Precision Alignment Assemblies
Precision alignment assemblies address optical applications where system performance is highly sensitive to alignment accuracy and mechanical stability.
Astravon supports alignment-critical optical assemblies where controlled positioning, repeatable assembly processes, and verification are required to meet defined optical performance targets.
Precision Alignment Assemblies
This includes assemblies in which relative positioning between optical elements must be established and maintained within defined tolerances during manufacturing and delivery.
Mechanical Structure of optical elements
Tube lens Cross section
Optical axes Structure
Typical Assembly Capabilities
The values below represent typical alignment capabilities for fixed optical assemblies. Final tolerances are defined according to optical configuration and system-level performance requirements.
More stringent alignment tolerances can be supported for mission-specific optical configurations.
|
Parameter |
Typical Capability |
|---|---|
|
Optical Element Diameter |
5 – 120 mm |
|
Assembly Envelope |
up to 200 mm |
|
Element Decentration |
up to 5 µm |
|
Element Tilt |
up to 30 arcsec |
|
Axial Spacing Control |
up to 10 µm |
|
Optical Axis Alignment |
up to 50 µrad |
|
Mount Materials |
aluminium, stainless steel, Invar |
|
Fixation Methods |
bonded, clamped, precision retainers |
|
Coating Compatibility |
AR, HR, metal, dielectric |
Typical Characteristics of Precision Alignment Assemblies
Depending on the application, precision alignment assemblies may involve:
- Defined positional and angular tolerances between optical elements
- Controlled mechanical interfaces to maintain alignment stability
- Assembly processes designed to minimise alignment-induced performance variation
- Verification of alignment-sensitive parameters during inspection
These assemblies are intended to support predictable integration into higher-level optical systems.
Typical Assembly Scope
Aluminum, Silicon (Si), Germanium (Ge), Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Gallium Arsenide (GaAs), Calcium Fluoride (CaF₂), Magnesium Fluoride (MgF₂), Copper, Polymers (case-dependent)
* Material availability subject to geometry and qualification constraints
* Space qualification dependent on application
Alignment Sensitivity Considerations
- Deterministic freeform surface generation
- Local form error correction
- Geometry-dependent tooling and fixturing
- Metrology adapted to non-rotational symmetry
Scope & Boundaries
Precision alignment assemblies are delivered as assembly-level solutions, not as complete optical systems.
System-level performance allocation, operational alignment, and final instrument verification remain outside scope unless explicitly agreed.
This approach ensures clear responsibility boundaries and predictable collaboration with Prime contractors and system integrators.
Precision alignment assemblies address optical applications where system performance is highly sensitive to alignment accuracy and mechanical stability.