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Frequently Asked Questions (with answers)

The InFocus^®DepthQ^® 3D Video Projector:

Lamp:

Applications:

Miscellaneous Questions:

The InFocus^®DepthQ^® Projector:

Q: What is the InFocus^®DepthQ^® 3D video projector?

A: The InFocus^®DepthQ^® 3D video projector is a revolutionary lightweight single lens video projector capable of achieving true output frame rates of 120Hz. When used with a stereoscopic 3D image source and liquid crystal "3D" shutter glasses, InFocus^®DepthQ^® will provide a rock solid stereo 3D experience.

Q: Why are active LCD shutter glasses required?

A: Active LCD shutter glasses are used to create the stereo effect. The InFocus^®DepthQ^® 3D video projector displays an interleaved stream of left and right images at 120 frames per second. The glasses are synchronized with this stream and block images so that the right eye only sees the right image and the left eye only sees the left.

Liquid crystal eyewear is generally wirelessly controlled via an infrared emitter that connects to a 3-pin DIN connector on the computer’s graphics card (stereo ready cards).

Shutter glasses are a complex subject. We will add more details concerning both glasses and graphic card requirements in the next month.

Q: Are LCD shutter glasses and an infra-red emitter included?

A: No. Liquid crystal eyewear and emitters are available from several manufacturers in a variety of configurations and price points, and must be purchased separately.

Q: What display technology is InFocus^®DepthQ^® based on?

A: InFocus^®DepthQ^® uses the latest Texas Instruments Digital Light Processing^® technology and provides a stunning 2000:1 contrast ratio. DLP^® is the world’s only all-digital display solution. DLP^® is based on a unique, fast, digital, reflective semiconductor called the Digital Micromirror Device, or DMD.

Q: What is special about the InFocus^®DepthQ^® 3D video projector?

A: The new InFocus^®DepthQ^® 3D video projector is based on an existing InFocus projector engine, which has been used in literally hundreds of thousands of projectors. At Lightspeed’s direction, this engine has been customized to support stereoscopic visualization requirements, particularly frame synchronous output and refresh rates of 100 - 120Hz. The result is flicker-free 3D imagery from a single lens projector.

Most projected stereo 3D requires two separate projectors that are stacked and must be aligned by a skilled technician. Because InFocus^®DepthQ^® is a single projector solution, stereo 3D is very simple for any user.

Q: What stereo 3D format does the InFocus^®DepthQ^® 3D video projector support?

A: InFocus^®DepthQ^® only accepts 3D data in VESA VGA, page flip, stereo 3D format. The projector creates a one-frame delay, which flips the stereo image. This flip is easily compensated for with an eye switch in the glass emitter or in the OpenGL software driver. InFocus^®DepthQ^® is then used in conjunction with liquid crystal shutter eyewear to create the stereo 3D effect.

Q: Can InFocus^®DepthQ^® operate in normal 2D mode?

A: Yes. All functions and inputs are operational.

Q: What is the InFocus^®DepthQ^® 3D video projector’s resolution?

A: The projection chip has a native resolution of 800x600. The InFocus^®DepthQ^® 3D video projector also supports a mapped 1024x768 desktop at 100 - 120 Hz.

Q: I saw your display at a trade show. What did you do to make 800x600 look so good?

A: No sleight of hand was involved. Aside from the fact that DLP^® projections are gorgeous in and of themselves, the real answer is that you instinctively viewed our display from within the appropriate viewing range (which actually begins much closer to the image than you might think). So as much as we would like to take all the credit for it, it's really Nature who has provided the magic. It’s called acuity – the level of detail perceptible at a distance.

Based on the size and density of cones in the fovea centralis (the highest resolution area of the retina), the smallest resolvable detail humans with 20/20 vision can generally see under optimal conditions is contained within approximately 1 arc-minute of angle, or 1/60^th of one degree. Any details smaller than that simply blend together. Think of it as biological anti-aliasing.

In other words, picture quality is not determined by resolution alone, for when viewed from the appropriate distance, no individual pixels will be perceived at all.

