flash light lens

Flashlight Modding and DIY Parts
1

hi

i creating a diving light and i search lens.

plastic or glass?

is there any attribute to check?

any place to suggest to buy?

thanks

2

lens you can use glass，I have bought some lens form a Chinese company，but they just have their lights size，like 41.5*1.5 ， 34.6*4.0 ；34.6*4.0, 37.3*1.5...They have a lot of size.If you want I can tell you their website

3

I have never tried them but…
www.flashlightlens.com
seems to have some interesting stuff

of course depending on the size you need
http://www.mtnelectronics.com/index.php?route=product/category&path=68_70
has great service

4

Are you talking about an aspheric optical lens, or about a flat window that is traditionally called a “lens” by flashlight people?

5

How big do you need your glass? How deep are your dives? If you are going deep, you will probably need a thicker glass

6

flat lens

7

i use ca11181 brooke -s reflector, a little less then 2 inch of diameter.

i would like to support 300 feet.

8

You can use Abrasion resistant plastic. The thickness needed depends on the diameter of the lens.

9

Check this thread out over at CPF,

http://www.candlepowerforums.com/vb/showthread.php?292465-DIVE-LIGHTING-LIBRARY

Lots of useful links, specially the one about glass thickness…

Hope it helps
AlexGT

10

page 97
http://shop.dev-pein.de/download/ik.pdf?phpMyAdmin=2eacc4a405099ee8e70c339d7fbacbaa

seem interesting, but i don’t fully understand, if there are two glass or not.