Light Stimulating Device

  • Model: LSD-1

Description

Optogenetics is a biological technique which involves the use of light to control cells in living tissue, typically neurons, that have been genetically modified to express light-sensitive ion channels. Optogenetics is now an important research method in the neuroscience community.

ALA Scientific’s Light Stimulation Device (LSD-1) can be incorporated into existing electrophysiology setups where light sensitive ion channels are being studied.  Optical stimulation over standard electrical stimulation techniques affords researchers the advantage of non-invasively stimulating targeting areas.

Key features of the LSD-1 include:

  • LED intensity control via manual knob or via analog signal for computer control
  • Easily changeable LED’s for different wavelength use
  • Low-noise electronics for integration into electrophysiology setups
  • Field illumination when light guide connected to scope optics
  • No warm-up period needed
  • Combine the LSD-1 with the OptoPatcher electrode holder to make a power optogenetic stimulator

 

Details

LSD-1

The LSD-1 uses a single LED to enable the application of a narrow wavelength of light for use as illumination or stimulation of a sample or biological preparation. Using a liquid light guide, or fiber optic cable (sold separately), the LSD’s output can be aimed at a sample on a microscope stage for field illumination to reveal photofluors or other luminescent substances. The light guide can also be introduced to microscope optics by connection to an appropriate port on a microscope to provide field illumination.

 

LSD-1
The LSD-1 via a fiber optic cable can also be connected to the OptoPatcher electrode holder for stimulation through a patch pipette.

 

LSD-1The intensity of the LED can be controlled manually by a dial on the top of the controller, or an analog signal can be connected to the side BNC to provide computer control of the intensity and on/off of the LED via data acquisition system.

If necessary, the LED can be changed to another wavelength via a simple procedure.

Specifications

Universal AC adapter Input 100 – 240 VAC 50/60 Hz
Output 6 VDC @ 2.5 A max output
Power Fuse (5 x 20 mm) 2.0 A Fast Blow 250V
Analog voltage input 0 – 5 VDC
Temperature Range 0°C to 65°C
Enclosure (W x H x D) 13.2 x 9.4 x 8.1 cm (5.20 x 3.7 x 3.2 in)
Enclosure Weight: 0.36 kg (0.8 Lbs.)

 

Wavelengths (nm) Color
465
Blue
520
Green
624
Amber

*These are the wavelengths available at this time due to the LED manufacturer in a state of flux with regard to power and light output. New wavelengths will be listed as they become available.

Downloads

LSD-1 Product Literature

LSD-1 Product Manual

Ordering

Part# Description
LSD-1
One channel light stimulating device using high power LED with 3mm light pipe adapter- specify wavelength when ordering.
LSD-LG
3mm Standard liquid light guide
LED-XXX
Replacement LED module for LSD-1, includes heat sink, LED, PCB and connectors. XXX is specified wavelength
LSD-LG-OPTO
OptoPatch light guide without light guide ferrule and set screw holder to LSD
LSD-Opto-Adapt-Set
200um light guide ferrule and set screw holder to adapt LSD-1 to OptoPatcher