Ocean Optics USB2000-FLG - Manual (Page 28)

C: Specifications
22 170-00000-FLG-02-201009
USB2000-FLG Components Table
Ocean Optics permanently secures all components in the USB2000-FLG at the time of manufacture. Only
Ocean Optics technicians can replace interchangeable components, where noted.
Item Name Description
1
SMA 905
Connector Secures the input fiber to the spectrometer. Light from the input fiber enters the
optical bench through this connector.
2 Slit
A dark piece of material containing a rectangular aperture, which is mounted directly
behind the SMA Connector. The size of the aperture (200 µm) regulates the amount
of light that enters the optical bench and controls spectral resolution.
3 Filter
Restricts optical radiation to pre-determined wavelength regions. Light passes
through the Filter before entering the optical bench.
4
Collimating
Mirror
A SAG+, Ag-coated mirror focuses light entering the optical bench towards the
Grating of the spectrometer.
Light enters the spectrometer, passes through the SMA Connector, Slit, and Filter,
and then reflects off the Collimating Mirror onto the Grating.
5 Grating
A #3 (600 lines per millimeter, blazed at 500 nm) grating diffracts light from the
Collimating Mirror and directs the diffracted light onto the Focusing Mirror.
6
Focusing
Mirror A SAG+, Ag-coated mirror receives light reflected from the Grating and focuses
first-order spectra onto the detector plane.
7
L2 Detector
Collection
Lens
Attaches to the Detector to increase light-collection efficiency. It focuses light from a
tall slit onto the shorter Detector elements.
The L2 Detector Collection Lens should be used with large diameter slits or in
applications with low light levels. It also improves efficiency by reducing the effects
of stray light.
8
Detector
Collects the light received from the Focusing Mirror or L2 Detector Collection Lens
and converts the optical signal to a digital signal. Each pixel on the Detector
responds to the wavelength of light that strikes it, creating a digital response. The
spectrometer then transmits the digital signal to the SpectraSuite application.
9 LVF Filters
Optional Linear Variable Filters (LVF) construct systems with excellent separation of
excitation and fluorescence energy. LVF-L Linear low-pass filters fine tune the
excitation source for maximum signal with minimum overlap. LVF-H high-pass filters
are available for the detection side. These filters are optional.