From this data, a little trigonometry provides us with a simple rule of thumb: The viewing distance at which we maximize natural blending without any perceived loss of resolution = Pixel Width / .0003. This equates to 1 meter of distance for every .3 millimeters of pixel offset (pitch); and this is true for any picture-element-based display (including printing). Beyond this distance we actually begin to throw away display resolution.

Of course, in practice human acuity varies widely from this theoretical high mark, especially in the darker environments in which we tend to watch projected images (acuity decreases as pupil diameter increases). Subsequently, at the other end of the spectrum we have observed that pixels begin to adequately blend approximately 1.5 times the screen width away from the InFocus^®DepthQ^®.

These two distance calculations provide us with our minimum and maximum recommended viewing distances, based on display width.

Q: What viewing distances do you recommend?

A: (Please reference the above FAQ Q&A for an explanation of how we arrived at these numbers.)

Lightspeed Recommended Viewing Ranges for the InFocus^®DepthQ^® Stereoscopic Video Projector

Display Width (feet)	2'	3'	4'	5'	6'	7'	8'	9'	10'
Optimal Viewing Range	3' to 8'4"	4.5' to 12.5'	6' to 16'8"	7.5' to 20'10"	9' to 25'	10.5' to 29'2"	12' to 33'4"	13.5' to 37.5'	15' to 41'8"

Display Width (meters)	0.75m	1m	1.5m	1.75m	2m	2.25m	2.5m	2.75m	3m
Optimal Viewing Range	1.1 to 3.1m	1.5 to 4.2m	2.25 to 6.25m	2.6 to 7.3m	3 to 8.3m	3.4 to 9.4 m	3.75 to 10.4m	4.1 to 11.5m	4.5 to 12.5m

Q: Does InFocus^®DepthQ^® have an onboard stereo DIN-3 connector?

A: No. The projector does not have a DIN connector. The computer or image generator must supply the 3D glass synchronization DIN-3 connector.

Q: Are there any special requirements for the projection screen?

A: No. While the best results will be obtained using an actual projection screen, any light-colored surface can act as your screen in a pinch - even an ordinary wall.

However, if your ambient light levels are expected to be high, we do recommend that your screen have a gain of at least 2, or you consider using a rear-projection screen, as pictured below.





The InFocus^®DepthQ^® 3D Video Projector in action under extremely high ambient light (tradeshow lighting).

Q: How much does the InFocus^®DepthQ^® 3D Video Projector cost?

A: Please call 1.206.784.1385 for pricing.

Q: What is the Warranty period?

A: Limited warranty periods are as follows:

Projector Limited Warranty Period (Excluding Lamps): Thirteen (13) months from date of product shipment.

Lamp Limited Warranty Periods: The original installed lamp shall have a 90-day or 500 hour (whichever comes first) Limited Warranty from date of shipment. Replacement lamps will have a 90-day or 500 hour (whichever comes first) Limited Warranty from date of lamp proof of purchase.

Q: Can I purchase an extended Warranty?

A: Yes. After-purchase extended warranties for both the projector and the lamp are available directly from the InFocus website:

Projector - One Year Service Protection Plan $199.00
Lamp - One Year Lamp Warranty $79.00

Q: What are the shipping dimensions, and how much does it weigh?

A: InFocus^®DepthQ^® 3D Video Projector:

- Shipping Dimensions: 12.5"H x 14.5"W x 19"D (Centimeters 31.8H x 36.8W x 48.3D)
- Shipping Weight: 11.45 LB (5.19 Kilograms)

Q: How much will shipping cost?
A: The following rates are approximate shipping costs and are for example only. Actual rate will vary based on final shipping destination. Rates apply only to projectors and do not include glasses.

Standard USA domestic order, 2-5 business days ARO,(UPS Ground) $25.00

Please contact us for an international freight quote

Q: Where can I get accessories?

A: A large variety of accessories are available online directly from the InFocus Store.
For your convenience, here is a list of some of the most popular items.

