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DORIC LEDFLS User Manual

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LED Light Source
User Manual
Version 2.1.1

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Summary of Contents for DORIC LEDFLS

  • Page 1 LED Light Source User Manual Version 2.1.1...

  • Page 2: Table Of Contents

    ..........18 3.6 Stand-alone mode (without Doric Neuroscience Studio Software) .

  • Page 3: Safety Information

    Doric LED Drivers are provided with a safety interlock connector on its rear panel (Fig. 1.1a). When the interlock circuit connector is shorted with the interlock plug, the driver is enabled. The shorting electric wire in the interlock plug can be removed and replaced by the safety interlock circuit of the laboratory.

  • Page 4: Activation Safety Features

    1.2 Activation Safety Features The built-in safety features (including the Micro-controller, Key Switch, Interlock Plug and Current Driver) are con- nected in series in the driver circuits, as shown in the block diagram (Fig. 1.2). This means that if any single safety feature are not properly in place, the light source cannot be activated.

  • Page 5: Device Overview

    Figure 2.1: Connectorized LED The Doric Connectorized LED is a compact module that couples a high brightness LED into an optical fiber via an FC receptacle. It is available in wavelengths from 365 nm to 940 nm, as well as white (5500 K temperature). The module connects to the Doric LED Driver over the pigtailed M8 electrical cable.

  • Page 6: Connectorized Leds - High Power (Cled_Hp)

    Figure 2.3: Connectorized High Power LED The Doric Connectorized LED - High Power is a compact module that handles larger powers than the classic CLED. High Power CLEDs are available in four wavelengths: 450 nm, 475 nm and 560 nm. As with the classic CLEDs, High Power LEDs are connected to the Doric’s LED Driver using a pigtailed M8 electrical cable.

  • Page 7: Combined Leds (Ledc)

    2.3 Combined LEDs (LEDC) The Doric Lenses Combined LEDs allows the combination of multiple LED light sources of different wavelengths into a single fiber connector output. Each module is provided with a stand for vertical orientation. A LED Driver is required to use the Combined LEDs.

  • Page 8: Led + Fiber-Optic Rotary Joint (Ledfrj)

    2.4 LED + Fiber-optic Rotary Joint (LEDFRJ) The Doric LED + Fiber-optic Rotary Joint are rotary joints integrated with one or several LEDs. This allows higher throughput in comparison with conventional Fiber-optic Rotary Joints combined with a Connectorized LED light source.
  • Page 9 • The M8 connector ports are used to provide power to the LEDs. There is a single port per LED. The pinout can be found in Figure 5.1. • The Beam aperture outputs light. The standard model uses an FC-type connector. •...

  • Page 10: Led Drivers

    Figure 2.7: LED Drivers; 1-, 2- and 4-channel Each LED Driver channel can be controlled manually or via the Doric Neuroscience Studio software. During stand-alone operation, it is possible to change the operating mode (CW, external TTL, or external analog mode) and the current sent to each LED.
  • Page 11 Figure 2.8: Top view of a 4-channel LED Driver • The Power key must be properly inserted into the key switch to enable operation of the light source(s) connected to the driver. Note that, despite its similar shape, the power key is not a standard micro SD card such as those used in some digital cameras.

  • Page 12: Led Fiber Light Source (Ledfls)

    2.6 LED Fiber Light Source (LEDFLS) The Doric LED Fiber Light Source integrates the LED Driver and the light source(s) into one convenient device that reduces the number of optical connections and the system’s overall footprint. The Doric LED Fiber Light Source comes in different packages from 1 to 4 channels, which can be used stand-alone or with a computer via USB connection.
  • Page 13 Figure 2.12: LED Fiber Light Sources: 1-, 2- and 4-channels. Figure 2.13: LED Fiber Light Source front • The LCD display allows easy operation and monitoring. The LCD display shows the mode for each channel as well as the constant or maximal current in mA. •...
  • Page 14 • The Interlock connector plug (Fig. 2.14) allows the user to connect the driver to an interlock system. It is recommended to connect the interlock plug to a laboratory interlock system. This is critical when using LEDs in the UV or Infrared spectrum, as they are invisible to the naked eye. •...

  • Page 15: Operation Guide

    Operation Guide To reduce the risk of eye injury, it is sound practice to NOT CONNECT/DISCONNECT OPTICAL FIBERS when the light source is turned on Notes: • On all relevant devices, it is critical not to block or insert objects into the ventilation grids as this could block airflow and reduce cooling efficiency.

