2012 e-catalog - STIL

More documents

Recommendations

Info

GONIO PHOTOMETERS Goniophotometers SELECTION GUIDE SENSORS 3D SYSTEMS SPECTRO COLORIMETERS REFLET goniophotometer “REFLET” is a general purpose goniospectrophotometer for measuring back-scattering and forward scattering from diffusing samples or specular surfaces. A goniophotometer is an instrument for measuring light scattering in the visible spectral band, through a photopic filter V(λ) or in the near infrared range. Characterizaton of backscattering lobes (angular reflectance) and forward scattering lobes (angular transmittance) of samples reveals the optcal propertes of materials and serves as a useful tool in industrial and scientfic research of light scattering and light emission mechanisms and of surface propertes (texture, roughness, polish quality…). Goniophotometry is fundamental to the understanding of visual percepton of objects: in our daily experience the observer, the objects and the natural lightng (sun) are always in moton, so that illuminaton and observaton angles are constantly varying. CAD/CAM Software uses data based on goniophotometric measurements for providing a realistc representaton of complex scenes. The spectrograph opton allows analysis of the scattered light; at each angular configuraton they provide an entre spectrum, so that the reflectance (or transmittance) of the sample can be measured independently at each individual wavelength. Goniocolorimetry is fundamental to study effect materials (automotve paintng, fabrics). Features - Real BRDF / BTDF measurement - Full hemisphere (2π sr) - Visible or near infrared range, - Selectable spot size - Very high dynamic range (1:10 9 ) - High angular resoluton (0.1°) - Operates in ambient light conditons - Compact, portable system 48 www.stlsa.com E1204
SELECTION GUIDE SPECTRO COLORIMETERS GONIO PHOTOMETERS SENSORS 3D SYSTEMS Goniophotometers REFLET technical specifications Model REFLET-90 REFLET-180 Light Box Spot size on the sample surface Illuminance on the sample Goniometer ILLUMINATION Halogen 100W bulb Option: 6-positions filter wheel (color & ND filters) Manually adjustable from Ø1 mm to Ø13 mm Manually selectable from 100 lux to 25000 lux REFLECTION MODE - 0°-90° motorized - Angular resolution: 0.1° - Positioning precision: 0.5° TRANSMISSION MODE - Fixed, θ = 180° DETECTION Integrated-flux Detector Very High Dynamic range (10 9 ) REFLECTION MODE - 0°-180° motorized - Angular resolution: 0.1° - Positioning precision: 0.3° TRANSMISSION MODE - 0°-180° motorized Spectrometer Optical system Goniometer Polarizer/Analyzer set (option) Useful range: 400-900 nm Spectral resolution : selectable (0.6, 1, 5 or 10 nm) 3 manually interchangeable optical blocs: Optical bloc 1 2 3 Angular acceptance ± 2° ± 1.1° ± 0.04° Observed area size Ø14mm Ø8mm Ø6mm θ: -90° to 90° motorized φ: -90° to 90° motorized Angular resolution: selectable ( 0.1° 1° ) Positioning precision: 0.5° MEASURING TIME Rapid insertion 0°-90° manual rotation 180° θ-profile “Integrated flux” mode: 30 s “Spectrometer” mode: 10 s REFLET optical head Applications - Optcal surface characterizaton: • Reflectors for luminaries • Automotve headlights reflectors • Scattering losses of lenses - Light source characterizaton: • LCD backlightng - Visual appearence: • Database for realistc rendering software - Paints and inks: • automotve metal paints • angular-effect colored inks • Countertyping - Security: • Watermarking - Surface characterizaton of: • metals, powders, paper, ceramics, plastc automotve angular-effect colored inks E1204 www.stlsa.com 49
Page 1 and 2: NON CONTACT MEASUREMENT SOLUTIONS S
Page 3 and 4: SELECTION GUIDE SENSORS 3D SYSTEMS
Page 9 and 10: SELECTION GUIDE SPECTRO COLORIMETER
Page 47: SELECTION GUIDE SPECTRO COLORIMETER

2012 e-catalog - STIL

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?