Broadband light meters for photometry

Comprehensive range of solutions for the measurement of illuminance (lux), luminance (cd/m²), luminous flux (lumens) and luminous intensity (cd).


Handheld/portable light meters for measuring photopic and scotopic illuminance (lux).

Illuminance
Model Image Usage Spectral function Typ. Range Minimum (*1) Typ. Range Maximum Input Optic / Size F.O.V. or Aperture Measurement Mode Interface Remark

X1 + VL-3704

X1 1+VL 3701 5.26 Mobile Photopic; f1 ≤ 5% 0.25 lx 50 Mlx Diffuser / 7mmØ Cosine; f2 ≤ 3% CW USB

X1 + VL-3701

X1 1+VL 3701 5.26 Mobile Photopic; f1 ≤ 3% 10 mlx 330 klx Diffuser / 7mmØ Cosine; f2 ≤ 1.5% CW USB Best selling DIN Class A illuminance meter suitable for measurement of white LEDs.

P-9710 + VL-3701

P 9710+RW 3705.23 Mobile / Benchtop Photopic; f1 ≤ 3% 2 mlx 330 klx Diffuser / 7mmØ Cosine; f2 ≤ 1.5% CW, Flash, Dose, Logger RS232 Precision photometric detector suitable for low intensities. Simple interchange of detcetor heads.(1)

P-9710 + VL-3707

P9710+Messkopfnlx Mobile / Benchtop Photopic <100 μlx > 80,000 lx Diffuser Cosine CW, Flash, Dose, Logger RS232 Very low light level photometer with wide dynamic range.

P-9710 + VL-3705

P 9710+RW 3705.23 Mobile / Benchtop Scotopic; f1 ≤ 5% 25 mlx 5 Mlx Diffuser / 7mmØ Cosine; f2 ≤ 3% CW, Flash, Dose, Logger RS232 Scotopic illuminance (1)

P-2000 + VL-3701

p2000 Benchtop Photopic; f1 ≤ 3% 2 mlx 330 klx Diffuser / 7mmØ Cosine; f2 ≤ 1.5% CW, Flash, Dose, Logger, Ratio RS232 / IEEE-488 2-channel meter for illuminance and additional UV or IR irradiance detector

P-9801 + 8x VL-3701

p9801 Benchtop Photopic; f1 ≤ 3% 2 mlx 330 klx Diffuser / 7mmØ Cosine; f2 ≤ 1.5% CW, Flash, Dose, Logger, Ratio, Trigger RS232 / IEEE-488 8-channel meter e.g. for uniformity measurements of flashlamps

P-9802 + 36x VL-3704

p9802 Benchtop Photopic; f1 ≤ 5% 0.25 lx 50 Mlx Diffuser / 7mmØ Cosine; f2 ≤ 3% CW RS232 36-channel measuring device e.g. for lamp aging test stands

(*1) Typ. Range Minimum SNR=50 100ms integration

See also: Spectral light meters for photometric and colorimetric measurements


Handheld/portable light meters for measuring luminance (cd/m2).

Luminance
Model Image Usage Spectral function F.O.V. Typ. Range Minimum SNR=50 100ms integration Typ. Range Maximum Measurement Mode Lens Interface Remark

X1 + LDM-9901

X1 1+VL 3701 4.26 Mobile V(λ), f1 ≤ 5 % 0.2 cd/m² 40 Mcd/m² CW 22 mm Ø USB Notch and Bead Sight, measurement distance 40cm to infinity.

X1 + LDM-9901 + VL-3702

x1 1 Mobile V(λ), f1 ≤ 5 % V(λ), f1 ≤ 6 % 1° Cosine; f2 ≤ 3% 0.2 cd/m² 10 mlx 40 Mcd/m² 330 klx CW 22 mm Ø Diffuser / 7mmØ USB Universal light meter for luminance and illuminance

P-9710 + LDM-9811 + PD-16-VL

ldm9811 Mobile / Benchtop V(λ), f1 ≤ 3 % V(λ), f1 ≤ 3 % V(λ), f1 ≤ 3 % 20' 1° 6° 1.7 cd/m² 0.17 cd/m² 5 mcd/m² 333 Mcd/m² 33 Mcd/m² 1 Mcd/m² CW, Flash, Dose, Logger 50 mm Ø achromat RS232 Precision luminance meter with adjustable focus

P-2000 + VL-3701 + VL-3701 with SRT-M37-L (1°)

srt37 Benchtop V(λ), f1 ≤ 3 % 4 cd/m² 830 Mcd/m² CW, Flash, Dose, Logger 22.4 mm Ø RS232 / IEEE-488 2-channel light meter for the synchronous measurement of illuminance and luminance

P-9710 + VL-3701 + VL-3701 with SRT-M37-L (2°)

vl3701s Mobile / Benchtop V(λ), f1 ≤ 3 % 1 cd/m² 200 Mcd/m² CW, Flash, Dose, Logger 22.4 mm Ø RS232 No focus adjustment

P-9710 + VL-3701 + VL-3701 with SRT-M37-L (5°)

vl3701s Mobile / Benchtop V(λ), f1 ≤ 3 % 0.17 cd/m² 33 Mcd/m² CW, Flash, Dose, Logger 22.4 mm Ø RS232 No focus adjustment

Portable and benchtop light meters with integrating sphere for measuring luminous flux (lumens).

Lumens
Model Image Usage Spectral function Entrance port Integrating sphere Typ. Range Minimum SNR=50 100ms integration Typ. Range Maximum Measurement Mode Interface Remark

X1 + ISD-5-VL

isd5l Mobile V(λ), f1 ≤ 5 % 12.7 mm Ø 50 mm Ø 0.2 mlm 8000 lm (*1) CW USB Compact luminous flux meter for cold light sources

P-9710 + ISD-10-VL

P 9710 2+ISD 5P Si.21 Mobile / Benchtop V(λ), f1 ≤ 5 % 15 mm Ø 100 mm Ø 0.1 mlm 20000 lm (*1) CW, Flash, Dose, Logger RS232 Precision luminous flux meter for cold light sources

P-2000 + ISD-15P-VL

p20003 Benchtop V(λ), f1 ≤ 5 % 38.1 mm Ø 150 mm Ø 0.2 mlm 40000 lm (*1) CW, Flash, Dose, Logger RS232 / IEEE-488 Precise luminous flux meter for cold light sources and endoscopes