Microscope light collector can not be positioned or stuck solution
There are two common types of light collectors: one is a disc or light bar with holes of varying sizes in the disc. This type of light bar relies on a locating spring under the carrier table and a ball that is stuck in the locating hole of the disc to locate the light bar. When the ball is lost or spring failure may cause the light bar can not be positioned. The repair is to replace the ball or spring. Some manufacturers have now changed this method of relying on the spring and ball positioning to rely on the bullet ** to position, this structure is more solid, less prone to damage. The other is the rainbow type light column, it is composed of twelve pieces of circular thin steel sheet (i.e., shade). Just toggle the handle on the sliding right, you can change the size of the aperture at will. Its common fault is that the small steel column on the shade film falls off, resulting in the handle jammed, the aperture can not be changed. Repair method is to use a small screwdriver to the light bar on the two fixed screws to loosen, remove the masking film, the shedding of the small copper column re-installed in the masking film, and with 502 glue to the small copper columns glued firmly, to prevent it from falling off again. Installation should pay attention to, each piece of shade on the two small copper column to the opposite direction. Or find a small section of thickness and the aperture of this light film with close copper wire made into a small copper column mounted, and then the bottom of the light bar (with twelve small holes in the round plate called the base plate) facing up, each piece of shading film ~ end of the small copper columns inserted in the small holes in the base plate, and according to the direction of the counterclockwise outward one by one piece of the neatly aligned. And then let the sliding plate on the sliding groove in order to set in the other end of the above shading piece of the small copper column, cover the cover plate, the three fixing screws can be tightened, if the shading piece of broken one, as long as the broken shading piece of the shading piece of the removal of the light bar can still be used normally, broken more than two pieces of the manufacturer should be purchased from the manufacturer to replace.
