Author Topic: Improving a very directional light  (Read 733 times)

mattc

  • n.b. have grown beard since photo taken
    • Didcot Audaxes
Improving a very directional light
« on: September 13, 2019, 07:29:15 pm »
I believe the Magic shine front lights have a lateral diffuser-type adaptor that spreads the beam around a bit more.

Are there any similar bodges possible for the many rear lights that suffer a lack of spread?
Has never ridden RAAM
---------
No.11  Because of the great host of those who dislike the least appearance of "swank " when they travel the roads and lanes. - From Kuklos' 39 Articles

Re: Improving a very directional light
« Reply #1 on: September 13, 2019, 07:44:45 pm »
A fresnel lens is what you need.
Depending what part you cut out of it, it will widen or narrow your light beam
Ebay probably the best bet

Re: Improving a very directional light
« Reply #2 on: September 13, 2019, 08:26:49 pm »
Bubble wrap

Re: Improving a very directional light
« Reply #3 on: September 13, 2019, 08:36:55 pm »
And  Vaseline.


Tim Hall

  • I want to eat the fleeting shade of your lashes
Re: Improving a very directional light
« Reply #5 on: September 13, 2019, 10:53:25 pm »
Bubble wrap
And  Vaseline.

The hoped for follow up hit to "Milk and Alcohol". Sadly it it got nowhere.
There are two ways you can get exercise out of a bicycle: you can
"overhaul" it, or you can ride it.  (Jerome K Jerome)

mattc

  • n.b. have grown beard since photo taken
    • Didcot Audaxes
Re: Improving a very directional light
« Reply #6 on: September 18, 2019, 07:06:18 pm »
Wasn't that an Oasis song?
Has never ridden RAAM
---------
No.11  Because of the great host of those who dislike the least appearance of "swank " when they travel the roads and lanes. - From Kuklos' 39 Articles

fuaran

  • rothair gasta
Re: Improving a very directional light
« Reply #7 on: September 18, 2019, 08:26:46 pm »
Fit a modern super-bright LED inside an old Eveready bike light.

Re: Improving a very directional light
« Reply #8 on: September 19, 2019, 01:06:34 pm »

Cudzoziemiec

  • Solar powered, tea fuelled cycle-wol
Re: Improving a very directional light
« Reply #9 on: September 19, 2019, 01:08:44 pm »
Wasn't that an Oasis song?
Or a film by Jim Jarmusch?

Or was Tim actually thinking of cling film rather than bubble wrap?
https://metro.co.uk/2018/03/24/really-wouldnt-recommend-blackhead-melting-cling-film-vaseline-trick-7413781/
sideways bounding monkey lounging under fruit tree

Re: Improving a very directional light
« Reply #10 on: September 19, 2019, 02:37:37 pm »
...Are there any similar bodges possible for the many rear lights that suffer a lack of spread?

I DIY diffusers for my seatstay-mounted Smart 1W rear lights, from small white plastic containers; very effective due to the power of the lights.

edit
Destroying rainforest for economic gain is like burning a Renaissance painting to cook a meal.  EOW.

rr

Re: Improving a very directional light
« Reply #11 on: September 19, 2019, 03:12:07 pm »
Wasn't that an Oasis song?
Doctor Feelgood used the title first.

Sent from my moto x4 using Tapatalk


mattc

  • n.b. have grown beard since photo taken
    • Didcot Audaxes
Re: Improving a very directional light
« Reply #12 on: September 19, 2019, 07:22:59 pm »
Wasn't that an Oasis song?
Doctor Feelgood used the title first.
There's a Doctor Feelgood record called Bubble Wrap and Vaseline? You learn something every day ...
Has never ridden RAAM
---------
No.11  Because of the great host of those who dislike the least appearance of "swank " when they travel the roads and lanes. - From Kuklos' 39 Articles

Re: Improving a very directional light
« Reply #13 on: September 19, 2019, 07:55:27 pm »
Bubble wrap
And  Vaseline.

The hoped for follow up hit to "Milk and Alcohol". Sadly it it got nowhere.

Bzzzt!
Repetition:
'it it'.

Cudzoziemiec

  • Solar powered, tea fuelled cycle-wol
Re: Improving a very directional light
« Reply #14 on: September 19, 2019, 08:02:44 pm »
Wasn't that an Oasis song?
Doctor Feelgood used the title first.
There's a Doctor Feelgood record called Bubble Wrap and Vaseline? You learn something every day ...
I thought it was by Blur.
sideways bounding monkey lounging under fruit tree