MISCELLANEOUS
Digital Computer Cable SP-DVI-D $39.00
PC Guardian Projector Cable Lock SP-LOCK-B $52.00
Ceiling Mount Kit SP-CEIL-011 $174.00
Replacement Lamp SP-LAMP-018 $299.00

CASES
Cable Management Case: Meeting Room CA-SOFTCASE-02 $29.00
Transport Case: Meeting Room CA-BRIEFCASE-02 $49.00
Traveler Case: Meeting Room CA-ROLLER-02 $109.00
InFocus Rolling Travel Case CA-C141 $225.00
ATA Shipping Case: Meeting Room CA-ATA-MTG $429.00

REMOTES
Presenter Remote HW-PRESENTER $59.00
Conductor Plus Remote HW-CONDUCTOR+ $79.00
Presenter RF Remote HW-PRESENTER-RF $99.00

Lamp:

Q: Is there anything special about the InFocus^®DepthQ^® lamp?

A: No, it is a standard InFocus lamp. But with a maximum output of 1600 lumens, InFocus^®DepthQ^® delivers superior brightness at work or anywhere else.

Q: How many hours of operation can I expect to get before replacing the lamp?

A: The long-life lamp can shine for an incredible 4000 hours.

Actual lamp life will vary based on operating modes and ambient environment. Conditions that affect lamp life include temperature, altitude and rapidly switching the projector on and off.

Q: What is the Warranty period?

A: Lamp Limited Warranty Periods: The original installed lamp shall have a 90-day or 500 hour (whichever comes first) Limited Warranty from date of shipment. Replacement lamps will have a 90-day or 500 hour (whichever comes first) Limited Warranty from date of lamp proof of purchase.

Q: Can I purchase an extended Warranty?

A: Yes. An after-purchase one year extended warranty for the lamp is available directly from the InFocus website:

One Year Lamp Warranty $79.00

Q: Where can I get a new lamp?

A: Lamps can be purchased directly from Lightspeed or from the InFocus website:

SP-LAMP-018 Replacement Lamp $299.00.

Applications:

Q: What is stereo 3D Visualization?

A: Stereo 3D/VR (virtual reality) is the process of interacting with a computer simulation in a three-dimensional virtual world. These worlds can be as realistic as an aircraft interior or as abstract as a protein molecule. In principal, any true 3D computer world, for example 3D games, can be transformed into a stereoscopic 3D image.

Q: What makes stereoscopic visualization so valuable?

A: The public's longstanding attraction to stereo 3D is undeniable. There is an inherent excitement that surrounds a 3D presentation. Additionally, scientific studies have proven conclusively that viewing in 3D results in deeper impressions, better retention of information, and a more memorable experience.

For a more in-depth examination of this process look here.

Q: What markets currently use stereo 3D Visualization?

A:

Government and Defense: Aerospace/Military Digital Battlespace NASA GIS/Geographic Information Systems	Resource Management: Oil Exploration/Extraction Mining Timber/Habitat Management Subsurface 3D Seismic
Life Sciences: Pharmaceutical Research Molecular Modeling Medical Devices Surgical Planning/Stereo Microscopy Human Modeling (3D ultrasound)	Manufacturing CAD/CAM: Virtual prototyping Automotive/Truck/Heavy Equipment Aerospace/Commercial Architectural/Engineering/Construction Consumer Products
Education and Entertainment: University Research Location Based Entertainment Museum Attractions 3D Video Games	Training: Law Enforcement/Weapons training Hazardous Material Removal Military Tactics Flight Simulators

Q: What software applications support stereoscopic visualization?

A: There is a growing range of programs available for stereo 3D visualization. Here are some example applications.

Type	Product	Company
CAD/CAM/CAE	CATIA V5R13	Dassault Systemes
CAD/CAM/CAE	SolidWorks	SolidWorks Corporation
CAD/CAM/CAE	UGS Teamcenter Visualization Mockup	UGS PLM Solutions
GIS / OIL & GAS	Erdas Imagine	Leica Geosystems
GIS / OIL & GAS	Landmark Software	Landmark
ArcGIS / Direct Data QA & 3D Feature Digitizing	PurVIEW	I.S.M. International Systemap Corporation
Molecular Imaging	Discovery Studio® ViewerPro	Accelrys
Software Development	Open Inventor	TGS
Visualization / VR	Amira	TGS
Visualization / VR	EON Studio 4.0	EON Reality Inc
Visualization / VR	Opus Realizer Opus Studio	Opticore
Visualization / VR	Rtre Plugin 3ds max/VIZ	Cubispace
VRML / VR Viewer	Cortona VRML Client 4.2	Parallel Graphics
3D Games	Direct3D OpenGL games	Nvidia Stereo Driver
Universal Drivers	more3DSTEREO	more3D GmbH
Universal Drivers	NVIDIA Consumer Driver	NVIDIA Corporation

Q: How do I enable stereo output in SolidWorks?

