Photometry
redefined
Modern lighting quality standards require full characterizationof LED modules, lamps and luminaires, including photometric andcolorimetric measurements along with temperature and electrical
power measurements. GL Optic supports lighting companies andtesting laboratories with high performance instrumentation for acomplete light quality control.

GL GONIO SYSTEMSGL GONIO SYSTEMS

4First get to know us better

6

Choosing the best goniometersystem for your needs

10

6 things making GL Gonioa unique solution

12

GL SPECTROSOFT
The brains behind our systems

14

GL System
Optimized for each application

16

GLG 30-1800 Large system20

GLG 4-500 Light Goniometer Table top

24

Quality, Price & Support

26

Technical data

GL GONIO SYSTEMS

Table of contents:

GL OPTIC IS A FULL-LINE MANUFACTURER
OF COMPLETE INSTRUMENTATIONFOR PROFESSIONAL SPECTRAL
LIGHT MEASUREMENTFirst get to know
us better.
At GL we believe that the true quality innovation
is about the best technology and not aboutgadget functionality. This is why we encourage all
potential customers to choose quality instruments
for their lighting product quality control.

Our instruments feature automatic dark current
compensation combined with a temperaturemonitoring system which allows everyone to use
the system whenever and wherever they needdependable data.

There are many light meters available on themarket today but we know what matters mostfor fast developing lighting manufacturers:
engineering, precision, performance and, equallyimportant, independence from external quality
testing labs. For many manufacturers thepossibility of optimizing product quality and faster
prototyping are advantage factors helping themto win the market share.

The unique plug-and-measure concept by GL
features the RFID codes helping to automatically
get the calibration files for each available accessory
and allowing quick, easy and precise measurementsof different lighting quantities. Changing from lux
to lumen and even luminance values is as easy aschanging the available accessories. Leave it to thesystem to take care of the rest.

Unlike mass produced devices, GL instruments
are individually calibrated for the end user allowing
for accurate and dependable results and helping
to make the right product quality decisions.

GL GONIO SYSTEMS
4

YEARS

10
2009
– 2019Origins

At GL we design, manufacture and support light quality control systems
that help modern lighting companies develop their products fasterand better by using the knowledge, technology and expertise which isbuilt in every light measurement instrument we provide. With the use of
our instruments and software lighting companies get control over quality
from the moment of components purchase through the research anddevelopment stage up to the final product testing.

“The ultimate light quality
control systems available
only for best lighting quality
product manufacturers”

GL Optic was established in 2009 to develop and bring innovative
solutions in light measurement. Since its establishment GL Optic has
been growing, developing products, setting industry standards andexpanding sales all over the world.
Nowadays GL Optic is at the stage of developing R&D centre andexpanding its services. The company is finalizing the constructionof a new photometric laboratory equipped with Poland’s first black
body (BB) model, the first primary standard radiation source inCentral Europe.

Our Leadership Team
Michael Gall

Miko Przybyla

Jan Lalek

CEO of Just Normlicht

COO of GL Optic

CTO of GL Optic

co-founder of GL Optic andan open-minded entrepreneurwith many years of experiencein lighting technology for visualcolour assessment.

a partner, light quality
enthusiast and headof GL business development
and operations.

co-founder of GL Optic − physicist
and optical engineering expert,
passionate about colorimetry,
optics and modern technology.

office@gloptic.com
www.gloptic.com

Choosing the best
goniometer systemfor your needs

HOW TO ORGANIZE
A MODERN PHOTOMETRIC LABORATORY?
(first published by Miko Przybyła in LED Lighting Magazine)

Selection of the goniometric system
Many manufacturers of lighting products use external measurement laboratories to verify compliance with standards and assess performance.
Some manufacturers or importers rely solely on their suppliers’ datasheets and try to avoid having to carry out measurements on their own.
This situation is quite common not only among small start-ups but also larger lighting companies in many European countries and beyond.

This situation is due to the low awareness of how much the parametersof the components differ from the functional parameters of the finishedlighting product. Apart from that, paradoxically, many times higher capital
expenditures are made on the organization and equipment of production
departments, and it is difficult to find appropriate funds to finance theimplementation of quality control while at the same time manufacturers
find it impossible to verify what is actually delivered to customers.

and differ in the way the luminaire is rotated during measurement and in
the system of photometric data obtained during such measurements.

Why it is worthwhile
to have an in-house laboratory?
This trend has recently changed and the need for in-house verificationof product quality and laboratory or in-house quality control within
the company is increasing. This is due to the increasing competitionin the market and the need to optimize products and look for unique
technological solutions. Moreover, with the multitude of different productsin the manufacturer’s catalogue, sending luminaires and components
for testing to an external laboratory becomes time-consuming and even
too expensive. Regardless of the size of the company and its businessprofile, more and more companies decide to build their own photometriclaboratory in order to verify the quality of their products, compare themwith the competition and better select quality components purchasedfrom different suppliers. This approach has many advantages: it supports
the sustainable development of the company and strengthens its market
position. Companies with their own measurement facilities make fewer
mistakes at the design and product introduction stage, can better selectcomponents and suppliers. In addition, companies are able to react
more quickly to changing technology, the know-how remains within
the company and a lasting advantage over the competition is built,
and the company’s value increases.

Type AThe luminaire is rotated in horizontal axis around its base,dividing the space into horizontal planes. Each of theseplanes is then divided in radial arrangement by rotation
around vertical axis.It is most often used for measuring
car lamps.

Let us begin the discussion on the organization of an in-house photometric measurement laboratory with the proper selection of an appropriategoniometric system. What types of goniometers are available and which
ones should be used in the measurement of lamps and luminaires for general lighting purposes, and which ones in the measurement of technicallamps and illuminators? What are the ways of measurement and whatvalues can be measured? In addition, we will analyze the measuring
equipment necessary specifically for the characterization of LED products.
We will also describe the requirements and suggestions for the preparation of the laboratory room.
Types of goniometers used in photometry
Different types of goniometers are available on the market; they are
distinguished by their geometry of measurement, i.e. how photometricdata are collected and how the measuring system is implemented in amechanical sense.
Types of goniometers can be basically divided into groups 1, 2 and 3, described in detail in CIE 70 of 1987.[1] These types are also called A, B and C
1

GL GONIO SYSTEMS6

CIE 70-1987 The measurement of absolute luminous intensity distribution.

