Goniophotometry represents a critical metrological discipline within photometry, enabling the precise measurement of luminous intensity distribution, total luminous flux, and spatial color uniformity of light sources. The LSG Series Goniophotometer, manufactured by \u0644\u064a\u0633\u0648\u0646<\/a> Instruments, constitutes a family of automated testing systems designed to comply with internationally recognized standards such as CIE 121-1996, IESNA LM-79-08, and ISO 9001:2015. This article provides a comprehensive price guide and technical analysis of the LSG-6000 and LSG-1890B models, focusing on their application across the lighting, display, photovoltaic, and optical instrumentation industries. The pricing of these systems is contingent upon optical bench configuration, detector type, software licensing, and ancillary equipment, necessitating a detailed breakdown for procurement professionals in research laboratories, manufacturing facilities, and urban planning departments.<\/p>\n The LSG-6000 and LSG-1890B \u0645\u0642\u0627\u064a\u064a\u0633 \u0627\u0644\u0636\u0648\u0626\u064a\u0629 \u0627\u0644\u062c\u0648\u0646\u0648\u0641\u0648\u062a\u0648\u0645\u062a\u0631\u064a\u0629<\/a> exhibit distinct structural and operational characteristics that directly influence their market price. The LSG-6000 employs a rotating mirror \u0645\u0642\u064a\u0627\u0633 \u0627\u0644\u0632\u0648\u0627\u064a\u0627 \u0627\u0644\u0636\u0648\u0626\u064a\u0629<\/a><\/a> design, ideal for large luminaires with masses up to 50 kg, while the LSG-1890B utilizes a rotating arm configuration optimized for compact LED modules. Base pricing for the LSG-6000 typically ranges from \u20ac28,000 to \u20ac45,000, depending on the inclusion of a darkroom enclosure, temperature-controlled detector housing, and high-speed rotation stage. The LSG-1890B, with its higher angular resolution (0.1\u00b0 minimum step) and dual-axis detection system, is priced between \u20ac35,000 and \u20ac52,000. Additional costs arise from software packages\u2014such as LISUN\u2019s Goniophotometry Suite for IES\/LDT output\u2014calibration certificates traceable to national metrology institutes, and integration with spectroradiometers for chromaticity measurement. For laboratory environments requiring simultaneous luminous flux and colorimetric analysis, upgrading to a double-monochromator spectroradiometer adds approximately \u20ac8,000 to \u20ac15,000 to the total investment.<\/p>\n The LSG-6000 goniophotometer is engineered around a horizontal-axis rotating mirror principle, as specified in CIE 121-1996. The system positions the light source in a fixed orientation while a front-surface mirror rotates around the vertical axis, reflecting the emitted light toward a remote photometric detector. This design minimizes positional errors due to luminaire weight and enables testing of high-bay fixtures, streetlights, and floodlights. The detector, typically a Class L photometric filter equipped with a V(\u03bb) correction to within 3% of the CIE standard observer, acquires luminous intensity data at intervals of 1\u00b0 or finer. The LSG-6000\u2019s angular range spans 0\u00b0 to 360\u00b0 for the C-axis and 0\u00b0 to 180\u00b0 for the \u03b3-axis, facilitating full spherical coverage. Luminous flux is calculated via integration of the intensity distribution according to the zonal constant method, yielding uncertainties below 1.5% for flux values exceeding 500 lumens. The system\u2019s mechanical stability\u2014achieved through a stepper motor drive with a positioning accuracy of \u00b10.05\u00b0\u2014ensures reproducibility across repeated measurements, an essential requirement for quality control in LED assembly lines.<\/p>\n The LSG-1890B goniophotometer represents a high-precision instrument for testing luminaires with masses up to 20 kg, such as downlights, retrofit LEDs, and automotive lighting assemblies. Its rotating arm principle involves the movement of both the luminaire and the photometric sensor, enabling a compact footprint\u2014beneficial for laboratories with limited floor space. Key specifications include:<\/p>\n Pricing for the LSG-1890B is tiered: the base configuration (manual photometric detector, no darkroom) starts at \u20ac32,000, while the advanced suite\u2014including a scientific-grade CCD spectroradiometer, motorized zoom optics, and integrated temperature chamber for thermal stability testing\u2014reaches \u20ac48,000. A frequently requested upgrade is the high-voltage power supply for testing HID and specialty discharge lamps, costing \u20ac2,500 to \u20ac4,000. These pricing structures are designed to accommodate varying budgets within the optical instrument R&D and medical lighting equipment sectors, where traceability to DIN 5032-7 or JIS C 8105 standards is mandatory.