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 :

• Paraxial focal length: ±2.
• Centration: 3 arc minutes.
• Surface figure:?/4 @ 632.8 nm.
• Surface quality: 60/40.
• Clear aperture: >80%.
• Bevel: <0.25mm x 45°.
• Coating: uncoated.

• 
  Condenser Lenses
• 
  Fresnel Lenses
• 
  Micro Lenses
• 
  IR Lenses And UV Lenses
• 
  Achromatic Lenses
• 
  Specialty Lenses
• 
  Plano-convex (PCX) Spherical Lenses (Optical Lenses)
• 
  Meniscus Lenses

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