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This section provides an overview for luminance meters as well as their applications and principles. Also, please take a look at the list of 20 luminance meter manufacturers and their company rankings. Here are the top-ranked luminance meter companies as of December, 2024: 1.PCO, 2.Instrument Systems GmbH, 3.GOSSEN Foto- und Lichtmesstechnik GmbH.
Table of Contents
A luminance meter is a device used to measure luminance, the unit of brightness as perceived by the human eye.
It measures the luminance of a light source or an object reflecting light from a source, primarily used in the development and inspection of lighting fixtures and displays. The device employs a photodiode, which transmits an electrical signal in response to light intensity, for this purpose.
Luminance meters can measure luminance by color. They achieve this by spectrally dividing light into the three primary colors and measuring their luminance separately.
Luminance meters are used to measure the output of light sources, in the development and inspection of displays, and in devices that employ luminance for non-contact measurements. They enable quantitative evaluation of lighting brightness, setting a standard for consistent measurement.
When selecting a luminance meter, consider factors such as measurement accuracy, color compatibility, and the focusing ability of the attached lens.
A luminance meter comprises a lens, imaging surface, aperture, correction filter, and detector. During measurement, light is projected onto the imaging surface inside the meter through the lens. The aperture isolates light from the measurement area, which is then corrected by the filter to match human visual perception. The luminance is measured using a detector equipped with a photodiode. A diffraction grating, placed between the aperture and the correction filter, divides the light into three primary colors for separate measurements by the detector.
The meter uses an objective lens for measurement. Proper focus is crucial to measure the light source accurately. It is important to maintain a consistent distance between the light source and the luminance meter and to have a focus adjuster to avoid focus shifts.
To calibrate the luminance meter, use a diffuse reflector or a diffuse transmissive plate with a light distribution that is even and obeys the cosine law. A luminous intensity standard bulb with a distribution temperature of 2856 K is generally used as the light source.
If the illuminance on the diffuse surface is E, the reflectance of the diffuse surface is ρ, and the light distribution of the reflection obeys the cosine law, the luminance L (cd/m2) of the reflective surface can be expressed by the following formula.
L = ρE / π
No matter which direction the luminance meter is placed, it can be calibrated as long as the measurement viewing angle can be contained within the reflective surface. The output of the luminance meter can be calibrated from L calculated by E and ρ, which can be calculated from the luminous intensity I (cd) of a standard bulb and the distance S (m) between the bulb and the reflective surface.
Since the measurement of reflectance is not easy, it is reasonable to assume that the luminance calculated with a well-created reflective surface is accurate by approximately ±3-5%.
Before measuring luminance, ensure the meter is properly calibrated and the viewing angle is suitable. Confirm that the power supply for the lighting is regulated to the specified voltage and the fixtures are correctly installed. Also, consider the relationship between the field of view, the meter's position, and the measurement point.
Before measurement, allow light bulbs to warm up for at least 5 minutes and discharge lamps for 30 minutes. Measure the power supply voltage close to the light source. The luminance system requires a 5-minute exposure for stabilization. With sensitivity-switching luminance meters, avoid readings in the 0 to 1/4 scale range, if possible.
*Including some distributors, etc.
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Konica Minolta Sensing Americas Inc., founded in Ramsey, NJ, is a manufacturer of optical products that measures the elements of color and light. The company's product portfolio includes Spectrophotometers, Spectroradiometers, Color Meters, Color Readers, and Colorimeter. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company provides services such as Product Selection Guidance, Engineering Support, customer service and Custom Manufacturing.
Instrument Systems GmbH, founded in 1986, is a manufacturer headquartered in Munich, Germany, specializing in spectral light measurement solutions. The company's product lineup includes a range of colorimeters, spectrometers, and photometers. The company also offers goniophotometers, imaging colorimeters, and infrared testing cameras. Software packages, including calibration software for precise radiometric measurements, along with power sources and other accessories, are also available. The company serves various industries, supplying products for automotive interior and exterior lighting, addressing blue light hazard concerns, and facilitating display characterization processes.
