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Author Topic: **Infrared..on making its distance larger  (Read 2214 times)
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« on: February 28, 2009, 09:51:57 AM »

 Smiley Smiley Hi!! ask q lng if possible b n malki ung length ng infrared??? does it smthng 2 do with XY lazer infrared??
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« on: February 28, 2009, 09:51:57 AM »

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« Reply #1 on: February 28, 2009, 10:39:43 AM »

Malaki ang length ng infrared? Well, for one, you can increase your input power or try to focus your focal point, wait for the reply of Electron, mas mgaling sya sa field ng optics.



















Kaya magaling rin mamboso.
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« Reply #2 on: February 28, 2009, 10:41:57 AM »

sorry..i mean MPALAKI pla ung length ng infrared...ung distance nya,,,tnx!! i'll w8 n mgrply xia...
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« Reply #3 on: February 28, 2009, 10:52:23 AM »

Kaya magaling rin mamboso.

Grin Grin Grin
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« Reply #4 on: February 28, 2009, 11:26:37 AM »

OT. nyahaha IDOL ko pa rin yun si sir ELECTRON.


matagal ko na ring gustong malaman to mga sir kung papano mapapalayo ang range ng isang IR emitter. or kailangan din bang iconsider ang IR receiver for optimum reception?
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« Reply #5 on: February 28, 2009, 11:45:11 AM »

Smiley Smiley Hi!! ask q lng if possible b n malki ung length ng infrared??? does it smthng 2 do with XY lazer infrared??

do you mean range? .. paano mapapalayo yung range? ..

tatlo lang naman ang solution diyan.. either increase the intensity of your infrared source ( add more inrared LED or use an IR Laser ), use beam shaping optics ( collimating lens or parabolic reflector tulad nung nasa flashlight ) and finally, increase the sensitivity of your IR receiver ( use photodarlington transistors or large are PIN Photodiode "BPW34F" then connect it to a transimpedance amplifier ) ..
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« Reply #6 on: February 28, 2009, 11:51:55 AM »

ang mga ir receiver sa mouse sir electron bakit hindi nakakadetect ng laser pointer? or need lang talagang ipasok pa sa amplifier ang narereceive ng receiver na yun?
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« Reply #7 on: February 28, 2009, 11:54:17 AM »

ang mga ir receiver sa mouse sir electron bakit hindi nakakadetect ng laser pointer? or need lang talagang ipasok pa sa amplifier ang narereceive ng receiver na yun?

kasi yung IR receiver ng mouse ay may Visible Light Filter (black plastic).. hindi niya pinapapasok ang ilaw from Red to Violet..
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« Reply #8 on: February 28, 2009, 11:57:38 AM »

a yun pala ang reason. Grin

pero sir sa mga lumang mouse may mga IR receiver at emitter din na walang filter. the problem is, since magkamukha sila, diko na alam kung alin dun ang TXr at RXr. yung transparent na IR receiver sa tingin po pwedeng makadetect ng light coming from the laser pointer?
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« Reply #9 on: February 28, 2009, 12:01:36 PM »

a yun pala ang reason. Grin

pero sir sa mga lumang mouse may mga IR receiver at emitter din na walang filter. the problem is, since magkamukha sila, diko na alam kung alin dun ang TXr at RXr. yung transparent na IR receiver sa tingin po pwedeng makadetect ng light coming from the laser pointer?

typically, basta transparent and windows it can detect visible light coming from red laser pointers..
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« Reply #10 on: February 28, 2009, 12:03:38 PM »

Told yah, yan ang expert dyan...














Lalo na sa ibang bagay rin hehehe....
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« Reply #11 on: February 28, 2009, 12:07:46 PM »

typically, basta transparent and windows it can detect visible light coming from red laser pointers..

ang problema ko na lang ay kung papano malaman kung which is which.hehe
alin kaya dun ang emitter at receiver.hehe experimento!!!

ayos talaga tong si sir electron, parang nasa industrial elex class lang naman ako. gaya nun.hehe
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« Reply #12 on: February 28, 2009, 12:09:21 PM »

Ninong Electron,

patanong na rin Grin Grin Grin yung sa mga movies, red laser para sa mga intruder alert, was it reflected on glass? or kanya kanyang light source per line?

I tried the glass technique pero habang dumadami ang reflection sa glass,  nagiging diffused na yung laser and di na siya kasing pointed unlike before reflecting sa glass... ibang klaseng glass kaya ang ginagamit doon?
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« Reply #13 on: February 28, 2009, 12:10:41 PM »

Ninong Electron,

patanong na rin Grin Grin Grin yung sa mga movies, red laser para sa mga intruder alert, was it reflected on glass? or kanya kanyang light source per line?

I tried the glass technique pero habang dumadami ang reflection sa glass,  nagiging diffused na yung ilaw and di na siya kasing pointed unlike before reflecting sa glass... ibang klaseng glass kaya ang ginagamit doon?

Sabi sa mythbusters, wala raw gumagamit intruder alert na visible light.
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« Reply #14 on: February 28, 2009, 12:27:26 PM »

kelan pinalabas yan sa mythbusters? this year? hanap ako baka may archive nyan sa website ng discovery hehehe
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« Reply #15 on: February 28, 2009, 12:28:30 PM »

Ninong Electron,

patanong na rin Grin Grin Grin yung sa mga movies, red laser para sa mga intruder alert, was it reflected on glass? or kanya kanyang light source per line?

I tried the glass technique pero habang dumadami ang reflection sa glass,  nagiging diffused na yung laser and di na siya kasing pointed unlike before reflecting sa glass... ibang klaseng glass kaya ang ginagamit doon?

hindi ako familiar sa mga intruder detector na gumagamit ng laser.. pero magiging expensive ang setup kung individual laser ang gagamitin..
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« Reply #16 on: February 28, 2009, 12:35:38 PM »

eto mythbusters: Laser Guarded Room



currently watching heheheh.... baka may makuhang tips Grin Grin Grin
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« Reply #17 on: February 28, 2009, 12:53:43 PM »

galing nung clip.. wala pala daw talagang visible na laser...

1. yung make-up binlow nila para makita yung laser beam, pero too much blow, yung particles ng make up can break the beam hehehe... myth busted, di sila makatawid sa laser beams Grin Grin Grin
2. night vision googles... hinde gumana sa mga beam although kita yung laser sa mga  source at ends ... myth busted
3.  laser substitution... eto ang gumana at sabi nila could cause the detector to be tricked.. I think may workaround ito,  I think pwede gawan ng on-off timing cycle ang laser at ichecheck ito ng detector (MCU will control the on-off toggling ng laser, tapos siya rin ang magdedetect)... magsubstitute man sila ng laser, kelangan alamin nila ang exact timing ng on-off pulse nung laser)... hehe
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« Reply #18 on: February 28, 2009, 01:07:24 PM »

3.  laser substitution... eto ang gumana at sabi nila could cause the detector to be tricked.. I think may workaround ito,  I think pwede gawan ng on-off timing cycle ang laser at ichecheck ito ng detector (MCU will control the on-off toggling ng laser, tapos siya rin ang magdedetect)... magsubstitute man sila ng laser, kelangan alamin nila ang exact timing ng on-off pulse nung laser)... hehe

mas mahirap pa kung nagpapalit 'yung timing ng cycle. Grin Grin Grin
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« Reply #19 on: February 28, 2009, 01:09:10 PM »

mas mahirap pa kung nagpapalit 'yung timing ng cycle. Grin Grin Grin

Grin Grin Grin
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