Sigma Optics - Objective Lens

Product Introduction

Used for microscopes to correct chromatic aberration in the visible spectral range (400-700nm).
When the front end of the lens of OBL-40 and OBL-60 comes into contact with the glass slide, the spring contracts and the front end of the lens can retract into the barrel.
OBL is a finite conjugateobjective lens.
When selecting, please use a 160mm mechanical tube.
The distance from the mounting surface of the objective lens to the image surface is 150mm.

Objective lens (OBL) is used as a spatial filter (SFB) that can correct the distortion of laser beam wavefront.

Equipped with a fixed objective lens holder (LHO).
Equipped with an adapter (TAT-180A) that can be installed onto a cross adjustment bracket (TAT).

Please do not use it for high-energy lasers.
This objective is a finite conjugate objective. When used with an infinite conjugate tube, it will cause the focal position to deviate and the resolution to decrease.
Outside the visible spectral range, aberration and transmittance will deteriorate.