica Biconvex Lenses, the UV Fused Silica double convex lenses in our stock list are uncoated, To further enhance the transmission of the UV Fused Silica double convex lenses, designed coatings could be tailored according to customers’ requirements. In addition to the conventional BBAR coatings mentioned above, Shalom EO also provides V coatings consisting of multiple high-performance layers to obtain minimum reflectance over a contracted spectral range and low-cost MgF2 coatings.

Specifications:

Lens FormBiconvex LensMaterialN-BK7 and UV Fused Silica
Diameters(mm)

N-BK7: Standard 6.0-50.8mm, or Custom

UV Fused Silica 5.0-50.8mm, or Custom

Working Wavelength Range

N-BK7:350-2200nm

UV Fused Silica: 200-2200nm

Coating

N-BK7: Uncoated/BBAR 350-650nm, 650-1050nm, 1050-1580nm, or Custom

UV Fused Silica: Uncoated/Custom Coatings

Surface Quality (S/D)

40/20
Irregularity@632.8nmλ/4Centering Error≤2 arc min
Clear Aperture>90%Protective Chamfer<0.2mmx45°
Dia12.7mm EFL50mm N-BK7 Biconvex Lenses 650-1050nm AR Coating

Dia12.7mm EFL50mm N-BK7 Biconvex Lenses 650-1050nm AR Coating

Dia25.4mm EFL175mm N-BK7 Biconvex Lenses 350-650nm AR Coating

Dia25.4mm EFL175mm N-BK7 Biconvex Lenses 350-650nm AR Coating

Dia25.4mm EFL400mm N-BK7 Biconvex Lenses 1050-1580nm AR Coating

Dia25.4mm EFL400mm N-BK7 Biconvex Lenses 1050-1580nm AR Coating