The University of New South Wales

Site

ORLAB – Optics & Radiometry Laboratory

Accreditation No.

1923

Site No.

1916

Date of Accreditation

04 Mar 1985

Address

Room LG22 Old Main Building , Gate 14, Barker Street , UNSW
Unsw Sydney, NSW 2052
Australia

orlab.optometry.unsw.edu.au

Contact

Mr B Cheng P: +61 (02) 93854622

Availability

Services available to external clients

Scope of Accreditation

ISO/IEC 17025 (2017)

Calibration

  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Service Product Determinant Technique Procedure Limitations
Optical metrology - Optical measuring equipment Gloss meters Gloss; Linearity Direct comparison against a reference standard; Direct measurement using a reference meter

Capability

With Calibration and measurement capability of-

Measurement of gloss standards;

0.3 gloss units for high gloss (all geometries);
1.2 gloss units for semi gloss;

Calibration of gloss meters;

0.4 gloss units for high gloss (all geometries)
 2.8 gloss units for semi gloss 20°
 1.0 gloss units for semi gloss 60°
 2.3 gloss units for semi gloss 85°

Haze meters Haze; Linearity Direct comparison against a reference meter; Direct comparison against a reference standard; Direct measurement using a reference meter

Capability

Measurement of haze standards and calibration of haze meters

With Calibration and measurement capability of-

0.1% at 0% haze, rising to 0.45% at 20% haze and 0.65% at 40% haze;

Illuminance meters; Light meters; Luxmeters; Photometers Illuminance; Linearity Direct comparison against a reference meter; Direct measurement by superposition method; Direct measurement using a reference standard

Capability

Photometers for Illuminant A and correction factors for Illuminant C

With Calibration and measurement capability of-

1.2% in the range 1 to 10 000 lux;

Luminance meters Linearity; Luminance Direct comparison against a reference meter; Direct measurement by superposition method; Direct measurement using a reference standard

Capability

 Incandescent lamps, with or without broadband filters

With Calibration and measurement capability of-

1.4% or 0.01 cd.m-2 (whichever is the greater) from 0.1 cd.m-2;

Reflectance densitometers Linearity; Reflectance Direct comparison against a reference meter; Direct comparison against a reference standard

Capability

With Calibration and measurement capability of-

0.02 reflectance in the range 0.02 to 1;

Spectrophotometers Linearity; Reflectance; Stray light; Transmittance; Wavelength Direct comparison against a reference spectrometer; Direct comparison against a reference standard; Direct measurement by comparison with established emission lines; Direct measurement by comparison with established spectral features

Capability

With Calibration and measurement capability of-

0.3 nm in wavelength;
0.1% minimum detectable stray light;
0.1% transmittance;
0.9 % reflectance;

Spectroradiometers Linearity; Responsivity; Stray light; Wavelength Direct comparison against a reference meter; Direct determination by optical methods; Direct measurement by comparison with established emission lines; Direct measurement by comparison with established spectral features; Direct measurement by superposition method; Direct measurement using a reference standard

Capability

With Calibration and measurement capability of-

0.1 nm in wavelength;
0.1% minimum detectable stray light;
3.3% at 380 nm falling to 1.0% at 555 nm and rising to 1.8% at 780 nm;
in spectral radiance response;
18% at 240 nm falling to 2.0% at 380 nm, 1.0% at 555 nm and rising to 2.4%;
at 830 nm in spectral irradiance response;

Transmittance densitometers Linearity; Transmittance Direct comparison against a reference meter; Direct comparison against a reference standard

Capability

With Calibration and measurement capability of-

0.01 absorbance from 4 ABS

Tricolorimeters Chromaticity; Linearity Direct measurement using a reference standard

Capability

With Calibration and measurement capability of-

Incident light tricolorimeters;

0.002 x and y;

Reflectance tricolorimeters;

0.001 in CIE (1931) coordinates (x and y);

Optical metrology - Optical standards and reference equipment Diffuse reflectance plates Luminance Direct measurement using a reference meter

Capability

With Calibration and measurement capability of-

Luminance factor;
3.0% of measured value + 0.01 with incandescent lamps;
5.0% of measured value + 0.01 with other white light sources;

Reflectance Comparison with a reference meter

Capability

With Calibration and measurement capability of-

Broadband reflectance;

Measurements of luminous reflectance with incandescent lamps on plane mirrors;
 0.01 for measured values greater than 0.80 or less than 0.20;
 0.02 for measured values between 0.20 and 0.80;

Spectral reflectance;

Diffuse and total (non-fluorescent) in the wavelength range 320 to 780 nm;
 0.0004 + 0.0047ρ + 0.1Δρ/Δλ;
 Specular included and matt and gloss sample specular excluded;
 0.0005 + 0.0047ρ + 0.1Δρ/Δλ;
 Semi-gloss samples specular excluded;
 0.0004 + 0.0014ρ + 0.1Δρ/Δλ;
 Samples with specular reflection only;
 In the wavelength range 780 to 2500 nm;
 0.001+ 0.0049ρ + 0.2Δρ/Δλ;

