Versatile luminous flux and radiant power measurement system for LED luminaires

GL Opti Sphere 1100 integrating sphere

Luminous flux of LED modules and luminaires

GL OPTI SPHERE 1100 integrating sphere system has been designed for the luminous flux measurement and radiant power of mid-size LED luminaires and large LED modules, as well as other light sources compliant with the recommendations of the CIE Technical Committee published in the CIE 127:2007 Technical Report. It is the ideal solution for growing LED lighting manufacturers that do not have the space or budget for a 2M or 3M sphere.
This easy to use and complete integrating sphere system conforms to CIE S025 standard and American LM79 and other international standards. With a side-opening system that facilitates the easy installation of a variety of light sources, the GL OPTI SPHERE 1100 gives you full measurement flexibility that conforms to CIE recommendations. As with all integrating sphere options, the GL OPTI SPHERE 1100 can be paired with any of our spectrometers and software tools to deliver the measurement system you need.

Mount and measure

By default, this integrating sphere system comes equipped with a mechanical stage that can be adapted to mount many different fixtures and LED module types. An optional lamp post installed in the center of the sphere makes it easy to install different A type products. Any of our high-performance spectrometers can connect to the sphere and is automatically detected by the software. Load the lamp, and let the software do the rest.

Adaptable to your needs

With a wide range of spectrometers and accessories available for the GL OPTI SPHERE 1100, you can select the best spectral range and features to fit your budget and technical requirements. Combine with our powerful GL SPECTROSOFT software and GL AUTOMATION add-on, to have a completely turnkey test station that anyone can use to obtain accurate and repeatable results.

Accelerate product development

This integrating sphere system is still small enough to be installed in an office or production floor space allowing R&D departments and engineers quickly and accurately measure lighting components onsite. Sending lamps and components for testing in the lab means long lead times and ultimately slows down the development cycle. Now, when new fixtures are delivered or a new board is fabricated the results are available immediately.


Measure. Launch. Grow.

The rapidly expanding LED retrofit lamp market demands quick & reliable solutions to test & measure small to medium-sized LED fixtures. Everything from downlights to small strip lights and LED modules. GL OPTI SPHERE 1100 integrating sphere system was designed to meet this need and delivers complete optical measurement of LED retrofit / replacement lamps.
GL OPTI SPHERE 1100 integrating sphere system is a tool that can deliver exceptional luminous flux and color accuracy without the operational complexity associated with other photometric test equipment. A dedicated metrologist or large dark lab are not required. Setup the system and start evaluating your lamps in no time. Our customers appreciate that you can just open the sphere, install the lamp inside and measure. This sphere is equipped with all accessories and components you need and our GL SPECTROSOFT software interface will help you to do it right.

A laboratory of your own

This integrating sphere system is equally suited to accredited laboratory environments, production labs or in R&D for quick quality control. When using external labs becomes too expensive or time-consuming, the GL OPTI SPHERE 1100 is an excellent first step into the field of professional test and measurement.

Instant customized reports

Install, measure and prepare customized report directly from our GL SPECTROSOFT suite. This analytical software will control the measurement instrument, auxiliary light source and optionally manage peripheral devices like programmable and stabilized power supplies or TEC controllers. All these can be included in one complete measurement report.

GL OPTI SPHERE 1100 Features

Side-opening system

The size of the integrating sphere and the side-opening system facilitate the easy installation of a variety of light sources using additional adapters or holders, allowing full measurement flexibility.

High durability and low weight

Conforming to CIE recommendations, front emitting diodes can be measured at the wall entrance in 2π geometry while other types of LEDs or other sources with wider emission are measured at the center of the sphere in 4π geometry. The integrating sphere is made of a composite material which guarantees high durability and low weight.

Specially designed 168mm entrance aperture

The entrance of the integrating sphere is equipped with a specially designed 168 mm entrance aperture which can be used for calibration purposes. Additional accessories can be installed as required by specific measurement scenarios. In order to obtain top measurement accuracy, the GL OPTI SPHERE 1100 has been equipped with an auxiliary light source to compensate for the self-absorption effect of the test LED.

GL OPTI SPHERE 1100 Metrics

Integrated quantities

  • Total Luminous Flux [ lm ]
  • Radiant power [ W/nm ]
  • Total photon flux
  • PBAR and more.
  • Colorimetric quantities

    • Correlated Color Temperature – CCT and Duv
    • Color Rendering Indices – Ra, CRI, R1 to R15, TM-30
    • Fidelity index Rf
    • MacAdam ellipses.
    • Binning
    • Color coordinates

    Optional quantities*

    • Luminous efficacy [lm/w]
    • Power factor
    • Temperature Tp Tamb etc
    *require optional peripheral devices please inquire here

    GL OPTI SPHERE 1100 Specifications

    Luminous flux and radiant power measurement of large LED modules and luminaires.
    Spectral range*340 – 1700 nm
    Sphere inner diameter1100 mm
    Entrance aperture diameter168 mm
    Sphere materialComposite
    Inner coatingBarium Sulfate (BaSO4) high-reflectance material (R98)
    Outer coatingBlack finish
    Reflectance properties97%
    Auxiliary light sourceWhite LED
    Spectrometer portDirect connection or SMA fiber-optic
    Standards complianceCE, LM 79, CIE 127:2007 CIE S 025/E:2015
    Maximum DUT dimensions in accordance with CIE S 025/E:2015100 mm (diameter or diagonal)
    Maximum dimension for optimal measurement (1/3 x sphere diameter)330 mm (diameter or diagonal)
    Maximum DUT weight3 kg
    Sphere frameHinged
    Sphere center positioningN/A
    Mechanical breadboard with postFor 4π measurement
    USB source controller for auxiliary light sourceWith current source and relay switch for external power supply
    Universal post with standard lamp socketsUniversal DUT fixing table (breadboard) for measurement in 4π geometry
    External dimensions [W x H x D]1260 mm x 1800 mm x 1220mm
    Weight60 kg
    *Spectral range of the coating. Actual spectral range of system may be reduced due to limitations of used optical accessory.
    Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.
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