Total Luminous Flux Measurement System
HM/FM Series

IESNA LM79 and LM-80 compliant measurement system
Measurement Items
  • Total luminous flux
  • Total radiant flux
  • SDCM
  • Chromaticity
  • Other
Features
  • Accommodates Maximum 2400mm fluorescent tube
  • ESNA LM79 and LM-80 compliant
  • Wide dynamic range thanks to high performance array spectrometer
  • Wide sphere diameter range between φ250 mm and φ3,000 mm
  • L-I-V, Pulse, PWM, Tem. Control (-40 c to+200 c) measurement are available
  • PWM (Pulse Width Modulation) applicable

Spectroscopic Characterization Instrument About the
HM/FM Series

IESNA LM79 and LM-80 compliant measurement system

Features

  • Accommodates Maximum 2400mm fluorescent tube
  • ESNA LM79 and LM-80 compliant
  • Wide dynamic range thanks to high performance array spectrometer
  • Wide sphere diameter range between φ250mm and φ3,000mm
  • L-I-V, Pulse, PWM, Tem. Control (-40c to +200c) measurement are available
  • PWM (Pulse Width Modulation) applicable
HM/FM Series features

Measurement Items

  • Total luminous flux〔JIS C 7801:2009 / JIS C 8152:2007〕
  • Total radiant flux(Spectrum)
  • SDCM
  • Chromaticity(u, v)〔CIE 1960UCS〕
  • Chromaticity(x, y)〔JIS Z 8724:1997〕
  • Chromaticity(u', v')〔CIE 1976UCS〕
  • Color Temperature & Duv〔JIS Z 8725:1999〕
  • Dominant & Purity 〔JIS Z 8701:1999〕
  • Color rendering index(Ra, R1~R15)〔JIS Z 8726:1990〕

Specifications

Optics

Integrating Hemisphere*1
(HalfMoon)

φ250、φ300、φ500、φ1000、φ1650、φ2000、φ3000 mm

Flux standard lamp

<5 W, <5 V, Approx. 50 lm

Self absorption correction lamp

<5 W, <5 V, Approx. 50 lm

Lamp power

± 0.1 %,± 2.0 mA

Lamp switching box

Flux standard lamp and self absorption correction lamp is switched ON/OFF with one lamp power supply.


Array spectrometer
Wavelength range

360 nm to 1100 nm*2


*1: Ask for other sizes
*2: Can be chosen from several models

HM series

Total Luminous Flux Measurement System HM series

●Features

  • Lighting direction is changeable, making actual lighting position attainable.
  • No self absorption error because only the illuminant is located in the integrating sphere.
  • Double sensitivity compared with conventional integrating sphere
  • Best suitable for surface illuminant (2pi light source)
  • Fixture is located outside hemisphere, making sample temperature control easy. (High brightness light source)
  • Suitable for big lighting device since the shadow of device itself can be minimally eliminated.(Device size up to one third of sphere diameter)

●System Configuration

FM series

Total Luminous Flux Measurement System FM Series

●Features

  • Accommodates Maximum 2400 mm fluorescent tube
  • Self absorption correction function

●System Configuration

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