HPLS-45

By Lightspeed Technologies

HPLS -45 Data Sheet The DRAGON series High Power LED Light Sources Features The HPLS -45 series of high power LED light sources are designed as flexible system of interchangeable components for applications where it is hard to standardize the requirements for mass -production. Building a system comes down to (1) selection of appropriate base with specific functionality and type of control; (2) selection of LED head[s] and (3) focusing optics specific for the application. Functionality of base units include fast analog control (to generate any optical function, sine, saw, square, CW …); low -noise CW control (for applications where ATC -like or PWM algorithms may cause problem); and fast pulsed (digital) control (faster and more powerful then analog). Selection of the way the optical power is set include external digital/analog signal supplied thru connector (BNC/Twin BNC), or, for CW application, Built -In Potentiometer). LED heads are currently available in LEDH -xxx series with 0.8” pin spacing for higher performance and wider selection of focusing optics. Many other models of LEDs can be adapted. The function of focusing optics is to direct the light to the certain spot size on certain distance as required and often custom designed for specific application. Most of new optics is backward -compatible (fits the units previously shipped) Description Applications • Plug -and -play frame for LEDs • Interchangeable LED heads provided • 455 nm, 475 nm, 505 nm, 530 nm, 590 nm, 617 nm, 630 nm, white 5500 K, white 3300 K, UV and IR options • Selection of collimating optics/ attachments • Selection of base units • Fast analog control (some models) • Low -noise CW control (some models) • Fast pulsed (digital) control (some models) • Narrow bandwidth or broadband • Wide field or focused output • Continuous, waveforms, or pulses to <150ns • Up to 400mW CW, x5 intensity short pulse • Accepts LEDs with 0.2”, 0.4”, 0.6”, 0.8”, 1”, 1.2” pin spacing • Fluorescence excitation • High -speed imaging • UV Curing • Synchronous detection • Machine vision • Biomedical optics HPLS -45 LED Controller shown with Optional RS 1 LED socket and OH 36 -24 X11 Collimator HPLS -45 APLXXX -3DEXT Back – External Control 0-5V input: 0 to full scale TTL Disable: 0V: On 5V: Off Green Connector: To LED Front – Local Control 3 digit Potentiometer Settings by part number HPLS -45APXXXX -3DEXT 45AP1000: 0 -1000mA 45AP0100: 0 -100mA 45AP0010: 0 -10mA The output is scaled to the 3 digit potentiometer settings and voltage control. For example HPLS -45AP1000 -3DEXT: Digital Potentiometer setting 200: Current output 200mA, 0-5V External Voltage control 1V: 200mA, 5V: 1000mA Disable is active for both local and external control. Default is 0V=ON (No signal) HPLS -45APL Shown with optional RS1 LED Socket and LED Base Unit HPLS -45AD3500 Description HPLS Base Unit with built -in 2 -channel driver. Analog channel has linear control and continuously variable output, with 1% input offset to ensure shutdown when signal is not applied. Digital channel has 2 -level ON -OFF control (active HI). Output current in the sum of outputs of both channels. Switch on the control panel selects which channel is addressed by input BNC connector, thus selecting Digital or Analog mode. There is an important difference between the output stages of Analog and Digital channels. Analog channel operates in current regulation mode using a feedback from the current sensor in the output stage. Digital channel, on the other hand, provides fast switching while the current is limited by the resistor (without active feedback). This is because the channels are optimized for different purposes: Analog channel is designed to convert the input voltage into output current as precisely as possible and as fast as reasonable but not to hurt the precision; while Digital is optimized for switching the current to MAX level and back to 0 as fast as possible. As a side effect, the current in Digital mode varies slightly for different LED head; while the Analog channel current is regulated to be the same. Base unit accepts LED heads with 0.2 -1.2 inch pin spacing. (LEDH, LEDHR). Accepts focusing optics and attachments mounted on LED head directly and models that have index “36” in a part number. Common Specifications • Two operating modes: Analog/Digital • Dimensions: Ø1.45x4.5” (36.8x115mm) • Weight: 0.66 lb (0.3 kg) • Power Requirement: 12V, 0.5A • Power Connector: 5.5/2.1 mm Power Jack, center positive, barrel common ground • Control Signal Connector: BNC • Thermal resistance, convection: 5 C/Watt Absolute Maximum Ratings • Power Input: -1 to 14V; -2A to 2A; fuse protected (2A) • Signal Input, Digital Mode: -2.5V to 