Schematic drawings and a description of the different types are shownin Figure 1.

Type BThe luminaire is rotated in horizontal axis around its
photometric centre, dividing the space into horizontal
planes. Each of these planes is then divided in radialarrangement by rotation around vertical axis.
This type is used to measure displays, signal lamps andtechnical lighting.
Type CThe luminaire is rotated in C-axis perpendicular toluminaire’s luminous surface, dividing the space to planesof radial arrangement. Each of these planes is then radiallydivided by rotation around gamma axis that is parallel
to luminaire’s luminous surface. Both axes cross inphotometric centre of the luminaire. This type isrecommended for the measurement of lamps andluminaires for general lighting purposes.
Fig. 1. Types of goniometers

For photometric measurements of products intended for general lighting
purposes it is recommended to use a type C goniometer. Goniometers A
or B, on the other hand, are most often used in the measurement of car
lamps, projectors and signal lamps in land transport and aviation.
It is worth mentioning that there are also different designs of C-type
goniometers. When measuring gas discharge lamps, the position during
measurements must be identical to the working position of the luminaire,
because the change in the position of the light source significantly changes
the level of the light output – lumen (total luminous flux). For this purpose,goniometers with movable measuring arm or goniometers with mirror
modes are used. Both of these solutions are very expensive and requirevery large laboratory rooms in order to ensure a suitable minimum distance for photometering - which will be discussed further below.
When measuring LED lamps and luminaires, goniometers rotating theluminaire are most frequently used, and the measuring device is located at

office@gloptic.com
www.gloptic.com

a fixed, sufficiently distant point. The operating position of a light-emitting
diode does not fundamentally affect its performance and efficacy. There
are only differences due to the different heat dissipation by the radiator,
which can result in a decrease in light output. However, the differencesin the readings of the luminaire’s flux values depending on the positionof the luminaire are usually just over 1 to 3% and can be compensatedby using an appropriate measurement procedure and corrections madeto the measurement results in accordance with the recommendations ofinternational recognized standard CIE S025 E:2015.

different sizes in the measuring axis. Advanced swivel connectors allow
the power supply and measuring circuits to be supplied directly near themounting plate without the risk of entanglement of the power supply cables when the luminaire is rotated. The figures below show a type C-type
goniometer with three mechanized axes and a schematic diagram of how
to create goniometric files for a typical luminaire (Fig. 3).

Special requirements for LED measurement
LED measurement is not only related to photometric values such as light
distribution curves [cd] or the calculation of the total luminous flux [lm].
For the full characteristics of LED products it is necessary to ensure appropriate power supply conditions and measurements of electrical quantities.
Therefore, with such a comprehensive approach to measurements in acomplete measurement system, it is worth taking into account programmable and stabilized laboratory power supplies. In addition, the requirements for ambient temperature measurement can be implemented byincluding sensors for temperature recording in the system. All this can becontrolled by a single software interface to control optical, electrical andtemperature measurements. This makes it easier to ensure appropriate
working conditions and to prepare comprehensive measurement reports
in accordance with the latest guidelines of international standards.

Far-field goniometers
versus near field goniometers
All goniometers are used primarily to collect photometric data, i.e. theso-called LID diagrams (luminous intensity distribution) that represent the
spatial distribution of light [cd] of the source. These data characterize aluminaire or a source and are necessary for the purpose of lighting projection with the use of light design software.
The straight forward way to calculate the value of light intensity [cd] is using the lux values and distance, therefore most often far-field goniometers
are used. Such a measuring system assumes the placement of a measuring device distant from the source at such a distance at which the shapeand dimensions of the luminaire are not important and it is measured asa point source. The appropriate distance is the so-called minimum photometric distance, i.e. the distance for which the inverse of the square law istrue. When determining the minimum photometric distance, it is advisable
to follow the recommendations of CIE standards, which suggest a distanceof 5, 10 or 15 times the size of the luminaire’s illuminating surface. Thus,
with a luminaire size of 1 m, the minimum distance should be 5 m forluminaires with wide distribution and soft LID shape. For luminaires withnarrow distribution, measurements from a distance of 10 m are suggested, and for specific luminaires with directional distribution measurements from a distance of 15 m are suggested (Fig. 2).

Fig. 2. The photometering distance depends on the size of the luminaire.

For luminous intensity calculations based on luminance [cd/m2] of theluminaire near-field goniometers are used, which most often employ
imaging luminance meters located at a short distance from the tested
source; they measure the luminance of the illuminating surface at different
angles. Such a solution is currently not recommended for the measurement of absolute photometric values in luminaires and is most often usedin the case of testing displays or technical illuminators.
Modern implementations of goniometric systems will use fully programmable, computer-controlled mechanical-electronic systems. The use of
servo motors with absolute encoders in the drive enables precise control
and reconstruction of the goniometer position. In addition to the control
of both the C and gamma axes, systems with motorised Z axes are alsoavailable, allowing for convenient positioning of different luminaires of

GL GONIO SYSTEMS
8

Many important decisions should be made well before the purchase ofmeasuring equipment. Moreover, at the installation and training stage,
many questions arise, especially from people who will be trained in theoperation of the system. It often happens that they do not have any experience in photometric measurements. During the use of the equipment,
there may also be many new questions or issues to be solved, and it isworth having the opportunity to receive appropriate support and possibly
training from the manufacturer.

Fig. 3. Type C goniometer with three mechanized axes and schematic diagram of creating
goniometric files for a typical luminaire.

