IEE 340 Series Projection Display 
Written by AnubisTTP on 2010-07-26  

Description

Devices included in this entry:

IEE 340-0000-B-A11 numeric display (numeric characters 0 through 9)
IEE 340-06-A729-1 symbol display (plus and minus symbols)


Not all projection displays are bulky; this 340 series display, made by IEE, is so small that it does not look out of place mixed in with modern LED display modules. This device is truly minuscule; the digit height is only 13mm and the projection face is 12mm wide and 20mm tall... not much larger than a standard plastic DIP-packaged LED display. The 340 is much deeper than a LED display however, the complex projection lens system of IEE's larger displays has been replicated within in miniature. The display's clamshell case is secured by two threaded screws, which can be removed for easy replacement of the slide containing the projected numbers.

More


IEE 340 series projection display, part number is 340-0000-B-A11.


A symbol projection variant of this part, part number is 340-06-A729-1. This model displays plus and minus symbols, the rest of the slide positions are unused.


IEE 340 display, dismantled to show component parts. The 340 may be one of the smallest projection displays ever manufactured, but it retains much of the complexity of it's larger cousins.


Various different models of IEE projection displays for scale comparision; from left to right: 340 series, 14928 series, 01100 series, 220H series, 00010 series, 10000 series. Note that IEE projection displays utilize composite part numbers and everything occurring after the first dash is encoded information about lamp voltage and character sets.

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