Features
Monochromator based, collimated tuneable light source (280-780nm)
Temperature-controlled water bath with mount for plano lens sample
AM2 conditioning beam (including facility to attenuate and filter spectrum)
Optically chopped monochromatic beam with lock-in signal recovery enables measurement under AM2 activation
Automated reference level measurement
Fully-automated by Windows application including establishment and running of pre-defined measurement profiles
Generation of measurement report including parameters required by standards
Applications
ISO/ EN 8980-3:2013 - "Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods."
ISO/ EN 12312-1:2013 - "Eye and face protection. Sunglasses and related eyewear. Sunglasses for general use."
ANSI Z80.3: 2015 - "Non-prescription Sunglass and Fashion Eyewear Requirements."
A S/NZS 1067-2016 - "Sunglasses and fashion spectacles."
Measurement
| Spectral range of operation |
280-780nm |
| Bandwidth |
5nm |
| Wavelength accuracy |
± 0.1nm (2400g/mm), ± 0.2nm (1200g/mm) |
| Beam diameter at sample plane |
4mm diameter |
| Measured transmission range |
0.5-100% |
| Maximum sample diameter |
75mm |
| Conditioning beam |
AM2 with requirements of ISO8980-3:2013
0-50klx
Shutter
Optional filtering |
| Temperature range |
5-50°C |
| Temperature accuracy |
± 0.2°C |
| Bench space required |
1m deep x 2.5m wide |
| Services requirements |
6 x main sockets 1200W power consumption
Nitrogen gas supply where measurements below ambient are required |
Monochromatic Probe Source
| UV source |
30W Deuterium lamp |
| UV-Vis source |
100W Quartz Halogen lamp |
| Monochromator configuration |
Symmetric, single Czerny-Turner |
| Monochromator focal length |
300mm |
| Diffraction gratings |
2400 & 1200 g/mm |
| Diffraction grating mount |
Triple grating turret |
| Dispersion |
5.4nm/mm (2400g/mm)
2.7nm/mm |
| Bandwidth |
5nm |
| Wavelength accuracy |
± 0.1nm (2400g/mm)
± 0.2nm (1200g/mm) |
| Chopping frequency |
175 Hz (typical) |
| Beam diameter at sample plan |
4mm diameter |