Various add-on optics are available to change the imaging conditions during Radiance measurement (available for spectraval 1501-focus).
Special versions of the device are spectraval 1501-HiRes (with an increased optical resolution), spectraval 1501-NIR (with a wavelength range up to 1000 nm) and spectraval 1501-LAN (with LAN interface instead of Bluetooth).
For how to install and how to use the JETI spectraval 1501
| Description | Applications | Interfaces | |
| spectraval 1501-HiRes | Increased optical resolution (FWHM 2 nm) | USB2.0 and Bluetooth | |
| spectraval 1501-NIR | Extended wavelength range from 380 to 1000 nm | USB2.0 and Bluetooth | |
| spectraval 1501-focus | Compatible with add-on optics | USB2.0 and Bluetooth | |
| spectraval 1501-LAN | Additional LAN interface, e.g. for production environment | USB2.0 and LAN |
| spectraval 1501-HiRes | Description Increased optical resolution (FWHM 2 nm) |
Applications |
Interfaces USB2.0 and Bluetooth |
spectraval 1501-NIR |
Description Extended wavelength range from 380 to 1000 nm |
Applications |
Interfaces USB2.0 and Bluetooth |
spectraval 1501-focus |
Description Compatible with add-on optics |
Applications |
Interfaces USB2.0 and Bluetooth |
spectraval 1501-LAN |
Description Additional LAN interface, e.g. for production environment |
Applications |
Interfaces USB2.0 and LAN |
Optical parameters
Dimensions |
Measuring quantities
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All accessories of spectraval 1501 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 1501 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.
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.
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.
Dolby/realD filter cap pairs
The calibration of 3D projectors needs to be done through the right and left eye glasses. spectraval 1501 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.
Neutral density filter
spectraval 1501 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.
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.
General applications |
Display and projection measurement |
LED measurement |
Lamps
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Light effects
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Miscellaneous
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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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Here you will find an assistance on how to use a spectroradiometer spectraval 1501.
If you do not have access to YouTube, you can also watch the videos directly here on jeti.com
Apple Inc. has decided to buy 2 JETI spectraval (1501 & 1511). We are honoured to know that our equipment is being used by one of the world's largest technology companies. 
Tohoku University looks back on a 400-year history. Today, the university continues to reach out to the world in the pursuit of truth and comprised a global network of over 300 overseas universities and research centers.
TechTest s.r.o., a Czech company, has been involved in surface finishing and pre-treatment, mechanical engineering and the development of electronic devices for more than 20 years. We are pleased that the customer will be using a JETI spectraval 1501 in the future to achieve their demanding goals. We shipped the device today.
Good news from Japan: BARCO, Japan (Cinema Division) has decided to buy another JETI spectraval 1501. 
We are proud to announce that Iwate Prefectural University has chosen a JETI spectraval 1501. 
Today we delivered a JETI spectraval 1501 to CERN.
The prestigious National Film Institute of Hungary chose a JETI spectraval 1501 with stray light protection tube for its work. 
Hifi.de, the leading German-speaking Internet platform in the home entertainment sector is using a JETI spectraval 1501 for testing monitors and TV sets now. 
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