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.
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Glass thickness (0.7 mm and 1.1 mm) Compensation Objectives
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YAG 3-Wavelengths Objectives (266 nm, 355 nm and 532 nm)
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YAG 2-Wavelengths Objectives (355 nm and 532 nm)
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Near Ultra-Violet Objectives (350 nm - 800 nm)
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Infrared Objectives (400 nm - 1400 nm)
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Visible Objectives (400 nm - 750 nm)
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Reflective objectives
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Tube Lenses
Selection Guide for Objective Lenses
Groups |
Description |
Design Wavelengths |
Magnifications |
Mounting Thread |
Working Distance Range |
Objective Families |
|---|---|---|---|---|---|---|
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 |
|
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 |
|
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 |
|
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 |
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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 |
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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 |
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