Tema: Re: nepamirshtam zenonu....
Autorius: Fla
Data: 2009-02-23 12:39:21
Jei tikrai idomu, tai prashom, shvieskites, negi gaila:

   http://www.motivemag.com/pub/feature/tech/Motive_Tech_The_Difference_Between_US_and_European_Lights.shtml
   http://en.wikipedia.org/wiki/Headlamp#Construction.2C_performance.2C_and_aim
   http://www.danielsternlighting.com/tech/aim/aim.html

dzonis wrote:
> kuo tau neitinka tvarkingos be zenonu  DOT lempos ?
> 
> "Fla" <klausk_ir_bus_atsakyta@arba.ne> wrote in message 
> news:gntodl$6rk$1@trimpas.omnitel.net...
>> Po@#ui gy!
>>
>> Svarbu kad valdzE paprastu zmogu nesmaugE, ir vis pratesE
>> geru amerikonietishku liustru naudojama automobyliosE. Nu
>> kad ne senais grabais visi vazinetu, ir saugu visiem butu.
>>
>> O tada uz sutaupytus, dar ir sauga gerinanty zenona insimest
>> galim i tas liustras.
>>
>> Dainiushas wrote:
>>> *Disadvantages*
>>>
>>>
>>>           Glare
>>>
>>> Vehicles equipped with HID headlamps are required by ECE regulation 48 
>>> <http://en.wikipedia.org/wiki/World_Forum_for_Harmonization_of_Vehicle_Regulations> 
>>> also to be equipped with headlamp lens cleaning systems and automatic 
>>> beam levelling control. Both of these measures are intended to reduce the 
>>> tendency for high-output headlamps to cause high levels of glare to other 
>>> road users. In North America, ECE R48 does not apply and while lens 
>>> cleaners and beam levellers are permitted, they are not required; [21] 
>>> <http://en.wikipedia.org/wiki/Headlamp#cite_note-20> HID headlamps are 
>>> markedly less prevalent in the US, where they have produced significant 
>>> glare complaints.[22] 
>>> <http://en.wikipedia.org/wiki/Headlamp#cite_note-NHTSA_8885-21> 
>>> Scientific study of headlamp glare has shown that for any given intensity 
>>> level, the light from HID headlamps is 40% more glaring than the light 
>>> from tungsten-halogen headlamps.[23] 
>>> <http://en.wikipedia.org/wiki/Headlamp#cite_note-Vanderlofske-22>
>>>
>>>
>>>           Mercury content
>>>
>>> HID headlamp bulb types D1R, D1S, D2R, D2S and 9500 contain the toxic 
>>> heavy metal <http://en.wikipedia.org/wiki/Heavy_metals> mercury 
>>> <http://en.wikipedia.org/wiki/Mercury_(element)>. The disposal of 
>>> mercury-containing vehicle parts is increasingly regulated throughout the 
>>> world, for example under US EPA regulations 
>>> <http://www.epa.gov/epaoswer/hazwaste/id/univwast/lamps/lamps.htm>. Newer 
>>> HID bulb designs D3R, D3S, D4R, and D4S which are in production since 
>>> 2004 contain no mercury[24] 
>>> <http://en.wikipedia.org/wiki/Headlamp#cite_note-23> [25] 
>>> <http://en.wikipedia.org/wiki/Headlamp#cite_note-24>, but are not 
>>> electrically or physically compatible with headlamps designed for 
>>> previous bulb types.
>>>
>>>
>>>            Lack of backward-compatibility
>>>
>>> The arc light source in an HID headlamp is fundamentally different in 
>>> size, shape, orientation, and luminosity distribution compared to the 
>>> filament light source used in tungsten-halogen headlamps. For that 
>>> reason, HID-specific optics are used to collect and distribute the light. 
>>> HID burners cannot effectively or safely be installed in optics designed 
>>> to take filament bulbs; doing so results in improperly-focused beam 
>>> patterns and excessive glare, and is therefore illegal in almost all 
>>> countries.[26] <http://en.wikipedia.org/wiki/Headlamp#cite_note-25>
>>>
>>>
>>> -- 
>>> Dainius
>>>
>>
>> -- 
>> Ar zinojote, kad "o tau trukdo?" yra labiau diagnoze, nei klausimas? :) 
> 
> 


-- 
Ar zinojote, kad "o tau trukdo?" yra labiau diagnoze, nei klausimas? :)