OAV On-Axis Video microscope

Parallax Free Sample Visualization

The X-ray beam passes through the objective’s lens system by means of a central hole which is coaxial with the optical axis.

This coaxial video microscope provides a parallax free sample visualization that allows in situ perfect alignment of the sample.

This unique design is developed by the EMBL Grenoble Instrumentation Group (Cipriani team).

Optical performances

The OAV Ultra-Zoom is composed of a high resolution drilled objective giving x3 to x30 magnification, a numerical aperture of 0.28 and a working distance of 31.8 mm; it is combined with a high performance zoom and a digital camera which enables a resolution of  659 x 493 px (standard CCD) or 1360 x 1024 px (optional CCD).

The integration of these elements provides excellent optical performance, with a resolution of 0.35 µm/px (standard CCD) or 0.16 µm/px (optional CCD). Consequently, the OAV allows distinguishing objects as small as 1 µm.

Semi-automatic centering

Integrated to MD2-S & MD3 diffractometers, the OAV Ultra-Zoom is linked to a “three click-centering” function that gives the possibility in only three clicks to:

• Localize the X-ray beam

• Align the sample to the X-ray beam position

• Center the sample with the X-ray beam

Optic Fiber & LED technologies ready

Thanks to the integrated polarizer, the OAV Ultra-Zoom can condense the light produced by LED and conveyed by fiber optic, so the OAV works perfectly with the Luciole Cold Light Source developed by Arinax.

The OAV takes all the advantages of the 3 fiber optic output channels available with the Luciole CLS: it provides a dual frontlight of maximal 2 x 1050 Lm and a backlight of maximal 1050 Lm without heat emission (LED illumination).