smart51
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| posted on 18/10/07 at 09:02 PM |
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dipped beam angle
Do dipped beam headlights have to slope up to the left or can they be level? How much do they have to slope if they do?
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iank
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| posted on 18/10/07 at 09:34 PM |
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There are horribly complicated diagrams in the SVA manual in section 9.3 (which unhelpfully isn't in the dodgy pdf) which show headlamp aim and
kickup/breakpoint/horizontal cut-off limits.
Unfortunately I don't own a scanner and the text makes no sense without the diagram (to be honest it's all greek to me even with the
diagram).
If no one else has the manual+scanner I'll have a scout around the family to see what can be done at the weekend.
[Edited on 18/10/07 by iank]
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Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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RazMan
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| posted on 18/10/07 at 10:35 PM |
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It definitely requires a 15 degree kick up to the left.
[Edited on 18-10-07 by RazMan]
 
Rescued attachment SVA Headlights.jpg
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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matt_claydon
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| posted on 19/10/07 at 07:51 AM |
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For a really accurate drawing, look on Page 34 in this pdf: http://www.unece.org/trans/main/wp29/wp29regs/r112r1e.pdf
The dimensions are for measurement on a screen 25m from the vehicle.
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iank
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| posted on 19/10/07 at 07:51 AM |
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Unfortunately the monochrome scan has lost the big yellow splodge illustrating the beam shape expected.
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Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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DarrenW
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| posted on 19/10/07 at 08:52 AM |
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I read the book, didnt understand a word, chucked it to one side and set up lamps with vertical board just in front of the car. I marked the headlight
centre points on the board. Made sure full beam brightest spot was on the centre mark. Switched to dipped and observed the beam dropped a touch and
moved to the left. Then rotated the lens so the horizontal bit was horizontal, the angle is then a product of the headlight itself. Passed SVA no
probs and tester even commented that they were very accurately set - which was nice.
Surprisingly easy to do in the garage.
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iank
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| posted on 19/10/07 at 09:31 AM |
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From the other thread about getting an E-mark, I think smart51 is trying to manufacture some LED headlights that throw the correct beam shape.
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Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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smart51
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| posted on 21/10/07 at 12:41 PM |
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This is the published beam pattern. Do I have to fill the unshaded area or do I have to make no light in the unshaded area?
None of the headlights on my cars fill the unshaded area but that doesn't mean they're not supposed to.
 
Rescued attachment dipped beam.jpg
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rusty nuts
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| posted on 21/10/07 at 01:39 PM |
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Newer Porsches do not have the 15 degree kick up they just have a flat top to the beam pattern. Believe the same applies to other new cars as well
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.jpg)
