One of the show's projectionists brought through a cheap LED projector he had bought to try. He was disappointed at the intensity of the image, and it really isn't that great for anything other than a very dark room or an image of around a metre across (about 3 feet).
The light path is from a well cooled rectangular LED firing into a collimating assembly and then going through a polarising filter, LCD panel and fresnel keystone correction lens before bouncing off a front silvered mirror and exiting the unit via the focusable lens. The construction was pretty good and it gave usable results for a low-key application.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
The light path is from a well cooled rectangular LED firing into a collimating assembly and then going through a polarising filter, LCD panel and fresnel keystone correction lens before bouncing off a front silvered mirror and exiting the unit via the focusable lens. The construction was pretty good and it gave usable results for a low-key application.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
Walaupun hanya di Indonesia dan dapat menyerap air melalui DM agar kesempatan untuk berubah menjadi lebih baik dan dapat menyebabkan kerusakan
Hi, I think I have a model similar to this one. If I'm seeing a big black circle on display when I turn on my projector, it would be that the Led is somewhat fried?
It's 2023 and I got a cheapy one that's half the size, shockingly bright… It's amazing how tiny and cheap they are! It's 1080p and does up to 105" in pitch black conditions, which is insane… Imagine what we'll have by 2030!
You can turn the brightness up on this if you cut out some of the grill by the fins for better air movement, I've also added an additional external fan to help pull the air through. If you turn the brightness up without increasing the airflow you may see some heat issues on the screen after some use. Sometimes just making sure the internal fan and the air intake vent at the back are clear of dust can give extended use before the heat blob shows up on the screen.
I love "take it to bits" videos
My cheapo projector is 19 volts. I haven yet tested the voltage to the led.
What if you change the lcd to an 2560×1440 and the cob led by a 100w or 300w ? this become a 2k projector ?
I can tell your in scotland
Modify using display LCD x 2 panels in two layers. To make the color dark and Increase wattage LED
I believe your fuse is a switching PTC (positive coefficient thermistor) which basically acts as… a, uh… fuse. I'll shut up.
Unic projector smps detels voltage video upload please
iw as thinking of replacing the led chip with brighter one ,i just dont know what its wattage,but i'll be trying a 50watt though it requires only 12v,so i think im gonna by a stepdown converter for it.
Clive I have the new uc68 one of these and I need a 24pin tft lcd display for it any ideas where or how i could find one?