Improve Productivity with Ultra-fast and High-precision Measurement


The Hioki TM6101 is an optical characteristic measuring instrument geared for the production lines of white LED and LED lighting devices. Based on Hioki’s proprietary filter spectroscopic measurement method, the LED optical meter measures optical characteristics such as luminous intensity, chromaticity and color rendering index of white LEDs with ultra high accuracy and offers a faster speed of measurement compared to a high-precision spectrometer.

Product Video

Key Features

  • Optical characteristic measuring instrument for white LED and LED lighting devices
  • High-precision filter system delivers high speed and high precision
  • Rapid measurement with approx. 5ms at its fastest
  • Stability of chromaticity values is within ± 0.0001 (3σ)
  • Influence caused by angle of incidence is within ± 0.001 for chromaticity values

Model No. (Order Code)

TM6101 For production line
Note: Can be connected to an integration sphere via a 1-inch port.

Basic specifications

Accuracy guaranteed: 1 year
Measurement items (1) Illuminance, Luminous flux, Luminous Intensity
(2) Chromaticity
(3) Color Rendering Index
(4) Correlated Color Temperature and Δuv
(5) Dominant wavelength and excitation purity
Measurement range [Illuminance] 5 lx to 100,000 lx
Applicable standard Compliant with special type illuminance measuring instruments* specified in Japanese Industrial Standard (JIS) C 1609-1:2006 Illuminance meters Part 1:General measuring instruments.
(1) Illuminance linearity*: 2 % ±1 dgt.
(2) Visible range relative special responsivity characteristics*: 1.5 %

*Terms translated into English by Hioki
English translation of JIS C 1609-1:2006 has not been published by Japanese Standards Association.
In the event of any doubt arising, the original standard in Japanese takes precedence.
Spectral responsivity characteristics of colour-matching functions Performance
Meets with tolerance limits specified as Table 1 (Tolerance limits to deviation of spectral responsivity of photo-electric colorimeter) in 5.2 Photoelectric colorimeter of JIS Z 8724:1997 Methods of colour measurement - Light-source colour.
Compensation Dark current compensation, Reference value compensation, (Illuminance, Luminous Intensity, Luminous Flux, Chromaticity)
Post-correction backup Saving of user correction values: Reference value correction values can be saved on the connected computer
Interfaces USB 2.0, Digital I/O (Input: External trigger, Output: End of measurement)
Optical detector [Incoming radiation diameter] φ 11.3 mm ±0.1 mm
Measurement function Control, Trigger function, Averaging, Auto-range function
Display Illuminance, Luminous flux, Luminous Intensity, Chromaticity, Color Rendering Index, Correlated Color Temperature, Dominant wavelength
Power supply AC Adapter 9418-15 (100 to 240 V AC, 50/60 Hz, 6 VA)
Dimensions and mass [Main unit] 210 mm (8.17 in) W × 30 mm (1.18 in) H × 135 mm (5.31 in) D, 1 kg (35.3 oz)
[Sensor unit] 70 mm (2.76 in) W × 39.5 mm (1.56 in) H × 172 mm (6.77 in) D, 550 g (19.4 oz)
Included accessories AC adapter 9418-15 ×1, USB cable ×1, Main unit/ sensor unit connection cable (2 m, 6.56 ft) ×1, Cap ×1, Connecting port connecting screws ×4, Ferrite cores ×3, Rubber feet ×4, Instruction manual ×1, CD-R (PC application software, Measurement library) ×1