|
Double-Concave Lens, 6mm Dia. x -6mm FL, Uncoated
|
#32-986
|
|
|
|
| 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) |
-6.41
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-9.74
|
| Edge Thickness ET (mm) |
2.29
|
| Center Thickness CT (mm) |
1.50
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 6mm Dia. x -9mm FL, Uncoated
|
#48-932
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|
|
|
| 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) |
-9.32
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-9.47
|
| Edge Thickness ET (mm) |
1.79
|
| Center Thickness CT (mm) |
1.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Exempt
|
|
|
Double-Concave Lens, 6mm Dia. x -12mm FL, Uncoated
|
#48-681
|
|
|
|
| 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) |
-12.33
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-12.57
|
| Edge Thickness ET (mm) |
1.59
|
| Center Thickness CT (mm) |
1.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Exempt
|
|
|
Double-Concave Lens, 9mm Dia. x -9mm FL, Uncoated
|
#48-336
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|
|
|
| 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) |
-9.61
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-14.60
|
| Edge Thickness ET (mm) |
3.48
|
| Center Thickness CT (mm) |
2.25
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 9mm Dia. x -12mm FL, Uncoated
|
#48-933
|
|
|
|
| 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) |
-12.41
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-19.16
|
| Edge Thickness ET (mm) |
2.43
|
| Center Thickness CT (mm) |
1.50
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 9mm Dia. x -18mm FL, Uncoated
|
#48-682
|
|
|
|
| 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) |
-18.49
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-18.86
|
| Edge Thickness ET (mm) |
2.45
|
| Center Thickness CT (mm) |
1.50
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Exempt
|
|
|
Double-Concave Lens, 12mm Dia. x -12mm FL, Uncoated
|
#32-988
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|
|
|
| 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) |
-12.81
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-19.47
|
| Edge Thickness ET (mm) |
4.71
|
| Center Thickness CT (mm) |
3.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 12mm Dia. x -18mm FL, Uncoated
|
#48-934
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|
|
|
| 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) |
-18.65
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-18.94
|
| Edge Thickness ET (mm) |
3.76
|
| Center Thickness CT (mm) |
2.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Exempt
|
|
|
Double-Concave Lens, 12mm Dia. x -24mm FL, Uncoated
|
#48-683
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|
|
|
| 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) |
-24.65
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-25.14
|
| Edge Thickness ET (mm) |
3.31
|
| Center Thickness CT (mm) |
2.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Exempt
|
|
|
Double-Concave Lens, 20mm Dia. x -20mm FL, Uncoated
|
#32-990
|
|
|
|
| Diameter (mm) |
20.00
|
| Diameter Tolerance (mm) |
+0.0/-0.10
|
| Clear Aperture CA (mm) |
19.00
|
| Effective Focal Length EFL (mm) |
-20.00
|
| Back Focal Length BFL (mm) |
-20.55
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-31.82
|
| Edge Thickness ET (mm) |
5.03
|
| Center Thickness CT (mm) |
2.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 25mm Dia. x -25mm FL, Uncoated
|
#32-992
|
|
|
|
| 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) |
-25.69
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-39.78
|
| Edge Thickness ET (mm) |
6.33
|
| Center Thickness CT (mm) |
2.50
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-SF11
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 25mm Dia. x -50mm FL, Uncoated
|
#32-996
|
|
|
|
| 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) |
-50.82
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-52.10
|
| Edge Thickness ET (mm) |
5.40
|
| Center Thickness CT (mm) |
2.50
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
|
Double-Concave Lens, 25mm Dia. x -100mm FL, Uncoated
|
#32-994
|
|
|
|
| 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) |
-101.64
|
| Focal Length Tolerance (%) |
±1
|
| Radius R1=-R2 (mm) |
-104.20
|
| Edge Thickness ET (mm) |
6.43
|
| Center Thickness CT (mm) |
5.00
|
| Center Thickness Tolerance (mm) |
±0.1
|
| Centering (arcminutes) |
3 - 5
|
| Surface Quality |
40-20
|
| Bevel |
0.25mm x 45°
|
| Substrate |
N-BK7
|
| Coating |
Uncoated
|
| RoHS |
Compliant
|
|
Uncoated Double-Concave (DCV) Lenses
View Legend
