LPK: Image Grade N-BK7 Plano-Concave Lenses

LPK: Image Grade N-BK7 Plano-Concave Lenses

LPK: Image Grade N-BK7 Plano-Concave Lenses

Standard, low aberration beam expanding lens for most routine applications; 415nm to 1064nm. Well-suited to a wide range of beam expansion and aberration-balancing tasks in the visible and near-infrared, these N-BK7 plano-concave lenses reduce aberrations when used at near-infinite conjugate ratio. They are available in a wide range of standard focal lengths and diameters, with optional VIS & NIR broadband or Nd:YAG AR coatings.
  • Product Code: LPK-C
  • Optical Material: N-BK7
  • Diameter Tolerance: +0/-0.10mm
  • Center Thickness Tolerance: ±0.2mm
  • Chamfer: 0.05 - 0.20mm at 45° nominal
  • Flat Annulus Width (?): 0.2mm for Ø ≤ 40mm, 0.4mm for
    Ø > 40mm (+0/-70%)
  • Centration: ≤ 3 arc minutes
  • Paraxial Focal Length: ƒ±2%
  • Surface Irregularity: < λ/2 p-v at 633nm per surface
    before coating
  • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
  • Clear Aperture (CA): Ø–2?
  • Design Wavelength: 546.1nm
  • Anti-reflection Coating: Wavelength user specified

Items 1-15 of 27

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  1. LPK-8.0-7.8-C (MOQ is 3 qty) $39.00 ea
    Inventory: In-Stock: 54 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    8 -15 7.8 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -15
    • f-Number: -1.9
    • Edge Thickness (mm): 3
    • Diameter (mm): 8
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 7.8

    Downloads

    There are no downloads available at this time.

  2. LPK-50.0-51.9-C (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 18 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -100 51.9 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -100
    • f-Number: -2
    • Edge Thickness (mm): 8.2
    • Diameter (mm): 50
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 51.9

    Downloads

    There are no downloads available at this time.

  3. LPK-50.0-38.9-C (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 1 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -75 38.9 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -75
    • f-Number: -1.5
    • Edge Thickness (mm): 11.8
    • Diameter (mm): 50
    • Center Thickness (mm): 3
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 38.9

    Downloads

    There are no downloads available at this time.

  4. LPK-50.0-259.4-C-415-700 (MOQ is 3 qty) $73.00 ea
    Inventory: In-Stock: 0 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -500 259.4 415-700
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -500
    • f-Number: -10
    • Edge Thickness (mm): 4.2
    • Diameter (mm): 50
    • Center Thickness (mm): 3
    • AR Coating Wavelength (nm): 415-700
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 259.4

    Downloads

    There are no downloads available at this time.

  5. LPK-50.0-259.4-C (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 0 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -500 259.4 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -500
    • f-Number: -10
    • Edge Thickness (mm): 4.2
    • Diameter (mm): 50
    • Center Thickness (mm): 3
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 259.4

    Downloads

    There are no downloads available at this time.

  6. LPK-50.0-103.7-C-633-1064 (MOQ is 3 qty) $73.00 ea
    Inventory: In-Stock: 0 QTY | 8-Weeks: 2 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -200 103.7 633-1064
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -200
    • f-Number: -4
    • Edge Thickness (mm): 5
    • Diameter (mm): 50
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): 633-1064
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 103.7

    Downloads

    There are no downloads available at this time.

  7. LPK-50.0-103.7-C (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 2 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    50 -200 103.7 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -200
    • f-Number: -4
    • Edge Thickness (mm): 5
    • Diameter (mm): 50
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 103.7

    Downloads

    There are no downloads available at this time.

  8. LPK-5.0-5.2-C-415-700 (MOQ is 3 qty) $50.00 ea
    Inventory: In-Stock: 0 QTY | 8-Weeks: 5 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    5 -10 5.2 415-700
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -10
    • f-Number: -2
    • Edge Thickness (mm): 2.5
    • Diameter (mm): 5
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): 415-700
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 5.2

    Downloads

    There are no downloads available at this time.

  9. LPK-5.0-5.2-C (MOQ is 3 qty) $39.00 ea
    Inventory: In-Stock: 5 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    5 -10 5.2 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -10
    • f-Number: -2
    • Edge Thickness (mm): 2.5
    • Diameter (mm): 5
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 5.2

    Downloads

    There are no downloads available at this time.

  10. LPK-30.0-25.9-C-633-1064 (MOQ is 3 qty) $66.00 ea
    Inventory: In-Stock: 0 QTY | 8-Weeks: 24 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    30 -50 25.9 633-1064
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -50
    • f-Number: -1.7
    • Edge Thickness (mm): 6.6
    • Diameter (mm): 30
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): 633-1064
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 25.9

    Downloads

    There are no downloads available at this time.

  11. LPK-30.0-25.9-C (MOQ is 3 qty) $50.00 ea
    Inventory: In-Stock: 24 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    30 -50 25.9 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -50
    • f-Number: -1.7
    • Edge Thickness (mm): 6.6
    • Diameter (mm): 30
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 25.9

    Downloads

    There are no downloads available at this time.

  12. LPK-25.0-38.9-C-1064 (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 0 QTY | 8-Weeks: 5 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    25 -75 38.9 1064
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -75
    • f-Number: -3
    • Edge Thickness (mm): 4
    • Diameter (mm): 25
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): 1064
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 38.9

    Downloads

    There are no downloads available at this time.

  13. LPK-25.0-38.9-C (MOQ is 3 qty) $50.00 ea
    Inventory: In-Stock: 5 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    25 -75 38.9 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -75
    • f-Number: -3
    • Edge Thickness (mm): 4
    • Diameter (mm): 25
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 38.9

    Downloads

    There are no downloads available at this time.

  14. LPK-25.0-259.4-C-633-1064 (MOQ is 3 qty) $62.00 ea
    Inventory: In-Stock: 0 QTY | 15-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    25 -500 259.4 633-1064
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -500
    • f-Number: -20
    • Edge Thickness (mm): 2.3
    • Diameter (mm): 25
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): 633-1064
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 259.4

    Downloads

    There are no downloads available at this time.

  15. LPK-25.0-259.4-C (MOQ is 3 qty) $50.00 ea
    Inventory: In-Stock: 0 QTY | 13-Weeks: 500 QTY
    Diameter (mm) Focal Length (mm) Radius of Curvature (mm) AR Coating Wavelength (nm)
    25 -500 259.4 Uncoated
    Specifications and Downloads

    Specifications

    • Item Description: Image Grade N-BK7 Plano-Concave Spherical Lenses
    • Surface Figure: <λ/2 p-v at 633nm on select substrates
    • Material: N-BK7 or equivalent
    • Type: Plano-Concave
    • Focal Length (mm): -500
    • f-Number: -20
    • Edge Thickness (mm): 2.3
    • Diameter (mm): 25
    • Center Thickness (mm): 2
    • AR Coating Wavelength (nm): Uncoated
    • Surface Quality: 60-40 scratch-dig per MIL-PRF-13830b
    • Radius of Curvature (mm): 259.4

    Downloads

    There are no downloads available at this time.

Items 1-15 of 27

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