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Bi-convex lenses are manufactured with an identical convex surface on both
sides of the lens.
- Bi-convex lenses have positive focal lengths and form both real and
virtual images.
- Aberrations such as coma,
distortion, and chromatic aberration almost exactly cancel out at unit
conjugate ratios due to the symmetry. Aberrations will increase as conjugate
ratios depart from unity.
- Recommended for virtual imaging of real objects, and for positive
conjugate ratios from approximately 0.2 to 5. Values are wavelength sensitive.
- Antireflection coatings can be ordered as an
option.
- Bi-convex elements have a Minimum Order Quantity (MOQ) ranging from 100
to 1,000 units.
General Specifications:
Parameter |
Value |
Default unit |
mm |
Material |
BK7 |
Diameter tolerance |
+0, -0.1mm |
Clear aperture |
90% |
Focal length tolerance |
+/-1% |
Center thickness tolerance |
+/-0.2mm |
Centration |
3 arc min |
Surface quality |
20-10 |
PN: |
DXP029
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Description: |
Bi-convex lens precision grade BK7 D= 20.0 EFL= 22.0
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Material: |
BK7
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EFL: |
22
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Diameter: |
20
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Index: |
1.51872
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BFL: |
19.60
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Tc: |
6.9
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Te: |
1.99
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Radius1: |
21.577
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Radius2: |
-21.5772620044949
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Volume Price: |
Request Volume Quote |
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