Preparation of the room
As it is easy to notice, the size of the tested luminaire with far-field goniometers recommended for measurements of luminaires has a significant
impact on the size and location of the laboratory room. When deciding on
the location, the minimum working area of the goniometer, the length of
the room and the space for the operator should be taken into account. A
working area of 2.5 x 2.5 m should be provided for a typical 1.5 m or 1.8
m long goniometer for luminaires. The length of the room, dependingon the size of the tested luminaires, should be from 7 to 10 m, and insome cases even 15 m. When planning the location of a room, it can bepredicted that the distance between the luminaire and the device ona tripod will usually be 10 m. When measuring larger luminaires, which
are rarely measured, if possible, we move the tripod with the measuring
device to an adjacent room or set it up in a corridor. Such solutions work
well in many large companies and even accredited laboratories all over
the world.
Of course, according to the recommendations of the standards, themeasuring room should be dark, without access to daylight (during measurements) - walls, ceiling and floor covered with material or paint with alow reflection index (black or graphite). The room should be free of dust,
vibrations and a stable temperature of 25°C and air movement should notexceed 0.25 m/s. Professional goniometric systems are equipped with ameasuring head with a tube limiting the so-called stray light, i.e. unwanted
light reflected from elements and surfaces of the laboratory, which could
be measured by the measuring system. Thanks to this solution, no additional partitions (baffles) between the luminaire and the measuring device
are required. The tube is equipped with specially designed elements
limiting the influence of diffuse light and limiting the viewing angle of themeasuring head. In practice, this means that it is possible to work in thedarkroom at the operator’s workstation with illuminated workstation andthe blackening can be limited to the work area of the goniometer and thesurface directly behind the goniometer.
When choosing a goniometric system supplier, it is worth paying attention
to the technical support that can be provided by the manufacturer.

Unlike traditional goniophotometers, modern goniometric systems use
spectroradiometers, which can be calibrated to measure absolute photometric values and to measure colorimetric values simultaneously. Due totheir specific construction, LED lamps and luminaires should be measured
using a spectroradiometer, which can provide appropriate, accurate
measurement data for chromatic coordinates x, y, Duv index, correlated
colour temperature, colour rendering indexes Ra and CRI. In addition,
LED products can have different colour temperature depending on theangle of illumination, and the use of the spectroradiometer in combination
with the goniometer, i.e. goniospectroradiometer, allows determining theangular uniformity of colour according to the recommendations of the CIE
standards incorporated into European standards EN 13032-4:2015-09 and
IES LM 79.
Electrical measurements
The choice of power supplies and electric meters should be dictated by thetype of products to be measured. End products, ready-to-use LED luminaires or LED lamps for retrofitting require testing in conditions similar to
those in which they will operate in a ready-to-use lighting installation. This
usually means working with alternating current with different voltage andfrequency ranges. For this reason, it is important to be able to simulatedifferent operating environments with a single power supply.
At the LED product development stage, manufacturers are forced to test
individual components individually to check their impact on the finishedproduct. In this situation, testing will require the use of DC power supply,
less often alternating voltage.
Laboratory DC power supplies are able to provide the exact current
required using automatic voltage regulation, which in the final operating
environment of the finished product will depend on many factors that are
difficult to control.
As with standard electrical measurements, the influence of the entire
electrical circuit must be taken into account. Each power cord of the test
sample has its own resistance and causes a voltage drop. It is worth taking
care of cable distribution, not only taking into account the safety and comfort of operation, but also the voltage drop. This requirement increases

with higher current values, which can be reduced by using thicker andshorter wires with lower resistance.
The most professional approach to the problem described above consists
in doubling the measurement functionality by using - apart from power
supplies - also a dedicated power meter. A suitable meter can work withalternating and direct current over a wide range of voltages and frequencies with accuracy even greater than in the case of power supplies.
In addition, such meters include a wider range of electrical parametersthat allow you to meet the requirements of separate electrical tests. The
biggest advantage of the additional use of a separate power meter is thatit can measure the voltage directly at the sample, thus eliminating theimpact of voltage drop on the entire supply circuit. This is where the design of modern goniometers can be used to provide additional supply andmeasurement circuits near the mounting plate on the goniometer column.
Additional functions
With a large number of luminaires, time is the most common problem
in photometric laboratories. New designs of goniometers may allow for
so-called on-fly measurements, i.e. without stopping the goniometer
after setting the arm at a particular angle. In this variant, the luminaire isrotated in a given position (plane) in a uniform manner, and the fast measuring system collects a large number of measurements from the whole
range. Thanks to the readings from the encoder, the computer programassigns the measured value to the preset grid of measurement steps. Thisrequires a very fast measuring system.
For optimal use of laboratory space and ease of use, it is advisable toconsider installing additional slides (rails) for smooth adjustment of the
tripod with the measuring head along the measurement axis. For the measurement of small objects with a small flux, the measuring distance can be
reduced without the need to set the measuring axis.
It is worth remembering that different formats of photometric files areused on the European market and beyond. Currently, the most popular are
EULUMDAT (European format), IES (American format) and IEC format files
used in some industries and in various regions of the world. For this reason, the software supporting measurements, reports and file formatting
should be universal. It should also be possible to freely import and export
photometric data and combine measurement files and photometric curves
from different measurements.
Calibration of the entire goniometric system is not necessary and is notpracticed. If a spectroradiometer or photometer is used, the measuring
device itself must be calibrated. The manufacturer should provide afactory calibration certificate or, if requested by the customer, a calibration
certificate from an accredited laboratory.
Summary
Let us remember that the choice of the right equipment is very important, but this is only the beginning. It is worthwhile to start planning the organization of the in-house laboratory in good time andtake into account additional organizational and logistical aspects.
We should also remember to prepare and train our staff – to thatend it will certainly be helpful to choose a supplier who will not only
sell the measuring equipment, but who will also be able to provide
appropriate support at all stages of the process.

office@gloptic.com
www.gloptic.com

ACCESSIBLE,
EASY-TO-USE
AND RELIABLE
Competitive lighting market demands
faster prototyping, better optimizationand improved time-to-market.
If your company is introducing many lighting products and wants to stayahead of competition offering best technology solutions, then GL Gonio
Systems are the best choice for your lighting products quality control.
These premium instruments provide the best lighting companies withphotometric data about their own products.

