Betensh Optics manufactures a wide variety of plano concave lenses optimized for the UV (ultraviolet), visible, and IR (infrared) spectrums. Our range includes options with AR coatings for enhanced performance. We also offer custom optical lenses, including bi concave lenses and double concave lenses, ideal for applications requiring light divergence or image formation from distant objects.
Material :
Optical glass, Fused silica, Silicon, Germanium, CaF2, MgF2, Sapphire, ZnSe, ZnSDimension :
0.5 to 350 mmDimension Tolerance :
+0/-0.02 mmSurface Quality :
10-5Coating :
Uncoated, AR and HRThickness Tolerance :
±0.01 mmSurface Figure :
λ/10Centration :
1 minute or 30 SecondSpecifications of our lenses include material, surface quality, clear aperture, diameter tolerance, thickness tolerance, and surface irregularity.
Contact us for manufacturing limit or custom specifications.
Specification:
|
Material |
BK7 or Fused Silica |
|
Design Wavelength |
546.1 nm |
|
Design Index |
|
|
BK7 |
1.5183 ± 0.0005 |
|
Fused Silica |
1.46008±0.00005 |
|
Diameter Tolerance |
+0.00, -0.15 mm |
|
Thickness Tolerance |
±0.2 mm |
|
Paraxial Focal Length |
±2% |
|
Centration |
<3 arc minutes |
|
Clear Aperture |
>85% |
|
Surface Irregularity |
λ/4@632.8 nm |
|
Surface Quality |
60-40 scratch and dig |
|
Protective Bevel |
0.25 mm x 45° |
BK7 Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
TPE201 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
|
TPE202 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
|
TPE203 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
|
TPE204 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
|
TPE205 |
-200.0 |
25.4 |
103.66 |
2.0 |
2.7 |
-201.3 |
|
TPE206 |
-500.0 |
25.4 |
259.15 |
2.0 |
2.3 |
-501.3 |
|
TPE207 |
-1000.0 |
25.4 |
518.3 |
2.0 |
2.2 |
-1001.3 |
Note: Other material, size and coating are available upon request.
Fused Silica Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
TPE301 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
|
TPE302 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
|
TPE303 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
|
TPE304 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
Note: Other material, size and coating are available upon request.
We specialize in manufacturing high-quality plano-convex lenses. These versatile optical lenses feature a positive focal length and are designed for various imaging and focusing needs. Plano-convex lenses are a fundamental choice in optical systems, offering significant advantages for applications requiring light collimation and monochromatic illumination.
Details
Betensh Optics manufactures a wide variety of plano concave lenses optimized for the UV (ultraviolet), visible, and IR (infrared) spectrums. Our range includes options with AR coatings for enhanced performance. We also offer custom optical lenses, including bi concave lenses and double concave lenses, ideal for applications requiring light divergence or image formation from distant objects.
Details
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Details
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Details
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Details
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Details
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Details
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Details
Our hours
Mon 11/21 - Wed 11/23: 9 AM - 8 PM
Thu 11/24: closed - Happy Thanksgiving!
Fri 11/25: 8 AM - 10 PM
Sat 11/26 - Sun 11/27: 10 AM - 9 PM
(all hours are Eastern Time)
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