The Optical Power Meter TM6104 evaluates the white balance of displays that use lasers by measuring centroid wavelength and optical power, which are key characteristics in the evaluation of laser light sources, using the proprietary Discrete Centroid Wavelength Method, a new technique for directly measuring the centroid wavelength and optical power of laser light sources. Applications include processes designed to adjust and inspect RGB lasers used in automotive head-up displays and head-mounted displays by measuring radiant flux (optical power), centroid wavelength, luminous flux, and chromaticity.


Key Features

  • Proprietary Discrete Centroid Wavelength Method for laser photometry
  • Cut adjustment time in half with white balance navigation
  • Measure up to 9 points on 12-inch* screen simultaneously
  • 12 inches: 4:3 250 mm × 180 mm (9.84 in x 7.09 in)
  • Modulated light function for displays with a wide color gamut
  • RGB laser module evaluation

A comment from the Good Design Award 2017

“Hioki invented the Discrete Centroid Wavelength Method for instruments used to measure laser light sources, a technology that promises to boost productivity in the manufacture of displays by speeding up the white balance adjustment process, which has previously required skill and experience. This award recognizes a waste-free, functional design that allows the instrument to be easily aligned with the laser’s optical axis from the side simply by aligning a mark on the enclosure with the beam.”

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement object Laser light
Note: Accuracy is guaranteed with a laser light source. Accuracy is not guaranteed with standard illuminant A (light bulb).
Measurement parameters Radiant flux (optical power), luminous flux, centroid wavelength

Tristimulus values XYZ, chromaticity (xy, u’v’), correlated color temperature, delta uv, dominant wavelength, NTSC ratio, white balance target value of radiometric quantity

Radiometric quantity Radiant flux (Optical power)
Measurement range 0.00001 to 130 [mW]
Relative accuracy N/A
Accuracy ±4.2% rdg. (473 nm, 0.1 mW), ±4.2% rdg. (532 nm, 0.1 mW), ±4.2% rdg. (632.8 nm, 0.1 mW)
Photometric quantity Luminous flux
Measurement range 10 μlm to 60 lm
Centroid wavelength measurement range Blue : 435 nm to 477 nm, Green : 505 nm to 550 nm, Red : 615 nm to 665 nm
White balance adjustment assistance functions (Set parameters) Target value of photometric quantity, tolerance of photometric quantity, target value of chromaticity (x, y), tolerance of chromaticity (x, y)
Interfaces LAN (TCP/IP) * A display is not available on the unit.
Power supply AC ADAPTER: Z1008 (100 V AC to 240 V AC, 9.5 VA)
Dimensions and mass 65 mm (2.56 in) W × 83 mm (3.27 in) H × 135.5 mm (5.33 in) D, 720 g (25.4 oz)
Accessories AC ADAPTER: Z1008 ×1, Power cord ×1, Light shielding cap ×1, LAN cable (3 m, 9.84 ft length), Instruction manual ×1, Application disk CD-R (RGB Laser Utility application program) ×1

Additional information






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  • Email: info@techsolsol.com
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