MEASURE
any light source

Flicker-iP
Flicker Test Accessory
Quickly upgrade your illumia Plus System for flicker analysis®

Why flicker analysis is needed
The health effects of flicker are divided intovisible and invisible flicker. In the visible domain,frequencies in the range ~3 to 70Hz represent arisk of seizure in those with photosensitive epilepsy.
In the invisible domain, at higher frequencies,
migraines, headaches, eye strain and non-specificmalaise may result. Some SSL systems, particularly
those paired with dimming controls, demonstratesignificant photometric flicker. Now Labspheremakes it easy to measure flicker metrics on its
illumiaPlus Systems with Integral software.
®

Fast integration
The Flicker-iP integrates with Labsphere’s
illumiaPlus Light Measurement Integrating
Sphere Spectrometers. The sensor head mounts
on the 0.5 inch sphere port frame next to thespectral flux measurement port and then plugs
into the USB port of the photometry module.
Using Labsphere’s Integral hardware set feature,connect to the Flicker-iP and you are ready tomeasure your device. All measurements of lamps,
luminaires and fixtures are done when operated
in the illumiaPlus integrating sphere.

Advancing the Technology of Light: Measure. Create. Reflect.

Features and reporting• Selectable Sampling Rate
• Selectable Scan Duration (Measurement Period)• Selectable Recording Intervals• Lamp Light Output Periodic Frequency• Percent Flicker• Flicker Index• Stroboscopic Visibility Measure (SVM)• Short Term Flicker ( Pst )• ASSIST Flicker Perception Metric ( Mp )• Digital Exportable of RAW Data*• Fraction of Rated Light Output Integrated
over Measurement Period• Percent Amplitude Modulation
at Selected Frequencies• Precision Cosine Receiver• Robust Carry and Storage Case

*excluding Pst

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13069-000 Rev 02

Ordering Information
Model: Flicker-iP
Order Number: AA-01510-000
Includes: flicker sensor, condition electronics, mounting accessories,
Integral software, sensor head preamp, cabling, storage case,calibration certificate, instructions for hardware and software installationand operators manual

Specifications
Sensor:Broadband silicon photodiode diode filtered for Vl responsePhotometric Range:

380 nm to 780 nm

Input Optic:

Diffuser window

Cosine Response:< 9%

Sampling Rate Range:

Low: 10 Hz
High: 5000 Hz

Data Recording Rate:

5 kHz with internal sample rate of 20 kHz

Recording Interval:

0.1 to 0.0002 sec

Equipment Measurement Period Range:

12 seconds

Measurement Time Range:

120 ms to 12 s

Percent Flicker Range:

0 -100%Flicker Index:

Reported

Lamp Light Output Periodic Frequency Range:

0-2500 Hz

Stroboscopic Visibility Measure: ( SVM )Reported

ASSIST Flicker Perception Metric: ( Mp )Reported

Fraction of Rated Light Output Integrated
over Measurement Period Amplitude:

100%, 20% and minimum fraction of light output

Modulation Unfiltered:

At 1000 Hz, 400 Hz, 200 Hz, 90 Hz and 40 Hz cut off frequencies

Software:IntegralInterface:USB 2.0

Computer Requirement:

Integral Cube, PC or laptop with Windows 7 or newer

Cable Length: (from sensor to USB)

80 in (20.4 cm) + 2 m extension

Dimensions: (sensor head)

1.5 in diameter x 1.1 in (3.81 x 2.74 cm)

Weight:0.40 lbs  (0.18 g)

Mounting:

Mounts on Labsphere’s 0.5 inch integrating sphere port frame
8-32 mounting boss for benchtop use

Advancing the Technology of Light: Measure. Create. Reflect.

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13069-000 Rev 02

A: Maximum Value

Area 1

Area 1

B: Minimum Value
Area 2Flicker Metrics
Three metrics for the evaluation of flicker,•P ercent flicker,- 0-100% scale- Accounts for average, peak to peak amplitude
Percent Flicker = 100% x A - B
A+ B•F licker Index- 0 – 1.0 scale- Accounts for average, peak to peak amplitude,
shape duty cycle
Flicker Index =Area 1
Area 1+ Area 2•F licker frequency.

- 1/periods of cycles

Reference•N EMA 77-2017
Sample Screen Shots

Advancing the Technology of Light: Measure. Create. Reflect.

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13069-000 Rev 02