The CM1-DCH dichroic filter cube holds a rectangular dichroic mirror or other rectangular optic up to 36 mm wide, 26 mm tall, and 3 mm thick using the integrated filter clamp. Two flat head hex screws on the base of the cube can be unscrewed with a 1.5 mm hex key to detach the base from the cube housing, allowing access to the mirror clamp (See the photo below right).
Emission and excitation filters can also be mounted into short lens tubes and attached to the SM1-threaded ports for a full fluorescence imaging filter setup (see the Application tab for more information). CM1-DCH cubes have four 4-40-threaded holes on each face for 30 mm cage system integration and are post mountable via an 8-32 (M4) tap. The cubes can also be connected sequentially using the CM1-CC cage cube connector sold below.
Please note: The filter holder base features a modified FFM1 filter holder mount. Our catalog FFM1 is not compatible with the CM1-DCH. Additional CM1-DCH bases may be ordered as a special by contacting tech support.
Mounting Service
If any of our microscopy filters is ordered at the same time as the CM1-DCH, Thorlabs will premount the filter at no additional charge. In order to take advantage of this option, please contact Technical Support prior to ordering.
The CM1-DCH can be used along with two SM1L03 lens tubes to hold a complete imaging filter set within a cage system. The emission and excitation filters are mounted in the 0.3" lens tubes attached to the cage cube. Mouse over the photo to see the correcponding components in the table to the right.

| Product Description | Qty. | Photo (Click to Enlarge) |
|---|---|---|
| CM1-DCH Dichroic Cube | 1 | ![]() |
| SM1L03 0.3" Long Lens Tube | 2 | ![]() |
| Fluorescence Filter Set | 1 | ![]() |
| ER Cage Rods | 12 | ![]() |
Part Number |
Description |
Price |
Availability |
|---|---|---|---|
CM1-DCH |
Customer Inspired!30 mm Cage Cube with Dichroic Filter Mount |
$150.00 |
Today |
CM1-DCH/M |
Customer Inspired!30 mm Cage Cube with Dichroic Filter Mount (Metric) |
$150.00 |
Today |
The CM1-CC cube connector allows two or more CM1 style cubes to be connected as shown in the image to the right. The current CM1 series, empty cubes, empty dichroic cubes, mounted beamsplitters, and mounted turning mirrors are all compatible with the cube connector.
Alignment Pins
Please note that the connector requires drilled holes on the cube face next to the SM1-threaded (1.035"-40) ports, as the cube connector has alignment pins. If you have an older cube and would like it updated for free, please contact Technical Support. Alternatively, the alignment pins are press-fit inside their mounting holes, and can be pressed out for use with un-drilled cubes.
Part Number |
Description |
Price |
Availability |
|---|---|---|---|
CM1-CC |
30 mm Cage Cube Connector for CM1-4E Series Cubes |
$42.00 |
Today |