Aspheric Condenser Lens / AGL
Aspheric condenser lens is a single lens for collection and condensing, which the radius of curvature of one side is changed according to the height from the optical axis to minimize spherical aberration. The other side is plano or convex.
These lenses can condense light at a short focal length superior to what can be achieved with spherical lenses.Since these lenses are molded polished from B270-Superwhite, complex shapes that cannot be polished can be easily manufactured.
These lenses are designed for the use at infinite conjugate ratios and focal lengths are designed at 587.6nm (yellow helium line [d]).
Common Specifications
| Material | B270®(nd＝1.523) |  |
|---|---|---|
| Shape | Front surface: Aspherical Rear surface: Plano or Convex |
|
| Coating | Uncoated | |
| Maximum Operating Temperature | 170℃ | |
| Surface Quality (Scratch-Dig) | 80 - 50 | |
| Clear Aperture | 80% of the diameter |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| Part Number | Diameter φD |
Focal Length*2 f |
Back Focal Length*2 fb |
NA*1 (D/2×0.8/f) |
Thickness of the Edge te |
Thickness of the Center*2 tc |
Rear Surface |
|---|---|---|---|---|---|---|---|
| AGL-12-8.5P | φ12mm | 8.5mm | 5.8mm | 0.56 | 1.6mm | 5.5mm | Convex |
| AGL-12-10.5P | φ12mm | 10.5mm | 8.2mm | 0.46 | 1.1mm | 3.5mm | Plano |
| AGL-18-12P | φ18mm | 12mm | 6.9mm | 0.6 | 3.3mm | 8.8mm | Convex |
| AGL-18-15.5P | φ18mm | 15.5mm | 10.8mm | 0.46 | 3mm | 7mm | Plano |
| AGL-19-17P | φ19mm | 17mm | 12.4mm | 0.45 | 1.8mm | 7mm | Plano |
| AGL-24-18P | φ24mm | 18mm | 11.4mm | 0.53 | 2mm | 10mm | Plano |
| AGL-25-20P | φ25mm | 20mm | 15.1mm | 0.5 | 1.2mm | 7.5mm | Plano |
| AGL-30-23.5P | φ30mm | 23.5mm | 14.3mm | 0.51 | 3.8mm | 14mm | Plano |
| AGL-30-26.5P | φ30mm | 26.5mm | 19.3mm | 0.45 | 3mm | 11mm | Plano |
| AGL-32.5-23.5P | φ32.5mm | 23.5mm | 15.1mm | 0.55 | 2.5mm | 14mm | Convex |
| AGL-38-34.5P | φ38mm | 34.5mm | 26.6mm | 0.44 | 1.5mm | 12mm | Plano |
| AGL-50-39P | φ50mm | 39mm | 25.5mm | 0.51 | 2.8mm | 20.5mm | Plano |
| AGL-50-50P | φ50mm | 50mm | 40.6mm | 0.4 | 2.5mm | 14.4mm | Convex |
*1 NA is calculated using 80% of the outer diameter of the lens.
*2 Since this is a molding lens, therefore , it typically only can be used for illumination purpose.
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