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BK7 Meniscus Lenses
Material:
BK7 grade A, fine annealed
Focal Length (f'): ±2%
Diameter (F): -0.10mm
Center Thickness (Tc): ±0.1mm
Centration: 3 arc minutes
Fringes: 1~5
Irregularity of Fringes: 0.1~0.5
Surface Quality: 20-10 scratch-dig
Coating: MgF2 AR coated
Clear Aperture: 90% F
DH-0405:
BK7 Meniscus Lenses
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(All
dimensions are in mm unless otherwise specified.
Due to our strong technique, we can also supply custom components for your special requirements.)
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Catalog
No.
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Ø
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f'
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fb
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Tc
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Te
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DH-040501
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25.4
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50.0
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44.6
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5.0
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1.3
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DH-040502
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25.4
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100.0
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94.9
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4.0
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2.4
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DH-040503
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25.4
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150.0
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144.8
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4.0
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2.9
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DH-040504
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25.4
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200.0
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195.1
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3.5
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2.7
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DH-040505
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25.4
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-50.0
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-53.3
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5.0
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9.4
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DH-040506
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25.4
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-100.0
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-104.1
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3.0
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4.7
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DH-040507
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25.4
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-150.0
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-153.9
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3.0
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4.1
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DH-040508
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25.4
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-200.0
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-203.6
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3.0
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3.8
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rights Resevered: Changchun Deheng Optics Co.,Ltd ADD:5-9，Dongling
Nan Street,Changchun,Jilin,China Postal Code:130022
Tel:+86-431-5202975 Fax:+86-431-5202965
E-mail:info@dhoptics.com
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