When it comes to choosing a Home Theater Projector, we at Projector Reviews get to review more home theater projectors than just about anyone on the planet. We’ve reviewed hundreds over the last 15 years. We’re getting pretty good at helping you figure out which is the best home theater projector for your specific needs, and the lighting in your room.
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This blog is a continuation of my previous blog (HERE) of December 14, 2011 on â3D Crosstalk/Ghosting â Part 1â and also is a follow-up to my earlier blogs discussing screens for 3D projection (i.e., blogs from August 19th,Â August 31st, and December 1st.Â Â Â For the continuing discussion from my most recent blog on 3D Crosstalk, I have now completed measurements of the 3D crosstalk level from my JVC DLA-RS40 projector and for the further discussion on screens for 3D projection I have taken a quick look at sample âsilver screenâ materials from both Stewart and Da-lite that are being marketed for use with passive 3D projection systems, that use polarization for their 3D separation, as well as suitable to 2D projection.
For this Blog (and the next) I will focus on the subject of 3D crosstalk, or frequently called 3D ghosting.Â This undesired effect occurs when portions of the image intended to be seen by one eye become visible to the other eye.Â This âleakageâ 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.Â 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.
First Take on Stewart “Reflections Active 170″ Screen
December 1, 2011 -
For this blog I will be discussing a new front projection screen material being marketed specifically for use with 3D projectors.Â I will taking a look at the new Stewart Filmscreen Relections Active 170TM screen material with a rated gain of 1.7.Â Screens using this material are being sold for use with 3D projectors that use active shutter 3D glasses.Â 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.Â Â This blog reports on testing of sample of the screen material (actually a less than 1 square foot sample and not an entire screen).Â For reference a sample of Stewartâs well regarded StudioTek 100TM screen material (gain 1.0) was used.
BenQ W7000 Update & Discussion of Lens Shift, Offset, Zoom Ratio, etc.
November 16, 2011 -
This blog provides some additional information on the upcoming BenQ W7000 DLP 3D projector, as a follow-up to my previous blog on DLP projectors (HERE).Â This blog also discusses the characteristics and importance a projectorâs zoom ratio, throw ratio and lens shift adjustment.Â Â The upcoming BenQ W7000 looks particularly interesting in that it has an especially wide range (for a DLP projector) lens shift adjustment as well as 1.5x zoom ratio combined with a relatively high power 300 watt lamp.Â
This blog discusses the use of Liquid Crystal Display (LCD) projection technology for 3D.Â Â 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.Â 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.
This blog continues the discussion of DLP 3D projection technology.Â In my previous blog I provided a brief history of DLP projectors and an overview of the DLP technology.Â This 2nd blog on the subject continues with a summary of the current and soon-to-be-released DLP 3D projectors. Â I also provide some preliminary news about a upcoming 3D projector using a laser light engine.
This blog is the follow-up to my earlier blog from before the CEDIA show.Â That earlier blog was from August 31 and was titled âScreens for 3D Projection â Part 2â.Â This new blog will be my wrap up, for now, on projection screens for 3D, but Iâm certain there will addition future blogs that will cover the topic of screens.
This blog provides a preview of new projectors expected to be introduced at the annual “Custom Electronics Design and Installation Association” (CEDIA) Expo that runs from Â 7 – 10 September in Indianapolis. Â This is the trade show where most manufacturers of home theater oriented projectors, screens, high-end audio gear and home automation systems introduce/demo their new and upcoming products for the North American market. Â Several of us associated with Projector Reviews will be attending the CEDIA Expo and my next blog will report on what new projectors were being shown and provide impressions from some of the demos.
This blog is a continuation of my previous blog.Â 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.Â 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.
More on 3D Glasses and Part 1 on Projection Screens for 3D
August 19, 2011 -
For this Blog I am starting off with some additional info related to 3D active shutter glasses then I am begining (i.e., Part 1) a discussion on things to consider when selecting a screen for use with 3D projectors.
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.Â The simplest form is âpassiveâ 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).Â Most consumer 3D TVs and 3D projectors require the use of the more complex âactiveâ shutter 3D glasses and this latter category is the subject of the discussion below.
This is the second part of my blog on using LCoS 3D projection technology.Â We are currently talking about 3D projection using sequentially alternating right/left images and where viewers must wear active shutter 3D glasses.Â For this blog I will focus on the JVC D-ILA approach used for 3D.
For this blog I will focus on 3D projectors based on Liquid Crystal on Silicon (LCoS) technology for which the viewer must wear 3D active shutter glasses.Â As discussed in my previous blog, this type of 3D projector alternates the display of right and left images that are synchronized with the liquid crystal shutter lenses of the viewerâs 3D glasses such that the right eye only sees the stream of images intended for that eye (i.e., the right image stream) and the left eye only sees the left image stream.Â LCoS is one projection technology that can be used to create such a 3D projector.
Over the next several blogs I intend to get into more of the details of the 3D technologies now available for use by the consumer in a home theater.Â Â I specifically plan to cover the following 3D projection technologies and configurations:
This post is intended to provide a little history for 3D video and to also provide some context for my prior blog on the 3D signal formats that are defined by the HDMI version 1.4a specification and for Blu-ray 3DTM.Â I hope that it will also provide some context for future blogs and discussions related to 3D video.
As a little bit history, 3D using the anaglyphÂ technique has been used with television for decades.Â This technique requires the viewer to wear eyeglasses using colored lenses (e.g., one red and the other cyan) and this is an inexpensive method to display 3D content with any standard color TV or video projector.Â
Greetings to all existing and future home theater owners that have made the decision to use front projection at the means of achieving the cinema experience in their own home.Â For my first blog, as well as the next several here at Projector Reviews, I have decided to focus a little on the history and more on the technology for bringing 3D into the consumer home theater environment.Â Pete Connollyâs âThe Art of Gamingâ blog will cover 3D gaming while my focus will be on 3D for viewing movies and video programming.