6

things making GL Gonioa unique solution

Invest in premium photometry instrumentation and start using
the quality of your products to win market share and build yourcompetitive advantage.
Luminous Intensity Distribution (LID)+

Spectral Power Distribution (SPD)TIME FORA GONIO SPECTROMETER
LED and other modern lighting systems require bothphotometric and colorimetric evaluation. GL Optic was
one of the first system providers to combine a gonio set
with a spectroradiometer for full characterization. Whenyou have many lamps and luminaries to test, it becomes
expensive and time-consuming to continue sending
lamps to an external laboratory. Now not only can you
control this process yourself, but you can save time andmoney while also build up important knowledge inside
the company.

GL GONIO SYSTEMS
10

1
2
3
4
5
6

User friendly interface
helping you to get thedata in no time

Mechanical stability
and size to handle multiple
lighting products

Quality gears andabsolute encoders forsuperior repeatability

Laser alignment tooland manual controller
simplifying the process

Cable management androtation connectors for
instant power supply

Accessible

office@gloptic.com
www.gloptic.com

GL SPECTROSOFT

The brains behind
our systems

Intuitive,
clear and easy

Usually little is mentioned about the software
when competitive gonio systems are described.

One software interface to program, monitor
and manage a complete measurement system.
Starting from power supply through the stabilization
process up to the final results and reporting.

At GL we believe that it is of key importance to first check and then to buy.
Make sure how you get the control of the instrumentation during
your measurements.
Don’t forget that it is the user friendly interface that will makeyour life easier and help you appreciate the high quality of the
instruments.

SPECTRORADIOMETRIC DATA
The default system uses a calibrated spectroradiometer for full photometric and colorimetric characterization of DUT*.Spectral data are stored in the softwareand the LID** data are put on the table.
Additionally a Total Luminous Flux calculation is madeat the end of the measurement process. UV and IR
optical radiation distribution measurements areavailable with GL SPECTIS 5.0 touch.

EASY TO NAVIGATE

Our software is built for the operator and it will take short time to get the measurement process done if
all you want is photometric files . With flexible import and export functions you can get the files in any
available format IES, LDT, IEC ...

ADVANCED TOOLS

If you are looking for more advanced product testing and measurements in accordance with international
lighting standards you will find everything you need for a professional laboratory work. Unlimited data
capture options and peripheral devices integration are available.

FLEXIBLE AND
CUSTMIZABLEREPORTSOur RTF reporting system allows the user to create custom report templates and save them as defaults for
future use. Simply open the document in any editor and prepare the layout of your company’s reports by
including your company logo, fonts and colours in line with your company identification system. You caneven upload photos of your lighting products and include selected measurement data.

LIFETIME
LICENCE POLICYAll GL customers are provided with a lifetime software license and can be sure to get continuous accessto the latest software versions available for download online. Simply download the latest version of thesoftware form the link and enjoy using our tools.

POWER MEASUREMENTS

ONLINE SUPPORTExtended measurement of electrical power is available
with the use of additional connections to include fullelectrical testing in the measurement report compliant
with Energy Star and Eco Label Design requirements.
This can include optional harmonics and high resolution electrical measurement data.

We offer continuous online support for end users worldwide. 95% of support calls can be resolved quickly
by remote support sessions provided by our highly educated and experienced support engineers. If you
need technical assistance, please complete the form available on gloptic.com/support and we will get backto you as soon as possible.

MULTIPLELANGUAGES

Being a European manufacturer, GL Optic offers GL SPECTROSOFT in many languages, e.g. English,
German, French, Italian, Polish, Russian, Chinese, and more. Please contact us to make sure your native
language is available.

DIFFERENTSOFTWARE
LICENCE LEVELSGL SPECTROSOFT is available in different software license levels to meet the demand of the end user.
Starting with entry level BASIC configuration through the professional software license up to the laboratory
license level. You can also pick and choose from the available Add-Ons and tools. Please see the tablefor details.

COMPLIANCE& UPDATESWe are always up-to-date with the latest international, European and American lighting industry standards
and market requirements. We follow up CIE, IEC and IES standardization committees to include the latest
metrics in our software. We are also open to suggestions from our end users to make our software a useful
analytical tool for specific applications.

NEW FAST PHOTOMETER + FLICKER
This new optional instrument can be used for fast
on-fly measurements combined with optical flicker
characterization of DUT*. The software includes all thelatest flicker metrics according to EU and US standards.

MECHATRONICS CONTROLPOWER SUPPLIESThe software is automatically controlling mechanicalgears offering free selection of the number of steps
and angles available for both C and Gamma axes+/- 180 deg. Choose from existing templates or create
an individual measurement grids for your lamps.

A programmable and stabilized power supply canbe controlled using single user interface simplifying
measurement procedure and saving time.

ABSOLUTE ENCODERSEach motor is equipped with absolute position encoders
which communicate with our software to improve angle
accuracy and alignment. Relative positioning available inentry level systems with step motors is not sufficient fora laboratory repeatability of the system.

AUTOMATIC BACK-UPTEMPERATURE CONSIDERATIONS

During the entire measurement process the software saves data files
automatically. Back-up files allow for repetitions so measurements can becontinued from an individually selected point to a complete measurement
procedure.
Very helpful tool to avoid data loss due to electrical shutdown!

Temperature measurements close to DUT* are available with a USB
controlled measurement unit or optional TEC stabilized mounts for
LED modules paired with programmable controllers.

*DUT – Device Under Test**LID – Luminous Intensity Distribution

GL GONIO SYSTEMS
12

office@gloptic.com
www.gloptic.com

GL SYSTEM

Optimized foreach application

PERIPHERALS

Multiple configurations are available for different measurements
and applications. Take a look at available instruments
and peripheral devices and contact us to confirm
the details of your configuration with GL team.

AUTOMATIONSYSTEM CORE
POWER SUPPLIES & METERS
Choose form available power supplies
and current sources for a full electricalcharacterization of DUT*.
Advanced power meters and fastcurrent sources from leading
suppliers available on demand.

TEC CONTROLTEC controllers and mounts
for LED modules thermal stabilization and measurements
during goniometric tests areavailable.

*DUT – Device Under Test

GL GONIO SYSTEMS14GONIOMETER
Programmable robust
and accurate Type C
goniometer with 3
mechanized axes.

