■ Types of stereo microscopes

 

There are two types of optical systems for stereo microscopes: CMO (平行光学系) and Greenough (斜光学系).

 

 

 

■ The size of ring lights for stereo microscopes

 

Ring lights can be attached to either type.

 

 

 

The ring light is designed to match the size of the tip of a Greenough-type stereo microscope.

Below is the dimensional diagram of a stereo microscope from a well-known domestic manufacturer.

 

 

Except for specialized microscopes, there is little variation in size among manufacturers. Therefore, the inner diameter of the ring light for microscopes typically ranges from φ60mm to φ70mm.

 

 

■ Mounting position

Regardless of the manufacturer, those with grooves for fixing the light can be mounted.

 

 

 

 

However, types without grooves may not be mountable.

Additionally, if auxiliary lenses are used, there may be interference preventing their use.

 

 

 

 

■ If the lighting fixture does not have grooves for mounting

 

Both Greenough-type and Galilean-type microscopes may have models without grooves.

For such types, the lighting cannot be mounted directly onto the microscope.

 

However, if there are screws for attaching a filter on the back of the cover, as shown in the photo below, these screws can be used to attach the ring light’s fixing ring.

 

 

We offer ring light fixing rings with screw diameters of M48 and M49.

 

Ring adapter for stereo microscopes RA-48／RA-49

 

By attaching this fixing ring to the tip of the microscope, a groove for securing the ring light is created.

The ring light is then mounted onto this groove.