Description :

These lenses have negative focal lengths, diverge collimated incident light, and form only virtual images which are seen through the lenses. They are often used to expand light beams or increase focal lengths in existing systems.

Specification :

• Material: BK7.
• Diameter tolerance: +0.0/-0.1mm.
• Paraxial focal length: ±2%.
• Centration: 3 arc minutes.
• Surface figure : λ/4 @ 632.8 nm.
• Surface quality: 60/40.
• Clear aperture: >80%.
• Bevel: <0.25mm x 45°.
• Coating: uncoated.

• 
  Condenser Lenses
• 
  Ball Lenses
• 
  Fresnel Lenses
• 
  Specialty Lenses
• 
  Plano-convex (PCX) Spherical Lenses (Optical Lenses)
• 
  Optical Lenses
• 
  IR Lenses And UV Lenses
• 
  Plano-Concave (PCV) Spherical Lenses

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