Aspheric Condenser Lens 20mm Diameter 31.7mm Focal Length
AGL-20-31.7P
The aspheric shape allows the lens to achieve a shorter focus with smaller spherical aberration than provided by a similar convex surface of a plano convex lens. the lens is used for squeezing small illumination light or condensing efficiently the light emanating from a single point.
◦Aspheric lenses can be used in a wide range from the visible to infrared of 1.5μm wavelength.
◦There are two types of AGL-31.7P with a reduced spherical aberration by the plano convex lens of BK7 and AGL-12P with high NA using (FDS-90) high refractive index glass (FDS90).
◦An aspheric shape can be produced by using a special polishing equipment. Polished Aspheric lenses do not have shrinkage, cracking and chipping which usually appear in molded aspheric lenses.
◦There are two types of AGL-31.7P with a reduced spherical aberration by the plano convex lens of BK7 and AGL-12P with high NA using (FDS-90) high refractive index glass (FDS90).
◦An aspheric shape can be produced by using a special polishing equipment. Polished Aspheric lenses do not have shrinkage, cracking and chipping which usually appear in molded aspheric lenses.
| Name | Aspheric Condenser Lens 20mm Diameter 31.7mm Focal Length |
|---|---|
| Weight | 0.0060lbs |
| Standard Coatings Available | No |
| Guide |
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| Remark | - |
| Attention |
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| Image Label | Aspheric Condenser Lens 20mm Diameter 31.7mm Focal Length |
| Diameter φD | 20mm |
| Focal length | 31.7mm |
| Material | BK7 |
| Material | BK7 |
| Diameter φD | 20mm |
| Focal length f | 31.7mm |
| Back focal length fb | 27.7mm |
| Numerical aparture (NA) | 0.25 |
| Edge thickness te | 2.8mm |
| Center thickness tc | 6mm |
| Rear surface | Plano |
| Availability | Please contact |
In stock
SKU
AGL-20-31.7P
SGD 257.30
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The aspheric shape allows the lens to achieve a shorter focus with smaller spherical aberration than provided by a similar convex surface of a plano convex lens. the lens is used for squeezing small illumination light or condensing efficiently the light emanating from a single point.
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