BALL & DRUM LENSES
TOWER OPTICAL 社製 Ball & Drum Lenses
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Specifications
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Ball Lenses Ball lenses are used for various tasks such as improving the coupling between optical fibers and the emitters or detectors they interface with. Standard size lenses range from 1.0mm to 5.0mm. Custom made sizes or special materials are also available. All Ball lenses can be ordered with full-surface anti-reflection (AR) coating. The effective focal length of a ball lens is given by the following
formula: The Numerical Aperture, NA, of a ball lens is dependent on the
focal length of the ball and on the input diameter, d.
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Ordering info
| Model No | Diameter | Material |
| LB1-001 | 1.0mm | BK7 |
| LB1-002 | 2.0mm | BK7 |
| LB1-003 | 3.0mm | BK7 |
| LB1-004 | 4.0mm | BK7 |
| LB1-005 | 5.0mm | BK7 |
| LB2-001 | 1.0mm | UV FS |
| LB2-002 | 2.0mm | UV FS |
| LB2-003 | 3.0mm | UV FS |
| LB2-004 | 4.0mm | UV FS |
| LB2-005 | 5.0mm | UV FS |
| LB2-006 | 6.0mm | UV FS |
| LB2-008 | 8.0mm | UV FS |
| LB2-010 | 10.0mm | UV FS |
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Specifications
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Drum Lenses A Drum Lens is a variation of a ball lens where a portion of the ball is ground down to a smaller diameter. These lenses are used in similar applications to those of ball lenses. The Drum Lens adds the ability to handle and package it in a different way. |
Ordering info
LD2-XXX-yyy is fused silica drum lenses. Contact factory for pricing. |
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