Goniophotometer

Multi Goniophotometers in 1 facility

The GO-R5000 integrates more powerful functions such as near field, middle field and far field distribution goniophotometer, which can be used for spatial luminous intensity distribution and total luminous flux test of indoor lighting lamps, floodlights, street lamps, etc. Equipped with imaging luminance meter and spectroradiometer, it can measure the spatial luminance distribution and spatial spectral color distribution of the light source.

Features

• Internationally Recognized High-end Reflector Type Goniophotometer
  By the academician led by the domestic authoritative expert group appraisal, won the "international leading" evaluation. It was reported by the authoritative German professional magazine (LICHT), and was authorized by the "China Excellent Patents Award" and the invention patent of China, Germany and US.
• The Highest Accuracy of Total Luminous Flux
  The detector located in the near field can use the illuminance integration method recommended by the CIE to achieve the highest precision measurement of the total luminous flux of various luminaires and light sources, which is the national benchmark for the total luminous flux in the photometric laboratories of major developed countries.
• Absolute Stability of Light Source
  The measured light source is always static in the measurement, to achieve the best stable working state of the measured light source and the lamp, to avoid many unstable factors caused by movement, in the measurement of temperature and rotation of the lamp is more sensitive, the stability of the light source in GO-R5000 goniophotometer is about 10 times higher than the general center rotation type goniophotometer.
• Fast Measurement Speed
  The system adopts the measurement method of detector rotation to avoid the rotation of the measured lamp around the horizontal axis, and the operation of the measured lamp can be very quick, and the precision transmission mechanism and high-speed angle coding system can achieve the measurement speed of about 6 times faster than the general goniophotometer.
• Multi-fields & Multi-functions measurement
  The EVERFINE GO-R5000 Goniophotometer can be flexibly configured with multiple different detectors to achieve near field, middle field and far-field measurement according to the actual requirement of the customer. So GO-R5000 is equivalent to having a combination of multiple goniophotometers with different functions, which can achieve the function of six in one.
• Extremely Wide Dynamic Measurement & High Sensitivity Measurement
  GO-R5000 enables extremely wide dynamic range measurements and highly sensitive detection capabilities, approximately 100 times wider than the dynamic range of an equivalent center-rotating mirror type goniophotometer.
• High Stray Light Control
  It can avoid multiple reflections in the narrow space to affect the detector measurement, and at the same time, the precision design of the extinction cylinder and the stop diaphragm achieves superior performance of the anti-stray light effect.
• Save Space & Retrofit costs
  The system adopts a very clever dual mirror design, which reduces the size requirement of darkroom space and the cost of retrofit compared with other rotating mirror type goniophotometer.
• Spatial Color Distribution & Spatial Luminance Measurement Optional
  It can measure the spatial color distribution, average color characteristics and spatial non-uniformity of various light sources and luminaires, and measures the spatial luminance distribution of various light sources.

Technical Specifications

CIE B-β and C-γ Measurement Methods

GO-2000 is a highly automated luminaire light distribution performance test system, mainly used for all kinds of indoor lamps, road lamps and floodlights ( add B-β test accessories) light distribution performance test, total luminous flux test and electrical parameters (voltage, current, power, power factor) measurement.

Features

• CIE B-β and C-γ Measurement Methods
  By means of luminaire and turntable rotation, CIE standard B-β and CIE C-γ measurement methods can be realized at the same time to measure the luminous intensity distribution in all directions of the light source.
• High Accuracy & Wide Dynamic Range
  The matching accuracy of relative spectral sensitivity of the photometer used in the system can reach the highest Class L, and the matching error is less than 1.5%.And adopts TC-cooling technology, its photometer measurement range: 0.0001lx ~ 200klx.
• High Angle Accuracy & High Stability
  Combined with the international advanced servo motor and absolute Angle encoder to achieve closed-loop control of the system, and then through the EVERFINE design and custom transmission, the rotation angle of the turntable is more accurate and stable.
• Automation Test & Powerful Software
  GO-2000 is a highly automated light distribution performance test system for lamps. The whole system is composed of powerful software to automatically complete various test tasks, and the test parameters refer to various international standards.
• Cost-Performance Solution with Small Space Demand
  The overall required space is small, the decoration cost is low, the light fixing is convenient, and the comprehensive cost performance is high.

Technical Specifications

Near-field photometric measurement,establishing the Ray model of light via algorithm Makes it more convenient & accurate to do the secondary optical design & development

Suitable for LED light source, LED chip, module and other small light source, the principal function includes: spatial light intensity distribution curve, spatial color distribution curve, iso-lux curve, total luminous flux, effective luminous flux, spatial luminance curve, etc.
The test data can be saved as IESNA (*.ies), CIBSE (*.cib), EULUMDAT (*.ldt), CIE (*.cie), CEN (*.cen) and other formats, which can be directly used as the input data of international general lighting design software.
Spatial luminance data can be imported into near-field lighting generation software to generate light data that can be imported into third parties (TracePro and LightTools).

