Optional accessories for specbos and spectraval
Each front end accessory changes the sensitivity of the spectroradiometer, therefore an individual calibration file is necessary for each accessory.
The specbos 1211-2 can store up to 12 calibration sets. The front ends can be coded that up to three calibration files will be selected automatically if the related accessory is attached (the fourth is the calibration of the spectroscopy instrument without accessory).
Spectraval 1501 and 1511 has an electronic sensor and can detect up to 8 accessories after calibration.
Diffusors
specbos 1211-2 / specbos 1211
Standard diffusor (ACC 013/1)
A standard diffusor is available to extend the measuring possibilities of specbos 1211-2 to spectral Irradiance.
Diffusors with attenuation filter (ACC 013 ODx.x)
specbos 1211-2 with its standard diffusor can measure up to about 150.000 lx (typical white LED spectrum). If it is necessary to measure higher Illuminances, then a special diffusor with additional attenuation filter can be used. It is possible to measure illuminance up to 1.500.000 lx.
Fast diffusors (ACC 013 Med, ACC 013 High)
If low Illuminance levels must be measured, then the measuring time will be long when using the standard diffusor of the device. It is possible to use “fast” diffusors, but only if the cosine matching of the diffusor is not of primary importance, e.g. in case of point like sources.
90° diffusor (ACC 012)
The standard diffusor of the device acts in line to the device. If the Illuminance at a low height above a surface needs to be measured, then the 90° diffusor can be applied. It is also available with attenuation filters to extend the Illuminance measuring range (ACC 012 ODx.x).
In axis remote diffusor (ACC 015-length)
If the measurement needs to be done in locations with limited space conditions then the remote diffusor can be used. It is a diffusor which is coupled to the spectraval device by an optical fiber bundle. The measurement is done in axis to the fiber bundle. Different fiber lengths are available.
90° remote diffusor, (ACC 019-length)
If the measurement needs to be done under limited space conditions and the in axis fiber coupled diffusor is not suited, then the 90° fiber coupled diffusor can be applied. Different fiber lengths are available.
Dome diffusor
The dome diffusor is equipped with a glass dom (silica for specbos 1211UV-2) and it is IP67 tested. It can be mounted on roofs or outdoor walls and allows a detection of the optical sky radiation. The standard length of the fiberoptic bundle is 3 m, so also longer distances between the measuring location and the indoor position of the measuring device can be spanned.
spectraval 1501 / spectraval 1511
Standard diffusor (ACC 032)
The pure spectraval 15x1 measures in spectral Radiance mode. It is possible to convert it into a spectral Irradiance meter by attaching a diffusor.
90° diffusor (ACC 032/90°)
The standard diffusor of the device acts in line to the device. If the Illuminance at a low height above a surface needs to be measured, then the 90° diffusor can be applied. It is also available with attenuation filters to extend the Illuminance measuring range (ACC 032 ODx.x).
90° remote diffusor (ACC 035-length)
If the measurement needs to be done under limited space conditions and the in axis fiber coupled diffusor is not suited, then the 90° fiber coupled diffusor can be applied. Different fiber lengths are available.
In axis remote diffusor (ACC 034-length)
If the measurement needs to be done in locations with limited space conditions then the remote diffusor can be used. It is a diffusor which is coupled to the spectraval device by an optical fiber bundle. The measurement is done in axis to the fiber bundle. Different fiber lengths are available.
Dome diffusor
The dome diffusor is equipped with a glass dom (silica for specbos 1211-UV-2) and it is IP67 tested. It can be mounted on roofs or outdoor walls and allows a detection of the optical sky radiation. The standard length of the fiberoptic bundle is 3 m, so also longer distances between the measuring location and the indoor position of the measuring device can be spanned.
Filters
specbos 1211-2 / specbos 1211
Dolby/realD filter cap pairs
The calibration of 3D projectors needs to be done through the right and left eye glasses. specbos 1211-2 can be equipped with caps containing the filters of Dolby (ACC 014) and realD (ACC 017) projection. The usage of these filter pairs allows a precise measurement of these 3D projection system.
VIS filter (ACC 016)
specbos 1211-2 can be equipped with a VIS filter to reduce its wavelength range to 380 … 780 nm. This is especially interesting for measurements with a low VIS intensity but much signal in IR or UV.
spectraval 1501 / spectraval 1511
Neutral density filter (ACC 033 OD1.0)
spectraval 15x1 can measure up to 100 000 cd/m² (typical white LED spectrum). An additional neutral density filter allows to shift the measuring range towards 10 times higher Luminance levels.