SOFTWARE + PC
GL offers preconfigured, turn-key system
including all instruments with softwareand a dedicated PC which is tested prior
to shipment to customer.

ACCESORIESS
Unique laser alignment systemwith mirrors and system control options helps to calibrate
system vertical and horizontalalignment and also faster photometric positioning of DUT*.

SPECTIS 1.3 LSHigh sensitivity version of ourpopular spectroradiometer
optimized for fast photometric &colorimetric measurements.

SPECTIS 5.0
Check angular distributionof optical radiation in an
extended spectral range
from UV to NIR in a variety
of applications.

FAST PHOTOMETER+ FLICKER
On‑fly measurements
available with this new
optional instrument combined with optical flicker
characterization of DUT*.

Support & Installation
Online and On-site extensive
know-how support for end-users
to help them manage their complex
measurements.

office@gloptic.com
www.gloptic.com

GLG 30-1800

Large system
This gonio spectrometer, which delivers fast and reliable
results, can be used in factory laboratories as well as inaccredited laboratories. With easy to use software, precisealignment protocols and extensive automation capabilities,
the system offers a new level of performance and usability.

6

1

things making GL Gonioa unique solution

Manual controller supports the user to align the lamp position
before measurements. An easy to use software interface
shortens configuration time and allows for quick DUT
description and settings.

CIE S:025 Compliant Stabilization
INCLUDED!

IES

LDT

IEC

ONE CLICK
Photometric File Output
While this goniospectrophotometer generates
spectral and colour data at any angle, it remains
true to its primary use – generating IEC/LDT
output files simply and with the click of a button.

3
4
5

2

Tried and tested industrial gears paired with high accuracy
absolute encoders to provide best angular accuracy andrepeatability.

Unique laser alignment system with mirrors
and system control options helps to calibrate
system vertical and horizontal alignment andalso faster photometric positioning of DUT.

Smart cable management system will help keep the cables
neat and turning connectors to avoid problems with tangled
cables during tests and faster connections.
• Banana connections right next to the DUT provide the necessary electric power stability.

Robust CNC machined body of the device is durable and stableenough to hold large lamps and guarantees long lasting performance. Exceptional lamp size capacity 1800 mm x 700 mm.

A Wide Range of Luminaires
With an extended max load of up to 30 kg
and 1800 mm max diameter, the GLG 30-1800 will
cover most of testing demands.

Have a range of small and large
fixtures?
No problem. The system can accurately
characterize large and small fixtures without
any mechanical changes.

GL GONIO SYSTEMS
16

6

Reasonably priced high performance professional
instrumentation now available for quality lighting
product manufacturers.

office@gloptic.com
www.gloptic.com

Large System GLG 30-1800

Large GLG30-1800

3 LEVELS OFCONFIGURATIONAVAILABLE,
DEPENDING ON
THE BUDGET AND
REQUIREMENTS

OPTIONAL
AND PERIPHERALDEVICESBASIC
Entry level configuration for simple
access to photometric data providing
minimum functionality mainly to generate photometric files. This will include thegonio with simple tripod and Stray Light
Hood together with measuring device
GL Spectis 1.3 LS recommended forphotometric + colorimetric tests.

GL SPECTIS 5.0 Touch
UV VIS NIR
Check angular distribution of opticalradiation in an extended spectral range
from UV to NIR in a variety of applications.

PROFESSIONAL
Optimal setup for advanced photometricand colorimetric analysis and reporting.
In this configuration we add some
improved functionalities such as: Professional tripod and stray lighttube which will not only provide
reflection rejection but is designed
to increase the light level in themeasurement device to allow for
speedier tests
 Manual controller (joystick) to significantly simplify accurate alignment of
DUT before start Railing system is available forprofessional tripod if changing ofphotometric distance is necessary

Power supply
Choose form available AC & DC
power supplies and current
sources for a full electricalcharacterization of DUT. Advanced
power meters and fast current
sources from leading suppliers
available on demand.

LABORATORY
Accredited lab level set for mostdemanding jobs using scientificdetectors for advanced tests andmeasurements and for accredited
laboratory environments. GLG system
is available in the top end configuration.
This setup uses laboratory level measuring instrument GL SPECTIS 5.0 Touch
which not only offers the highest opticalresolution in the extended spectral range
but also provides increased sensitivity
which will support demanding opticalmeasurements of technical lighting
or scientific research beyond the visible spectrum

 On-fly measuring is available with theuse of optional fast photometer for
speedier tests
GL GONIOMETERGL GONIOMETERGL GONIOMETERGL GONIO SPECTROMETER GLG 30-1800+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter+ GL tripod+ Stray Light Hood

GL GONIO SPECTROMETER GLG 30-1800+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter+ GL tripod+ Stray Light Tube

GL GONIO SPECTROMETER GLG 30-1800+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter+ GL tripod+ Stray Light Tube

GL SOFTWAREGL SOFTWAREGL SOFTWARE

GL Spectrosoft PRO

GL Spectrosoft PRO

GL Spectrosoft LAB

GL SPECTROMETERGL SPECTROMETERGL SPECTROMETERGL SPECTIS 1.3 LS

GL SPECTIS 1.3 LS

GL SPECTIS 5.0 Touch VISACCESSORIESACCESSORIESACCESSORIES

Windows desktop PC for GL Optic System

Windows desktop PC for GL Optic System

Windows desktop PC for GL Optic System

GL rails for tripod

GL rails for tripod

GL stray light tube for spectrometer

GL stray light tube for spectrometer

GL gonio manual controller

GL gonio manual controller

TEC mounts and controllers
for stabilization of LED modules
temperature during test
and measurements

Fast photometer
GL PHOTOMETER 3.0 LS + Flicker
for On-Fly intensity distribution
measurements combined with flicker
parameters testing

AUTOMATIONGL SPECTIS 5.0 Touch UV VIS NIR+ POWER SUPPLIESExpand the Gonio usability
by adding GL AUTOMATION
The world of LED light measurement is expanding beyond
traditional optical testing with thermal conditions, current or
power levels also requiring measurement and reporting.
GL Spectrosoft Automation is an optional Add-on forSpectrosoft and it was purpose built to control these complex
testing procedures. Once you connect all devices which aresupported by the AUTOMATION software, building a custom
measurement script is simply a matter of using the drag anddrop interface and selecting the logical sequence from the listof available commands to the Automation editor window.
Thanks to AUTOMATION the integration of programmablepower supplies, power meters, temperature meters andeven TEC controllers for thermal stabilization with the gonio
systems has become easier than ever before.

