Tema: Re: Lumenai
Autorius: nu blyn
Data: 2009-05-15 12:39:40
Is serijos, kad nepachiupinejes nepatikrinsi :(

"Ingodas Vytrastas" <ejs@no.where> wrote in message 
news:gujcs8$j8u$1@trimpas.omnitel.net...
> nu blyn wrote:
>> Kiek standartines masinos lempos skleidzia lumenu ? Palyginimui butu 
>> tarkim pruzikas is dealextremo nusipirkau 180lumenu .... sviechia puikiai 
>> jis ir nebetoli masinos lempu sviesai, Yra pruziku po 700 lumenu, kaip 
>> isivaizduoti kiek sviechia jie ? Biski brangu pirkti neisivaizduojant 
>> koks ju galingumas, su kuo palygint ?
>
> Beam Peak Intensity Reference Number
>
> This marking is found only on ECE/EEC type approved forward lighting 
> devices that produce a high ("upper", "driving") beam, and expresses the 
> maximum light intensity in the beam. This marking is NOT an indicator of 
> lamp performance or quality. It does not indicate where in the beam this 
> maximum occurs, nor does it imply anything about the shape of the beam. 
> The marking is a number such as 10, 12.5, 17.5, 20, 25, 27.5, 30, etc. 
> Maximum authorized total high-beam peak intensity per a vehicle under ECE 
> regulations is 225,000 candela at 12 Volts, and many countries that adhere 
> to ECE or EEC regulations use this marking to determine the lighting 
> legality of vehicles in use. 225,000 candela corresponds to a peak beam 
> intensity reference number total of 75, so many countries stipulate that 
> all beam peak intensity reference numbers found on all devices on a single 
> vehicle must total up to no more than 75.
>
> To learn the peak beam candlepower of a lamp with a standard-wattage bulb 
> operating at 12 Volts, divide the reference number on the lamp by 37.5, 
> then multiply the result by 112,500. But remember, a lamp with a higher 
> reference number is not necessarily a better lamp than one with a lower 
> number.