  • Page 16: Combined Leds Setup

    3. Connect the Connectorized LED (CLED) to the driver. Align the M8 connector pins in the female receptacle on the Doric LED driver, slide in and screw the nut in place. 4. Connect the CLED Fan Micro-USB 5V Input to the LED Driver 5V 1A Front USB Port with the provided USB cable.

  • Page 17: Led Fiber Light Sources Setup

    2. For optimal performances, place the module in a well ventilated area, especially if used in continuous mode for long period of time. Overheating will affect LED power and reduce its lifetime. 3. The LED Fiber Light Source is operated with the driver’s stand-alone capabilities (Section 3.6) or using the Doric Neuroscience Studio software (Section 4).

  • Page 18: Fc Connector Installation

    3.5 FC Connector Installation 1. Clean the optical fiber connector before insertion. Use isopropanol and a lint-free wipe. 2. With an FC connector, the connector key must be oriented to enter within the receptacle slot to ensure proper connection (Fig. 3.3). Figure 3.3: FC connector, Fiber Installation WARNING! To reduce the risk of eye injury, it is sound practice to...

  • Page 19: Stand-Alone Mode (Without Doric Neuroscience Studio Software)

    3.6 Stand-alone mode (without Doric Neuroscience Studio Software) The following sections details stand-alone operation of the LED driver and the LED Fiber Light Source. For installation of the light sources in stand-alone mode, see section for Connectorized LED, for Combined LEDs, for LEDs with fiber-optic rotary joint.
  • Page 20 External Analog (Ext. Ana.) The External Analog mode is similar to the External TTL, except that the driving current is proportional to the voltage applied to the BNC input connector (Fig. 3.6a). On the input BNC, a maximum voltage signal corresponds to a maximum of 2000 mA current.

  • Page 21: Connect To Doric Neuroscience Studio Software

    USB cable to the computer for a proper installation. 2. Install the Doric Neuroscience Studio Software on the computer. Double-click on the DoricNeuroscienceStu- dioSetup_vX.X.X.X.exe file located on Doric USB memory stick supplied with the LED driver or download it from Doric Lenses website.

  • Page 22: Doric Neuroscience Studio

    Doric Neuroscience Studio Doric Light Sources can be controlled by the Doric Neuroscience Studio software. These include LED Modules, Laser Diode Modules, and LISER . The interface is separated into two main sections, Control & Settings and Light Source the Acquisition View. Each light source driver has several Channels, each one controlling a light source of its given type.

  • Page 23: Controls And Setings

    The Progression bar displays the progression of the sequence in %, while the Time Elapsed counter displays the progression in hh:mm:ss:zzz format. f) The Launch button starts the sequence. 3. The Interlock indicator displays when the interlock is correctly connected, and when disconnected (more details in the section 1.2). Chapter 4. Doric Neuroscience Studio...
  • Page 24 3. The Save Configuration button is used to save the Light Source configuration in a .doric format. 4. The Load Configuration button allows a Light Source configuration in .doric format to be loaded. Recorded data files also contain the configuration used during the experiment and this configuration can be loaded using this button.

