BK7 Plano Convex Lenses

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Specifications

Material: BK7, UVFS, CaF2, ZnSe, H-K9L
Diameter: 3 mm
Focal Length: 4 mm
Edge Thickness, Te: 0.8 mm
Lens Type: Plano-Convex
Material: BK7
Design Wavelength: 587.6nm
Diameter Tolerance: +0.0/ -0.1mm
Center Thickness Tolerance: ±0.1mm
Surface Figure: λ/4 @633nm
Focal Length Tolerance: ±1%
Centration: 3 arc min.
Surface Quality: 40/20-60/40
Bevel: 0.2×45°-0.4×45°
Coating: Uncoated or Customized AR
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Features


  • Versatile Functionality: Designed for focusing parallel light or converting spot light into parallel light, suitable for a wide range of optical applications.

  • Broad Spectral Range: Offers high transmittance from visible light to near-infrared wavelengths (350-2000nm), ensuring excellent performance across diverse optical setups.

  • High-Quality Material: Constructed from BK7 optical glass, renowned for its superior optical properties, including high transmittance and low dispersion.

  • Precision Design: Engineered with precise diameter and center thickness tolerances, ensuring consistency and reliability in optical performance.

  • Optimized Surface Quality: Features λ/4 surface figure at 633nm, providing excellent imaging quality and minimizing optical aberrations.

  • Customizable Options: Available in various diameters (Dia), effective focal lengths (EFL), back focal lengths (BFL), center thicknesses (CT), and edge thicknesses (ET), offering flexibility to suit specific application requirements.

  • Coating Options: Offered with optional custom anti-reflective (AR) coatings to enhance transmission and reduce glare, ensuring optimal performance in different lighting conditions.


Summary:



  • Material:   BK7

  • Design Wavelength:  587.6nm

  • Diameter Tolerance:  +0.0/-0.1mm

  • Center Thickness Tolerance:  ±0.1mm

  • Surface Figure:  λ/4 @633nm

  • Focal Length Tolerance:  ±1%

  • Centration:  3 arc min.

  • Surface Quality:  40/20-60/40

  • Bevel:  0.2×45°-0.4×45°

  • Coating: Uncoated or Customized AR

Applications


  • Imaging Systems: Used in cameras, microscopes, and telescopes for focusing and magnification, enabling clear and precise imaging.

  • Laser Systems: Employed as focusing lenses or collimators in laser systems for beam shaping, alignment, and beam expansion.

  • Optical Instrumentation: Integrated into optical setups for beam manipulation, beam steering, and light focusing, facilitating various experimental and research applications.

  • Medical Devices: Utilized in medical imaging equipment and diagnostic instruments for light focusing and beam alignment, enabling accurate analysis and diagnosis.

  • Industrial Applications: Applied in industrial measurement systems, barcode scanners, and laser processing equipment for precision optical alignment and beam control.