Key Features
System accuracy for refractive index measurement:
5x10-6 (sample size at least 10 mm)
System accuracy for angle measurement:
±0.5 arc sec
Manual air bearing rotary table with axial and radial run-out errors smaller than 0.05 µm 
Focusable collimator and focusable autocollimator for a wide spectral range
HgCd spectral lamp with spectral lines
between 404.6 nm and 643.8 nm as standard and  optionally between 365 and 1014 nm
Spectral lamp covering the spectral range from 365 nm up to 1014 nm

Applications
SpectroMaster® Goniometer-Spectrometers are used for high-precision determination of the refractive index and dispersion of optical glass and crystalline materials in the UV, VIS or IR spectral range.

	SpectroMaster® HR Compact
Maximum wavelength range	365-1014
Standard	VIS (visible)
Optional	NUV (near UV), NIR (near IR)
Apex angle measurement accuracy	0.5 arcsec
Refractive index measurement accuracy	VIS: 5x10-6 (Temperature controlled to 0.1°)
Collimator	Focusing refractive collimator
Autocollimator	Focusing refractive autocollimator
Spectral lamp housing	Spectral lamp housing for a single (HgCd lamp)
Detector	CCD
Order number	5-108-01

Goniometer
	Ultra-high precision rotary air bearing,  axial and radial run-out <0.05 µm,  High precision angular encoder Measuring range +/- 100°  Air supply unit
SpectroMaster® HR Compact	Angle measurement accuracy 0.5 arcsec
Manual	Differential fine-pitch micrometer screw  with software-assisted adjustment help

Collimator

• Focusing refractive collimator
• Clear aperture 50 mm
• Focal length 300 mm

Autocollimator

• Focusing refractive autocollimator
• Clear aperture 50 mm
• Focal length 300 mm
• LED illumination
• High-resolution CCD camera

Spectral lamp housing

• Spectral lamp housing for a single (HgCd)
• Spectral lamp power supply
• Fused silica condensor optics

Sample stage

Sample table with 3-axis (120°) tilt adjustment screws

• Precision manual linear stage for sample position adjustment
• Precision manual rotary stage for sample rotation
• Rotary encoder for measurement of sample rotation angle