EKO Instruments, founded in 1927 in Tokyo, Japan, is a manufacturer of advanced scientific instruments and solutions. The company specializes in producing unique instruments for measuring solar radiation, measuring photovoltaic performance, and environmental parameters. The products include solar radiation sensors, pyranometers, photovoltaic analyzers, and meteorological instruments. These products provide accurate data collection, enabling professionals in industries such as renewable energy, meteorology, agriculture, and environmental research to make informed decisions and optimize their processes. EKO Instruments' precision, adaptability, and technological advancement in the field of solar measurement and environmental monitoring result in the global transition towards sustainable and efficient energy solutions.
RayClouds Photoelectric Technology Co.,Ltd., established in 2007 and based in Dongguan City, China, is a manufacturer and supplier of optical instruments and measuring systems. The company's product portfolio includes AR/VR display analyzers, infrared radiation thermometers, and LCD display optical measurement systems. These products are used in various industries, including display, automotive, and the lighting industry. The company provides services including customization, inquiry handling, and technical support, and some of its clients include Trulyopto, Xiaomi, and Caihong Group.
PCO is a manufacturer company that develops camera systems for applications in the scientific, automotive, and industrial market industries that is headquartered in Kelheim, Germany and was established in 1987. PCO covers scientific, high-speed, intensified, and FILM imaging applications. Some of the specified products offered by the company are pixelfly machine vision, pco.edge sCMOS sensor, and DiCAMs. The company runs product catalogs from scientific cameras, high speed cameras, film cameras, intensified cameras, and software.
Tes Electrical Electronic Corp., founded in 1988 and based in Taipei, Taiwan, is a manufacturer of test instruments that are sold worldwide. Its products include digital earth testers, LAN cable meters, micro-ohmmeters, power analyzers, and battery capacity testers, used in various areas, including clean room inspection, measuring electrical energy waste, evaluating solar system performance, light testing, and monitoring exposure levels of noise. The company has an annual revenue of 10 million USD. It is ISO 9002 certified, and its calibration laboratory is TAF (Taiwan Accreditation Foundation) and ilac-MRA accredited.
TOPCON TECHNOHOUSE CORPORATION, a company established on October 8, 1982, and headquartered in Tokyo, Japan, is a manufacturer and supplier of measurement apparatus. The company offers products and advanced technologies such as positioning systems, imaging devices, laser scanners, and software solutions that enable accurate measurement, mapping, and visualization of data. These Products and services are utilized in various industries, including construction, agriculture, healthcare, and geospatial applications. Their products are used for tasks such as land surveying, construction site monitoring, precision agriculture, and medical imaging.
GL Optic, established in 2014 and headquartered in Poland, is a manufacturer of light-measuring instruments and complex solutions for spectral light measurement systems. The company specializes in photometric and radiometric measurement services and offers spectrometers, reference sources, and luminance meters. Its solutions find applications in military, automotive, and image sensor calibration, utilizing various measurement techniques for eco-design compliance verification and assessing LED products' performance. The company calibrates its products during manufacturing to ensure UV and NIR spectral calibrations and laboratory services.
Lisun Instruments Ltd. is based in Shanghai, China, and is a manufacturer of lighting and electrical test instruments that was founded as a subsidiary of LISUN GROUP in 2003. The company designs and produces instruments used to test light and electrical factors in various environments. These include salt spray test chambers, devices for testing electromagnetic compatibility or immunity, and spectroradiometers for measuring the colorimetric parameters of light sources. The company serves a wide range of clients including mobile network operators, lighting device designers, and home appliance manufacturers.
GOSSEN Foto- und Lichtmesstechnik GmbH, founded in 1997 and headquartered in Germany, is a manufacturer and supplier of light and exposure measurement equipment. The company belongs to the GMC INSTRUMENTS group, a globally supplier of metrological systems, and its primary product categories include light meters, exposure meters, and color meters, designed to meet the needs of photographers, cinematographers, and professionals in the film and photography industries. Its equipment allows professionals to achieve optimal exposure, color accuracy, and lighting conditions, ensuring efficient results in visual productions.
Durán Electrónicais a manufacturer and supplier of gas as well as fire detection systems and equipment established in 1973 and based in Madrid, Spain. The company produces complete analog or conventional fire detection systems, centralized gas detection systems, and standalone detectors. It also offers modular as well as compact weather stations, atmospheric sensors, and anemometers for environmental control purposes. Aside from its products, the company provides product customization, consultation, and training services for its client wine cellars, laboratories, and tunnel builders.