Professional tripod
and rail system
available for quick
photometric distanceadjustments

GL Opti Probe 5.1.50

GL GONIO SYSTEMS
18

office@gloptic.com
www.gloptic.com

GLG 4-500 LIGHT GONIOMETER

Table top

Sliders + extentions

Optional sliders including integrated mountfor the measuring device are available.
This helps to quickly adjust photometricdistance.

A table top system for Light Intensity Distribution,
Luminous Flux and Colour measurement.

Sliders of 1 m or 2.5 m long are available
on demand. Additional extension profiles
can be ordered to meet different laboratory
room requirements.

This easy-to-operate system combines the functionality of a goniophotometer with the features of a spectroradiometer to measure flux and to check angle dependent luminous intensity together with the colorimetricdata required by international standards. The upgraded GLG 4-500 version is a table top light goniometer
specifically designed for LED modules and component testing. This setup can also be used for smaller luminaires measurements. The automated, PC based system can hold devices of up to 4-7 kg and 500mm
in diameter and measures with an angular resolution of 0.1° and C-plane and γ angle +/- 180°.

SLIDERS1 m or 2.5 m
EXTENTIONS

Comprehensive instrumentation
for speedier product testing
for luminous intensity and optical radiation
distribution measurement in general lighting,technical and scientific application areas.

Unique, flexible and upgradable
systems to simplify productcompliance
Unlike many competitive systems GL gonios
can be modified to meet client requirements.

6
GL GONIO SYSTEMS
20

LED modules test
& measurements

Optical radiation intensity
distribution measurements

Optical sensors angularsensitivity tests

When working with LED modules or COBs you
may need to stabilize the junction temperature.
This is required for specific performance tests
to verify flux output and intensity distribution
under different temperatures. This option is
also used for optical components testing usedin lamp production like lenses, diffusers andreflectors.

When working with UV or IR LEDs an optical distribution pattern is needed to verify the spatial
performance of products. Such measurements
are possible with the use of our laboratory
grade spectroradiometer GL SPECTIS 5.0 Touch
UV – VIS – NIR.
This instrument will cover expanded spectral range measurements with high opticalresolution.

Manufacturers of optical sensors in vision systems,
industrial automation and consumer appliances
are looking for ways to check how the sensitivityof optical sensors is changing with the angle ordistance. GL gonio systems can be used for suchmeasurements and can create an Angular Sensor
Sensitivity Pattern (ASSP). This can be available not
only for visual range sensors (light sensors) but alsoin specific IR ranges used in remote controls, proximity sensors, object detection systems and other.

1mthings making GL Gonioa unique solution

1
2

Simple interface to perform advanced tests
and measurements.

Build-to-last mechanical system with integrated aluminium
base including controllers and connectors withplug-and-measure concept.
Ideal for LED modules and linear lights.

3
4

Programmable turnkey system with smooth and quick
operation. Optional sliders for optimum photometric distancesettings are available.

5

Connectors for peripheral power supply
in the base are wired with banana sockets
placed close to DUT

6Best price quality
ratio on market andeasy operation

Included laser alignment tool allows for quick positioning
and distance measurements.

office@gloptic.com
www.gloptic.com

Table Top
GLG 4-500 Light Goniometer

Table TopGLG 4-500 Light Goniometer

3 LEVELS OFCONFIGURATIONSAVAILABLE,
DEPENDINGON THE BUDGET
AND REQUIREMENTS

OPTIONAL
AND PERIPHERALDEVICESGL SPECTIS 5.0 Touch
UV VIS NIR
Check angular distribution of optical radiation in an extended spectral range from
UV to NIR in a variety of applications.

BASIC
Entry level configuration for simple
access to photometric data

PROFESSIONAL
Optimal setup for advanced photometricand colorimetric analysis and reporting

LABORATORYGL GONIOMETERGL GONIOMETERGL GONIOMETERGL GONIO SPECTROMETER GLG 4-500+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter

GL GONIO SPECTROMETER GLG 4-500+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter

GL GONIO SPECTROMETER GLG 4-500+ Laser Alignment Tool
+ Mirrors+ Bosch distance meter

GL SOFTWAREGL SOFTWAREGL SOFTWARE

GL Spectrosoft PRO

GL Spectrosoft PRO

GL Spectrosoft LAB

GL SPECTROMETERGL SPECTROMETERGL SPECTROMETERGL SPECTIS 1.3 LS

GL SPECTIS 1.3 LS

GL SPECTIS 5.0 Touch VISACCESSORIESACCESSORIESACCESSORIES

Windows desktop PC for GL Optic System

Windows desktop PC for GL Optic System

Windows desktop PC for GL Optic System

GL tripod

GLG Slider 2500

GLG Slider 2500

Stray Light Hood

GLG Slider extension 1000

GLG Slider extension 1000

Stray Light Tube

Stray Light Tube

Accredited lab level set for mostdemanding jobs using scientificgrade detectors

GL Opti Probe 5.1.50

Power supply
Choose form available AC & DC
power supplies and current
sources for a full electricalcharacterization of DUT. Advanced
power meters and fast current
sources from leading suppliers
available on demand.
TEC mounts and controllers
for stabilization of LED modules
temperature during test
and measurements

Fast photometer
GL PHOTOMETER 3.0 LS + Flicker
for On-Fly intensity distribution
measurements combined with flicker
parameters testing

AUTOMATIONGL SPECTIS 5.0 Touch UV VIS NIR+ POWER SUPPLIESGL AUTOMATION
expands the gonio usability
The world of LED light measurement expands beyond
traditional optical testing with thermal conditions, current
or power levels also requiring measurement and reporting.
GL Spectrosoft Automation is an optional Add-on forSpectrosoft and it was purpose built to control these complex
testing procedures. Once you connect all devices which aresupported by the AUTOMATION software, building a custom
measurement script is simply a matter of using the drag anddrop interface and selecting the logical sequence from thelist of available commands to the Automation editor window.
Thanks to AUTOMATION the integration of programmablepower supplies, power meters, temperature metersand even TEC controllers for thermal stabilization withthe gonio systems has become easier than never before.

