LGS 350 Goniophotometer mid-sized SSL light sources and LED modules
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The features at a glance Type C goniophotometer with horizontal optical axis For samples up to max. 700 mm diameter and 8 kg weight Accurate determination of the luminous intensity distribution and luminous flux Angular-resolved analysis of spectral and colorimetric quantities Data export in IES and EULUMDAT format Perfect for mid-sized SSL light sources and LED modules The LGS 350 Goniophotometer/Goniospectroradiometer was developed for the analysis of angle-dependent spatial radiation properties from small to medium-sized SSL luminaires and lamps, and LED modules. The test specimen is...

The optical probe of the spectroradiometer or the photometer head for taking measurements is placed outside the photometric distance and attached to a stray light tube adjusted to the measuring distance and the sample size. The measuring distance should be 10 to 15 times the diameter of the light source being tested. The goniometer unit The LGS 350 Goniometer rotates the test specimen in the gamma and C axes. The horizontal alignment of the CIE 121-1996 coordinate system facilitates a particularly compact test setup. Both axes can be operated simultaneously and can be moved smoothly and...

The full spectrum of measuring options The comprehensive accessories significantly expand the range of measuring options offered by the LGS 350. A universal sample holder for mid-size LED modules and lamps, and a lamp holder for standard fittings of the type E10, E27, E40, etc. are supplied. Sample holder with LED-870 test adapter for LED arrays and modules Photometric and colorimetric measurements Sample holder with LED-850 test adapter for single LEDs Sample holders for TEC test adapters of the LED-850 and LED-870 series are available to plug and go. The test adapters facilitate the...

within a few minutes. Even pulse-width modulated LEDs with cycle frequencies of 80 Hz to 10 kHz can be measured precisely using the adaptive filtering and digital signal processing of the innovative DSP 10 Photometer. Measurement sequences in SpecWin Pro SpecWin Pro software powers the outstanding productivity of the LGS 350. Two measurement modes are supported. Firstly, the sequence mode allows spatial radiation patterns of the test specimen to be recorded for gamma and C axes in defined angular increments. All measured data are available for subsequent evaluations. Secondly, the test...

Technical specifications Model Equipment setup Stable base with integrated LGS Controller Benchtop version with LGS Controller in a separate 19” rack 14 U in height; 10 U occupied, 4 U free 9 U in height, fully occupied, optionally more Height of the optical axis Goniometer CIE goniometer type Type C with horizontal optical axis Stepper motors Angular range C axis -70° to +250° within limit switches, -10° to +190° used for measurements Angular range γ axis Resolution of the angle encoder Angular speed C axis 16 speeds selectable from 2.5°/s to 36°/s Angular speed γ axis 16 speeds selectable...

Ordering information Order no. LGS 350 Goniometer with stable base; 2-axis goniometer in type C configuration with horizontal optical axis; integrated 19” rack for LGS Controller (includes stepper-motor control and space for another 2 modules); without photometer or spectroradiometer LGS 350 Goniometer in benchtop version; 2-axis goniometer in type C configuration with horizontal optical axis; separate 19” rack for LGS Controller (includes stepper-motor control and space for one further module); without photometer or spectroradiometer Optional 115 VAC power supply unit for LGS 350 Optional...

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