 Low
Stray Light and Excellent Throughput
The Torus Miniature Spectrometer from Ocean Optics is
a Visible range (360-825 nm) unit that delivers low stray light
(0.015% at 400 nm) and
high throughput.
Torus delivers scientific-grade performance with
outstanding thermal stability, making it a brilliant choice for
color measurement of LEDs and absorbance measurements up to 3.0 OD.
For Torus, we use a variable line spacing grating
with 550 (+/-2) grooves/mm groove density at center and a nominal
blaze wavelength of 400 nm. This design yields an optical bench in
which light can be manipulated more efficiently.
The concave grating also helps to improve thermal
stability of the Torus. Wavelength drift is nearly eliminated and
peak shape stays the same over a wide temperature range. As a
result, Torus makes possible precision metrology, fluorescence and
absorbance applications with demanding stray light and thermal
stability requirements.
Typical
Applications
Torus is the perfect solution for a wide range
of applications where low stray light, high throughput and thermal
stability are necessary:
- Absorbance of optically dense solutions
- Precision measurement of LEDs, lasers and
other light sources
- Trace gas amounts in the atmosphere
- Medical dosimetry in tissue and biological
media
- Fluorescence from solid surfaces and
backscattering/fluorescence in solutions and powders
Stray Light Performance of Torus Spectrometer:
Sample Results with Torus
Spectrometer:
Pick Your Torus
TORUS-25
Concave Grating Spectrometer
Pre-configured with
25 µm Slit |
TORUS-25-OSF
Concave Grating Spectrometer
Pre-configured with
25 µm Slit and
Order-Sorting Filter |
TORUS-50
Concave Grating Spectrometer
Pre-configured with
50 µm Slit |
At a Glance
|
Physical |
| Dimensions: |
149.9 mm x 119.4 mm x 63.5 mm |
| Weight: |
954 g (2.1 lb) |
|
Detector |
| Type: |
Sony ILX511B |
| Range: |
200-1100 nm |
| Pixels/size: |
2048 |
|
Spectroscopic |
| Wavelength range: |
360-825 nm |
| Optical resolution: |
<1.6 nm FWHM over the spectral
range |
| Signal-to-Noise ratio: |
250:1 at full signal |
| A/D resolution: |
16 bits |
| Dark noise: |
50 RMS counts; 300 counts peak to peak |
| Dynamic range: |
8.5x107 (system); 1300:1 (single
acquisition) |
| Integration time: |
1 ms - 65 s |
| Stray light: |
0.015% SRPR @ 400 nm |
| Wavelength thermal stability: |
<0.025 pixels oC |
| Corrected linearity: |
>99% |
| Certification: |
CE Mark, RoHS |
|
