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Laboratory of Radiometry and Photometry

There are 5 staffs working at laboratory, including doctor (Dr.), master (M.Sc) and engineers
- Head of lab: Dr. Cao Xuan Quan (email: quancx@vmi.gov.vn)
- Lab. Address: Room 226, Building D, No. 8 Hoang Quoc Viet Street, Cau Giay District, Ha Noi
- Tel: +844 3756 6525     |     Fax: +844 3756 4260
- Email: quang@vmi.gov.vn; phongquangvmi@gmail.com

Verification capabilities of measuring equipment

Name of measuring equipment Range of measurement Accuracy
Illuminance (10 ÷ 20 000) lx ≥ 1,0 %

Focimeter

Vertex Power: (-20 ÷ 20) D
Prism Power: (0 ÷ 10) ∆
Cylinder Axis: (0 ÷ 180) ͦ
Prism Base Direction: (0 ÷ 360) ͦ

± (0,06 ÷ 0,25) D
± (0,125 ÷ 0,5) ∆
≤ 1 ͦ
≤ 1 ͦ

Calibration capabilities of measuring standard/ equipment

No Calibrated standard/ equipment Range of measurement Calibration and measurement capability

1

Illuminance Responsivity (10 ÷ 10 000) lx
CCT: 2856 K
1,0%

2

Luminous intensity

(1  ÷ 10 000) cd
CCT: (2500 ÷ 3200) K
1,0%

3

Illuminance meter

(10 ÷ 10000) lx
CCT: 2856 K
1,5%

4

Luminance Source

(10 ÷ 10 000) cd/m2
CCT: (2500 ÷ 3200) K
1,2%

5

Luminance meter (10 ÷ 1200) cd/m2
CCT: 2856 K
1,2%

6

Focimeter (Lens meter) (-20  ÷  20) D
(0  ÷  10 ) Δ
0,15 D
0,04 D

7

UV-Vis Spectrophotometer (200 ÷ 900) nm
(0 ÷ 2) Abs
0,34 nm
0,008 A

8

Eye Refractometer (-20 ÷  20) D
(0 ÷ 180 )o
0,14 D
3o

9

Luminous Flux (1 ÷ 10000) lm
CCT: (2500 ÷ 3200) K
1,8%

10

UV meter (10 ÷ 200) mW/cm2
(200 ÷ 10 000) mW/cm2
2,5 %
6,0 %

11

OTDR
(Optical Time-Domain Reflectometer)
(3 ÷ 20) km
1310 nm; 1550 nm
0,3 m

12

Elisa Reader (400 ÷700 ) nm 0,01 A

13

Spectral  Transmittance factor (0,001 ÷ 1,0)
(200 nm ÷ 900 nm)
0,1% ÷ 0,4%

14

Spectral Diffuse Reflectance factor (0,001 ÷ 1,0)
(380 nm ÷ 780 nm)
0,4% ÷ 1,1%

15

Standard Filter Set Wavelength
(200 nm ÷ 3000 nm)
Absorbance
(0 ÷ 6) Abs
UV/Vis: 0,1 nm
0,002 Abs
NIR: 0,35 nm
0,0025 Abs

16

White meter (380 nm ÷ 780 nm) 0,4% ÷ 1,1%

17

Color standard material (380 nm ÷ 780 nm)
X; Y; Z; x;y; CIELUV; CIELAB; UCS
0,005 ÷ 0,01

18

Optical Power Meter (-90 dBm ÷ +10 dBm) Wavelength
(800 ÷ 1700 nm)
3,0%

19

Laser Source (800 nm ÷ 1700 nm)
-15,0 dBm  ÷ +13 dBm
0,3 ppm

20

Attenuation, Optical Fiber 0,1 dB ÷ 20 dB
1310 nm ; 1550 nm
0,03 dB

21

Attenuation, optical fiber component 0,1 dB ÷ 20 dB
1310 nm ; 1550 nm
0,03 dB

22

Optical Spectrum Analyzer 1310 nm; 1528 nm ÷ 1562 nm
-20 dBm ÷ 0 dBm
0,011 nm

23

Laser Power meter 250 nm ÷ 3000 nm
5 µW ÷100 mW
1,5% ÷ 3,0%
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