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High voltage driver
Displags news
Low complexity terminal Standard colour TVs are not capable of producing the high definition displays required for computer alphanumerics and graphics. And specially designed high resolution monitors are often prohibitively expensive. To bridge this gap, Microvitec has introduced a low complexity colour display terminal. The unit's 355 mm screen offers UP to 80 column capability in a metal cabinet. It joins the Microvitec terminal range of a 355 mm f•am-cased unit and a 500 mm metal-cased terminal. The display has been adopted by a number of microcomputer companies and offers compatibility with others.
lution (step size) is 25/~m and repeatability 100/zm. The low inertia of the pen-and-paper movement avoids the problems of conventional plotters bulkiness, high power consumption and high cost. A variable relative velocity between pen and paper suits special drawing conditions.
Hewlett-Packard Ltd, Nine Mile Ride, Easthampstead, Wokingham, Berks RG11 3LL, UK
Phosphor-matched filters
Metal-cased low complexity microcomputer display
Colour matching to specific phosphors maximizes the improvement in contrast and readability on a range of VDU screen filters from SGL International. The Homalite filters have a low reflectance surface cast into the filter to prevent chipping and peeling. A range of colours and sizes is available to suit most CRT phosphors and mounting arrangements.
Pen and paper move
SGL International, 76 Euclid Avenue, Haddonfield, NJ 08803, USA
DISPLAYS. JULY 1982
The drivers can be chained to drive multiples of 30 LEDs with direct connection of the integrated voltage dividers. This means that the reference voltage range only has to be adjusted once.
Squarer and flatter Contrast is optimized using phosphor-matched filters
215 x 280 mm plots are produced by the System's micro-grip drive. Reso-
LEDs of various colours incorporated in one display can be driven using a device from AEG Telefunken. The driver, intended for 30-element flying spot LED displays, requires nine address lines. A variable reference voltage range can display voltage ratios.
Hero Electronics L td, Dunstable Street, Ampthill, Beds MK45 2JS, UK
Microvitec Ltd, Boiling Road, Bradford, West Yorks, UK
Simultaneous movement of pen and paper on a Hewlett-Packard plotter for personal computers offers performance advantages over competing low-cost plotters, says the company. Two-colour capability and high resolution plotting at speeds up to 380 mms -1 give graphics suited to application in architecture, engineering, banking and real estate.
Flying spot driver
Automatic CRT measurement Spatial and photometric measurements can be made anywhere on the face of a CRT under computer control using a device from Centronic. No mechanical scanning is needed. Only the CRT's electron beam is moved to measure spot and luminance properties.
Centronic Sales Ltd, Centronic House, King Henry's Drive, New Addington, Croydon, Surrey CR9 0BG, UK
A flatter and more rectangular screen than on their other 305 mm 90 ° tubes is a feature of a new tube from Philips. The data graphic display tube is intended for personal computers, standalone terminals and word processors. Resolution is approximately 1 300 lines offering a 2 000 character display. A choice of four phosphors and three anti-reflective treatments is available.
N V Philips" Gloeilampenfabrieken, Elcoma Division, PO Box 523, 5600 AM Eindhoven, The Netherlands
High voltage driver Digits or segments can be driven using a driver integrated circuit from Rastra Electronics. The monolithic multiple driver is high-voltage, designed to interface between low-level digital logic and vacuum fluorescent displays. Eight independent stages with a common bias supply are included driving digits or segments of these displays. Voltage level shifting and pull-down components are incorporated into the one chip.
Rastra Electronics Ltd, 275-281 King Street, London W6 9NF, UK
169
Low complexity terminal Standard colour TVs are not capable of producing the high definition displays required for computer alphanumerics and graphics. And specially designed high resolution monitors are often prohibitively expensive. To bridge this gap, Microvitec has introduced a low complexity colour display terminal. The unit's 355 mm screen offers UP to 80 column capability in a metal cabinet. It joins the Microvitec terminal range of a 355 mm f•am-cased unit and a 500 mm metal-cased terminal. The display has been adopted by a number of microcomputer companies and offers compatibility with others.
lution (step size) is 25/~m and repeatability 100/zm. The low inertia of the pen-and-paper movement avoids the problems of conventional plotters bulkiness, high power consumption and high cost. A variable relative velocity between pen and paper suits special drawing conditions.
Hewlett-Packard Ltd, Nine Mile Ride, Easthampstead, Wokingham, Berks RG11 3LL, UK
Phosphor-matched filters
Metal-cased low complexity microcomputer display
Colour matching to specific phosphors maximizes the improvement in contrast and readability on a range of VDU screen filters from SGL International. The Homalite filters have a low reflectance surface cast into the filter to prevent chipping and peeling. A range of colours and sizes is available to suit most CRT phosphors and mounting arrangements.
Pen and paper move
SGL International, 76 Euclid Avenue, Haddonfield, NJ 08803, USA
DISPLAYS. JULY 1982
The drivers can be chained to drive multiples of 30 LEDs with direct connection of the integrated voltage dividers. This means that the reference voltage range only has to be adjusted once.
Squarer and flatter Contrast is optimized using phosphor-matched filters
215 x 280 mm plots are produced by the System's micro-grip drive. Reso-
LEDs of various colours incorporated in one display can be driven using a device from AEG Telefunken. The driver, intended for 30-element flying spot LED displays, requires nine address lines. A variable reference voltage range can display voltage ratios.
Hero Electronics L td, Dunstable Street, Ampthill, Beds MK45 2JS, UK
Microvitec Ltd, Boiling Road, Bradford, West Yorks, UK
Simultaneous movement of pen and paper on a Hewlett-Packard plotter for personal computers offers performance advantages over competing low-cost plotters, says the company. Two-colour capability and high resolution plotting at speeds up to 380 mms -1 give graphics suited to application in architecture, engineering, banking and real estate.
Flying spot driver
Automatic CRT measurement Spatial and photometric measurements can be made anywhere on the face of a CRT under computer control using a device from Centronic. No mechanical scanning is needed. Only the CRT's electron beam is moved to measure spot and luminance properties.
Centronic Sales Ltd, Centronic House, King Henry's Drive, New Addington, Croydon, Surrey CR9 0BG, UK
A flatter and more rectangular screen than on their other 305 mm 90 ° tubes is a feature of a new tube from Philips. The data graphic display tube is intended for personal computers, standalone terminals and word processors. Resolution is approximately 1 300 lines offering a 2 000 character display. A choice of four phosphors and three anti-reflective treatments is available.
N V Philips" Gloeilampenfabrieken, Elcoma Division, PO Box 523, 5600 AM Eindhoven, The Netherlands
High voltage driver Digits or segments can be driven using a driver integrated circuit from Rastra Electronics. The monolithic multiple driver is high-voltage, designed to interface between low-level digital logic and vacuum fluorescent displays. Eight independent stages with a common bias supply are included driving digits or segments of these displays. Voltage level shifting and pull-down components are incorporated into the one chip.
Rastra Electronics Ltd, 275-281 King Street, London W6 9NF, UK
169