Commonly Used Opticaly Threads
Common Type of Optical Threads
|
Thread Specification |
Model |
Description |
|
SM05 |
0.535"-40 |
For 12.7 mm optical components or connections with SM05-related products |
|
SM1 |
1.035"-40 |
For 25.4 mm optical components or connections with SM1-related products |
|
SM30 |
M30.5×0.5 |
For 30 mm optical components or connections with SM30-related products |
|
SM1.5 |
1.535"-40 |
For 38.1 mm optical components or connections with SM1.5-related products |
|
SM2 |
2.035"-40 |
For 50.8 mm optical components or connections with SM2-related products |
|
SM3 |
3.035"-40 |
For 76.2 mm optical components or connections with SM3-related products |
|
S-Mount |
M12×0.5 |
Industrial cameras and lenses |
|
C-Mount |
1.00"-32 |
Industrial cameras and lenses |
|
T-Mount |
M42×0.75 |
|
|
RMS (0.800"-36) |
RMS |
Standard thread for most microscopes, such as Olympus and other common brands |
|
M32×0.75 |
|
Matches large-format objectives like apochromatic objectives for biology |
|
M26×0.706 |
|
Suitable for Mitutoyo (Japan) and Sigma Koki (Japan) large-format objectives |
|
M25×0.75 |
|
Suitable for Nikon (Japan) large-format objectives |
Additional Notes:
- The "SM" thread series is widely used for securing optical components, with a pitch of 40 threads per inch (TPI). For example, SM1 = 1.035"-40, where the thread diameter is 1.035 inches, and the pitch is 40 TPI.
- Regarding standards for mounting optical components, a typical setup requires a drilled hole of approximately M10.5 × 0.5, with a thread depth of about 10.1 mm to accommodate a standard 10 mm optical component securely.