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20mm Dia. x 17.5mm FL, VIS-EXT Coated Molded Aspheric Condenser Lens

Molded Aspheric Condenser Lenses

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Stock #71-495 Contact Us
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$71.50
Volume Pricing
Qty 1-10 $71.50 each
Qty 11-49 $65.00 each
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Specifications

General

Type:
Condenser Lens
Note:
Click here for more information on the ISO 10110 surface quality specification.

Physical & Mechanical Properties

Diameter (mm):
20.00 +0.0/-0.3
Diameter of Asphere (mm):
20.0
Center Thickness CT (mm):
8.30 ±0.20
Edge Thickness ET (mm):
2.3
Clear Aperture CA (mm):
16.00
Centering (arcmin):
≤30
Shape of Back Surface:
Convex
Bevel:
Protective as needed

Optical Properties

Effective Focal Length EFL (mm):
17.50 @ 587.6nm
Focal Length Tolerance (%):
±5
Back Focal Length BFL (mm):
12.40
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
f/#:
0.88
Numerical Aperture NA:
0.57
Coating:
VIS-EXT (350-700nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
Wavelength Range (nm):
350 - 700
Surface Quality:
Molded Side: 5/3 x 0.4; E 0.2
Polished Side: 5/3 x 0.25; E 0.2
Radius R2 (mm):
117.5
Conjugate Distance:
Infinite

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 242:

Product Details

  • Hardened for Improved Durability
  • High Numerical Apertures
  • Ideal for Illumination Applications

Molded Aspheric Condenser Lenses are pressed, hardened, and annealed to meet precise optical and mechanical specifications. The hardening process improves the durability of the lenses, making them less susceptible to thermal shock and scratching than traditionally polished lenses. These Molded Aspheric Condenser Lenses are ground and polished on the second surface, enhancing the overall precision of the lenses. Molded Aspheric Condenser lenses are ideal for a wide range of illumination and detection applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms.

Technical Information

 
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