physics nerd?

Angelwinged_Devil · 04-29-2008, 04:42 PM

do we have anyone here? I need a physics nerd who knows about powerful light and shadows XD plz?

ArcticWolf · 04-29-2008, 04:59 PM

Ask me. I'm not a physicist, just a plain geek~nerd, but I'll try to help.

spartan27583 · 04-30-2008, 12:38 AM

I know Plover from Inquisition is taking AP physics right now in school. He should be able to answer your physics question.

DkySven · 04-30-2008, 09:02 AM

I know a little about Physics. (actually it's my best subject at school but I'm only in the 3th class yet). What's your question?

Ulmanyar · 04-30-2008, 03:37 PM

I'm studying engineering physics, but I'm just on my 2nd year, although I actually have studied some optics. Give us your question, and we could probably give you an answer..

Angelwinged_Devil · 04-30-2008, 06:22 PM

oh well, I have this projectorlamp and I want to Light it on a wall and put something in front of it so it will write it on the wall.
Unfortunately inside the lamp the light is some sort of reflection layer which casts the light in every angle, so when I try to put something in front of it I can hardly see the shadow on the wall.
It's a project spotlight thingy which is often used at buildsites

DkySven · 04-30-2008, 06:46 PM

Buy a new light for in the lamp. Other option is to buy expensive mirrors to make the lamp shine in one direction.

Angelwinged_Devil · 04-30-2008, 07:06 PM

Quote:

Originally Posted by asdfghs

Buy a new light for in the lamp. Other option is to buy expensive mirrors to make the lamp shine in one direction.

I have to use it for tomorrow XD

my thought was to put a box on the end so it did light in one direction, at the end of the box there would be the picture of what I wanted to write, maybe it will be written in the light instead though XD

ArcticWolf · 04-30-2008, 10:41 PM

Quote:

Originally Posted by Angelwinged_Devil

I have to use it for tomorrow XD

my thought was to put a box on the end so it did light in one direction, at the end of the box there would be the picture of what I wanted to write, maybe it will be written in the light instead though XD

Light has to be aligned, or else the projection would result in a blurry image.

Hold on, I KNOW I have something about optics in my archive.

Ulmanyar · 05-01-2008, 01:52 AM

You may end up with lower intensity, but try this for better results:

First, make a thin slit and put it on front of the lamp (not too close, though, because of the heat!). Perhaps you could have a box around the lamp?

Then make your letters quite large, so that they can be put half a meter after the slit and still be big enough on the wall. This is to reduce diffraction and dispersion, otherwise all your letters would be all fuzzy and blurred, if visible at all.

Hopefully the result will be better, and tell me if I need to be more precise in my explanation

Good luck!

04-29-2008, 04:42 PM	#1
Angelwinged_Devil Banned Join Date: Feb 2007 Location: Under your skin Posts: 1337 Posts: 2,490	physics nerd? do we have anyone here? I need a physics nerd who knows about powerful light and shadows XD plz?

04-29-2008, 04:59 PM	#2
ArcticWolf Duke Join Date: Nov 2006 Location: 0x00CAFE Posts: 3,366	Ask me. I'm not a physicist, just a plain geek~nerd, but I'll try to help. __________________ I don't have a solution, but I admire the problem.

04-30-2008, 12:38 AM	#3
spartan27583 Apprentice Join Date: Oct 2007 Location: In argentina, stalking Surak :p Posts: 69	I know Plover from Inquisition is taking AP physics right now in school. He should be able to answer your physics question. __________________ The Order of Ironfist The Order Of Ironfist Forums: http://orderofironfist.proboards49.com/ Sparticus lvl 50 Wood Elf Hunter - Tokahashi lvl 42 Wood Elf Conjurer - Tsubaki lvl 38 Half-elf Marksmen SEMI-RETIRED NGD remove the fatigue

04-30-2008, 09:02 AM	#4
DkySven Marquis Join Date: Jul 2007 Location: The Netherlands Posts: 2,076	I know a little about Physics. (actually it's my best subject at school but I'm only in the 3th class yet). What's your question? __________________ Dky Sven, level 54 knight (Ra) Valhalla Dky the Goat, level 35 conjurer(Ra) Dky Sven, level 51 knight(Horus) Something

04-30-2008, 06:46 PM	#7
DkySven Marquis Join Date: Jul 2007 Location: The Netherlands Posts: 2,076	Buy a new light for in the lamp. Other option is to buy expensive mirrors to make the lamp shine in one direction. __________________ Dky Sven, level 54 knight (Ra) Valhalla Dky the Goat, level 35 conjurer(Ra) Dky Sven, level 51 knight(Horus) Something

04-30-2008, 03:37 PM	#5
Ulmanyar Initiate Join Date: Dec 2007 Location: Sweden Posts: 231	I'm studying engineering physics, but I'm just on my 2nd year, although I actually have studied some optics. Give us your question, and we could probably give you an answer..

04-30-2008, 06:22 PM	#6
Angelwinged_Devil Banned Join Date: Feb 2007 Location: Under your skin Posts: 1337 Posts: 2,490	oh well, I have this projectorlamp and I want to Light it on a wall and put something in front of it so it will write it on the wall. Unfortunately inside the lamp the light is some sort of reflection layer which casts the light in every angle, so when I try to put something in front of it I can hardly see the shadow on the wall. It's a project spotlight thingy which is often used at buildsites

05-01-2008, 01:52 AM	#10
Ulmanyar Initiate Join Date: Dec 2007 Location: Sweden Posts: 231	You may end up with lower intensity, but try this for better results: First, make a thin slit and put it on front of the lamp (not too close, though, because of the heat!). Perhaps you could have a box around the lamp? Then make your letters quite large, so that they can be put half a meter after the slit and still be big enough on the wall. This is to reduce diffraction and dispersion, otherwise all your letters would be all fuzzy and blurred, if visible at all. Hopefully the result will be better, and tell me if I need to be more precise in my explanation Good luck!