Plane Mirrors
Flat reflective optics for beam folding, steering, alignment and imaging systems.
Beam SteeringOptical Mirrors
Precision optical mirrors engineered for high-reflectivity beam steering, focusing and imaging across demanding spectral ranges.
Mirror Types
Precision Mirrors for Reflection, Focusing and Beam Control
Standard and custom mirror geometries can be optimized around wavelength, incidence angle, wavefront requirements and environmental conditions.
Concave Mirrors
Curved reflective surfaces for focusing, collimation and reflective imaging applications.
FocusingConvex Mirrors
Diverging reflective optics for beam expansion and wide-field optical configurations.
Beam ExpansionOff-Axis Parabolic Mirrors
Reflective focusing and collimation without chromatic aberration.
Achromatic FocusingCylindrical Mirrors
One-axis reflective focusing for beam shaping and line-forming systems.
One-Axis FocusingCustom Shaped Mirrors
Custom sizes, profiles and shapes engineered around unique optical and mechanical requirements.
Custom GeometryReflective Coatings
Coating Performance Matched to the Optical System
Mirror performance is driven by coating selection, wavelength range, incidence angle, polarization and operating environment.
Aluminum
Broadband UV-to-IR performance with protected and enhanced aluminum options.
Silver
High visible and near-infrared reflectivity for imaging and sensing systems.
Gold
Excellent infrared reflectivity for thermal imaging and IR instrumentation.
Dielectric HR
High-reflectivity multilayer designs tailored to wavelength and incidence angle.
Engineering & Specifications
Specify What Matters to Mirror Performance
Optical and mechanical tolerances should be selected around system performance rather than automatically using the tightest specification.
Surface Flatness / Figure
Define reflected-wavefront requirements according to imaging, focusing and beam-control sensitivity.
Surface Quality
Match scratch-dig requirements to scattering, laser sensitivity and imaging performance.
Coating & Wavelength
Specify spectral range, reflectivity target, incidence angle and polarization where applicable.
Substrate
Select optical glass, fused silica or other substrates around thermal, mechanical and spectral requirements.
Geometry & Mounting
Coordinate diameter, thickness, curvature, bevels and mounting interfaces with the optical assembly.
Engineering recommendation: provide wavelength range, angle of incidence, environment and required reflected-wavefront performance with the RFQ. This helps avoid unnecessary coating and polishing cost.
Typical Applications
Optical Mirrors Integrated into Precision Systems
Reflective optics support compact beam paths and spectral performance across laser, imaging, sensing and scientific instruments.
Laser Systems
Beam steering, folding, alignment and laser delivery systems.
Imaging & Vision
Reflective imaging and compact machine-vision optical layouts.
Infrared & Sensing
Gold and protected-metal mirrors for IR sensing and thermal optical systems.
Scientific & Metrology
Interferometry, spectroscopy and precision measurement systems.
Engineering Resources
Mirror Selection and Coating Resources
Selection Guide
How to Select an Optical Mirror
Choose geometry, substrate and coating around wavelength and optical function.
Read Guide → Coating GuideMetallic vs. Dielectric Coatings
Compare aluminum, silver, gold and dielectric reflective coating strategies.
Explore Coatings → Engineering GuideMirror Flatness & Surface Figure
Understand when tighter reflected-wavefront specifications are justified.
Read Guide →FAQ
Optical Mirror Frequently Asked Questions
Which reflective coating should I use?
Selection depends on wavelength range, required reflectivity, incidence angle, polarization, environment and bandwidth. Aluminum, silver, gold and dielectric systems serve different spectral requirements.
Can COE manufacture custom mirror sizes and shapes?
Yes. Custom dimensions, substrate materials, curvature, polished surfaces, bevels and coating requirements can be reviewed from customer drawings.
When is a dielectric mirror preferred over a metallic mirror?
Dielectric coatings are commonly selected when very high reflectivity is required over a defined spectral band and angle range. Metallic coatings are often preferred for broader spectral coverage.
How should mirror flatness be specified?
Flatness or surface figure should be tied to allowable reflected-wavefront error and system sensitivity rather than automatically selecting the tightest available tolerance.
Custom Optical Mirrors
Have a Mirror Drawing or Coating Requirement?
Send the substrate, dimensions, wavelength range, angle of incidence, coating and quantity for engineering review.