6.4 Changing Optics Assemblies
MVR systems are equipped with a bayonet optics mount that allows optic assemblies to be changed quickly by the user, for example to switch from zoom operation to fixed-magnification telecentric measurements, or to switch between telecentric lenses with different magnifications. Note : The positioning of different optics assemblies in the bayonet mount is not exact, so do not change optics in the middle of a measurement run. An LED quad ring light is normally part of the 6.5:1 zoom optics assembly and should always remain attached to that assembly. A different LED ring lights fits all telecentric lens assem- blies from 0.3X to 4.0X. This ring light can be transferred from one telecentric lens to another when these have been removed from the system. Refer to the following figure.
Figure 20. 6.5:1 Zoom Optics assembly (left), Telecentric Optics Assembly (right)
Before You Begin
Before you begin removing the optics assembly, review the following information to prevent damage to the optics:
• Use two hands to remove a lens assembly, as it is heavy and is suddenly released. A drop onto the stage glass could break the lens and the stage, causing damage.
• Do not leave the camera unprotected by a lens assembly to minimize dust settling on the CCD sensor surface.
• Do not touch optical surfaces. Oil from your hands can permanently damage optical coatings.
• Place unused lens assemblies in a polyethylene Ziploc bag for dirt protection.
• Store unused lens assemblies in a safe place, since they are breakable and expensive.
Made with FlippingBook - professional solution for displaying marketing and sales documents online