Click here to Skip to main content
13,138,694 members (50,507 online)

Welcome to the Lounge


For discussing anything related to a software developer's life. Technical discussions are encouraged, but click here to ask your programming questions.

The Lounge is rated PG. If you're about to post something you wouldn't want your kid sister to read then don't post it. No flame wars, no abusive conduct, no programming questions and please don't post ads.
GeneralOptical mouse Pin
Rob Philpott24-Jan-13 22:53
memberRob Philpott24-Jan-13 22:53 
The first optical mouse I ever used was alarmingly 22 years ago, at University and came married to a mat with a matrix of fine dots covering it. Poor thing was plugged into an 'Amiga'. I can't remember when it evolved into not needing the mat, but have been aware ever since that that the light on the bottom illuminates the surface it's on at an acute angle - the reason for which I have convinced myself I just didn't need to know and was a matter of 'optics'.

I grew dissatisfied with this two days ago an embarked upon a bit of micro-research about optical mice, one conclusion of which is that the American Patent system is wholly absurd. Anyway, here's why (it’s obvious). Rather than capture an image of a grainy surface, by shining the light at the angle you can capture the shadows of a grainy surface which makes for better input into you motion logic. Cool huh? I've got a nasty feeling anyone reading this knew that already. And how many times does it compare shadows? Up to a thousand times per second.

There you go, two facts you can use next time you’re in the pub.
Rob Philpott.

GeneralRe: Optical mouse Pin
Nagy Vilmos24-Jan-13 23:23
memberNagy Vilmos24-Jan-13 23:23 
GeneralRe: Optical mouse Pin
OriginalGriff24-Jan-13 23:30
mvpOriginalGriff24-Jan-13 23:30 
GeneralRe: Optical mouse Pin
Nagy Vilmos24-Jan-13 23:31
memberNagy Vilmos24-Jan-13 23:31 
GeneralRe: Optical mouse Pin
jim lahey24-Jan-13 23:54
memberjim lahey24-Jan-13 23:54 
GeneralRe: Optical mouse Pin
Dalek Dave24-Jan-13 23:57
memberDalek Dave24-Jan-13 23:57 
GeneralRe: Optical mouse Pin
Nagy Vilmos25-Jan-13 0:08
memberNagy Vilmos25-Jan-13 0:08 
GeneralRe: Optical mouse Pin
OriginalGriff25-Jan-13 0:15
mvpOriginalGriff25-Jan-13 0:15 
GeneralRe: Optical mouse Pin
Nagy Vilmos25-Jan-13 0:16
memberNagy Vilmos25-Jan-13 0:16 
GeneralRe: Optical mouse Pin
Marc Clifton25-Jan-13 3:19
protectorMarc Clifton25-Jan-13 3:19 
GeneralRe: Optical mouse Pin
GeekforChrist25-Jan-13 3:43
memberGeekforChrist25-Jan-13 3:43 
GeneralRe: Optical mouse Pin
Big Daddy Farang25-Jan-13 5:37
memberBig Daddy Farang25-Jan-13 5:37 
GeneralRe: Optical mouse Pin
Isfeasachme28-Jan-13 4:24
memberIsfeasachme28-Jan-13 4:24 
GeneralRe: Optical mouse Pin
Vark11125-Jan-13 5:47
memberVark11125-Jan-13 5:47 
GeneralRe: Optical mouse Pin
JeremyBob27-Jan-13 21:05
memberJeremyBob27-Jan-13 21:05 
GeneralRe: Optical mouse Pin
patbob28-Jan-13 5:24
memberpatbob28-Jan-13 5:24 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

Advertise | Privacy |
Web02 | 2.8.170915.1 | Last Updated 19 Sep 2017
Copyright © CodeProject, 1999-2017
All Rights Reserved. Terms of Service
Layout: fixed | fluid