Laser Circuits
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The circuit below is similar to the one above but can be used with a laser pointer to toggle the relay rather than a push button. The IR photo transistor Q1 (Radio Shack 276-145A) or similar is connected to the set input (pin 6). The photo transistor should.... -
This is the circuit diagram of laser communication system that transmit the sound or music signals by way of a laser beam. The intensity of the laser beam varies together with the amplitude of the sound signal. The variation within the intensity of the laser.... -
A? laser diode driver can be implemented using voltage-controlled current source.? This simple? linear laser diode driver gives cleaner drive current than a... -
The laser diode ·pulser is a simple drive circuit capable of driving the laser diode with 10-A, 20-ns pulses. For a 0. 1 % duty cycle, the repetition rate will be 50 kHz. A complementary emitter follower is used as a driver. Switching speed is determined by.... -
This schematic below was built using a 2-layer evaluation board for the AD9662 3-Channel Laser Diode Driver,this device are used mainly for high performance CD-DVD recordable drives and laser diode current switching.. -
Usually, semiconductor laser diodes are operated from current drives. Unfortunately, The output power is strongly dependent on the device temperature ? a... -
The circuit below is similar to the one above but can be used with a laser pointer to toggle the relay rather than a push button. The IR photo transistor Q1 (Radio Shack 276-145A) or similar is connected to the set input (pin 6). The photo transistor should.... -
Ql and Q2 switch the primary windings of transformer Tl via a square wave at a frequency determined by its magnetic properties. Diodes Dl and D2 provide base return paths for the feedback current of Ql and Q2. The output winding of T1 is connected to a.... -
Laser communication system circuit diagram. The circuit module consists of a transmitter and also a receiver which use IC LM386. It is powered by a 9V battery.. -
The following post illustrates a simple light toggled/operated remote control circuit, which can be activated by an ordinary flashlight or more effectively through a laser beam unit (key chain type). The LDR is connected across the base of thetransistor and.... -
In the transmitter schematic, no ballast resistor is shown because most small LASER power supplies already have one built in. Yours may differ, and a resistor may be needed. .. -
Electromagnetic radiation is used in communication. You are more familiar with radiowaves, microwaves, and TV signals. Visible light is also electromagnetic radiation and can be used to transmit a signal. It is a whole new technology called fiber optics. A.... -
To create the two laser guns for our game, we wanted to mount red lasers into some kind of modifiable toy guns that players could hold and shoot with. Fortunately, we found small red lasers from Fry`s that the target photocells can consistently successfully.... -
Argon and krypton (rare gas) ion lasers find applications in many diverse fields including (1) very high performance printing, copying, scanning, typesetting, photoplotting, and image generation; (2) forensic medicine, general and ophthalmic surgery; (3).... -
This chapter provides detailed schematics of a variety of power supplies suitable for use with the common Ar/Kr ion tubes available to the hobbyist on the surplus market. Included are examples of commercial designs (Omnichrome 150R and 532 head, Lexel 88 and.... -
The copper chloride (CuCl) and copper bromide (CuBr) lasers are variations of the copper vapor laser. The Cu vapor laser runs at a high temperature of around 1, 100 °C and is driven with a high voltage pulse, usually at a repetition rate of 8 to 10 kHz. Its.... -
Dye lasers are unique in that they are a class of lasers whose lasing medium is a liquid. Depending on the particular dye used, output can be at a wide range of wavelengths spanning the visible spectrum and beyond. Commercial dye lasers are often pumped by.... -
The nitrogen (N2) laser produces intense extremely short (a few ns) intense (100 kW typical) pulses of light in the near UV portion of the E/M spectrum (337. 1 nm being the dominent line). Despite this impressive capability, the N2 laser is among the easiest.... -
This chapter contains circuit diagrams for several power supplies for pulsed solid state lasers. These include units suitable for driving the popular Hughes ruby and YAG rangefinder laser assemblies as well, one using the flash from a disposable pocket.... -
Want to send your audio information via a light wave across the room I built this simple circuit with some modifications that transmits an audio signal via light. The signal simply amplitude modulates the light intensity (aka AM) of a LED and a receiving.... -
So long as the visitor stretches out one`s hand and crosses the black harp of that entire body, the tone will be played . Why is not there the string to play S.. -
This circuit is built around a 555 timer using very few components. Since the circuit is very simple, even a novice can easily build it and use it as a controlling device. A laser pointer, now easily available in the market, can be used to operate this.... -
This is the built servo amplifier and circuit diagram. This is a simple and ordinary op-amp circuit, there is nothing difficult. However it has power amplifier and small signal amplifier on the board together. You have to pay attention to unintentional.... -
Transmitting Voice Wirelessly Using Laser, Tips & Tweaks, Windows tips and tweaks to enrich your computer operating system experience .... -
Two circuits for laser transmitters. The first uses a simple laser pointer module. Any of the normal 3 or 5mW devices will function well. Imports from the USA or Hong Kong are frequently a higher power than the UK approved units. The modules normally contain.... -
The Laser1 RoboBrick is a module that is designed to allow the use of a slightly modified laser pointer to detect passive refector beacons at a distance of approximately 10 meters (or about 32 feet for the metrically impaired. ) It is meant to be used in.... -
This chapter contains circuit diagrams for several power supplies for pulsed solid state lasers. These include units suitable for driving the popular Hughes ruby and YAG rangefinder laser assemblies as well, one using the flash from a disposable pocket.... -
The aim of this project is to transmit analog sound from a commercial mp3 player digitally using a store-bought laser pointer as the transmitter. This will be achieved mainly by performing analog-digital conversions, and by using a digitally phase-locked....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
This box is a set of nine relaxation oscillators. It blinks random patterns and looks cool. When...
This circuit enables a single SCR to provide fullwave control of resistive loads. Resistor R3...
This random timer circuit is based on a Atmel ATTINY24 avr driving one power relay. You can use...
The quartz clocks which have dominated time-keeping for the past 20 years or so have one problem:...
This project started from seeing pages describing arcstarters that could be constructed for...
Shown for the WS157 or WS106 with low power miniature switching power supply. WS157 or WS106 is...
As shown in Figure 555 is a simple logic circuit test leads. Test pen 555 as the core, it will...
As shown, the long wire current loop transmission will be introduced radio frequency (RF)...