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GCL-0106 Achromatic-Doublets

Computer-optimized for infinite conjugation

Excellent performance

The achromatic-doublet consists of a positive low-index (crown) and a negative high-index (flint) lens. These lenses are computer-optimized for infinite conjugate ratio. They also exhibit excellent paraxial performance, minimal spherical aberration, coma and smallest chromatic aberration. When used for focusing or collimating, the convex lens or the smaller radius surface always faces the collimated light, while used to image the convex lens must be adjacent to the object or image with longer distance.
Large aperture achromatic lenses are air-spaced, and can be found under GCL-0107.

  Material: Optical glass (crown and flint)
  Fringes:
1-5
  Focal Length (f'): ± 2%
  Irregularity of Fringes: 0.2-0.5
  Diameter (Ø):  -0.20mm
  Surface Quality:
60-40 scratch-dig
  Center Thickness (Tc): ± 0.1mm
  Coating:  MgF2 AR Coated
  Centration:  3 arc minutes
  Clear Aperture:
90% Ø

mGcm0106.gif (1498 bytes)

GCL-0106 Achromatic-Doublets

Catalog No. Ø f' fb Tc Te
GCL-010661 6.0 10.0 7.8 4.2 3.0
GCL-010662 6.0 20.0 18.6 3.1 2.5
GCL-010601 6.0 30.0 28.8 2.8 2.4
GCL-010612 10.0 20.0 17.0 5.0 3.4
GCL-010613 10.0 30.0 28.2 3.7 2.7
GCL-010602 12.7 50.0 48.1 4.3 3.3
GCL-010603 12.7 75.0 73.3 3.8 3.1
GCL-010620 20.0 40.0 35.5 8.5 5.4
GCL-010621 20.0 50.0 46.4 7.4 4.9
GCL-010622 20.0 60.0 56.8 6.7 4.6
GCL-010604 25.4 100.0 96.4 7.7 5.7
Catalog No. Ø f' fb Tc Te
GCL-010605 25.4 150.0 147.1 6.5 5.2
GCL-010606 25.4 200.0 197.3 6.1 5.1
GCL-010630 30.0 50.0 42.3 13.5 7.7
GCL-010631 30.0 75.0 69.7 9.9 6.2
GCL-010632 30.0 90.0 85.7 8.8 5.8
GCL-010607 38.1 150.0 145.2 10.3 7.4
GCL-010608 38.1 200.0 195.8 9.0 6.8
GCL-010609 38.1 300.0 296.3 8.0 6.5
GCL-010640 40.0 120.0 114.2 12.1 6.7
GCL-010641 40.0 250.0 246.1 8.6 6.7
GCL-010610 50.8 400.0 395.5 9.7 7.8
GCL-010611 50.8 500.0 495.9 9.0 7.5

All dimensions are in mm unless otherwise specified.

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