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LS-450 Blue LED Pulsed Light Source
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The
LS-450 Blue LED Pulsed Light Source is an LED that produces either pulsed or continuous output at 470 nm -- the blue region -- for fluorescence measurements.
The source is designed for use with Ocean Optics spectrometers
configured for fluorescence, with Fiber Optic Oxygen
Sensors, and with sampling optics such as the CUV-UV-ALL
4-way Cuvette Holder. |
Features
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Excitation Source. Produces either pulsed or continuous output at 470 nm for high-sensitivity fluorescence applications
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Software Operation. Lamps can be turned on/off and used in pulsed or continuous mode through manual or software operation
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Synchronization with Detector Scan Rate. Configure lamp pulse rates via jumper blocks on the lamp or on the spectrometer
The LS-450 Blue LED is
$577.
The LS-450 can be configured to operate in pulsed or continuous mode through manual or software operation.
Also available are additional wavelength-specific LEDs (see
below) for use with the LS-450 housing. These LEDs are $100 each.
LS-450 Stand-alone Version
The LS-450
connects to the spectrometer via an interface cable; an SMA 905 Connector
allows coupling to fiber optics. You can configure the light source to operate through a jumper block on the source or on the circuit board of
an S2000 Spectrometer.
Also available is the LS-475
Pulsed Blue LED, which is distinguished by its wavelength
(interestingly enough, 475 nm) and its fan-cooled assembly
Rack-mount Versions.
The R-LS-450 Blue LED is the rack-mount version of the LS-450. For
multiple-LED users with limited space in a desktop or rack box, the
R-LS-450-2 (2 LEDs) rack-mount version is another option. You can configure operation of the R-LS-450 and R-LS-450-2 through three jumper blocks on the circuit board of the R-LS-450.
In addition, the LS-450 can be installed
into an SF2000 Spectrophotometer. The LS-450 is mounted onto a
card, and then stacked with the spectrometer in the same housing.
LS-450 for Use with USB2000 Spectrometer
The
USB-LS-450 module connects to the USB2000 Spectrometer via the spectrometer’s 10-pin connector. The spectrometer provides power to the LED and also enables
synchronization functions and I2C communications. By adding a sampling
optic and interfacing to a notebook PC, the USB2000-with-USB-LS-450 setup
provides a convenient, field-portable system.
Benefit for Fiber Optic Oxygen Sensor Users
The USB-LS-450 features a built-in, 24-bit analog-to-digital converter that is configured for a 100 ohm platinum RTD. The USB-LS-450’s on-board memory can be programmed to store temperature and oxygen calibration coefficients.
LS-450 Specifications
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LS-450, R-LS-450, R-LS-450-2
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USB-LS-450 Drive Module
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| Physical dimensions: |
90 mm x 50 mm x 32 mm
(LS-450 only)
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89 mm x 102 mm x 38 mm
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| Power consumption: |
25 mA @ 12 VDC
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60 mA @ 5 VDC
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| Power output (minimum): |
50 µW into 600 µm fiber
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60 µW into 600 µm fiber
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| Stability: |
<1.0%
after 2-minute warm-up |
<1.0%
after 2-minute warm-up |
| LED drive current: |
NA |
20 mA +/-150 mA |
LS-450 Ordering Information
| Item |
Description |
Price |
| LS-450 |
Blue
LED produces output at 470 nm; includes interface cable to S2000; can
be mounted with an S2000 or installed into rack or desktop boxes |
$577 |
| R-LS-450 |
Rack-mounted
version of Blue LED produces output at 470 nm; includes interface
cable to S2000 |
$808 |
| R-LS-450-2 |
Rack-mounted
version of dual Blue LEDs produces output at 470 nm; includes
interface cable to S2000 |
$635 |
| USB-LS-450 |
Multi-purpose
LED module for USB2000-FL Spectrometers has built-in 24-bit A/D
converter to accommodate a 100 ohm Resistance Temperature Device;
also has on-board memory to store temperature and oxygen calibration
coefficients when used with Oxygen Sensors |
$635 |
| USB-LS-450-4/20 |
Add-on
to USB-LS-450 LED drive module provides 4-20 mA output. |
Call for Price |
| USB-LS-450-TP |
Platinum
100 ohm Resistance Temperature Device, for use with USB-LS-450 LED
module. |
$115 |
If the 470-nm wavelength bulb that comes installed into the LS-450 is not the right excitation source for your application, you can easily remove the bulb and insert one of the LEDs listed below. Each bulb comes in a
12.7-mm reflector barrel for easy installation and better alignment.
| Item |
Description |
Color |
Power* |
Price |
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| LED-380 |
380 nm wavelength UV LED used in place
of the 470 nm bulb in the LS-450 |
UV |
45 µW |
$116 |
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| LED-395 |
395
nm wavelength
VIS LED used
in place of the 470 nm bulb in the LS-450 |
Violet |
25
µW |
$116 |
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| LED-518 |
518
nm wavelength VIS LED used in place of the 470 nm bulb in the LS-450 |
Green |
35
µW |
$116 |
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| LED-590 |
590 nm wavelength
VIS LED used
in place of the 470 nm bulb in the LS-450 |
Yellow |
40 µW |
$116 |
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| LED-640 |
640
nm wavelength VIS LED used in place of the 470 nm bulb in the LS-450 |
Red |
50
µW |
$116 |
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| LED-WHITE |
450-630 nm wavelength
VIS LED used
in place of the 470 nm bulb in the LS-450 |
White |
50
µW |
$116 |
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| LED-KIT |
Set of 6 LEDs: LED-380,
LED-395,
LED-518, LED-590, LED-640 and LED-WHITE |
Mixed |
Mixed |
$577 |
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(*Power into a 600
µm Patch Cord Optical Fiber Assembly)
Absolute Spectral Output for Ocean Optics LED
Bulbs
LED
Bulbs: 380 nm, 470 nm, 518 nm and 640 nm
LED
Bulbs: 395 nm, White and 590 nm
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