A: How to download the SolidWorks stereo driver:

Q: Does Pro-E support stereo output?

A: No, not at this time.

Q: Can I play stereo movies, videos, or pre-rendered visualizations on InFocus^®DepthQ^®?

A: Yes. Movies that have been filmed using two cameras or pre-rendered computer graphic animations can be played back on InFocus^®DepthQ^®. Please see our DepthQ Server^® product page for details.

Q: Can I play video games in stereo 3D?

A: Yes. Many PC video games, for example “Need For Speed” can be played in stereo 3D. The stereo 3D is turned on via a specialized game driver available from NVIDIA.
To download the NVIDIA 3D stereo Driver:

Miscellaneous Questions:

Q: Why can't I use any standard video projector?

A: Standard video projector output engines are internally limited to 60 Hz refresh rates and most do not synchronize to the incoming signal. At 60 Hz 3D images flicker unacceptably.

Q: Will InFocus^®DepthQ^® turn my 2D content into stereoscopic 3D?

A: No. The projector cannot change 2D into 3D. The projector must be driven with an application that can playback or create true 3D stereoscopic images.

Q: Is InFocus^®DepthQ^® easy to setup and use?

A: InFocus^®DepthQ^® is designed for easy setup and use. Hookups are simple with color-coded connections. Get started right away with intuitive keypads and menus that deliver one touch operation, so there’s no need to refer to the user manual for common tasks. For 3D viewing just plug in the 3D emitter and put on your 3D glasses. It’s even easy to carry: at a mere 6.8 lbs/ 3.1 kg, InFocus^®DepthQ^® is super-portable.

Q: Does InFocus^®DepthQ^® support 3D composite video data from a standard DVD or VHS player?

A: No.
Q: Can I invert the projected image?

A: Yes. InFocus^®DepthQ^® can be used in any standard projection mode: front, rear, and ceiling mount. A simple menu control allows the user to flip the projected image appropriately. (Rear projection additionally requires the user to switch the L/R signal in either the glass emitter or in the OpenGL software driver.)

Q: What power modes does InFocus^®DepthQ^® support?

A: InFocus^®DepthQ^® has an auto-switching power supply and 100V – 240V at 50 –- 60 Hz.

Q: What companies were behind the development of the InFocus^®DepthQ^® projector?

A: InFocus^® Corporation and Lightspeed Design Group

InFocus^® Corporation (Nasdaq: INFS) has been innovating and developing new ways for people to share big pictures and ideas in business, education and home entertainment for almost twenty years. Beginning with our worldwide leadership in digital projectors, today our expertise extends beyond projection into large format displays, ultra-thin microdisplay televisions, wireless connectivity, networking software and engine technology all designed to make the presentation of ideas, information, and entertainment an exhilarating experience. InFocus Corporation's global headquarters are located in Wilsonville, Oregon, USA, with regional offices in Europe and Asia.

Lightspeed Design Group has been a leader in stereo 3D for over a decade, developing new hardware and software technologies and presenting 3D to millions through museum theaters, corporate events, and a world exposition. Lightspeed has considerable expertise in 3D projection, software development, and electronics. Lightspeed's clients include Mercedes, U.S. Army, Continental Teves, Procter & Gamble, Nintendo, IMAX Corporation, and Disney Imagineering.

InFocus^®DepthQ^® is exclusively distributed by Lightspeed Design Group.


InFocus and Lightspeed reserve the right to alter product offerings and specifications at any time without notice.

InFocus is a registered trademark of InFocus Corporation or its subsidiaries in the United States and other countries. Digital Light Processing, DLP, and the DLP medallion are trademarks of Texas Instruments. DepthQ is a trademark of Lightspeed Design. All other trademarks are used with permission or are for identification purposes only and are the property of their respective companies. All rights reserved.

© Copyright 2008 Lightspeed Design Inc. All Rights Reserved.