Diffuse reflectance plates; Discharge sources - Lamps; Filters; LED sources; Solid state lighting (SSL) sources Chromaticity Direct measurement using a reference spectrophotometer

Capability

With Calibration and measurement capability of-

Spectral measurements;

0.0015 in chromaticity;
0.06 in CIE colour rendering index;

Colour difference measurements;
0.4 delta E in CIE LUV and CIE LAB
0.001 in CIE (1931) coordinates (x and y)

Broadband measurements;
0.004 in CIE 1931 coordinates (x and y) for;

Incandescent lamps, with or without broadband filters or other white light sources;

Discharge sources - Lamps Spectral irradiance Direct measurement using a reference spectrophotometer

Capability

With Calibration and measurement capability of-

0.3 nm in wavelength;
18% at 280 nm falling to 2.0% at 380 nm, 1% at 555 nm and rising to 2.4%;
at 830 nm in spectral irradiance;

Discharge sources - Lamps; Incandescent lamps; LED sources; Solid state lighting (SSL) sources Illuminance Direct measurement using a reference meter

Capability

With Calibration and measurement capability of-

Incandescent lamps;
0.9% in the range 0.1 to 10 000 lux;
Other sources;
1.5% in the range 0.1 to 10 000 lux;

Correlated colour temperature Direct measurement using a reference spectrophotometer

Capability

With Calibration and measurement capability of-

15K;
 In the region of 2856K rising to ± 50K at 5500K and ± 200K at 12000K;

Luminous intensity Direct measurement by goniophotometer; Direct measurement using a reference meter

Capability

With Calibration and measurement capability of-

Incandescent lamps;
1.0% in luminous intensity for incandescent lamps;
with or without broadband filters;
1.3% in luminous intensity for other incandescent sources;
from 0.01 cd;

Other sources;
 1.3% in luminous intensity;
 from 0.01 cd;

Luminous flux Direct measurement by integrating sphere

Incandescent lamps;

Light sources with maximum dimension (excluding cap)
not exceeding 0.3 m;

From 0.5 lm;

Other sources;

Light sources with maximum dimension (excluding cap)
not exceeding 0.3 m;

From 0.5 lm;

Capability

With Calibration and measurement capability of-

Incandescent lamps;
2.0% from 1.5 lm;

Other sources;
2.5% from 1.5 lm;

Discharge sources - Lamps; Integrating sphere sources; LED sources; Luminance standard sources; Solid state lighting (SSL) sources Luminance Direct measurement using a reference meter

Capability

With Calibration and measurement capability of-

Incandescent sources, with or without broadband filters;
1.5% or 0.01 cd.m-2 (whichever is the greater) from 0.1 cd.m-2;
Other sources;
2.0% or 0.01 cd.m-2 (whichever is the greater) from 0.1 cd.m-2;

Filters Transmittance Comparison with a reference meter

Capability

With Calibration and measurement capability of-

Broadband transmittance;

0,01 with incandescent lamps;

Spectral transmittance;

Transmittance in the UV-VIS spectrum 210 nm to 830 nm;
 0.0004 + 0.0014t + 0.1Δt/Δλ for transmittance between 1.00 and 0.01;
 7.5% of transmittance for transmittance between 0.01 and 0.001;
 10% of transmittance for transmittance between 0.001 and 0.0001;
 12.5% of transmittance between 0.0001 and 0.00001;
 20% of transmittance between 0.00001 and 0.00000005;
 Transmittance in the infra-red spectrum 700-3000 nm;
 0.001+ 0.002t + 0.2Δt/Δλ;

0.3 nm in wavelength of spectral transmittance features 
Focimeters Prismatic power; Refractive power Measuring angular deviation using optical methods

Capability

With Calibration and measurement capability of-

0.01 m⁻¹ in refractive power in the range -0.25 to +0.25 m-1 ;
 0.015 m⁻¹ in refractive power in the range -25 to +25 m-1 ;
 0.01 cm.m⁻¹ in prismatic power to 20 cm.m-1 ;
 1° in axis;

Incandescent lamps Distribution temperature Direct measurement using a reference spectrophotometer

Capability

With Calibration and measurement capability of-

15K in the region of 2856K;

LED sources; Solid state lighting (SSL) sources Spectral radiant flux To be determined

Capability

With Calibration and measurement capability of-

Spectral radiance;
0.7 nm in wavelength;
3.3% at 380 nm falling to 1.0% at 555 nm and rising to 1.8% at 780 nm in spectral radiance;

Lenses Prismatic power; Refractive power Measuring angular deviation using optical methods

Capability

With Calibration and measurement capability of-

0.01 m⁻¹ in refractive power in the range -0.25 to +0.25 m-1 ;

0.015 m⁻¹ in refractive power in the range -25 to +25 m-1 ;

0.01 cm.m⁻¹ in prismatic power to 20 cm.m-1 ;

1° in axis;

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

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