Opto-Electronics


Latest Articles

InGaAs photodetectors for OTDR applications
24 October 2001, Hamamatsu Photonics UK
Optical time domain reflectometry (OTDR) is a long established technique for determining the type and location of faults in optical fibre. OTDR systems measure the time taken for a laser pulse entering ...

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Right-angle SMD LEDs
24 October 2001, Communica
Kingbright's KA-4040 series (4,0 x 4,0 mm) true right-angle white SMD LED with built-in reflector provides high intensity output, 120 mcd (typ) at 20 mA, and wide viewing angle at 90°. This newly improved ...

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Light pipe
24 October 2001, Communica
Kingbright's light-pipe, made by high transmissive polycarbonate material with UL94V-0 rating, is available in single position, three position and four position in both horizontal and vertical arrangement. ...

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15" LCD displays now cost-effective
10 October 2001
LCD displays have always been too expensive for many applications. In order to save on cost users often select smaller or lower performance LCD displays. This is no longer necessary. A worldwide oversupply ...

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Constant-current latched LED driver IC
26 September 2001, Altron Arrow
The A6277 from Allegro MicroSystems is an 8 bit, serial-input, constant-current latched driver integrated circuit specifically designed for LED display applications. The device incorporates an 8 bit CMOS ...

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LED modules for heavy and light rail
26 September 2001, Electrocomp
Light emitting diodes (LED) are being used more and more in a wide variety on the traffic market. The railway signal modules from Osram OS are based on Power TOPLED with lens, a new member of the TOPLED ...

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InGaAs photodiode arrays for DWDM
26 September 2001, Hamamatsu Photonics UK
With an ever-increasing demand for complex optical transmission systems, such as DWDM, there is a growing market for products to accurately monitor and control the increasing number of wavelengths being ...

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10,4" industrial display of monitors
12 September 2001
The AMB-232A is an ideal 10,4" VGA (640 X 480) colour TFT display monitor built specifically for industrial applications. The Aaeon design displays brilliant, crisp and flicker-free images. With the optional ...

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High-bright LEDs
12 September 2001, EBV Electrolink
High-end LED applications such as exterior lighting, automotive electronics, traffic signs or incandescent lamp replacement, above all require superior luminous flux. Vishay, a long-term partner of EBV, ...

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Silicon ambient light sensor sees light as human eyes do
1 August 2001, Electrocomp
Regular silicon detectors have their maximum sensitivity in the IR range, and thus behave considerably differently from human eyes. If they are used as ambient light sensors, ie to adjust display backlighting, ...

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Optical Schmitt triggers
1 August 2001, Electrocomp
Osram Optosemiconductors offers a wide range of optical photodiodes with integrated Schmitt trigger circuits for digital output applications. These devices are available in a variety of packages, including ...

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Transmitters and receivers for plastic fibre optics
1 August 2001, Electrocomp
Plastic fibre links use simple and inexpensive LEDs and photodiodes as transmitters and receivers, respectively. The most common type of plastic optical fibre is composed of a polymethylmethacrylate (PMMA) ...

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Mobile antenna
29 August 2001
A magnetically mounted GPS/GSM antenna for mobile applications has been developed by Webb Industries. Magnetic mounting allows the antenna to be quickly fitted or removed from a vehicle giving it complete ...

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4-pin dual photo IC for distance measuring
18 July 2001, Hamamatsu Photonics UK
For triangulation distance measurement Hamamatsu offers a new photo IC. Operating at 5 V, the 58030 is available with a 4-pin SIP (5 x 5 mm) or surface mounted SOP (4,5 x 4,5 mm) package. The dual photo ...

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LCD modules for all display applications
4 July 2001, Electrocomp
Data International offers a comprehensive selection of LCDs that are suitable for a variety of flat panel display applications. Featuring the latest technologies the low power requirement of these LCDs ...

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Reflective colour LCD modules
23 May 2001
Hitachi has developed a new single polariser reflective colour (SPRC) STN technology which does not require a backlight and therefore consumes only 10% of the power of a conventional transmissive colour ...

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Vandal resistant LEDs
23 May 2001
Bulgin has released the latest in its development program for vandal resistant products. Bulgin's Vandal Resistant LED Indicators are designed to complement the style of its extensive range of vandal ...

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Programmable LCD driver produces sharper, clearer displays
25 April 2001, Altron Arrow
Philips Semiconductors' new PCF8813 is said to be the world's first programmable monochrome graphic display driver. The PCF8813 uses the company's patented one time programmable technology (OTP) to produce ...

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105 x 140 LCD module designed for TAB assembly
11 April 2001
With the escalating trend towards advanced manufacturing technologies such as tape automated bonding (TAB) and chip on flex (COF), Impact Memec has introduced a new TAB, 105 x 140 pixel liquid crystal ...

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Phototransistors improve background lighting immunity
28 February 2001, Communica
The OP750 and OP755 from Optek are silicon, NPN phototransistors with integrated base-emitter resistors. The base-emitter resistor enhances the phototransistor's low current roll-off characteristic which ...

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