TECHSPEC® Uncoated Plano-Concave (PCV) Lenses

Plano-Concave (PCV) lenses have one flat and one inward curved surface. PCV lenses have a negative focal length and are used for image reduction or to spread light.

These lenses are available with a variety of Anti-Reflection coating options: MgF2, VIS 0°, VIS-NIR, NIR I and NIR II.

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Description Stock No. Price In Stock  
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Plano-Concave Lens 25.0mm Dia. x -25 FL, Uncoated
NT45-030 $25.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 24.00
Effective Focal Length EFL (mm) -25.00
Back Focal Length BFL (mm) -26.96
Focal Length Tolerance (%) ±1
Radius R1 (mm) -19.62
Edge Thickness ET (mm) 7.41
Center Thickness CT (mm) 3.50
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 40-20
Bevel Max = 0.25mm x 45°
Substrate N-SF11
Coating Uncoated
RoHS Compliant
Plano-Concave Lens 25.0mm Dia. x -35 FL, Uncoated
NT48-680 $25.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 24.00
Effective Focal Length EFL (mm) -35.00
Back Focal Length BFL (mm) -36.96
Focal Length Tolerance (%) ±1
Radius R1 (mm) -27.47
Edge Thickness ET (mm) 6.36
Center Thickness CT (mm) 3.50
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 40-20
Bevel Max = 0.25mm x 45°
Substrate N-SF11
Coating Uncoated
RoHS Exempt
Plano-Concave Lens 25.0mm Dia. x -50 FL, Uncoated
NT45-028 $25.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 24.00
Effective Focal Length EFL (mm) -50.00
Back Focal Length BFL (mm) -52.31
Focal Length Tolerance (%) ±1
Radius R1 (mm) -25.84
Edge Thickness ET (mm) 6.33
Center Thickness CT (mm) 3.50
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 40-20
Bevel Max = 0.25mm x 45°
Substrate N-BK7
Coating Uncoated
RoHS Compliant
Plano-Concave Lens 25.0mm Dia. x -100 FL, Uncoated
NT45-026 $25.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 24.00
Effective Focal Length EFL (mm) -100.00
Back Focal Length BFL (mm) -102.31
Focal Length Tolerance (%) ±1
Radius R1 (mm) -51.68
Edge Thickness ET (mm) 4.85
Center Thickness CT (mm) 3.50
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 40-20
Bevel Max = 0.25mm x 45°
Substrate N-BK7
Coating Uncoated
RoHS Compliant
Plano-Concave Lens 50.0mm Dia. x -100 FL, Uncoated
NT45-036 $35.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 50.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 49.00
Effective Focal Length EFL (mm) -100.00
Back Focal Length BFL (mm) -103.30
Focal Length Tolerance (%) ±1
Radius R1 (mm) -51.68
Edge Thickness ET (mm) 11.23
Center Thickness CT (mm) 5.00
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 60-40
Bevel Max = 0.3mm x 45°
Substrate N-BK7
Coating Uncoated
RoHS Exempt
Plano-Concave Lens 50.0mm Dia. x -125 FL, Uncoated
NT45-038 $35.00Click for special volume pricing Click to receive an email with delivery information. Click to add this item to your cart.
Diameter (mm) 50.00
Diameter Tolerance (mm) +0.0/-0.10
Clear Aperture CA (mm) 49.00
Effective Focal Length EFL (mm) -125.00
Back Focal Length BFL (mm) -128.30
Focal Length Tolerance (%) ±1
Radius R1 (mm) -64.60
Edge Thickness ET (mm) 9.87
Center Thickness CT (mm) 5.00
Center Thickness Tolerance (mm) ±0.1
Centering (arcminutes) 3 - 5
Surface Quality 60-40
Bevel Max = 0.3mm x 45°
Substrate N-BK7
Coating Uncoated
RoHS Compliant
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