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
Description
OptoSigma's glass compensated objectives correct spherical aberration effects which occur from the use of microscope slide cover glasses. Our standard corrections are for 0.7 and 1.1mm, but ask us if you require something different.
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YAG 3-Wavelengths Objectives (266 nm, 355 nm and 532 nm)
Description
Looking for an objective to use for pulsed YAG harmonic wavelengths and visible imaging? OptoSigma's 3-wavelength YAG objectives are design for use at 266, 355, and 532 nm, and visible observation from 400-500nm, ideal for materials processing applications. These YAG objectives have long-working-distances, high numerical apertures (NA), and are extremely cost advantageous!
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YAG 2-Wavelengths Objectives (355 nm and 532 nm)
Description
Looking for an objective to use for pulsed YAG harmonic wavelengths and visible imaging? OptoSigma's 2-wavelength YAG objectives are design for use at 355 and 532 nm, in addition to visible observation from 400-500nm, ideal for materials processing applications. These YAG objectives have long-working-distances, high numerical apertures (NA), and are extremely cost advantageous!
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Near Ultra-Violet Objectives (350 nm - 800 nm)
Description
OptoSigma Near UV Objective Lenses are designed for use with 355 nm (3rd harmonic YAG) laser and also visible light. The chromatic aberration has been minimized in the visible so you can image through the same lens your laser goes through with high transmittance. These work very well for custom microscope configurations using our Modular Microscope System (OUCI).
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Infrared Objectives (400 nm - 1400 nm)
Description
OptoSigma's high Numerical Aperture (NA) near infrared (NIR) objectives are infinity corrected and designed for use with femtosecond and YAG lasers. These objectives have a long working distance and field curvature correction making them ideal for laser processing with coaxial imaging in the visible to monitor your processing. The NIR objectives are also available with glass thickness compensation if you are using a protective window or cover glass. These work very well for custom microscope configurations using our Modular Microscope System (OUCI).
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Visible Objectives (400 nm - 750 nm)
Description
When you need long working distance and infinity correction in the visible wavelength range, OptoSigma's Visible Objectives are the answer. Our Visible Objectives are optimize for 400 to 700 nm and are offered with 45 mm or 90 mm parfocal distance. With chromatic aberration correction over the visible wavelength range, these objectives can be used for visible laser systems with coaxial observation. If you require long and ultra long working distance objectives for a zoom microscope, these are offered as well. Our visible objectives work very well for custom microscope configurations using our Modular Microscope System (OUCI).
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Reflective objectives
Description
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Tube Lenses
Description
OptoSigma Tube Lenses are designed to be used with our infinity corrected objectives to focus the image of YAG (fundamental to 3rd or 4th harmonic) and Fiber lasers. Input light should enter the threaded end of the Tube Lens to minimize chromatic and spherical aberrations. OptoSigma's Tube Lenses are an excellent accompaniment to our OUCI Modular Microscope.
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 |
|
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 |
|
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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*The indicated millimeter-to-inch diameter conversion values are rounded