TEC control
When working with LED modules or COBs you may needto stabilize the junction temperature. This is required forspecific performance tests to verify flux output and intensity
distribution under different temperatures. This option is also
used for optical components testing used in lamp production
like lenses, diffusers and reflectors.

Sliders + extentions
Extension profiles can be ordered
to meet different laboratory room
requirements.

GL GONIO SYSTEMS
22

office@gloptic.com
www.gloptic.com

DUT SIZE & RANGE

Quality& Price

Better thancompetition

GL Optic uses only top quality sensors from a recognized Japanesesupplier HAMAMATSU Photonics. Coating and diffusing materials
together with profiles and housing parts come from trusted German
suppliers. Our electronic boards and software interface are designed,
manufactured and programmed in Poland.
Our own Calibration Standards are based on Russian VNIOFII Institute ofPhysical Measurements which is the world’s leading provider of Black
Body reference standards used by NIST, NPL, PTB, and other top National
Metrology Institutes.
The production facility and calibration laboratory of GL Optic is locatedin Western Poland, in the region of Poznan, which abounds inwell-educated and trained human capital.

We are an European manufacturer
with best price/quality ratio.

SCALABILITYPRICE

COMPETITIVE ANALYSIS TABLESUPPORT& MAINTENANCELOW END SYSTEM

GL GONIO SYSTEM

HIGH END instrument

METROLOGY
SPECTRORADIOMETERSony detector

Incl. SPECTIS 1.3 LS (Hamamatsu CMOS)

Optional (Hamamatsu CCD)

Traceable calibrationn/aIncluded NIST / PTB traceable

Optional NIST / PTB traceable

PHOTOMETER

n/a

Optional

Optionalλ(lamda) filter spectral matching classn/aClass AClass L

Stray light hood / tube

n/aIncluded / Optional

Included

Manually for C axis

By controller for C; Gamma and Z

Controller for C and Gamma

Distance measurement

Photometric center alignment

OK

OK

OK

Power measurement at DUT

n/a

OK

OK

On-Fly measurements

n/a

OK

n/a

Industrial meachanical mounting plate

OPERATION AND HANDLING
Lamp mountSupportMECHANICALPRECISSION

Light weight mounting rackIndustrial meachanical mounting plate

Cable connection to DUT

n/aBanana sockets

OK

Electrical connectors at DUT

n/aInteral cable connection from base to DUT withrotating connectors 4 banana sockets

Interal cable connection from base to DUT withrorating connectors 6 banana sockets

Manual in fixed positions only

Automatic smooth adjutement <770mm

Manual smooth adjustement <500mm

n/a

Optional

Optional

Adjustement of Z axis
Integration of laboratory peripheral devices

TECHNICAL DATA

Our roots are in the lighting industry and we understand lightmeasurement from the lighting manufacturers’ perspective.
GL Optic does not simply manufacture high quality instruments but it
offers an extensive know-how support for its end-users to help them
manage their complex measurement challenges.
We have a world wide experience in simplifying professional lightmeasurements to improve the quality of light products.

CIE Goniometer TypeFar-field C gamma

Far-field C gamma

Far-field C gamma

Drivers

2 stepper motors

3 stepper motors with absolute encoders*

3 Synchronous servo motors
with angular encoders

Angular range C axis–

± 180°-90° to +270°, protection with end switches

Angular range γ axis–

± 180°±165°, protection with end switches

5° / 0.1°

0.1° / encoder 0.004°

encoder 0.01°

Reproducibility C axis–

0.004°≤0.1° (at rated load) ; ≤0.2° (under max. load)

Angular speed C axis–

up to 45°/s

3.1°/s to 50°/s selectable (16 speeds)

Angular speed γ axis–

up to 45°/s

1.8°/s to 30°/s selectable (16 speeds)

Manually set positions only

up to 770 mm, motor operated

to 500 mm via hand crankn/aRound d=180 mm Fixing: multiple mounting holes:
M3, M4, M5, M6; chuck with sliding blocks

210 mm x 210 mm with 3 x 3 grooves size 6;
also various inserts with tapped threads
2000 mm

Angular positioning precision

DUT photometric center positioning (Z axis distance)

PHOTOMETRIC DISTANCEGL Optic provides consultations, modifies or customizes solutions
and supports customers in developing their light related business.
Online and onsite support, training and consultations are available.

DUT mounting plate (bread board)

1500 mm1800 mm

Maximum load

Maximum DUT dimensions

25 kg

30 kg

50 kg

Size W/H/D

190 x 190 x 162,5 cm

750 x 1650 x 1950 mm

1852.5 x 1492 x 1798 mm;

Goniometer weight
Power consumption

79 kg

90 kg

660kg

PC connection by USB A-B
110–230V 600W

230 V AC / 50 Hz; max. 1000 VA* What are Absolute Encoders? Encoders can be either absolute or incremental. Absolute encoders have a unique code for each shaft position. Or in other words, every position of an absolute
encoder is distinctive. The absolute encoder provides precise infromation on an absolute position of the goniometer system not just by counting number of steps like stepper motors do but by
a unique coding signal for each position. Oct 6, 2011 Source: https://www.motioncontroltips.com/absolute-encoders/

GL GONIO SYSTEMS
24

office@gloptic.com
www.gloptic.com

technical data
GL GONIOMETERGL SPECTROMETERGL PHOTOMETER

A

FA

hea

d

PHOTOME

CLASS

ST

t

TE

en

R

m

+

FL

IC

KE

R

Me

as

ur

e

GL PHOTOMETER 3.0

Large
GLG30-1800

Table top
GLG 4-500 Light Goniometer

Large LED modules and large luminaires.
Compliance with the following: CIE121-1996,
IESNA LM-79-08, CIE S 025/E:2015

