 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 is a brilliant choice for color measurement of LEDs and a wide range of other challenging applications.
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:
- Trace gas amounts in the atmosphere
- Absorbance of optically dense solutions
- Precision measurement of LEDs, lasers and other light sources
- 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: |
<2.0 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 nm/ ºC |
| Corrected linearity: |
>99% |
| Certification: |
CE Mark, RoHS | | 
