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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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Plano-Concave Lens 3.0mm Dia. x -6 FL, Uncoated

NT45-374

$25.00

Diameter (mm)	3.00
Diameter Tolerance (mm)	+0.0/-0.05
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-6.00
Back Focal Length BFL (mm)	-6.56
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-4.71
Edge Thickness ET (mm)	1.17
Center Thickness CT (mm)	1.00
Center Thickness Tolerance (mm)	±0.1
Centering (arcminutes)	3 - 5
Surface Quality	40-20
Bevel	Max = 0.1mm x 45°
Substrate	N-SF11
Coating	Uncoated
RoHS	Compliant

Plano-Concave Lens 3.0mm Dia. x -9 FL, Uncoated

NT45-376

$25.00

Diameter (mm)	3.00
Diameter Tolerance (mm)	+0.0/-0.05
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-9.00
Back Focal Length BFL (mm)	-9.56
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-7.06
Edge Thickness ET (mm)	1.11
Center Thickness CT (mm)	1.00
Center Thickness Tolerance (mm)	±0.1
Centering (arcminutes)	3 - 5
Surface Quality	40-20
Bevel	Max = 0.1mm x 45°
Substrate	N-SF11
Coating	Uncoated
RoHS	Exempt

Plano-Concave Lens 3.0mm Dia. x -18 FL, Uncoated

NT45-378

$25.00

Diameter (mm)	3.00
Diameter Tolerance (mm)	+0.0/-0.05
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-18.00
Back Focal Length BFL (mm)	-18.84
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-14.12
Edge Thickness ET (mm)	1.56
Center Thickness CT (mm)	1.50
Center Thickness Tolerance (mm)	±0.1
Centering (arcminutes)	3 - 5
Surface Quality	40-20
Bevel	Max = 0.1mm x 45°
Substrate	N-SF11
Coating	Uncoated
RoHS	Exempt

Plano-Concave Lens 6.0mm Dia. x -6 FL, Uncoated

NT45-006

$21.50

Diameter (mm)	6.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-6.00
Back Focal Length BFL (mm)	-6.84
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-4.71
Edge Thickness ET (mm)	2.22
Center Thickness CT (mm)	1.50
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 6.0mm Dia. x -9 FL, Uncoated

NT48-333

$21.00

Diameter (mm)	6.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-9.00
Back Focal Length BFL (mm)	-9.84
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-7.06
Edge Thickness ET (mm)	2.04
Center Thickness CT (mm)	1.50
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 6.0mm Dia. x -12 FL, Uncoated

NT45-008

$21.00

Diameter (mm)	6.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-12.00
Back Focal Length BFL (mm)	-12.99
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-6.20
Edge Thickness ET (mm)	2.12
Center Thickness CT (mm)	1.50
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 6.0mm Dia. x -15 FL, Uncoated

NT48-678

$21.00

Diameter (mm)	6.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-15.00
Back Focal Length BFL (mm)	-16.32
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-7.75
Edge Thickness ET (mm)	2.49
Center Thickness CT (mm)	2.00
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	Exempt

Plano-Concave Lens 6.0mm Dia. x -18 FL, Uncoated

NT45-010

$21.00

Diameter (mm)	6.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-18.00
Back Focal Length BFL (mm)	-19.32
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-9.30
Edge Thickness ET (mm)	2.40
Center Thickness CT (mm)	2.00
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 9.0mm Dia. x -9 FL, Uncoated

NT45-380

$21.50

Diameter (mm)	9.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-9.00
Back Focal Length BFL (mm)	-10.21
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-7.07
Edge Thickness ET (mm)	3.63
Center Thickness CT (mm)	2.25
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 9.0mm Dia. x -12 FL, Uncoated

NT48-334

$21.00

Diameter (mm)	9.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-12.00
Back Focal Length BFL (mm)	-13.26
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-9.42
Edge Thickness ET (mm)	3.24
Center Thickness CT (mm)	2.25
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 9.0mm Dia. x -18 FL, Uncoated

NT45-382

$21.00

Diameter (mm)	9.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-18.00
Back Focal Length BFL (mm)	-19.26
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-14.12
Edge Thickness ET (mm)	2.89
Center Thickness CT (mm)	2.25
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 9.0mm Dia. x -27 FL, Uncoated

NT45-384

$21.00

Diameter (mm)	9.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	≥90% of Diameter
Effective Focal Length EFL (mm)	-27.00
Back Focal Length BFL (mm)	-28.68
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-21.19
Edge Thickness ET (mm)	3.42
Center Thickness CT (mm)	3.00
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 12.0mm Dia. x -12 FL, Uncoated

NT45-014

$23.50

Diameter (mm)	12.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	11.00
Effective Focal Length EFL (mm)	-12.00
Back Focal Length BFL (mm)	-13.23
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-9.42
Edge Thickness ET (mm)	4.12
Center Thickness CT (mm)	2.20
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 12.0mm Dia. x -15 FL, Uncoated

NT48-679

$23.00

Diameter (mm)	12.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	11.00
Effective Focal Length EFL (mm)	-15.00
Back Focal Length BFL (mm)	-16.68
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-11.77
Edge Thickness ET (mm)	4.47
Center Thickness CT (mm)	3.00
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 12.0mm Dia. x -18 FL, Uncoated

NT48-335

$23.00

Diameter (mm)	12.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	11.00
Effective Focal Length EFL (mm)	-18.00
Back Focal Length BFL (mm)	-19.95
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-14.12
Edge Thickness ET (mm)	4.70
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 12.0mm Dia. x -24 FL, Uncoated

NT45-016

$23.00

Diameter (mm)	12.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	11.00
Effective Focal Length EFL (mm)	-24.00
Back Focal Length BFL (mm)	-26.32
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-12.40
Edge Thickness ET (mm)	4.79
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 12.0mm Dia. x -48 FL, Uncoated

NT45-018

$23.00

Diameter (mm)	12.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	11.00
Effective Focal Length EFL (mm)	-48.00
Back Focal Length BFL (mm)	-50.31
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-24.81
Edge Thickness ET (mm)	4.12
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 20.0mm Dia. x -30 FL, Uncoated

NT45-020

$25.00

Diameter (mm)	20.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	19.00
Effective Focal Length EFL (mm)	-30.00
Back Focal Length BFL (mm)	-31.96
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-23.54
Edge Thickness ET (mm)	5.39
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 20.0mm Dia. x -40 FL, Uncoated

NT45-022

$25.00

Diameter (mm)	20.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	19.00
Effective Focal Length EFL (mm)	-40.00
Back Focal Length BFL (mm)	-42.31
Focal Length Tolerance (%)	±1
Radius R₁ (mm)	-20.67
Edge Thickness ET (mm)	5.69
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	Exempt

Plano-Concave Lens 20.0mm Dia. x -50 FL, Uncoated

NT45-024

$25.00

Diameter (mm)	20.00
Diameter Tolerance (mm)	+0.0/-0.10
Clear Aperture CA (mm)	19.00
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)	5.21
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	Exempt

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TECHSPEC® Uncoated Plano-Concave (PCV) Lenses

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