Large LED modules and large luminaires.
Compliance with the following: CIE121-1996,
IESNA LM-79-08, CIE S 025/E:2015

APPLICATIONFar Field Type C with horizontal optical axis
 DUT moving
 3 axis stepper motors with worm drive gear boxes
 Total position encoders directly on axis

Far Field Type C with horizontal optical axis
 DUT moving
 2 axis stepper Belt drive system

Angular range C axis

± 180°± 180°

Angular range γ axis

± 180° theoretical (usable depending on
geometry due to shadowing)± 180° theoretical (usable depending on
geometry due to shadowing)

0.1°

0.1°

Angular positioning precision

GL SPECTIS 5.0 Touch VISSpectral range

340-750 nm

200-1050 nm

Detector

CMOS image sensor

CCD Backed thinned image sensor

High quality flicker measurements including long term sampling,
fast goniometric measurements, high precision illuminance measurements

Number of pixels

256

2048

TECHNICAL DATA SHEET

Physical resolution~ 1.7 nm / ~ 1.8 nm~ 0.5 nmMeasurement range

0,0001 lx … 5 000 000 lx*

Optical FWHM

~ 10 nm

2.5 nmResolution

0,0001 lx

Measurement range

1 – 200.000 lx [Illuminant A]

1 – 200.000 lx [Illuminant A]

Class A < 3 %Wavelength reproducibility

0.5 nm0.5 nmUncertainty of spectral
response (f1’)

Integration time

5 ms to 60 s

5 ms to 60 s

Sampling frequency

100 kHzA/D conversion

16 bits

16 bits

A/D conversion

18 bitSignal to noise ratio

1000:1

1000:1

SoftwareCosine correction

Class B – DIN 5032-7
Class AA – JIS C 1609-1:2006

Class BClass A Optional
DIN 5032 Part 7

GL Spectrosoft or API for
external software developers

Dimensions [H x W x D]

115 mm x 66 mm x 51 mm

Weight350g

TECHNICAL DATA SHEETTECHNICAL DATA SHEETCIE Goniometer type

GL SPECTIS 1.3 LS

GL PHOTOMETER 3.0 LS + FLICKERAPPLICATION

Reproducibility C axis

0.004°

0.1°

Reproducibility γ axis

0.004°

0.1°

Angular speed C axis

up to 45°/s

up to 45°/s

Stray light

2*10 E-3

3*10 E-4

Connectivity

USB A-B

Angular speed γ axis

up to 45°/s

up to 45°/s

Spectroradiometric accuracy

4%

Power

USB , 5V <200mA

DUT photometric center positioning

700 mm; stepper motor operated

0 to 180 mm; via hand crank

5 % within range 340 – 500 nm
4 % within range 500 – 780 nm

9 – 27 m
Distance ≥ largest DUT dimension x(5 to 15); (CIE S 025/E:2015)

2.5 – 7.5 m
Distance ≥ largest DUT dimension x (5-15); (CIE S 025/E:2015)

0.00150.0015¼”

Photometric distance

Measurement uncertainty
of colour coordinates (x.y)

Tripod adapter
Product no.

202294

Round d=180 mm
Fixing: multiple mounting holes: M3, M4,
M5, M6; chuck with sliding blocks

Square 80 x 80 mm
Fixing: multiple M6 mounting holes

PC interface–

USB 2.0 standard

Display full colour–

240 x 320 px

Maximum DUT dimensions≤ 1800 mm (diameter or diagonal)≤ 500 mm (diameter or diagonal)

WiFi

–

802.11b/g

Goniometer dimensions

750 x 1650 x 1950 mm (W x H x D)

300 x 470 x 530 mm (W x H x D)

Micro SD card–

4GB

Maximum operating footprint diameter2400 mm1100 mm (when vertical axis is fully extended)

PowerPower USBlithium-ion battery 4000mAh

Maximum load

30 kg

4 kg

Power consumption< 640 mA

~ 700 mA

Goniometer weight

80 kg

8 kg

Power supply–

Power supply and max. consumption

PC connection by USB A-B
110–230V 600W

PC connection by USB A-B
110–230 V 40W

Input:
AC 100-240V 50/60Hz 0.15A
Output:5V-1A

Sensor type

GL OPTIC Spectrometer range: GL Spectis 1.3 LS (recommended) GL Spectis 1.0 Touch LS GL Spectis 1.0 Touch + Flicker
 GL Spectis 5.0 Touch
 GL Photometer 3.0 LS + FLICKER

GL OPTIC Spectrometer range: GL Spectis 1.3 LS (recommended) GL Spectis 1.0 Touch LS GL Spectis 1.0 Touch + Flicker
 GL Spectis 5.0 Touch
 GL Photometer 3.0 LS + FLICKER

Ambient temperature

5-35°C

5-35°C

Dimensions

72 mm x 115 mm x 19 mm

111 mm x 210 mm x 58 mm

Weight120 g

1500 gProduct no.

106989201736202046

DUT mounting plate(bread board)

Product no.

GL GONIO SYSTEMS
26* standard measuring range can be extended by customization

office@gloptic.com
www.gloptic.com

- Office- Resellers- Clients

Contact us:
GERMANYFRANCEUSA

POLAND

GL OPTIC LICHTMESSTECHNIK GMBH
Tobelwasenweg 2473235 Weilheim / Teck
Germany

JUST NORMLICHT FRANCE SÀRL3, Rue Louis Pasteur
67240 Bischwiller
FranceJUST NORMLICHT INC.
2000 Cabot Blvd. West Suite 120
Langhorne, PA 19047-2408
United States

GL OPTIC Polska Sp. z o.o. Sp.kul. Poznańska 70
62-040 Puszczykowo
PolandPhone: +49 7023 9504 0
Fax: +49 7023 9504 837
E-mail: office@gloptic.com

Phone: +33 (0) 3 8806 2822
Fax: +33 (0) 3 8806 2823
E-mail: info@just-normlicht.fr

Phone: +1 267 852-2200
Fax: +1 267 852-2207
E-mail: sales@justnormlicht.com

Phone: +48 61 819 40 03
E-mail: office@gloptic.com