[EVDL] TESLA X Spotting

[Steven Lough via EV]

in the REAL World !

Dateline Seattle Washington !

NE Seattle

Sand Point Way at  Prinston Ave,  AT THE RED LIGHT

2:19 pm  Pacific Standard Time  Jan. 2nd,  2016

Tesla X with 3 passengers,  Light Silver,

Sorry...  Couldn't get my iPhone, OR my camera out in time 
to snap a picture.


  Light turned GREEN and he was OFF like a SHOT !

--
Steven S Lough
President EMERITUS
Seattle EV Association
206 524 1351
WEB: www.seattleeva.org

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Re: [EVDL] tesla X spotting

[Cor van de Water via EV]

Hi KO,
Not entirely but a similar effect.
Often tail lights will blink faster than 60 Hz, you can estimate how much by 
sweeping your eyes across the lights
at night and comparing the number of flashes that you see to the number that 
you get from a 60 Hz indicator light
such as a LED or neon bulb.

Cor van de Water
Chief Scientist
Proxim Wireless Corporation http://www.proxim.com
Email: cwa...@proxim.comPrivate: http://www.cvandewater.info
Skype: cor_van_de_water XoIP: +31877841130
Tel: +1 408 383 7626Tel: +91 (040)23117400 x203



-Original Message-
From: EV on behalf of K O via EV
Sent: Sat 8/1/2015 8:28 PM
To: ev@lists.evdl.org; ev-requ...@lists.evdl.org
Subject: [EVDL] tesla X spotting
 
are the flickering tail lights in the tesla VDO an artifact of 60cycle and 50 
cycle "cross talk" inthe cameras '"eye"? I don't shop where I can't charge.
Message: 1
Date: Fri, 31 Jul 2015 19:42:26 -0400
From: EVDL Administrator via EV 
To: Electric Vehicle Discussion List 
Subject: Re: [EVDL] EVLN: Tesla-X sighting/spied in Berkeley-CA (v)
Message-ID: <55bbcfa2.5287.fb25...@evpost.drmm.net>
Content-Type: text/plain; charset=US-ASCII

On 31 Jul 2015 at 0:50, brucedp5 via EV wrote:

> % 2nd video is amateur-awful but note the flickering rear tail lights %

I don't know that I could do much better if I were trying to shoot video 
while driving (which is not only awkward but hazardous, IMO).  He should 
have rotated it 90 degrees before posting, though, since most of the clip 
was shot in landscape mode.

I think Cor probably nailed it on the taillights.  Interesting if Tesla's 
are indeed full on when braking.  Most factory LED taillights are never full 
on, but are pulsed even when at full brightness.  This lets the drivers  
overdrive the LEDs for more apparent brightness, without overheating them.  
The eye's persistence of vision fills in the off-time unless you or the 
lights move.  (Interesting that a circuit to do this is presumably cheaper 
than higher-native-brightness LEDs.)

David Roden - Akron, Ohio, USA
EVDL Administrator

  
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[EVDL] tesla X spotting

[K O via EV]

are the flickering tail lights in the tesla VDO an artifact of 60cycle and 50 
cycle "cross talk" inthe cameras '"eye"? I don't shop where I can't charge.
Message: 1
Date: Fri, 31 Jul 2015 19:42:26 -0400
From: EVDL Administrator via EV 
To: Electric Vehicle Discussion List 
Subject: Re: [EVDL] EVLN: Tesla-X sighting/spied in Berkeley-CA (v)
Message-ID: <55bbcfa2.5287.fb25...@evpost.drmm.net>
Content-Type: text/plain; charset=US-ASCII

On 31 Jul 2015 at 0:50, brucedp5 via EV wrote:

> % 2nd video is amateur-awful but note the flickering rear tail lights %

I don't know that I could do much better if I were trying to shoot video 
while driving (which is not only awkward but hazardous, IMO).  He should 
have rotated it 90 degrees before posting, though, since most of the clip 
was shot in landscape mode.

I think Cor probably nailed it on the taillights.  Interesting if Tesla's 
are indeed full on when braking.  Most factory LED taillights are never full 
on, but are pulsed even when at full brightness.  This lets the drivers  
overdrive the LEDs for more apparent brightness, without overheating them.  
The eye's persistence of vision fills in the off-time unless you or the 
lights move.  (Interesting that a circuit to do this is presumably cheaper 
than higher-native-brightness LEDs.)

David Roden - Akron, Ohio, USA
EVDL Administrator

  
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