<\/p>\n Both LSG-6000 and LSG-1890B systems are validated against CIE 121-1996 for goniophotometer performance and IESNA LM-79-08 for electrical and photometric measurements of solid-state lighting. In the United States, adherence to IES LM-79-19 further mandates spectral data acquisition using a spectroradiometer integrated into the goniophotometer\u2014a configuration supported by LISUN\u2019s optional array spectrometer. For the photovoltaic industry, these instruments measure light output distribution of solar simulators and UV curing arrays, in compliance with IEC 60904-9 Class AAA requirements. The medical lighting equipment sector benefits from the LSG Series\u2019 ability to assess beam homogeneity and color uniformity per IEC 60601-2-41, which governs surgical luminaires. Stage and studio lighting manufacturers utilize the LSG-1890B to verify beam angles and cross-sectional intensity profiles according to the CIE S 025\/E:2015 standard. Urban lighting design firms employ the LSG-6000 for streetlight photometry, ensuring compliance with EN 13201 series for road lighting quality\u2014a critical factor for public tender evaluations.<\/p>\n Compared to alternative goniophotometers from manufacturers such as EVERFINE, Labsphere, or GL Optic, the LSG Series offers a favorable cost-to-performance ratio, particularly in emerging markets where calibration certification and post-sale support are crucial. The LSG-6000\u2019s rotating mirror design allows for testing of heavier fixtures without additional counterbalancing equipment\u2014a differentiator against rotating arm systems that require lower payload capacities. Furthermore, LISUN\u2019s proprietary software generates IES LDT, CIBSE TM-14, and Eulumdat file formats natively, eliminating the need for third-party conversion tools. The LSG-1890B incorporates real-time dark current compensation and ambient light subtraction, enhancing measurement sensitivity for low-luminance units (below 10 lm). In the display equipment testing industry, where uniformity across pixel arrays is paramount, the LSG Series can be configured with microscopic objective lenses and XYZ-stage positioning for direct luminance mapping of OLED panels, aligning with VESA DisplayHDR specifications.<\/p>\n A distinguishing technical capability of the LSG-6000 and LSG-1890B is their compatibility with external spectroradiometers, enabling simultaneous measurement of color space coordinates (CIE 1931 x, y; CIE 1976 u\u2019, v\u2019) and correlated color temperature (CCT). The recommended spectrometer models include the LISUN LPCE-2 or Ocean Insight QE Pro, connected via fiber-optic bundle placed at the photometric distance. During a measurement sequence, the goniophotometer rotates to each angular position, at which point the spectroradiometer captures the full spectral power distribution (SPD) from 380 nm to 780 nm at a resolution of 1 nm or finer. The integration of SPD data facilitates calculation of color rendering indices (Ra, R9 through R15) per CIE 13.3-1995 and IES TM-30-18. For scientific research laboratories, this dual-mode photocolorimetry reduces measurement time by 40% compared to sequential scanning methods, making it ideal for life-cycle testing of OLED lighting panels where chromaticity shift over 10,000 hours must be resolved with sub-0.002 u\u2019v\u2019 accuracy.<\/p>\n In LED manufacturing environments, the LSG-1890B serves as a final inspection tool, verifying that each luminaire conforms to light distribution curves (LDC) defined during design-in. The system\u2019s automated pass\/fail criteria\u2014based on maximum permissible deviation of \u00b15% in beam angle\u2014reduce human judgment variability. For OLED module producers, the goniophotometer\u2019s capability to measure Lambertian distributions with high angular resolution (0.1\u00b0 intervals) is critical for verifying edge-emission patterns in panel lighting applications. The sensor and optical component production industry utilizes the LSG Series to characterize diffusers, lenses, and collimators. For instance, the transmittance of an LED lens assembly can be derived by comparing luminous flux with and without the optical element, using the goniophotometer\u2019s absolute flux measurement mode. The system\u2019s data output supports mathematical reverse engineering of optical surfaces, enabling R&D teams to refine manufacturing processes with closed-loop corrections. In Japan and Germany, where JIS C 8105-2 and DIN EN 13032-1 apply, the LSG-1890B\u2019s compliance documentation is accepted by certification bodies for product approval.