Objectives

Objectives

Objectives are the business end of microscopes, but they have also found uses in many other applications like high power lasers, as well as UV and IR applications.  OptoSigma objectives come in 5x to 100x magnifications and can also be provided with cover glass compensation which can be modified to correct spherical aberration for looking into samples of various indices of refraction.  We also offer long working distance objectives and if chromatic aberration correction is required, OptoSigma also offers reflective objectives optimized for broadband use.  Our standard objectives are infinity corrected Completely custom objectives are possible, just ask.

guide product

Selection Guide for Objective Lenses

 

Groups

Description

Design Wavelengths

Magnifications

Mounting Thread

Working Distance Range

Objective Families

standard_grade_mounts
UV Objectives

These UV objective lens are infinity corrected and can be used for laser machining with pulsed 3rd and 4th harmonic YAG Lasers. Chromatic aberration is suppressed in both the visible and UV laser wavelength, achieving a high transmittance. Available with glass thickness compensation.

266, 355 nm

10X

20X

50X

80X

M26

3.5-30.5mm

  • Ultra-Violet Objectives (266-355nm)
  • Near Ultra-Violet Objectives (355-800 nm)
standard_grade_mounts
Visible Objectives

Visible objective lenses are available in standard and long working distance (LWD) versions. Chromatic aberration and infinity correction is available with LWD types. The objective will allow user to focus a visible laser or perform microscopic observation of objects from a distance.

400−700nm

1X

2X

5X

10X

20X

50X

100X

M20.32 (RMS)

M26

0.3-45.3mm

  • Long Working Distance - PAL-PAL-L
  • Standard - EPL-EPLE
  • Low Cost – OBL
standard_grade_mounts
IR Objectives

IR objective lens have high numerical apertures and are infinity corrected. They are used for laser machining with pulsed fundamental-harmonic YAG Lasers. Chromatic aberration is suppressed in the visible laser wavelength, achieving a high transmittance. Available with glass thickness compensation.

1064nm

5X

10X

20X

50X

100X

M26

10-44mm

  • PAL-NIR-LC
  • PAL-NIR
standard_grade_mounts
Multi-Wavelength YAG Laser Objectives

These objective lens can be used for machining with YAG lasers. A single objective can be used for all three harmonic wavelengths: 2nd HG, 3rd HG, and 4th HG. Multi-wavelength objectives are infinity corrected and have long working distances.

266, 355, 532nm

10X

20X

50X

80X

M26

10.0-15.1mm

  • YAG Triple Wavelength Objectives - PFL-UV - NUV-AG
  • YAG 2-Wavelengths Objectives (355 and 532 nm)
standard_grade_mounts
Glass-Thickness-Compensated Objectives

These objectives are designed with compensation for cover glass-thickness aberrations, making it possible to realize ideal beam spot size and quality while processing thorough a cover glass. These objective lenses can be used for laser repair processing for LCD or OLED modules.

266, 355, 532, 1,064nm

10X

20X

50X

80X

100X

M26

9.65-30.85mm

  • UV Objectives-PFL-UV-AG-LC
  • NUV Objectives - PFL-UV-LC
  • NIR Objectives – PFL-NIR-LC
standard_grade_mounts
Reflective Objectives

These reflective microscope objective lenses eliminate chromatic aberration over a wide bandwidth from the UV to the MWIR. They are typically used in microscope-spectrometry and failure-analysis applications in the semiconductor industry.

350-7,000nm

10X

20X

50X

40X

M20.32 (RMS)

3.5-16mm

  • OBLR