7V; 50mA max, 50 Ohm input impedance • Input, Analog Mode: -10V to 20V HPLS -45AD3500 exterior view HPLS -45AD3500 control panel: Front • Local / External selection • On / Off • 3 Digit Potentiometer for analog Control Back: • External Analog Control 0 -5V • Digital Input TTL Digital output LED Overdrive (1 output setting) RS1 Socket LED head connector: • 13 pins x 0.1” pitch • Pins 1 -6, marked red or yellow: positive • Pin 7: NC • Pins 8 -13: negative • Accepts 0.025” (0.64m) square pins, 0.230” long HPLS -36AD3500 block diagram Base Unit HPLS -45AD3500 Waveforms and specifications Analog mode specifications: • Input/Output relationship: Linear, 1% offset • Output current, continuously variable: 0 -500mA • Output current drift: < 800ppm/hour • Output current accuracy: +/ -3% of set value • Output current RMS noise: <0.5% • Input Signal Format: User Programmable (4 -Dip switch on the driver board) • Input Signal Format (Default): 0 -5V • Input Signal Formats: 0 -10V; 0 -20mA, 4 -20mA • Rise Time/Delay for 0 -250mA transit: 400ns(50%), 1.2us(90%) / 1.8us Delay • Fall Time/Delay for 250 -0mA transition: 750ns(50%), 500ns(90%)/ 20ns Delay • Rise Time/Delay for 50 -300mA transition: 350ns(50%), 800ns(90%); 20ns Delay Digital mode specifications: • Output current: 3.5A +/ - 0.3A (LED head dependent) • Rise Time: 80ns (to 1/2 level); 200ns (to 90%) • Rise front propagation delay: 100ns typ • Fall Time: 140ns (to ½ level); 200ns (to 90%) • Fall front propagation delay: 200ns • Pulse front/fall jitter: < 10ns, <5ns typ • Nominal Signal Level: 3.3 -5V; TTL/CMOS • Logical “0” (light OFF): <0.8V • Logical “1” (light ON): >2.4V • Smart Time Limiting Circuitry for LED Protection Limits the Cumulative Energy Delivered to LED • Single Control Pulse length range: 50ns -1ms • Maximum Duty Cycle of Continuous Waveform: 10% • Average Ratio, Active Time/Relaxation Time: 1:10 • Any Repetition Rate • Trimmer on the Board to Down Regulate the Pulsed Current and Optical Power Digital mode, protocol examples: • Example 1: 1us pulse permitted every 10us • Example 2: 1 ms max duration pulse every 10ms • Example 3: 50% duty cycle waveform 2ms total duration, permitted every 10ms • Example 4: 20% duty cycle waveform 5ms total duration, permitted every 10ms • Example 5: 200ns starting pulse: optical pulse has Gaussian profile, 420ns(1/2), peak is 100% of steady level • Example 6: 100ns starting pulse: optical pulse has Gaussian profile, 270ns(1/2), peak is 80% of steady level • Example 7: 50ns starting pulse: optical pulse has Gaussian profile, 200ns(1/2), peak is 60% of steady level Digital mode, Example 1: 1us control pulse (blue), optical pulse (red) Analog mode, sawtooth pattern 8kHz. Control pulse (blue), optical pulse (red) Digital mode, Example 1: 1us control pulse every 10us (blue), optical pulse (red) Digital mode, Example 2: 1ms control pulse every 12ms (blue), optical pulse (red) HPLS -45 Driver Manual Base unit with specific functionality LED RS1 Socket Optics Typical system configuration Back – External Control Front – Local Control Three Wavelength Fluorescence Configuration With Fiber Bundles RS1 LED Socket and OH36 -24X11 Collimator / Focusing Optic Two Wavelength Direct Fluorescence Configuration Well Plate Illuminator Configuration Setup Installing LED (yellow pin to yellow stripe) Installing Collimator –Thumb Screw and focus OX36 -24X11 accepts 1 inch filters Installing FL -25 fiber launcher and FA -XX Adapter LED Heads LEDH, LEDHR series Specifications p.1 LEDH and LEDHR are user -replaceable, LED -based light sources, attached to the HPLS -36 series base units, which provide electrical connection to the driver, means of mechanical mounting and the heat dissipation from the LED. Available in two form factors – LEDHR, bigger, with build -in reflector to collimate the light emitted from the LED, and LEDH, smaller, higher performance, un -collimated light source. Reference to the table below for typical optical power achievable by 14 different models of LED heads when plugged into various HPLS -36 models. For spectral information, form factors, and temperature coefficient of optical power, see the next page. Table 1. Optical power range of various models of LED heads vs. HPLS -36 model, current, and duty cycle. (1) Note: Optical power for LEDHR is measured after reflector, using 2” (5cm) diameter optical power meter placed on optical axes 4” (10 cm) from the LED (2) Note: For LEDH, the optical power is total of the chip before any optics, and measured by 2” (5cm) diameter optical power meter placed on optical axes touching the LED lens. (3) Due to the nature of the semiconductor structures involved, important parameter of LEDs such as optical power, maximum current that LED