Even transparent birefringent structures from biology and medicine (heart muscle cells, secondary cell walls, etc.) can be detected by the Full Koehler illumination of Panthera TEC POL Microscopes
With Panthera TEC POL models, now opaque industrial samples can be examined to detect bireflection of flat polished and etched surfaces
Interchangeable 30 W Halogen/3 W LED light source is part of full Koehler setup with field and aperture diaphragm Built-in low energy mode and LED feedback indicator helps optimize workflow LED incident light source can easily be changed to different color temperatures (3500 K or 5500 K) UC Plan Achromatic objectives focus on strain-free mounting for maximum darkness of image background 5-fold encoded nosepiece memorizes light intensity for each objective position to replicate illumination once objective is swung in again Intermediate tube with focusable and centerable Bertrand lens is prepared for conoscopic analysis of crystals and minerals in transmitted light Extended field of view offers 21% more visual area in comparison to basic 20 mm system All trinocular versions (25° viewing angle) have fixed beam split of 50/50 (visual/camera port) 360° rotatable stage runs smoothly for easy positioning of sample, bringing regions precisely into crossing point of eyepiece reticle