Various add-on optics are available to change the imaging conditions during Radiance measurement (available for spectraval 1511-focus).
Special versions of the device are spectraval 1511-HiRes (with an increased optical resolution) and spectraval 1511-NIR (with a wavelength range up to 1000 nm).
| Description | Applications | Interfaces | |
| spectraval 1511-HiRes | Increased optical resolution (FWHM 2 nm) |
USB2.0 and Bluetooth | |
| spectraval 1511-NIR | Extended wavelength range from 380 to 1000 nm |
|
USB2.0 and Bluetooth |
| spectraval 1511-focus | Compatible with add-on optics | USB2.0 and Bluetooth |
| spectraval 1511-HiRes | Description Increased optical resolution (FWHM 2 nm) |
Applications |
Interfaces USB2.0 and Bluetooth |
spectraval 1511-NIR |
Description Extended wavelength range from 380 to 1000 nm |
Applications
|
Interfaces USB2.0 and Bluetooth |
spectraval 1511-focus |
Description Compatible with add-on optics |
Applications |
Interfaces USB2.0 and Bluetooth |
Optical parameters
Dimensions |
Measuring quantities
|
All accessories of spectraval 1511 are coded. The software switches to the related measuring mode and the appropriate calibration data will be used when an accessory was attached to the device.
Add-on optics for different measuring geometries
JETI offers a variety of add-on optics to achive certain different measuring geometries.
Standard diffusor
The pure spectraval 1511 measures in spectral Radiance mode. It is possible to convert it into a spectral Irradiance meter by attaching a diffusor.
90° diffusor
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.
In axis remote diffusor
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
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
The dome is equipped with a glass dom and it is IP67 tested. It can be mounted on roofs or outside walls and allows a detection of the optical sky radiation.
Fast diffusors
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.
Neutral density filter
spectraval 1511 can measure up to 100 000 cd/m² (typical white LED spectrum). An additional neutral density filter allows to shift the measuring range towards 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 1511 can be equipped with caps containing the filters of Dolby and realD projection. The usage of these filter pairs allows a precise measurement of 3D projections.
On request.
Straylight protection tube
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.
LED measurement |
Light effects
|
Display and projection measurement |
Miscellaneous
|
TN05 Measuring Ranges of JETI Spectroradiometers (359.01 KB) TN09 Testing the communication with Terminal (275.39 KB) Operating Instructions JETI spectraval (2.45 MB) Operating Instructions JETI LiVal (8.62 MB) Operating Instructions Firmware (448.02 KB) 
JETI LiVal Demo (6.07 MB) JETI LiVal Version 8.0.8 (6.07 MB) JETI LiVal Changelog (692.48 KB)
External softwareJETI does not guarantee the function of JETI products with external software. JETI is not liable for any changes of external software. Please contact the supplier of the external software in case of any problem.External software packages
Hardware related software
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Apple Inc. has decided to buy 2 JETI spectraval (1511 & 1501). We are honoured to know that our equipment is being used by one of the world's largest technology companies. 
Great news! We are very pleased to announce that today we have delivered another spectraval 1511-NIR to the renowned Oregon State University. We think that research, teaching and JETI is a very good combination. 
We are extremely pleased to welcome Panasonic, another renowned customer electronics manufacturer, as one of our customers.
We are very proud to announce that BARCO (USA) has ordered two more JETI spectraval 1511. 
The German broadcasting company "Hessischer Rundfunk" has decided to use JETI spectraval 1511 with stray light protection tube for the calibration of their monitors in the future. We think, this is a good decision :) 
drawing 1511.png