MCL-TIRF 对焦锁定器-北京欧兰科技发展有限公司

详细信息

Features

Keeps the sample in the focal plane
Maintains a constant TIRF signal
Can be used to maintain TIR or any illumination angle (HILO)
Compatible with RM21™, MicroMirror TIRF, and the TIRF Module
Compatible with Mad City Labs nanopositioning systemsfor Z or XYZ sample positioning

Product Description

After the user sets up TIR illumination and establishes the desired sample Z position, TIRF Lock™ keeps the sample in the focal plane by measuring the displacement of the exiting TIRF beam and maintaining that position via software feedback. The TIRF Lock™ system includes a quadrant photo-diode (QPD) head, a TIRF Lock™ controller, and a LabVIEW based VI. The TIRF Lock™ system is compatible with Mad City Labs RM21™ microscopes, the MicroMirror TIRF system, and the TIRF Module.

As shown in the diagram above on the left, a small change in Z position of the sample due to differential thermal expansion in the microscope will result in a small change in position of the exit beam on the detector. The software uses that change in position to calculate an opposing change in the nanopositioner Z position, as shown in the schematic above on the right.

Technical Specifications
Detector Wavelength Range	400nm-100nm
Detector Peak Responsivity	0.4A/W @635nm
Detector Peak Responsivity	0.67A/W @900nm
Recommended Incident Beam Size	300 μm to 1.5mmm
Sensor Size	2.4mm x 2.4mm
Clear aperture diameter	0.5 inches (1.25mm)
Aperture thread	SM05 (#0.535-40)
Detector head mounting thread	8-32 or M4
Mounting post holder thread	1/4-20 or M6 (magnetic base and clamping fork provided)
Detector head cable length	6 feet (1.83m)
Power supply	90-260V
Controller dimensions	8.375 x 3.5 x 12 inches
PC connections	USB 2.0
Operating system compatibility	(32 or 64 bit) Windows XP Pro/Vista/7/Window 8