Light Touch™ is an interactive projector that instantly transforms any flat surface into
a touch screen. It projects a full-colour image down onto any flat surface and turns it
into a virtual touch-screen.
Light Touch™ is an application platform with onboard processor, running Microsoft
WinCE 6 R3 operating system. It supports applications written in Adobe Flash Lite 3.1
or Microsoft .NET CF 3.5. Light Touch has wireless networking capability and is ideally
suited to running applications that connect to the internet or cloud-based servers.
Light Touch models from the LT1221 series, are supplied in a plastic outer shell,
designed for standalone operation.
Caution - use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure
This laser product is certified as a CLASS 2 laser product to the requirements
of the US Federal Product Performance Standard for Laser Products
contained in the regulations in 21 CFR Subchapter J except for specific
deviations described in FDA Laser Notice #50.
This machine incorporates embedded, Class 3B and 4 lasers which are
capable of producing hazardous levels of laser radiation. However, this
product incorporates a protective housing and controls in its design such that
there is no exposure or human access to levels of laser radiation above Class
2.
Tested to IEC 60825-1:2007
447nm wavelength, 0.16mW maximum power, 200uSec pulse duration
532nm wavelength, 0.26mW maximum power, 200uSec pulse duration
637nm wavelength, 0.26mW maximum power, 200uSec pulse duration
780nm wavelength, 0.14mW maximum power, 16.6mSec (Class 1)
CLASS 2 – DO NOT STARE INTO THE BEAM
AS WITH ANY PRODUCT CONTAINING LASERS, DO NOT DISASSEMBLE
THE PROJECTOR FOR ANY REASON. DISSASSEMBLING THE PROJECTOR
MAY RESULT IN HAZARDOUS LASER RADIATION EXPOSURE.
UNDER NO CIRCUMSTANCE SHALL ATTEMPTS BE MADE TO OPERATE
THIS DEVICE WHEN IT IS DAMAGED OR DISASSEMBLED.
Return it to the manufacturer for repair or replacement.All service to the
product shall be performed by Light Blue Optics Ltd., their authorised agents, or
personnel trained by Light Blue Optics Ltd.
• This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including
• This equipment complies with FCC radiation exposure limits set forth for an
• Changes or modifications not expressly approved by the party responsible for
interference that may cause undesired operation.
uncontrolled environment. End users must follow the specific operating
instructions for satisfying RF exposure compliance. This transmitter must not
be co-located or operating in conjunction with any other antenna or
transmitter.
compliance could void the user's authority to operate the equipment
Cowley Road, Cambridge. CB4 0WS U.K.
Comply with part 15 of the FCC rules
Light Blue Optics declares that the equipment described in this
document is in conformance with the Requirements of the European
Council Directive listed below:
2006/95/EC Low Voltage Directive
2004/108/EC EMC Directive
This product follows the provisions of the European Directive 1999/5/EC.
Dette produkt er i overensstemmelse med det europæiske direktiv 1999/5/EC.
Dit product is in navolging van de bepalingen van Europees Directief 1999/5/EC.
Tämä tuote noudattaa EU-direktiivin 1999/5/EC määräyksiä.
Ce produit est conforme aux exigences de la Directive Européenne 1999/5/EC.
Dieses Produkt entspricht den Bestimmungen der Europäischen Richtlinie
1999/5/EC.
Þessi vara stenst reglugerð Evrópska Efnahags Bandalagsins númer 1999/5/EC.
Questo prodotto è conforme alla Direttiva Europea 1999/5/EC.
Dette produktet er i henhold til bestemmelsene i det europeiske direktivet
1999/5/EC.
Este produto cumpre com as normas da Diretiva Européia 1999/5/EC.
Este producto cumple con las normas del Directivo Europeo 1999/5/EC.
Denna produkt har tillverkats i enlighet med EG-direktiv 1999/5/EC.
This declaration is based upon compliance of the product to the following
standards:
EN 55022:2006 (CISPR 22 Class B) RF Emissions Control.
EN 55024:1998 +A1:2001 +A2:2003 Immunity to Electromagnetic Disturbance.
EN 60950-1 Second Edition Information Technology Equipment- Safety-Part 1:
General Requirements.
Light Blue Optics products with the Waste Electrical and Electronic
Equipment Directive (WEEE) label, shown below, can be shipped back to
Light Blue Optics for proper disposal of hazardous components. Please
contact Light Blue Optics Technical Support for the proper procedure.
The Light Touch unit has a WLAN capability.
The unit supports 802.11 b/g (Channels 1-11).
FCC ID:
The equipment complies with the RF Exposure Requirement
1999/519/EC, Council Recommendation of 12 July 1999 on the limitation
of exposure of the general public to electromagnetic fields (0–300 GHz).
