61-6928-03 Long Working Distance Objective Lens 5x EPL-5
Analyzer, Testing Equipment

61-6928-03 Long Working Distance Objective Lens 5x EPL-5

model: 61-6928-03
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6928-03Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6928-03
Product Brand: SIGMAKOKI CO., LTD.

Features

  • A long-actuated objective lens with infinity correction and a 45 mm focal length that can be ***d in coaxial observation systems and laser introduction optical systems.
  • It can be ***d to collect visible laser light in addition to microscopic observation of distant objects.
  • Chromatic aberration is corrected in the visible range (400~700 nm).
  • The EPL/EPLE is lightweight and can improve the response speed of the objective lens drive mechanism (SFS-OBL/SFAI-OBL) by, for example, autofocusing.
  • A fixed objective lens holder (LHO-26) is available.
  • The observation unit with coaxial illumination (OUCI-2) and the dichroic block for laser introduction (DIMC) are available as the lens barrel for laser processing.
  • * When the objective lens is ***d for laser processing, ext*** the incident beam diameter (1/e^2) to about half of the pupil diameter.
  • * If the incident beam is too thin, a small focusing spot cannot be obtained.
  • * The high energy density of the laser can damage the objective lens.
  • * When laser beam machining is performed using an objective lens, the surface of the objective lens may become dirty due to the machined spring.
  • * Ensure sufficient operating distance (WD) or insert a thin glass shield to protect the objective lens from contamination.
  • * The magnification is the same as when the imaging lens f=200 mm is ***d.
  • * Magnification may differ when ***d with a microscope barrel of another manufacturer.
  • * For the actual magnification, check the focal length of the imaging lens of the lens barrel you are using, and determine the ratio between the focal length of the imaging lens and the focal length of the objective lens.

Spec

  • Magnification: 5 times
  • NA : 0.13
  • Operating distance WD: 11.6mm
  • Focus distance f: 40mm
  • Resolution: 2μm
  • Focus depth: ±16.3μm
  • Pupil diameter: φ10.4mm
  • Camera field of view (1/2 type): 0.96 x 1.28mm
  • Mass: 0.09kg
  • RoHS conform product

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