in the 190-850nm or 280-900nm ranges
- High performance
concave grating optics for UV-VIS applications
- Superb spectral
imaging with no mirrors for lowest possible stray light
- Enhanced UV
Sensitivity & Flat-field imaging for uniform resolution
- No optical
adjustments for extreme thermal stability and ruggedness
Cooled Detector (TEC) upgrade increases S/N by 60%
(Super Range) for wide range applications 200-1100nm
(High Resolution) for high resolution applications <0.4nm
BLACK-Comet concave grating spectrometers deliver high
performance spectral analysis in the UV-VIS-NIR wavelength
range covering 190-850 (model C-SR) or optionally 280-900nm
Grade Optical Performance The BLACK-Comet UV-VIS-NIR
spectrometers utilize a Dual Blaze 40mm diameter concave grating
with aberration correction to provide the best optical performance
of any compact spectrometer on the market.
spectral shapes by reducing comma and astigmatism found
in plane grating spectrograph designs.
light reduction - The spectrograph architecture does
not utilize mirrors, and therefore provides the lowest possible
stray light, which is especially helpful for UV applications.
sensitivity - due to the spectrometers ability to reduce
light scatter, especially high power UV light, the BLACK-Comet
provides two to three times enhanced UV sensitivity as compared
to plane grating/Czerny Turner optical configurations.
resolution The concave grating produces a flat
field on the CCD detector creating uniform resolution over
the entire spectral range.
Stability - Optical bench architecture without mounting
turrets and optical posts (typically in most USB spectrometers)
decreases thermal expansion and contraction and increases
overall system performance with temperature change
BLACK-Comet Optics- The concave holographic grating is aberration
corrected and has no mirrors to minimize stray light with superb
imaging projecting a flat field on the detector
blaze super range models provide wide wavelength ranges.
Choose from the tables of standard models with various slit
options for your choice of slit resolution. New and improved
electronics with a high speed 16-bit digitizer allows for
fast data acquisition and a signal to noise of 1000:1!
The detachable spectrograph assembly and control electronics
are protected inside a rugged metal enclosure, suitable for
portable, process, lab, and field applications.
connection (up to 8) can be daisy chained together and
are able to run simultaneously.
BLACK-Comet-SR UV-VIS-NIR spectrometers can be powered
directly from your PCs USB-2 port. A single strand fiber
optic cable or probe assembly delivers input via standard
SMA 905 fiber optic connector with a choice of cable lengths.
Memory with pre-set calibrations and spectrometer settings
and snap shot memory to provide instantaneous spectral image
from the highly sensitive CCD with 2048.
Speed Electronic Interface can be attached directly to
a computers USB port for high speed data transfer. Options
for Wifi/ethernet communication available as well as other
interfaces. ContactUs@StellarNet.us for more info.
Spectrometers from $2950 / €2490
with 6 decades
69 x 100 x 150 mm
||< 1 nm
Resolving Res. with 25um slit
mA via USB port
CCD, PDA opt.
|| 3x / 40x
faster than USB-1
||14 x 200
||1ms to 65s
||14, 25, 50,
435nm; 0.2% at 200nm
|| f/2, Flat
field No mirrors
NA single fiber
||Win XP, Vista,
7, 8, & 10
program & apps
free programs for:
TE Cooler upgrades reduce the temperature of the CCD to 15 degrees
below ambient and increase instrument S/N by 60% at long exposures,
improving low light measurement quality for fluorescence and other
weak emission applications. In order to achieve low temperatures
the TEC add-on includes a new sealed and isolated detector enclosure
with specialized heat sink and air flow design for added stability
and cool operation. TEC Upgrade Price $1,650
TE Cooler upgrades reduce the temperature of the CCD
to 15 degrees below ambient and increase instrument S/N
drastically by reducing noise over 50% at long exposures.
This upgrade improves the compact spectrometers measurement
quality and makes it a perfect solution for fluorescence
and other weak emission applications. In order to achieve
low temperatures the TEC add-on includes a new sealed and
isolated detector enclosure with specialized heat sink and
air flow design for added stability and cool operation.
Price -> $1,650
spectral measurement of a dim backlit LED display. The display
measurement is performed with a BLACK-Comet-TEC spectrometer
with the thermo-electric cooler ON and OFF at a 30 second
exposure time. The background noise is drastically reduced,
increasing instrument detection capabilities.
Optical Metrology and Colorimetry
BLACK-Comet UV-VIS spectrometer model CXR-25 (-25 denotes slit size)
measuring the transmission of a blue plastic film using a SL1 tungsten
halogen lamp, TXF-4 transmission fixture, and two F600-VIS-NIR fiber
optic cables and providing colorimetric data in CIELAB color space.
Go to the colorimetry page.
Solar Irradiance Monitoring XXX
BLACK-Comet-SR in DSR-CSR-512 system measuring solar irradiance. The
dual blaze concave grating allows for superb spectral imaging from
Spectral sensitivity is one of the most important factors in choosing
the proper miniature spectrometer. The concave grating optical design
allows for high sensitivity and a smooth spectral distribution over
the wavelength range as shown in the above spectrum of a Tungsten
UV-VIS Absorbance System
StellarNets Low Cost UV-VIS Spectrometer system is composed
of the BLACK-Comet research grade concave grating spectrometer, a
SL5 high stability light source with integrated cuvette holder, and
an optical coupling fiber. Above is the absorbance spectrum of various
TTL input trigger to enable spectrometer scan $100
Units may be daisy chained via USB-2 hub allowing simple configurations
for dual and multi-beam process applications. 8 BLUE-Wave spectrometers
can be operated at once!
The system includes a high speed plug & play interface using
Enables PCs with WiFi to run all StellarNet spectrometers attached
to the kit, which may optionally be battery powered. SCD converts
USB to Ethernet that feeds high speed WiFi wireless router (not
included). Works on WinXP, Win 7-32bit and Win7-64bit.
- Optical Metrology