Dolby/realD filter cap pairs
The calibration of 3D projectors needs to be done through the right and left eye glasses. spectraval 15x1 can be equipped with caps containing the filters of Dolby (ACC 053) and realD (ACC 052) projection. The usage of these filter pairs allows a precise measurement of 3D projections.
Flickermeter
ACC Flicker
With the JETI flicker meter the light fluctuations of lamps, luminaires, monitors and projectors can be measured. The accessory can be easily attached to spectraval 1501 / spectraval 1511.
Add-on optics
specbos 1211-2 / specbos 1211 / spectraval 1501 / spectraval 1511
Add-on optics for small spot sizes
specbos 1211-2, spectraval 1501 and spectraval 1511 in their standard configuration can measure in Luminance mode only with diameters of 4 mm and more. Applications as the measurement of small segments of displays or small sized OLEDs may need smaller diameters. Therefore, JETI offers three imaging optics to reduce the measuring diameter.
Add-on optics for measurement of VR/AR glasses
JETI offers add-on optics to perform measurements of VR/AR glasses. These optics are only available for JETI specbos 2501 (equipped with focus add-on).
Please note: It is only possible to use the imaging optics with specbos 1211-2focus, specbos 1211UV-2focus respectively spectraval 1501focus and spectraval 1511focus. Therefore, it is not possible to equip an existing standard model with these optics.
Special imaging optics
In some applications it is necessary to create a specified measuring diameter in a specified distance.
This can be realized with customer specific optics.
Beam shaping optics
It is not necessary to adjust the optics of specbos 1211-2 in Radiance mode, the measuring spot is sharp at any distance and the viewing angle is always 1.8°. If a specific measuring spot diameter is required, this can be set by selecting the appropriate measuring distance. In some cases this is not possible due to space limitations, e.g. in production measurements or in special set ups. Therefore, different beam shaping optics are available.
Misc.
specbos 1211-2 / specbos 1211
Straylight protection tube (ACC 046 scb)
The straylight protection tube prevents the influence of surrounding light on Radiance measurements. It is mainly used for display measurements. The fixed length of the tube is 16 cm.
Battery (only for specbos 1211-BT-2)
spectraval 1501 / spectraval 1511
Straylight protection tube (ACC 046)
The straylight protection tube prevents the influence of surrounding light on Radiance measurements. It is mainly used for display measurements. The fixed length of the tube is 16 cm.
Battery charger for spectraval
Only specbos 1211UV-2
Diffusors
In axis diffusors
Diffusor for specbos 1211UV and 1211UV-2 (ACC 013UV)
Additional Diffusor for specbos 1211UV and 1211UV-2 with filter OD0.5; OD1.0; OD1.5; OD2.0, others on request (ACC 013UV OD X.X)
8 mm Diffusor for specbos 1211UV and 1211UV-2 with short pass filter SP322, wavelength range 230 … 320 nm (ACC 020 SP)
8 mm Diffusor for specbos 1211UV and 1211UV-2 with UG11, wavelength range 250 … 400 nm (ACC 020 UG11)
Diffusor with 8 mm measuring diameter (ACC 026)
Diffusor with 8 mm diameter and 80° aperture (ACC 028)
Dome diffusor
The dome diffusor is equipped with a glass dom (silica for specbos 1211UV-2) and it is IP67 tested. It can be mounted on roofs or outdoor walls and allows a detection of the optical sky radiation. The standard length of the fiberoptic bundle is 3 m, so also longer distances between the measuring location and the indoor position of the measuring device can be spanned.
90° Diffusors
90° diffusor for specbos 1211UV and 1211UV-2 (ACC012UV)
with OD1.0 filter (ACC 012UV OD1.0)
with OD2.0 filter (ACC 012UV OD2.0)
For details please see here.
Fiber extended diffusors
Length 35 cm/UV (ACC 015UV-035)
Length 1 m/UV (ACC 015UV-100)
Length 2 m/UV (ACC 015UV-200)
Length 3 m/UV (ACC 015UV-300)
Length 5 m/UV (ACC 015UV-500)
(other lengths on request)
Fiber extended 90° diffusor
Length 1 m/UV (ACC 019UV-100)
Length 3 m/UV (ACC 019UV-300)
(other lengths on request)
Fiber extended 90° diffusor with OD1.0 filter
Length 1 m/UV (ACC 019UV OD1-100)
(other lengths on request)
Fiber extended diffusor with dome
Length 3 m/UV (ACC 036-300UV)
(other lengths on request)
Accessories for hazard measurement
Accessories for photobiological measurements complete according to IEC 62471