  • Page 25: Channel Configuration

    4. The Sequence Preview section shows a visualization of the output sequence that will be generated by the current configuration. 5. The Add button will save the current channel configuration and enables a new channel to be configured. The Close button will close the window without saving the current channel configuration. Chapter 4. Doric Neuroscience Studio...
  • Page 26 WITH PULSED SIGNALS, AS IT CAN OTHERWISE DAMAGE THE LIGHT SOURCE. • When using a CLED module, a CLED_HP module or a LEDFLS module, the Low-Power checkbox will appear. When selected, this allows reduced-power signaling for the same voltage. This allows low-power signals to be more stable in time.
  • Page 27 When the sequence is completed, it will restart with the next input pulse. (a) Triggered Non-Repeatable Sequence (b) Triggered Repeatable Sequence Figure 4.8: Uninterrupted Sequence Mode Chapter 4. Doric Neuroscience Studio...
  • Page 28 TTL signal instead of an analog voltage output proportional to the LED current. The output will send out a 5 V signal whenever the input current is >0 mA. This can be used even if a light source is not connected. Chapter 4. Doric Neuroscience Studio...
  • Page 29 The Continuous Wave mode (Fig. 4.13) produces a continuous signal at the chosen current. This mode can only be triggered manually. When this mode is active, the driver channel will show CW under MODE. This mode has no additional sequence options. Figure 4.13: Constant Current Mode Driver Signal Chapter 4. Doric Neuroscience Studio...
  • Page 30 To avoid this clip on the output waveform the maximum voltage setting must be equal to the maximal current divided by 400 mA/V (the value of the relationship between current and input voltage) (Fig. 4.15b). For square Chapter 4. Doric Neuroscience Studio...
  • Page 31 The Plateau Time box is used to define the duration the pulse is at its maximum value. c) The Fall Time box is used to define the duration to descend from the pulse maximum to 0. Chapter 4. Doric Neuroscience Studio...
  • Page 32 4. The Number of sequences (Fig. 4.18) sets the number of times that the sequence will be repeated, with a minimum of 1. 5. The Delay between sequences (Fig. 4.18) sets the delay (in hh:mm:ss:zzz format) between each sequence if the Number of Sequences is greater than 1. Chapter 4. Doric Neuroscience Studio...
  • Page 33 3. The Period (Fig. 4.19) sets the period (in ms) for the pulse sequence contained in the file. 4. The Number of Sequences (Fig. 4.19) sets the number of times that the sequence will be repeated, with a minimum of 1. Chapter 4. Doric Neuroscience Studio...

  • Page 34: Acquisition View

    7. The Progression box displays the progression of the pulse sequence. The advancement of the sequence is displayed in % on the Progression bar, and in hh:mm:ss:zzz format on the Time Elapsed box. 8. The Graph View displays either a preview of the pulse sequence for Light Source Channels. Chapter 4. Doric Neuroscience Studio...

  • Page 35: Specifications

    Specifications 5.1 General specifications Table 5.1: Recommended Environmental specifications SPECIFICATION OPERATION STORAGE Indoor Indoor Temperature 20 C to 30 C -20 C to +60 C Humidity 40-60 % RH, non condensing 40-60 % RH, non condensing Figure 5.1: M8 Male Pinout (light source) Figure 5.2: M8 Female Pinout (LED Driver)
  • Page 36 Table 5.2: General Specifications for Connectorized LEDs SPECIFICATION VALUE NOTE Input Current Min: 0 mA - Max: see Table 5.10 700 mA recommended for 1000mA max current LEDs Forward Voltage 3.0 - 4 V Typical Dimensions 63 x 59 x 21 mm Without cable, with baseplate Mass 100 g...
  • Page 37 500 g without holder Output NA Output optical fibre core diameter 960 µm Power scales up to this core diameter Table 5.6: General Specifications for LEDFLS SPECIFICATION VALUE NOTE Power supply 110 - 240 VAC; 50 - 60 Hz Power supply adapter included...
  • Page 38 Table 5.7: General specifications for LED Drivers SPECIFICATION VALUE NOTE Power supply 110 - 240 VAC; 50 - 60 Hz Power supply adapter included DC power supply 12 VDC 36 W (1-2-ch), 60 W (4-ch) Mass 1-channel model 580 g (1.28 lbs) 2-channel model 757 g (1.67 lbs) 4-channel model...

  • Page 39: Power Tables

    5.2 Power Tables Table 5.8: Typical Connectorized LED, LEDFRJ1 and LEDFLS Output Power vs Optical Fiber Core Diameter Overdrive TYPICAL OUTPUT POWER @2000 mA @ Max current (mW) (pulsed) Central Bandwidth Bandwidth Core 200 µm Core 400 µm Core 960 µm...
  • Page 40 Table 5.10: Typical Combined LEDs and Combine LED with Fiber-optic Rotary Joints Output Power vs Optical Fiber Core Diameter TYPICAL OUTPUT POWER at max current (mW) Central Bandwidth Maximum Core 200 µm Core 400 µm Core 960 µm Wavelength (nm) FWHM (nm) Current (mA) 0.57 NA...

  • Page 41: Support

    6.2 Warranty This product is under warranty for a period of 12 months. Contact Doric Lenses for return instructions. This warranty will not be applicable if the unit is damaged or needs to be repaired as a result of improper use or operation outside the conditions stated in this manual.
  • Page 42 © 2023 DORIC LENSES INC 357 rue Franquet - Quebec, (Quebec) G1P 4N7, Canada Phone: 1-418-877-5600 - Fax: 1-418-877-1008 www.doriclenses.com...

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