can tolerate, spectrum and voltage drop, vary greatly for different batches and affect the performance of the HPLS -36 series light sources. It is not uncommon that the power of LEDs from different batches differs 2 times and more. The information presented here should be used for reference only. Please ask if your application demands more stringent requirements. (4) Optical power is measured with LED head attached to the HPLS -36 unit, at the room temperature 25C. (5) Optical power indicated is power range while ON, for Digital models, and maximum power for continuously variable models. Please note the 2 -channel models such as AD3500 and AD3500 -DI, presented in 2 columns, for digital and analog channels, respectively. (6) Duty cycle affects the performance of LEDs. Typically, for a given current, optical power is higher for lower duty cycle due to lower heating effect of the LED chip. For the pulsed units, exceeding duty cycles indicated for the given current can cause permanent damage to the LED. Some HPLS -36 models have built -in protection against exceeding duty cycle, however, due to wide spread of duty cycle requirements and flexible nature of HPLS -36 series, it is impossible to satisfy to all the requirements in one unit. LED Heads LEDH, LEDHR series Specifications p.2 Typical spectra, 455, 470, 505, 530, 595, 617, 630nm Typical spectrum for white 5500K LED Typical spectrum for warm white, 3500K LED Optical power vs. temperature for 595, 617, 630nm LED heads Optical power vs. temperature for 455, 470, 505, 530, LED heads Ordering information: LEDH[R] - XXXX (color, temperature) – XXXX (performance model, for LEDH only) -455 (royal blue) -omitted: 1.0x1.0 mm die, basic performance -470 (blue) -3: 1.0x1.0mm die, high brightness, high power -505 (cyan) -5: 3x3mm die, moderate brightness, high power -530 (green) -K2: 1.0x1.0mm die, best brightness, best power -590 (amber) -617 (red orange) -630 (red) -3500 (warm white) -5500 (bright white) examples: LEDHR -470: blue, 1.2” pitch, with reflector, basic performance LED head LEDH -530: green, 0.8” pitch, basic performance LED head. LEDH -455 -K2: royal blue, 0.8” pitch, best brightness/power LED head. LEDH exterior view Other Wavelengths available UV/VIS/NIR Typical application with OH36 -24x11 collimator, assembled (left), exploded diagram (right). Fiber Launcher FL -25x0.5 shown with FC fiber adaptor. Fiber Launcher 25 mm x 0.5NA FL -25x0.5 General description. Fiber Launcher FL -25x0.5 is designed to function primarily as an optical attachments for HPLS -36 series light sources, to inject the light generated into the optical fiber or light guide. Fiber launcher accepts pre -collimated beam therefore must be used with the collimator (primarily with 24mm aperture OH36 -24x11). The first component (HPLS -36 base unit with LEDH) generates light, the second component (OH -36 series collimator) converts it into quasi -parallel beam, the third component (fiber launcher body) focuses light onto optical fiber, fourth component (adapter) holds optical fiber or light guide in place and allows axial adjustment for optimal focusing. Such modular product structure represents cost -effective solution when application flexibility is required since many components can be used independently or in combinations with other components. FL -25x0.5 features and specifications: • Accepts collimated beam • Focuses light on the entrance of the fiber (light guide) • Input: Linear aperture 25mm • Output: convergent beam 0.5NA • Efficiency (before fiber): approximately 90% • Efficiency (after fiber): subject to fiber diameter • Weight (with adaptor, without collimator): 50g • Spot size: 3mm, when used with OH36 -24x11 collimator and LEDH heads. Fiber Adaptor options: • One fiber adaptor included with fiber launcher. • FA -25xFC: FC fiber adaptor • FA -25xSMA: SMA -905 fiber adaptor • FA -25xST: ST fiber optic adaptor • Liquid and glass light guide adaptors available, please inquire. Optical power in the fiber: • Please note that LEDs have limited ability to focus light into small and single -mode fibers. • Power in the optical fiber <3mm: Popt=Pled*(D/3mm)^2 * (NA/0.5)^2, Power in the liquid light guide >3mm: Popt=Pled*0.9 • Power in the glass bundle >3mm: Popt=Pled*0.9*K, where K is glass bundle fill factor • Definitions: Popt = power in the fiber, Pled = power on the input of the fiber, D -diameter of fiber in mm, NA – numerical aperture of fiber. • Example1: 200mW with 600um x 0.45NA fiber will produce Popt=200*(0.6/3)^2*(0.45/0.5)^2= 6.5mW • Example2: 200mW with 100um x 0.22NA fiber will produce Popt=200*(0.1/3)^2*(0.22/0.5)^2= 0.043mW • Example3: 200mW with 60um x 0.22NA fiber will produce Popt=200*(0.06/3)^2*(0.22/0.5)^2= 0.015mW