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Double Concave Lens

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Double Concave Lens
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Material:
BK7
Design Wavelength:
546.1nm,n=1.518721
Diameter Tolerance:
+0.0/-0.1mm
Paraxial Focal Length:
±2%
Centration:
3arcminutes
Surface Figure:
l/4@632.8nm
Surface Quality:
60/40
Clear Aperture:
>80%
Bevel:
<0.25mmX45°
Coating:
Uncoated
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多属性暂无数据
B站不支持优惠卷

Moq: 1 Unit

Country Of Origin: China

Lead Time: 4weeks

Terms Of Delivery: Fob Fuzhou

Terms Of Payment: Net 30 Days By T/t


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Double Concave Lenses

Double Concave Lenses are manufactured with both surfaces concave. These lenses have negative focal lengths. These lenses diverge collimated incident light and form virtual images, which are seen through the lens. They are often used to expand light or increase focal lengths in existing systems. They are used in laser beam expanders, optical character readers, viewers, and projection systems. We will provide precision grade double concave Lenses with tighter manufacturing tolerances.

FAQ
Do you produce standard products or customized?

Mostly customized, we can produce your elements according to your drawing with detailed specifications.

What is your Min. and Max. dimension for spherical lenses?

Min. D2mm, Max. D200mm.

What is your high precision?

Surface quality 10-5, Flatness L/10, centration 30 arc sec, parallelism 1arc sec, angle tolerance 3arc sec.

What is your MOQ?

Generally no MOQ, from prototype to volume quantity, we support both.

What is the delivery time for CRYLIGHT?

Generally 4 weeks, for urgent parts we will help expedite. For complex products, we will confirm accordingly.

What payment methods do you accept?

We accept T/T bank transfer and credit card payment.

100% prepayment for new client and net 30 days for old customers.

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Product Features

 

The Double Concave Lenses are made from BK7 material, which are manufactured with both surfaces concave. These lenses have negative focal lengths. These lenses diverge collimated incident light and form virtual images

01

which are seen through the lens. They are often used to expand light or increase focal lengths in existing systems. They are used in laser beam expanders

02

optical character readers, viewers, and projection systems. We will provide precision grade Double Concave Lenses with tighter manufacturing tolerances.

Double Concave Lens -BK7



 

Item#&phi;(mm)f(mm)R2=R2(mm)TcTeFb
BCV1-0016.0-15.015.202.101.514.30
BCV1-0026.0-30.030.831.791.529.42
BCV1-10112.7-15.014.654.892.013.27
BCV1-10212.7-20.020.044.072.018.62
BCV1-10312.7-25.025.353.622.023.82
BCV1-10412.7-30.030.553.332.028.89
BCV1-10512.7-40.041.022.992.039.04
BCV1-10612.7-50.051.402.792.049.08
BCV1-10712.7-75.077.452.522.074.24
BCV1-10812.7-100.0103.282.392.099.16
BCV1-20125.4-25.024.729.022.022.24
BCV1-20225.4-31.731.557.342.029.15
BCV1-20325.4-35.035.086.762.032.66
BCV1-20425.4-50.050.935.222.048.22
BCV1-20525.4-75.077.094.112.073.63
BCV1-20625.4-100.0103.043.572.098.73
BCV1-20725.4-125.0129.123.252.0123.92
BCV1-20825.4-150.0155.103.042.0149.00
BCV1-20925.4-175.0181.132.892.0174.12
BCV1-21025.4-200.0207.002.782.0199.07
BCV1-21125.4-250.0258.902.622.0249.12
BCV1-21225.4-300.0310.802.522.0299.17
BCV1-21325.4-500.0518.302.312.0499.21
BCV1-21425.4-1000.01037.102.162.0999.32
BCV1-30138.0-45.044.8710.442.041.46
BCV1-30238.0-50.049.9710.503.046.40
BCV1-30338.0-100.0102.576.553.097.78
BCV1-30438.0-150.0154.705.343.0148.23
BCV1-30538.0-200.0206.704.753.0198.46
BCV1-30638.0-350.0362.404.003.0348.66
BCV1-30738.0-500.0518.103.703.0498.79
BCV1-30838.0-700.0725.603.503.0698.84
BCV1-30940.0-63.564.428.271.960.70
BCV1-50150.0-100.0102.069.203.096.90
BCV1-50250.0-150.0154.277.103.0147.60
BCV1-50350.0-200.0206.286.003.0198.00
BCV1-50450.0-250.0258.225.403.0248.20
BCV1-50550.0-400.0413.874.503.0398.50
BCV1-50650.0-450.0465.734.303.0448.60
BCV1-50750.0-500.0517.584.203.0448.60
BCV1-50850.0-600.0621.284.003.0598.70
BCV1-50950.0-800.0828.643.83.0798.70

Double Concave Lens - Fused Silica



 

Item#&phi;(mm)f(mm)R1=R2(mm)TcTeFb
BCV2-0016.0-15.014.031.52.1515.50
BCV2-0026.0-30.027.841.51.8230.51
BCV2-10112.7-15.014.112.05.0215.67
BCV2-10212.7-20.018.712.04.2220.67
BCV2-10312.7-25.023.322.03.7625.68
BCV2-10412.7-30.027.922.03.4630.68
BCV2-10512.7-40.037.122.03.0940.68
BCV2-20125.4-25.023.322.09.5225.68
BCV2-20225.4-35.032.522.07.1735.68
BCV2-20325.4-50.046.322.05.5550.68
BCV2-20425.4-75.069.332.04.3575.69
BCV2-20525.4-100.092.332.03.76100.68
BCV2-20625.4-150.0138.342.03.17150.68
BCV2-20725.4-200.0184.352.02.88200.69
BCV2-20825.4-250.0230.362.02.70250.69
BCV2-20925.4-300.0276.362.02.58300.68
BCV2-21025.4-500.0460.402.02.35500.69
BCV2-21125.4-1000.0920.482.02.181000.69
BCV2-30138.0-50.046.483.011.1251.02
BCV2-30238.0-100.092.493.06.95101.03
BCV2-30338.0-150.0138.503.05.62151.03
BCV2-30438.0-200.0184.503.04.96201.02
BCV2-30538.0-350.0322.533.04.13351.03
BCV2-30638.0-500.0460.553.03.78501.02
BCV2-30738.0-750.0690.593.03.52751.02
BCV2-30838.0-1000.0920.643.03.391001.04
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