Posts Tagged ‘3D Active Shutter Glasses’
For this Blog (and the next) I will focus on the subject of 3D crosstalk, or frequently called 3D ghosting. This undesired effect occurs when portions of the image intended to be seen by one eye become visible to the other eye. This ‘leakage’ of information between the right and left visual channels may occur with virtually any 3D display technology, but certain display/projection technologies are more prone to have a level of 3D crosstalk that rises to the point of being objectionable for most viewers. For this initial blog (i.e., Part 1) on the subject of 3D crosstalk, I will discuss the principle sources for 3D crosstalk for both active 3D and passive 3D projection system and in Part 2 (i.e., my next blog) I will provide, as an example, results from testing 3D crosstalk on my own JVC DLA-RS40 projector. Read the rest of this entry »
For this blog I will be discussing a new front projection screen material being marketed specifically for use with 3D projectors. I will taking a look at the new Stewart Filmscreen Relections Active 170TM screen material with a rated gain of 1.7. Screens using this material are being sold for use with 3D projectors that use active shutter 3D glasses. Stewart also offers a screen material called 5D (more on that in a future blog) that is marketed for use with passive 3D projection systems. This blog reports on testing of sample of the screen material (actually a less than 1 square foot sample and not an entire screen). For reference a sample of Stewart’s well regarded StudioTek 100TM screen material (gain 1.0) was used. Read the rest of this entry »
This blog discusses the use of Liquid Crystal Display (LCD) projection technology for 3D. This is the oldest of the micro-display technologies with the basic idea dating back to 1968 with the first commercial projectors appearing about 2 decades ago. However, it has only been about a decade since micro-display projectors started to gain a solid market position against the long dominate CRT based projectors for video/home theater applications. Read the rest of this entry »
This blog is a continuation of my previous blog. These discussions focus on factors that need to be considered when selecting a projection screen for use in a home theater with a 3D projector. While many of the screen characteristics equally apply to selecting a screen for regular 2D projection, there are some factors that are either more important when it comes to 3D or apply only for the case of 3D. Read the rest of this entry »
For this blog I will be discussing 3D active shutter glasses.
As touched upon in earlier blogs, there are basically two general categories of glasses used for viewing 3D video. The simplest form is “passive” which use left and right lenses that either have a different fixed polarization or pass different portions of the light spectrum (e.g., different colors). Most consumer 3D TVs and 3D projectors require the use of the more complex “active” shutter 3D glasses and this latter category is the subject of the discussion below. Read the rest of this entry »