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Technical Information
 

 

The RT-060-SF and the RT-060-IG are 6 inch diameter integrating spheres designed for measurement of reflectance and transmittance. They are suitable for specular included and specular excluded reflectance measurements, measurements of forward- and backscatter, and the measurement of the transmittance or turbid or scattering samples. The RT-060-SF is coated with Spectraflect and is designed for use in the 250 - 2500 nm wavelength range (UV-VIS-NIR). The RT-060-IG sphere, coated with Infragold, is designed for use in the 700 nm - 20 m wavelength region (NIR-MIR).
Sphere Geometry

Both assemblies feature five 1 inch diameter ports to accommodate sample and reference beams necessary for a 9 double beam geometry, as well as port plugs required for 9 single beam geometry. A 0.50 inch detector port is located at the top of the sphere. A specular light trap is included for specular subtraction methods.

The sphere ports are knife-edged to permit collection of wide angle scatter and the baffling is minimized to allow the detector a maximum view of the sphere wall. To ensure high sphere efficiency, the total port area is <5% of the sphere surface area. A detector port is located at the top of the sphere and baffled from receiving direct radiation from the specular, sample and reference ports. The integrating spheres each have a mounting assembly consisting of a rod base with a 1/4-20 boss. The sphere height is easily adjusted.

RTC-060-SF, RTC-060-IG REFLECTANCE/ TRANSMITTANCE INTEGRATING SPHERES WITH CENTER-MOUNT


The RTC-06 0-SF and RTC-060-IG add further versatility to the reflectance/transmittance sphere series. With the addition of center-mounted sample holders, users are able to measure reflectance, and in some cases, transmittance versus incident angle of radiation. The RTC-060-XX spheres feature five ports to accommodate sample and reference beams: three ports are 1 inch diameter, two ports are 1.25 inch diameter. A center-mount stage (described below) is located at the top of the sphere and a 0.50 inch detector port is located at the bottom of the sphere assembly. The RTC-060-XX integrating spheres are mounted on a sturdy "H" frame assembly.

 

Center-Mount Sample Holder

The center-mount sample holder allows for the measurement of reflectance or transmittance versus incident angle of light for a wide variety of samples.

Both jaw-style and clip-style center-mount sample holders are included. The jaw-style may be used for samples that can be clamped. Samples as large as 1 inch by 2 inches and up to 0.38 inch thick can be held by the jaws of the sample holder.

The clip-style center-mount sample holder is designed for thin films or samples which do not have the rigidity to be held by the jaws-type sample holder. Samples up to 1.50 inch by 2 inch by 0. 125 inch thick can be measured using the dipstyle center-mount sample holder.

Samples such as thin films, small glass blanks and thin coating samples may be easily measured for reflectance and transmittance at angles up to 45 by use of either of the center-mount sample holders supplied.

SPECIFICATIONS AND ORDERING INFORMATION

PART NO.

SPHERE DIA. (IN.)

PORTS (NO.)

INPUT PORTS (IN.)

DETECTOR PORT (IN.)

MATERIAL/ COATING

SPECTRAL RANGE

RT-060-SF

6

6

1.00

0.50

Spectraflect

2502500 nm

RT-060-IG

6

6

1.00

0.50

Infragold

700 nm - 20 m

RTC-060-SF

6

5

1.00

0.50

Spectraflect

2502500 nm

RTC-060-IG

6

5

1.00

0.50

Infragold

700 nm - 20 m

 

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