Narich, based in Cape Town, South Africa, is a manufacturer and supplier of color and light sensing solutions and related products. The company produces radiant vision systems, instrument systems, and alfa color paint dispensers. Its radiant vision systems use photometric cameras to replicate human visual sensitivity to visible wavelengths of light. Its instrument systems, display measurements, are filter-based camera systems for determining luminance and color. Its products serve various industries, including food and beverages, automotive and transport, and paint and coatings.
Quart GmbH, established in 1986 and based in Zorneding, Germany, is a manufacturer and supplier of a wide array of measuring instruments that pertain to X-ray technologies. The company's range of products includes X-ray multimeters, precision dosimeters, and mammography. Its X-ray multimeters enable measurements at locations with limited space, for instance behind scatter radiation grids to determine the equipment attenuation factor. It has passed the ISO 9001:2015 that relates to quality management systems.
CODEL International LTD, established in 1982 and headquartered in Bakewell, UK, is a manufacturer and designer of cutting-edge emission monitoring instrumentation. The company offers Continuous Emissions Monitoring Systems (CEMS), dust monitors, and flow monitors. These products are used primarily for monitoring emissions to atmosphere, road tunnel environments, and plant and rail safety. Its quality management system is ISO9001:2015 and 14001:2015 certified. More than 30 distributors and support center's worldwide are also available.
Konica Minolta Business Solutions Europe GmbH, a company founded in 2003, based in Langenhagen, Germany, is a subsidiary of Konica Minolta Inc., Tokyo, Japan, and a supplier of digital solutions. The company provides a diverse range of products and services encompassing cloud computing, information technology, managed print and video solutions, digital printing systems, label printers, and diagnostic imaging equipment. Additionally, the company provides a range of customer services encompassing system solutions, digital printing, graphic design, and engineering support.
EVERFINE Corporation, established in 2003, is a Chinese supplier based in Hangzhou, Zhejiang, specializing in testing devices and measuring instruments, as well as calibration services. The company provides an array of testing devices and measuring instruments for various parameters such as color, gloss, and haze, electromagnetic compatibility (EMC), light-emitting diodes (LEDs) or lighting, luminance or display, ultraviolet/infrared (UV/IR). It also provides automotive lamp and material tests. Additionally, the company offers calibration services for measuring instruments, covering colorimetric, radiometric, and photometric parameters. The company serves various industries, including rail traffic, photoelectric inspection, biometric information, and EMC measurement, by delivering inspection and information services.
RS Components, Ltd., established in 1937 and based in Corby, United Kingdom, is a distributor of a wide range of electronics as well as automation and control components. The company's range of products includes cables and wires, batteries and chargers, along with bearings and seals. It meets the industrial and electronic needs of its diverse customers. It works hand-in-hand with various name brands to provide quality products to its customers.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | PCO |
11.9%
|
| 2 | TOPCON TECHNOHOUSE CORPORATION |
7.9%
|
| 3 | Instrument Systems GmbH |
6.9%
|
| 4 | GOSSEN Foto- und Lichtmesstechnik GmbH |
6.9%
|
| 5 | Konica Minolta Sensing Americas Inc. |
6.9%
|
| 6 | EKO |
6.9%
|
| 7 | NDT Film Viewers |
5.9%
|
| 8 | QUART GmbH |
5.9%
|
| 9 | RayClouds Photoelectric Technology Co.,Ltd. |
5.0%
|
| 10 | Tes Electronical Electronic Corp |
5.0%
|
Derivation Method
The ranking is calculated based on the click share within the luminance meter page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Germany
|
5 | 31.3% |
|
Japan
|
3 | 18.8% |
|
China
|
2 | 12.5% |
|
Taiwan
|
2 | 12.5% |
|
United States of America
|
1 | 6.3% |
|
Spain
|
1 | 6.3% |
|
South Africa
|
1 | 6.3% |
United Kingdom
|
1 | 6.3% |
43 products are listed.
Admesy Japan LLC
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Helios Y is the ultimate brightness 2D imaging CMOS sensor that combines a high-precision interferometric Y filter. The filter has a very special d...
