uScope head problems



uScope head top view.
Both red laser (red) and white light from the fiber (yellow) reach the specimen
and are reflected into the video camera (right side).


Baffles in the tube above the objective.

uScope head with mirror sled in right-most position for binocular eyepiece use with transmitted light from condensor.

uScope head with mirror sled in center position for binocular eyepiece use with reflected light. The laser path is blocked.

The reflected-light-beamsplitter on the mirror sled showing a reflection of the metal backside.

The view down the uScope tube shows a reflection of the beamsplitter off of the large back window of the 10x objective. This is a problem...

A view of the back wall behind the reflected-light-beamsplitter on the mirror sled.

A piece of black paper was used to block light on the back side of the reflected-light-beamsplitter on the mirror sled to eliminate the reflection there.

The view down the uscope tube is no longer blocked by the reflection. Epi-illumination spot can be seen on the target specimen with the objective removed.

uScope head with mirror sled in left-most position. In this position the binocular eyepieces cannot be used. Instead the fiber light illuminates the specimen from above and the reflected light is sent into the video camera with the beamsplitter-sled in the shown position. Laser light can also reach the specimen but the beamsplitter sled is typically moved to the left during Raman spectroscopy to allow maximum laser light to reach the specimen while blocking the fiber light from reaching the specimen and from reaching the video camera.