| Author | Message | ||
     Michael W. Bogucki Rating: N/A |
Hi All, I was wondering if anyone has used the LCD, from shutter glasses, as an optical shutter? I've been playing around with different ideas, but I cannot get the LCD's to become opaque in all regions of the LCD. Does anyone have any recommendations or tips that I could follow that would help me to design a driver that will drive a LCD to maximun opacity? I'm trying to do something similar to what those auto-darkening welding helmets do. Of course I won't be staring at a welding arc with this. =) Thanks for any suggestions.... --Mike | ||
| Andreas Schulz Rating: N/A |
Just two hints: a) Voltage - most glasses I've seen need 10-15 Volts, usually they get 10V (5V from PC doubled) or 12V (two 3V Li-cells doubled), but more should be still better. b) AC drive - Your application sounds like the glasses are to be shut for some time. LCD panels don't like DC driving, so you have to provide some modulation circuit (which isn't too difficult). See the homebrew section here for some sample circuits, including mine;-) What are you going to build - Zaphod's peril-sensitive sunglasses :-)) ? | ||
| John Billingham Rating: N/A |
A while ago, I was searching for various camera shutters on E-Bay. I kept noticing suplus LCD shutters for sale, some made by Melles-Griot. While I was curious, I didn't get one, but perhaps YOU should! JB |