Konica Minolta Japan Co., Ltd.
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■Summary The ProMetric® I series is an imaging colorimeter suitable for evaluating the brightness and chromaticity of various displays and LED ligh...
Konica Minolta Japan Co., Ltd.
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■Summary The ProMetric® Y series is an imaging luminance meter suitable for evaluating the luminance of various displays and LED lighting, and for ...
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■Summary - A highly accurate and easy-to-use luminance meter that can measure luminance over a wide range from low to high luminance. - Weighing on...
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■Summary This measuring instrument has the measurement performance required for the development and inspection of high-quality displays, and is a t...
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■Summary - A highly accurate and easy-to-use color luminance meter that can measure luminance, chromaticity, and correlated color temperature over ...
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Hera is the ideal solution when you need a compact and affordable spectroradiometer. It is small but robust and measures illuminance, irradiance, a...
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■Summary This is a high-precision spectral radiance measurement system that can be used for a wide variety of applications. ■Spectral radiance mea...
Irie Co., Ltd.
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■Successor to the handheld luminance meter BM-9.Light and compact with separate light receiving part. This product is a handheld luminance meter th...
Mysec Co., Ltd.
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■Details ・A two-dimensional color luminance meter with high resolution and high speed measurement. Optional lenses are available for optical evalu...
Mysec Co., Ltd.
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Spectral analysis of images. High resolution (5 million) and high brightness spectroscopic measurements (17 billion cd/m2) can be analyzed every 1 ...
Mysec Co., Ltd.
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High-resolution measurement enables data analysis and evaluation suitable for development and production lines in a short time. ■Applications Unif...
TOPCON TECHNOHOUSE CORPORATION
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■ Overview This product is a lightweight, compact and portable handy type bright meter. It can be used for a wide range of applications by selectin...
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Hyperion color luminance meters are ideal when measurement speed and low-light performance are paramount, such as when measuring OLED displays. ■H...
Tsubosaka Electric Co., Ltd.
10+ people viewing
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■Features ・Easy and easy brightness measurement just by pressing against the brightness surface ・Compact and handy type that can be used in any s...
Admesy Japan LLC
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The Prometheus LF17mm is an ultra-fast photometer ideal for display measurements such as flicker measurements and waveform evaluation with very hig...
Tsubosaka Electric Co., Ltd.
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■Features ・Measures strobe flash light intensity and light intensity distribution using 9 light receiving points ・Observation of both xenon and L...
Admesy Japan LLC
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The Prometheus LF17mm is an ultra-fast photometer ideal for display measurements such as flicker measurements and waveform evaluation with very hig...
Tsubosaka Electric Co., Ltd.
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■Features ・Strobe tester, light meter, FLASH METER ・Measures 5 items including light emission amount ・Measurement by storing luminescence in a c...
Admesy Japan LLC
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Asteria luminance meters with M8 fiber connectors are ideal for installations where space is limited. The luminance meter is also useful when the s...
Tsubosaka Electric Co., Ltd.
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■Features ・Strobe tester, light meter, FLASH METER ・Measures 7 items including light emission amount ・Calculate the amount of light by measuring...
Tsubosaka Electric Co., Ltd.
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■Features - Measuring and displaying ink performance in the form of contrast ・Light source can be switched - Luminance meter can be selected (depe...
Orihara Manufacturing Co., Ltd.
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This device measures the reflected brightness of the center line of the road surface.
Admesy Japan LLC
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With its extremely small measuring spot, the Prometheus 2.1mm is the perfect color luminance meter for measurements that require extremely precise ...
Admesy Japan LLC
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The 2.1mm focus lens with built-in Prometheus pointer is the perfect color luminance meter for all measurements that require extremely precise work...
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Prometheus There is no other combination of colorimeter and ultra-high sample rate waveform analyzer. This setup allows for the fastest and most ac...
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The Prometheus D colorimeter with two 2 mm diameter measurement spots is a custom solution from the Prometheus series. Even with two measurement sp...
Pico Co., Ltd.
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■Making LED inspection more familiar and reliable ・Full spectrum analysis of all visible LEDs from low brightness to high brightness. ・Can be use...
