Talk:Opto-isolator

message: As I understand it, photointerrupters (transmissive photosensors) and photoreflectors (reflective photosensors) are sometimes referred to as slotted and reflective optocouplers, respectively. They are used to build incremental optical rotary encoders; these, again, are used in ball-type computer mice. However, these things are not what one would usually think of when talking about an optocoupler or optoisolator. Until someone finds the time to explain this properly (sorry, I don't have it right now), the sections referring to these topics are simply confusing. I have therefore removed them from the article and put them here:
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*The classical ball computer mouse is a common application, using infrared emitter LEDs and phototransistors to form optocouplers. The ball of the mouse turns a pair of optical encoder wheels. These wheels periodically block the optocouplers and thereby translate the motion of the mouse into a sequence of pulses. These pulses are then used to record the motion. The principle of operation does not require infrared light, but the infrared sensor is less sensitive to interference from common flickering visible light sources such as fluorescent lamps and CRT displays.
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--128.130.60.86 11:35, 26 September 2007 (UTC)
thread_title: Slotted/reflective optocouplers

message: These two articles seem to cover the same thing. -- Bob Mellish 18:45, 7 October 2005 (UTC)
replies: text: agreed. — Omegatron 15:04, 4 November 2005 (UTC)
thread_title: Merge with [[Optical isolator]]

message: There should be some discussion on analog versus digital isolation. Efadae (talk) 21:33, 17 April 2009 (UTC)
thread_title: Comments

message: The link to one of the pdf's listed on the bottom of the page is dead.  —Preceding unsigned comment added by 212.37.244.183 (talk) 10:05, 17 June 2009 (UTC)
thread_title: Dead Link

message: I'm doing it user space right now. If you plan to edit the article in the nearest week or two, ping me please. East of Borschov 13:21, 3 November 2010 (UTC)
thread_title: Rewrite in progress

message: Weber's book seems sufficient to claim that Vactrol is used generically today. He writes: "The light dependent resistor, also known as LDR or vactrol, is a device... " Tijfo098 (talk) 18:57, 5 November 2010 (UTC)
thread_title:  Generic trademark, etc.  

message: I have copy-edited the article, but am holding off on removal of the copy edit tag for now until I can get some feedback on my work.
I have also added an expert-subject tag for the confusing sections.  —Preceding unsigned comment added by Anon423 (talk • contribs) 00:25, 7 November 2010 (UTC)
replies: text: I'm removing both cleanup tags at the top. Thank you.--Anon423 (talk) 02:04, 7 November 2010 (UTC)
thread_title:  Copy-edit 

message: considering the fact that Solid State Relays use Optical isolators, having both articles separate seems redundant
(contributor formally known as KB1KOI) 2012-12-03, 18:20 UTC  — Preceding unsigned comment added by 216.19.115.116 (talk) 18:19, 3 December 2012 (UTC)
thread_title: Possible Merge with [[Solid-state relay]]

message: The International Standard IEC60050 for the naming of electrotechnical components only accepts the names "photocoupler" and "optocoupler". Is there a reason why the article name is non standard? --91.15.67.235 (talk) 09:05, 24 August 2013 (UTC)
thread_title:  Article name is not compliant to international standard 

message: Are we sure "dielectric" is the right word for the bit in the middle of an optoisolator? A dielectric is an insulator that can be polarised. This is surely not necessary in an opto, it only needs to be an insulator (and transparent!). Are dielectrics used in real-life optos, if they are, why? Is it a necessary property? Couldn't a theoretical opto be built that meets all the specifications, using a non-dielectric insulator? Depending on this, wouldn't "insulator" be a better word? It'd also be advantageous to beginners in electronics, who might not know what a dielectric is. After all, someone experienced in electronics wouldn't need to look up what an opto is!
84.67.73.190 (talk) 05:03, 19 November 2020 (UTC)
replies: text: It seems to be the jargon used in describing optocouplers. At least one book I have open right now says "dielectric" and "insulator" are synonymous terms.(Electrical Conduction in Solids:An Introduction, Daniel D. Pollock, American Society for Metals, 1985 ISBN 0-87170-203-7, page 241) What insulators cannot be polarized? --Wtshymanski (talk) 06:20, 20 November 2020 (UTC)
thread_title:  Dielectric vs insulator