Features

• For Secondary Optical Design & Development of Light Source
  The near-field goniophtometer uses the imaging luminance colorimeter based on 2D CCD as the detection element to measure and record the luminance distribution of the light source in all directions, that is, the luminous flux of each luminous point on the light source in all directions, and then establishes the actual light distribution model of the light source to be measured. The model can be input into the optical design software to carry out the light distribution design of the luminaries and the lighting site design.
• Accurate Angle Positioning
  By adjusting the precise position and angle of the light source, the problem of poor measurement accuracy can be effectively overcome when the traditional goniophotometer measures the light source at a long distance and the LED module composed of multiple LEDs with a certain beam angle.
• Real Ray Model for the Accurate Optical Design
  GO-NR1000 can be used as a sample to establish a real light model, which can provide more detailed data for optical design.

Technical Specifications

Integrated Darkroom Design Accurate Measurement for Spatial Luminous Intensity & Color Distribution of Luminaires

Suitable for all kinds of indoor lamps, flood lamps, road lighting lamps and all kinds of light distribution performance test, total luminous flux, luminaire efficiency and electrical parameters (voltage, current, power, power factor) measurement.Test data can be saved as IESNA(*.ies), CIBSE(*.CIB), EULUMDAT(*.LDT), CIE(*.cie), CEN(*.cEN) and other formats, which can be directly used as the input data of international general lighting design software.

Features

• Integrated Darkroom
  The system adopts a unique design scheme combining low stray obscural and extinction cylinder. Users do not have to build a special dark room for optical testing, and can achieve light distribution measurement of light sources and lamps under office conditions.
• Mutual Data Correction
  The combined design of spectroradiometer and special precision photometer match and correct the spectral data during photometric measurement, so that the photometric measurement accuracy can be achieved.
• Comprehensive Testing Capabilities
  The system integrates the functions of spatial luminous intensity distribution curve, total luminous flux and spatial color distribution (average color and spatial color non-uniformity), truly realizing the comprehensive test of the spatial characteristics of luminaires.
• Highly Integrated System with Easy Operation
  The test system is highly integrated and easy to use, which integrates two rotation axes, AC-DC power supply, measuring unit and measuring and control software.

Technical Specifications

Integrated Darkroom Design. Perfect Solution of Luminous Intensity&Spatial Color Distribution Test

GO-SPEX100 delivers photmetric, colorimetric, electrical comprehensive test function for LEDs, and built-in precision temperature control platform,not only for measuring the specific temperature of the photometric and colorimetric parameters of LED, but also to measure the characteristics curve of its photometric and colorimetric performance with temperature.
The test parameters include: spatial luminous intensity distribution curve, luminous flux, spatial spectral distribution, relative spectrum, absolute spectrum, color parameter, forward current and forward voltage, etc.

Features

• Comply with CIE Pub. No.127 A/B Conditions
  CIEpub.No.127 Condition A, condition B and 1 meter standard test distance can be provided to achieve accurate testing of LED spatial luminous intensity and spatial spectral distribution, and analyze and obtain various parameters.
• Integrated Darkroom Design
  The unique design of the integrated darkroom can effectively save laboratory space and reduce customer laboratory costs while meeting the standard requirements.
• Built-in Temperature Control Platform
  The Built-in temperature control platform: precise temperature control to obtain LED photometric-colorimetric-electrical performance changed with temperature, providing guidance data for LED design applications.

Technical Specifications

Integrated Benchtop Design with Accurate LED Positioning

It can measure the luminous intensity data and automatically plot the luminous intensity distribution curve and luminous flux, and the test conditions meet the CIE condition A (far field) or condition B (near field).In addition, the software can provide customers with 3D luminous intensity distribution graphic.

Features

• Comply with CIE Pub. No.127 A/B Conditions
  The test conditions fully meets CIE pub.No.127 Condition A or B. A national standard level photometer with a light area of 1cm² is used, with reference to the latest ISO/CIE international standard requirements.
• High Accuracy Measurement & Positioning
  Using a number of EVERFINE goniophotometer patent technology, with precision LED mechanical positioning device and integrated design center alignment system, the data measurement accuracy is very high.
• IR/UV Photometer Optional
  Different photometer can be selected to measure the radiation intensity distribution curve of infrared LED and ultraviolet LED.

Technical Specifications