Active or passive 3D in current projectors (Optoma, Benq, etc.)?
Hello everyone
I'm interested in 3D projectors and have heard that there are two 3D technologies. However, when I look into the technical details of current projectors (e.g., the Optoma UHZ 4000), it just says "Full 3D" and "3D" everywhere. What does that mean? How do I know which projector supports which technology? How do I know which 3D glasses are needed for which projector? Or do current projectors support both passive and active 3D?
What do I have to pay attention to?
(1 votes)
Loading...
There are (if I know) no consumer beamers in the affordable area (less than 30000€) who support a passive 3D.
And usually there are 2 different types of connection:
DLP-Link
And
Infrared/Bluetooth
The Optoma is a DLP device therefore it will need DLP-Link glasses. I have a JVC that in turn needs RF glasses(Infrared/Bluetooth).
Passive 3D uses polarization filters in the light path and in the spectacles. This is only used in the big cinema. Economy of Scale. A 3D polfilter disc around 10,000€ in front of the projector and cheap glasses make more sense than giving every viewer a shutter glasses of 90€.
Passive 3D was also used on TV. Each pixel line had a different polarization. Thus the 3D image has only half the resolution in height.
Projectors for home are all active. For more towelded people who may call a very wide canvas their own, however, there are similar systems as in the cinema where filters are mounted in front of 2 identical projectors.
Mostly the DLP Beamer and there is Actives 3D
For DLP Beamer you need the following glasses
https://www.hi-shock.de/?sPartner=gad23&gad_source=1&gclid=CjwKCAiAzPy8BhBoEiwAbnM9OxP-frqy3QRbtizvd7mvyeN8h3nYjL8Ja9X8zQ2s_WRBd7C2bcXhoC
DLP Beamer can have an unsightly rainbow effect (not for everyone I can’t see it)