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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Finite Conjugate, Gold Coated, 15X/0.28NA ReflX Objective

Stock #58-422
$2,000.00
Qty 1
$2,000.00
Qty 2
$1,950.00
Volume Pricing
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Style:
Finite Conjugate
Magnification:
15X
Coating:
Protected Gold (700-11000nm)
Numerical Aperture NA:
0.28
Aperture Diameter (mm):
8.5
Coating Specification:
Ravg >96% @ 700 - 11000nm (typical)
Diameter of Small Mirror (mm):
8.8
Entrance Pupil (mm):
7.4 (Diameter)
Field of View, 1/2" Sensor:
0.43mm
Field of View, 2/3" Sensor:
0.59mm
Focal Length FL (mm):
13.3
Manufacturer:
EO
Mounting Threads:
RMS
Obscuration (%):
27.00
Transmitted Wavefront, RMS:
λ/10
Type:
Microscope Objective
Wavelength Range (nm):
700 - 11,000
Working Distance (mm):
23.75

Regulatory Compliance

RoHS:

Product Family Description

  • Industry Leading 19 to 31mm Working Distance
  • EO Designed and Manufactured for Focusing or Imaging Applications
  • Actively Aligned for Optimal Performance
  • Ultra-Wide Spectral Band from 190nm to 11μm with No Chromatic Aberration

Reflective objectives are commonly used in applications requiring superior image quality or focusing performance over a broad spectral range. The Schwarzschild-style objective exhibits near-diffraction limited performance over the full reflecting range of the chosen coating. By eliminating the problems of chromatic aberration and material absorption associated with standard microscope objectives, these components are ideal for applications requiring high throughput and excellent resolution in the UV or IR, including FTIR spectroscopy, ellipsometry, photolithography, and semiconductor inspection.

Objectives are available in both finite and infinite conjugate styles. The finite option is ideal for standard and compact designs as they do not require an additional focusing tube lens. The infinite conjugate design requires a 200mm secondary tube lens. The infinite design allows for the introduction of intermediate filters and beamsplitters, making these objectives ideal for biotech and fluorescence applications as well. For focusing applications, the beam should fill the stated entrance pupil diameter of the objective. In either case, it should be noted that the light is obscured, creating an irradiance profile with less energy in the central portion of the beam.

The ReflX™ objective design features a number of advantages over common Schwarzschild objectives. The rugged design allows these objectives to be integrated into equipment with moderate heat and vibration without sacrificing performance. All internal surfaces have been specially treated to eliminate stray light. Each objective is manufactured in the U.S.A. and assembled, tested, and certified on our Zygo GPI-XP interferometer. A certificate of compliance is included with each objective. TECHSPEC® High Performance ReflX™ objectives are available with λ/4 transmitted wavefront (P-V). For customized versions, including laser coatings and different back tube lengths, please contact our Applications Engineering Department.

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