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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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LASER sa HOLOGRAPHY & LASER PHOTOGRAPHY sa LASER DIODE sa LASER PRINTING sa LIGHT BEAM COMMUNICATION xx ELECTRONICS Communicate on a light beam. Circuits for sending data communications over a beam of laser light. Also involves the use of fiber optics for short distance transmission. Use to transmit digital information from a computer. A laser update. An overview of current laser technology in preparation for experiments with both gas and semiconductor lasers. Computer Art. Simple programs for drawings and accompanying sound for computer art shows. Includes instructions for generating a laser light show by bouncing a laser beam off of a small mirror attached to a speaker cone. High-voltage projects SPECIAL SECTION. (1) Jacob's ladder. (2) Solid-state Tesla coil. (3) Lightning bulb (an electrical display inside an ordinary light bulb). (4) Stun gun and dazer. (5) Laser power supply. (6) Plasma globe display. (7) High-voltage pulse generator. (8) Kirlian photographs. Laser light show. Motor-mounted mirrors and electronic drive circuits are used to generate complex geometric patterns. Use with any laser. Est. cost: $99 (kit). Laser experiments. Build a basic low-power helium-neon gas laser. Laser experiments. (1) Optical seismometer. Includes instructions for a photographic recorder which makes a permanent record of earth movements over a 24-hour period. (2) Laser listening device. Modulated laser light is picked up by a simple parabolic detector. Laser experiments. Optics and optical experiments. Using lenses, diffraction gratings and mirrors to learn more about lasers and their properties. Laser experiments. Using lasers in security systems. Using lasers in construction and surveying. Laser experiments. Entertaining with laser light. Laser experiments. Generating laser-light patterns using mirrors, motors and electromagnets. Laser experimenter. Visual productions and light shows. Ideas for using rotating mirrors, beam splitters, speaker modulator, etc. Laser-light special effects created by mirrors attached to a galvanic coil (galvanometer). How to build and activate a galvanic-coil mirror assembly. Laser communications simulator uses LED's to simulate laser transmission of signals through the air and through fiber optics. A laser burglar alarm you can build. Uses Metrologic Instrument model ML-310 laser available assembled or in kit form. Use mirrors to direct a beam of laser light all around the perimeter of an area you wish to protect. Computer-controlled laser light show. A low-power He-Ne laser, two miniature servos, interfaces and a home computer let you create dramatic lighting effects to accompany your music. Laser eavesdropping. Intercepting conversations inside a closed room by detecting and demodulating a laser beam reflected from a window pane. Safe, low-cost experimenter's laser generates a modest 0.5 milliwatts at 6328 angstroms. Est. cost: $50. Laser beam communicator. Audio modulated, low-cost laser. Est. cost: $145 per station (plus telescope). Transmit and receive black and white TV pictures over a substantial distance with a license-free laser beam video link. Est. cost: $150 plus TV camera and receiver. Build a semiconductor laser communications system. Uses pulse modulation to achieve a range of one kilometer or more (3300 feet). Miniature dc-dc converter allows a tiny watch battery to power a neon lamp or even a powerful semiconductor-laser pulser which require 70 to 150 volts at relatively low current. A history of the laser and a look at the current state of the art. All about lasers. Learn about the beams of light that are changing our lives, and explore the inner workings of the machines that produce them. Build a simple, inexpensive power-supply circuit for a low-power helium-neon gas laser tube (0.5 mW to 7 mW rating). A mounting idea for the laser tube is also shown. Power supply for a helium-neon laser tube does not require expensive or exotic components. Build a working ruby laser. How to design automotive anti-collision systems. Part 1. An in-depth look at various designs with enough information for the advanced hobbyist to build his own. How to design automotive anti-collision systems. Part 2. Build this helium-neon laser. Accompanies an article which looks at the history and theory of lasers. Build this laser listener to eavesdrop on a window from across the street. Use conversation-induced vibrations of a window pane to modulate a laser beam. Universal laser power supply that can be easily adapted for use with various kinds of hobbyist and experimenter laser tubes. Operates from a 12-volt, 750-mA source. Output voltage is between 800 and 2000 volts AC. Est. cost: $39. Helium-neon gas lasers can be built at home by the persevering amateur. Device for cleaning the soft-coated dielectric mirrors used in continuous lasers of the helium-neon type. How to construct an argon gas lasers with outputs at several wavelengths. How to make a tunable laser using organic type dye. Can be made using ordinary hand tools for less than $75. Experiment uses Faraday cell in the construction of a laser-light modulator. How to construct a carbon dioxide laser that produces a beam of infrared radiation. Details of construction and operation provided. Infrared for the amateur. How to build an infrared laser and a Christiansen filter to isolate a narrow band of frequencies in the infrared spectrum as well as single colors of visible light. How a laser beam and a photocell are used to measure the dirt content of water. Details on the construction and operation of a nitrogen gas laser that puts out pulses in the ultraviolet spectrum and can operate on a six-volt battery. How to produce dazzling laser displays. Use loudspeakers to vibrate mirrors which then reflect laser light into a variety of patterns. Homemade mercury-vapor ion laser that emits both green and red-orange. The amateur scientist. More about dazzling visual displays produced by lasers. Includes designs for rotating mirrors and prisms and a beam chopper. How to observe and explain the "speckle" (speckled pattern) generated when light from a laser is scattered from a surface whose irregularities are about equal to the wavelength of the light. The amateur scientist. A ball bearing aids in the study of light. It also serves as a kind of "lens". A study of diffraction utilizing laser beams. A homemade copper chloride laser emits powerful bursts of green and yellow light. | |||||||||
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