Near-field goniophotometer RiGO801

The full determination of the data of luminaires and lamps becomes more and more important:

• Primary prerequisite of a correct illumination planning
• Simulation, development of luminaires and lamps
• Cataloging and presentation

The goniophotometer type RIGO801 utilizes a new image-resolving CCD measuring technique for determining ray data and luminous intensity distributions.

The correct determination of the luminous intensity distributions (Lid) of lamps and luminaires is performed far within their photometric limiting distance on the basis of image-resolved measurements of luminous intensity distributions. A CCD-camera is moved by a goniometer around the measuring object at rest on a spherical surface, with the radius of this sphere being fixed only by the field angle of the camera. Thus, the goniometer can also be installed in small laboratories.

Advantages

• Full description of the light emission by ray data
• Small dimensions of the set-up
• Measuring in normal position

Result data

• Luminous intensity distributions (LID)
• Ray data available in various formats (e.g. ASAP, SPEOS, LucidShape, LightTools, Zemax, SimuLux)
• Processing and archiving of the LVK data in a photometric database (LumCAT)

The goniometers used for moving the image-resolving luminance measuring devices are realized according to the desired range of the measuring objects and also according to the available laboratory space.

Application

Goniometer for LEDs and small lamps Size of measuring object:  [ 6 x 6 x 6 mm3 - 50 x 50 x 50 mm3 ]
Space required:  [ 600 x 600 x 800 mm3 ]
Movement:
The measuring camera and the illuminance meter are moved on a circular path around the lamp (horizontal ??axis). The lamp itself is turned around a vertical ?-axis.
Travel path:   [ ? = 0° ... 360°, ? = -140° ... 140° ]
Measuring position of the luminaire:   Normal position, standing
Measuring width:  [ 100 mm ]
Positioning accuracy:  [ ? < 0,02°, ? < 0,05° ]
Repetitive accuracy:  [ ? < 0,01°, ? < 0,02° ]

Goniometer for lamps and small luminaires swivelling
Size of measuring object:  [ 20 x 20 x 20 mm3 - 300 x 300 x 300 mm3 ]
Space required:  [ 1300 x 1300 x 1900 mm3 ]
Movement:
     The measuring camera and the illuminance meter are moved on a sphere around the lamp (two independent axes arranged vertically to each other (?, ?)).
Travel path:  [ ? = -2° - 362°, ? = 0° - 360 ]
Measuring position of the luminaire:
Normal position, no movement of the measuring object. The whole goniometer can be swivelled, which permits different measuring positions to be realized.
Measuring width:  [ 270 mm ]
Positioning accuracy:  [ ? < 0,02°, ? < 0,05° ]
Repetitive accuracy:   [ ? < 0,01°, ? < 0,02° ]

Goniometer for luminaires Size of measuring object:   [ ≤ 2000 x 2000 x 2000 mm3 ]
Space required:   [ ≤ 4000 x 4000 x 4900 mm3 ]
Movement:
The measuring camera and the illuminance meter are moved on a sphere around the lamp (two independent axes arranged vertically to each other (?, ?)). mounted to a fixed upper point.
Travel path:   [ ? = -2° - 362°, ? = 0° - 360° ] (upper lamp suspension)
Measuring position of the luminaire:  Normal position, no movement of the measuring object; lamp suspension possible at the top and at the bottom.
Measuring width:   [ 500 - 2000 mm ]
Positioning accuracy:   [ ? < 0,02°, ? < 0,05° ]
Repetitive accuracy:   [ ? < 0,01°, ? < 0,02° ]

Sensors
Image-resolving measuring camera
CCD – digital camera (Kappa), LMK98-3,
V(λ) – full filter-adapted
Digital framegrabber, 12/13 Bit
Changeable lenses, photometrically corrected,distortion-correcte

近場視角測試系統(tǒng),LMK RiGO801

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