Diamond Optical Lenses

Curved diamond optics that focus or shape light.

Good to know

Curvature and aperture define the optical form.
Refractive behaviour must be evaluated at the operating wavelength.
Single lenses and lens arrays require different alignment and mounting definitions.

What we define for diamond optical lenses, with units and how each is typically measured. We confirm values for your application in technical review.

Parameter	Unit	Typical test method
Profile, curvature or focal length	mm	Contact or optical profilometry
Clear aperture	mm	Optical measurement to drawing
Thickness and tolerance (bulk or layer)	mm	Micrometer or optical gauge
Lateral size, outline or diameter, and tolerance	mm	Optical measurement
Edge condition and chip limit		Microscopy inspection to drawing

Parameter	Unit	Typical test method
Surface quality (scratch and dig)		Visual inspection (ISO 10110-7)
Surface roughness per side	nm Ra	Profilometry or AFM

Parameter	Unit	Typical test method
Transmittance over operating band or photon-energy range	%	FTIR or UV–Vis spectrophotometry
Coating construction and thickness	nm	Spectrophotometry, XRF or cross-section
Optical scatter and haze	%	Integrating-sphere measurement
Birefringence	nm/cm	Polarimetry
Refractive index and dispersion		Ellipsometry or prism coupling
Transmitted wavefront error	fringes	Interferometry
Laser-induced damage threshold	J/cm²	Laser damage test (ISO 21254)
Coating adhesion and environmental durability		Tape and humidity test (ISO 9211)