<\/p>\n The accuracy of goniophotometric measurements is contingent on thermal equilibrium of the light source and the photometric detector. The LSG-6000 and LSG-1890B incorporate a preheating protocol that maintains the luminaire at ambient temperature within \u00b11\u00b0C for 30 minutes prior to data acquisition\u2014a requirement outlined in IES LM-79-08. For temperature-sensitive applications such as medical endoscopy lighting, an optional environmental chamber (\u20ac6,500 to \u20ac9,000) encloses the test area, controlling temperature from 15\u00b0C to 35\u00b0C and relative humidity from 20% to 80%. The detector\u2019s temperature drift is compensated via a built-in thermistor and software correction algorithm, limiting flux variation to less than 0.2% per \u00b0C. In the photovoltaic industry, goniophotometers are used to measure angular response of solar reference cells; the LSG Series\u2019 low stray light level (less than 0.01% of full scale) ensures that spectral mismatch errors remain below 0.5% per IEC 60904-8. These environmental controls are included in pricing upon request, adding approximately 10% to the base system cost.<\/p>\n LISUN\u2019s Goniophotometry Software Suite, provided with both the LSG-6000 and LSG-1890B, operates under Windows 10\/11 Pro and offers a modular interface that allows users to define test sequences, real-time data visualization, and batch processing. The software supports export formats required by major lighting design software, including IESNA LM-63, Eulumdat LDT, and CIBSE TM-14. For research institutions, the software can be customized to include user-defined angular grids (e.g., 0.2\u00b0 steps for narrow beam evaluation) and statistical analysis routines (mean, standard deviation, Cpk). The pricing for the software is generally bundled with the hardware, but multi-license network packages for facilities with multiple workstations are available at \u20ac1,200 to \u20ac2,500 per additional seat. Data interoperability is enhanced by the software\u2019s ability to import spectral files from third-party spectroradiometers, enabling cross-platform validation. For scientific research laboratories that require open-source access to raw data, the software can save measurement logs in CSV or HDF5 formats, facilitating downstream processing in MATLAB, Python, or LabVIEW. This flexibility is particularly valued in university optical R&D programs investigating angular color shift phenomena.<\/p>\n The total cost of ownership for the LSG Series includes initial purchase, annual recalibration, and potential component replacement. Calibration services, provided by LISUN or accredited third-party labs, cost between \u20ac800 and \u20ac1,500 per year, depending on whether photometric, spectral, or mechanical calibration is required. The photometric detector\u2019s aging\u2014typically a 1% per 2,000 hours of operation change in sensitivity\u2014necessitates periodic recalibration to maintain traceability to NIST or PTB. The LSG-6000\u2019s rotating mirror assembly is rated for 5 million cycles, while the LSG-1890B\u2019s arm motor is rated for 3 million cycles, ensuring a service life exceeding 10 years under typical laboratory use. For manufacturing operations with three-shift schedules, LISUN offers extended warranty packages (\u20ac2,000 to \u20ac3,500 for three years) that include priority remote troubleshooting and replacement of worn bearings or encoders. These investment considerations are critical for procurement managers in the sensor and optical component production industry, where unplanned downtime can result in production line stoppages valued at thousands of euros per hour.<\/p>\n Q1: What is the primary difference between the LSG-6000 and LSG-1890B in terms of luminaire size capacity?<\/strong> Q2: Can the LSG Series generate photometric files compatible with Dialux and Relux software?