Manual Actuators

Optosigma Manual Actuators are compact positioning elements used to add fine adjustment capability to standard optical mounts and mechanical assemblies. Unlike stages, they provide a single linear push function rather than a guided travel mechanism.

Micrometer actuators:
– Standard micrometer heads: 0 to 13 mm travel; 0.01 mm graduation with thimble scale; interchangeable with Mitutoyo standard
– Fine-pitch micrometer: 0 to 6 mm; 0.001 mm least graduation
– Body styles: plain barrel, locking collar, flat-end tip, ball-end tip, flat anvil
– Used as drop-in replacements in Optosigma mirror mounts and tip-tilt stages

Differential micrometer actuators:
– Two-pitch lead screw design: coarse thread 0.5 mm/rev outer, fine thread 0.25 mm/rev inner
– Net travel per revolution: 0.25 mm, giving resolution below 0.001 mm with fine adjustment
– No backlash compensation needed for fine positioning; smooth motion without stick-slip
– Used in: fiber coupling stages, beam expanders, precision alignment fixtures

Spring-loaded push-pull actuators:
– Return spring eliminates backlash for push-only micrometer drives
– Preloaded tip for constant contact with driven surface

Adjustment screws:
– Ball-end set screws and adjustment screws for tip-tilt platforms
– Stainless steel with fine-pitch thread; various hex socket sizes

NewRoad provides Optosigma manual actuators in Israel as spare parts and upgrades for optomechanical assemblies in photonics and laser labs.