NIR Optical Lenses

NIR Objective lenses with transmission from 400 to 1,800nm are available in magnifications of 2X, 5X, 10X, 20X,  and 50X and are compatible with [PN0790] SW640-5 Camera and [PN0792] 4 Position Turret.

Applications
  • NIR analysis

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Overview

Specifications

Setup

Operation

Maintenance

    Overview

Included Components

  • Shock resistant carrying case

Required Products

Related Products

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    Specifications

Optics


1/2X (in development)

 2X 5X 10X 20X 50X
Parfocal Distance

N/A

 95mm 95mm
 95mm
 95mm
 95mm
Focal Length

400mm

 100mm 40mm 20mm
 10mm 4mm
Tube Lens Focal Length

200mm

 200mm
 200mm
 200mm
 200mm
 200mm
Working Distance

120mm

 34.6mm
 45mm
 34mm
 30.8mm
 20.5mm

Field of View*

6.4 x 4.8mm1.6 x 1.2mm0.64 x 0.48mm0.32 x 0.24mm0.16 x 0.12mm0.064 x 0.048mm
Numerical Aperture

0.025

 0.055
 0.14
 0.28
 0.29
 0.42
Mounting Threads

M26x1

 M26x1
 M26x1
 M26x1
 M26x1
 M26x1
Wavelength Range

400 - 1,800nm

 400 - 1,800nm 400 - 1,800nm
 400 - 1,800nm
 400 - 1,800nm
 400 - 1,800nm
*These FoV values are only true if the lenses are paired with Optotherm's Univid 200mm tube lens.

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    Setup


    Operation


    Maintenance

Lens Cleaning

Delicate Lenses: Please follow these instructions carefully to avoid lens damage.

Precautions

To protect the lens from damage, follow these guidelines.

  • Never touch the lens with hard or abrasive objects.
  • Do not use solvents to clean the lens.  Solvents may remove the lens coating.
  • Do not use lens cleaning papers or tissues to wipe the lens.  These products are abrasive and will scratch the lens.
Lens Cleaning Kit

This is provided with your camera and includes the following components.

  • Air bulb blower
  • Lens cleaning solution
  • Wiping cloth
  • Cotton swabs
Lens cleaning Procedure

Excessive dust or debris on the camera lens can reduce measurement accuracy.  To clean the lens, follow this procedure.

  1. Use the air bulb blower and brush to remove any dust or loose grit from the lens.
  2. Put a few drops of the cleaning solution on the cloth and gently wipe across the lens (not round and round).  Use only enough pressure to remove the smudges (do not rub hard).
  3. Use the cotton swabs for tougher lens grime but avoid rubbing the same spot over and over.

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