<\/strong> Q3: How does the LSG-1890B achieve low stray light performance for low-luminance measurements?<\/strong> Q4: What standards must be met when using the LSG Series for medical lighting compliance?<\/strong> Q5: Are there financing options or leasing programs available for LSG Series systems?<\/strong> Introduction to Goniophotometric Testing and the LSG Series Goniophotometry represents a critical metrological discipline within photometry, enabling the precise measurement of luminous intensity distribution, total luminous flux, and spatial color uniformity of light sources. The LSG Series Goniophotometer, manufactured by LISUN Instruments, constitutes a family of automated testing systems designed to comply with internationally recognized […]<\/p>\n","protected":false},"author":1,"featured_media":3510,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[685],"class_list":["post-9336","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","tag-goniophotometer-price"],"_links":{"self":[{"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/posts\/9336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/comments?post=9336"}],"version-history":[{"count":1,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/posts\/9336\/revisions"}],"predecessor-version":[{"id":9337,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/posts\/9336\/revisions\/9337"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/media\/3510"}],"wp:attachment":[{"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/media?parent=9336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/categories?post=9336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ledtestsystem.com\/ar\/wp-json\/wp\/v2\/tags?post=9336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Pricing Determinants for the LSG-6000 and LSG-1890B Goniophotometer Systems<\/h2>\n
Technical Architecture and Measurement Principles of the LSG-6000<\/h2>\n
Specification Breakdown and Pricing Tiers for the LSG-1890B<\/h2>\n
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Compliance with International Testing Standards and Industry Use Cases<\/h2>\n
Competitive Advantages of the LSG Series in Global Optical Testing Markets<\/h2>\n
Integration with Spectroradiometric Systems for Chromaticity Analysis<\/h2>\n
Application in LED and OLED Manufacturing Process Control<\/h2>\n
Temperature Stabilization Considerations and Environmental Compatibility<\/h2>\n
Software Capabilities and Data Interoperability for R&D Environments<\/h2>\n
Long-Term Investment Considerations and Calibration Services<\/h2>\n
\u0642\u0633\u0645 \u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n
\nThe LSG-6000 supports luminaires with a maximum mass of 50 kg and a diameter of up to 1.2 m, making it suitable for industrial and street lighting fixtures. The LSG-1890B accommodates luminaires up to 20 kg with a diameter of 1.0 m, ideal for indoor LED modules and compact automotive lights. The choice depends on your typical product portfolio.<\/p>\n
\nYes, both models output IES LDT, CIBSE TM-14, and Eulumdat formats natively. These files are directly importable into lighting design software such as Dialux Evo and Relux Suite, enabling immediate simulation of photometric performance in architectural and urban lighting projects.<\/p>\n
\nThe LSG-1890B incorporates a baffled black anodized interior and a limiting aperture before the photometric detector. Additionally, dark current compensation is applied in real time via a dedicated reference photodiode, effectively reducing stray light contributions to below 0.01% of the measurement value at low light levels.<\/p>\n
\nFor medical lighting, the goniophotometer must adhere to IEC 60601-2-41 requirements, particularly for illuminance uniformity and color temperature stability. The LSG-6000 option includes a colorimeter head that measures CCT and chromaticity coordinates simultaneously, with uncertainty margins compliant with the standard\u2019s \u00b110% illuminance uniformity tolerance.<\/p>\n
\nLISUN offers leasing programs through partnered financial institutions, with terms ranging from 12 to 48 months. Typical monthly payments for an LSG-1890B base model start at approximately \u20ac750. This arrangement allows R&D laboratories with limited capital expenditure budgets to access high-end photometric equipment while maintaining cash flow for other operational needs.<\/p>","protected":false},"excerpt":{"rendered":"