The 405nm laser modules are designed for applications such as biomedical instrumentation, imaging, spectroscopy, fluorescence sensing, microscopy and many other emerging technologies.
The compact and efficient 405nm laser modules produce either an elliptical output beam of 4 x 1.5mm with output power of 4mW, or a 2mm circular output beam with output power of 0.9mW. The glass AR coated optical lens may be adjusted to produce either a collimated beam or focused spot. The standard lens may be replaced by other optical systems such as line generators.
The laser is extremely stable and reliable and offers the added advantage of TTL modulation input which will accept signals from DC up to 1 kHz minimum. TTL modulation can be used to enable, inhibit or modulate the laser.
Operating voltage is from 8V to 12V DC at an operating current of 90mA, or 100mA. Beam divergence is <0.6mrad for the circular output beam and <0.6 x 0.3mrad for the elliptical output beam. Operating temperature range is -10°C to +50°C.
The modules are cylindrical with an optional 25mm mounting flange and consist of an aluminium housing, laser diode, drive circuit and collimating lens. Mechanical dimensions are a compact 12 mm diameter x 43mm length. Electrical connections are made via external flying leads.
Besides the IEC 60601-1 the IEC 60601-2-22 must also be observed for foot-operated control devices for diagnostic and therapeutical laser devices . This standard demands, for example, high requirements for mechanical stability. It requires protection against unintentional actuation and prescribes specific actuating forces. Besides this, certain protection classes – depending on the appropriate application – are determined according to IEC 60529. A mainly redundant design of the switching elements, as well as details concerning the cable and its entry at the foot-operated control device, also belong to the requirements.
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