Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Lenses & First Surface Mirrors from DLP & CRT big screen TVs (pic heavy)

Joined
Mar 11, 2009
Messages
898
Points
0
Well a few weeks ago at a friends house I saw he had a old DLP TV in the garage. I told him I wanted it for the mirrors and whatever else I might find...he said "take it". I went back over the weekend and grab the TV.
The DLP was a 61 inch RCA made in 2004.

Picture of TV
IMG_20140419_141106_387.jpg


projector that will be disassembled for lenses
IMG_20140421_140443_972.jpg


kick ass lenses removable from a chamber that clips together
IMG_20140421_140828_050.jpg

IMG_20140421_140906_649.jpg

IMG_20140419_214135_583.jpg


5 really bad shape first surfaces mirrors
IMG_20140421_141511_039.jpg


a very nice "whatever" that has a first surface mirror on a 45 incased in optical glass that can be hit from different angles. love this piece
IMG_20140421_140649_362.jpg

IMG_20140421_140549_452.jpg

IMG_20140421_140631_288.jpg

IMG_20140421_140606_112.jpg


a large First Surface Mirror
IMG_20140421_140330_221.jpg


And a Giant First Surface Mirror :) I've been looking at these and price was insane
IMG_20140419_183733_568.jpg


while taking this TV apart in my yard my neighbor wondered over to see what I was doing. After telling him what and why he says "I've got part of a big screen TV you can have". So I go over to his place and grabbed what was once the tubes and lenses of a CRT big screen TV.
Now I have 3 more huge optic lenses to mess with.
the outer two lenses are plastic only the middle is glass but I got all 3 CRT's so 3 lenses.
IMG_20140421_081826_471.jpg

IMG_20140421_082032_764.jpg

IMG_20140421_082311_950.jpg

IMG_20140421_213625_368.jpg


nothing better than free stuff that's awesome :)
 





Joined
Feb 21, 2013
Messages
5,013
Points
0
People literally throw those out weekly at my complex. Ive seen like 30 of them since ive lived here. Now I will scrap them when I see them and make some money on lens :) heck id sell them for like $5/ea and itd be worth it for me and who ever wants them. Hahaha I just want to smash the left over TV parts, free lens I could care less about :na:
 
Joined
May 4, 2009
Messages
5,443
Points
113
Some of the big plastic Fresnel lenses are worth bucks as they can cut a 2x4 in 1/2 with only sun light, now not all big
screens have the same lenses so you will have to take a few apart to see which ones are the best burners.

Now you can cook food or temper steel for free and have an even smaller carbon foot print ;)

 
Last edited:
Joined
Mar 11, 2009
Messages
898
Points
0
Ive seen like 30 of them since ive lived here. free lens I could care less about :na:
wow 30 of them and you didn't snag some parts? And I care about free lenses love them. And tell me you didn't want the giant first surface mirrors either :)

forgot to post the picture of the cool color wheel on an electric motor.
 
Joined
Feb 21, 2013
Messages
5,013
Points
0
I couldnt use that massive mirror, especially since I'm moving 1400 miles within a month.........

If I knew those had lens in them like that then I would have taken all of them. I'm selling a old RCA 52" DLP TV right now. Half debating telling the buyer its not for sale and just scraping parts out of it. Might make more money off the lens then the TV whole lol

Got to remember, those big old TVs are college students best friends. Cheap large screens ;)
 
Joined
Mar 11, 2009
Messages
898
Points
0
Livinloud I'd be happy to send you one of the large lenses if you want one just pay shipping
 
Joined
Mar 11, 2009
Messages
898
Points
0
Some of the big plastic Fresnel lenses are worth bucks as they can cut a 2x4 in 1/2 with only sun light, now not all big
screens have the same lenses so you will have to take a few apart to see which ones are the best burners.
yep I just burnt through a cardboard box with it
IMG_20140419_225340_462.jpg


still thinking of a use for the color wheel

IMG_20140419_160148_382.jpg

IMG_20140419_160208_559.jpg
 
Last edited:
Joined
Jul 4, 2012
Messages
2,834
Points
63
Cool...I took apart one of those old chunker tv`s, and popped apart one of the bulb/lens assemblies inside....only to have some unknown oily liquid spill out everywhere :/
 
Last edited:
D

Deleted member 16589

Guest
Cool...I took apart one of those old chunker tv`s, and popped apart one of the bulb/lens assemblies inside....only to have some unknown oily liquid spill out everywhere :/

LOL I had the same thing happen when I took one apart. all I got was 3 CRT tubes I assume one for each color RGB only one had a colored filter in it and IIRC it was a green one. I opened it up to take the filter and oil split everywhere. worst yet it was all for nothing the acrylic filter had begun to break down in the oil.
most of the optics were some king of plastic/acrylic I got one large and thick glass optic out of the hole thing

Edit the glass optic i got was the one in the middle in this pick
I only got one.
 
Last edited by a moderator:
Joined
Mar 11, 2009
Messages
898
Points
0
hahaha I also spilled the fluid out of them. After the first one I decided to film the others.

 
Last edited:

edison

0
Joined
Jun 12, 2010
Messages
26
Points
3
Thanks for the post. I,m looking for a big size mirror and didn,t knew that these TV,s had one in them. If the mirror isn,t used any more i,m interested.
 





Top