This equipment meets the following conformance standards:
EN 300 328, EN 301 489-17, EN 301 511, EN 301 908, EN 50385
This wireless device complies with the R&TTE Directive.
"Under Industry Canada regulations, this radio transmitter may only
operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce potential
radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that necessary for successful communication."
"This device complies with Industry Canada licence-exempt RSS
standard(s). Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation
of the device."
“This device complies with Industry Canada's RF radiation exposure limits
for general population. It must be installed to provide a separation
distance of at least 20 cm from all persons and must not be collocated or
operated in conjunction with any other antenna or transmitter.”
French
"Conformément à la réglementation d'Industrie Canada, le présent
émetteur radio peut fonctionner avec une antenne d'un type et d'un gain
maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada.
Dans le but de réduire les risques de brouillage radioélectrique à
l'intention des autres utilisateurs, il faut choisir le type d'antenne et son
gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne
dépasse pas l'intensité nécessaire à l'établissement d'une communication
satisfaisante."
"Le présent appareil est conforme aux CNR d'Industrie Canada
applicables aux appareils radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas
produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement."
“Cet appareil est conforme aux limites d'Industrie Canada concernant
l'exposition de la population générale aux radiofréquences. Il doit être
installé de façon à laisser une distance de séparation d'au moins 20 cm
de toute personne et ne doit pas être colocalisés ou exploité en
conjonction avec toute autre antenne ou transmetteur.”
Place the unit on a flat, level surface. For uniform results, a matte white
surface is recommended.
3. Press the button on top of the unit
This will turn on the unit. A blue logo will be projected for a few seconds
whilst the software loads. Light Touch™ will display a carousel menu which
provides access to a selection of preloaded demonstration applications.
4. Touch the projected image to interact
The menu can be navigated by touching the projected image with a finger
and using standard actions such as swipe and click. A touch is registered
when the finger lifts up from the projection surface, and not when the finger is
pressed down.
Demonstration Applications
The Light Touch LT1221 unit comes preloaded with a number of
demonstration applications, which can be accessed via the carousel. A
category can be selected by a single “click” on any visible icon.
Figure 2 – Screenshot of carousel menu
The pre-loaded applications are provided for demonstration purposes
only. Please contact Light Blue Optics for further information if required,
including enquiries about obtaining permission to use part or all of one of
these applications in a commercial product.
For information on creating applications for Light Touch, see the separate
document entitled: ‘Light Touch Application Guide’.
The ‘Power Management’ control panel can be accessed from within the
‘Settings’ category:
Figure 6 – Screenshot of ‘Power Management’ icon within ‘Settings’ menu
The ‘Power Management’ control panel allows the user to put Light Touch
into a ‘display-off’ mode after a period of inactivity. To activate this mode, the
‘Display Off Time’ needs to be set to a value greater than 0. There are
separate settings for when the unit is running from the power adaptor (called
‘AC mode’) and from the internal battery. Use the arrows to access the other
power management settings.
Figure 7 – Screenshot of power management control panel
In the top right corner of the screen, the power source status is displayed;
either ‘AC Online’ or ‘Battery’ with the current battery charge level. Touching
the value (shown here as ‘0’) brings up a virtual keyboard so that the value
can be changed.
Light Touch has inbuilt wireless networking support for 802.11 b/g. The
following encryption standards are supported:
• WEP
• WPA
• WPA2 – TKIP
• WPA2 – AES
The wireless networking control panel can be accessed from within the
‘Settings’ category:
Figure 9 – Screenshot of ‘Wireless Networking’ icon within ‘Settings’ menu
The main screen within the wireless networking control panel is shown below:
Figure 10 – Screenshot of wireless networking control panel
To connect to one of the networks displayed in the list, select the network by
touching the name, then press ‘Connect’. If the network requires a security
code then this will cause a virtual keyboard to be displayed and the code
should be entered.
The virtual keyboard can switch between three screens by pressing the mode
key (marked as *%123) in the image below. When the code has been entered,
press the green arrow button to connect.
Figure 11 – Screenshot of entering network access code
At the main screen of the wireless networking control panel, the status of the
connection will be displayed. Pressing the ‘Test’ button with cause the
application to actively test the wireless network connection. If successful, the
following screen will be shown. If unsuccessful, a similar screen will say that
you are not connected to the internet.
Figure 12 – Screenshot of networking control panel showing network test
Light Touch can also connect to wireless networks that don’t broadcast their
SSIDs. To connect to a network with a hidden SSID, select ‘Other’ from the list
of available networks and press ‘Connect’.
Light Touch can be connected to a host machine via a USB cable that plugs
into the USB Micro-B port. The USB Mode control panel can be accessed from
the ‘Settings’ menu:
Figure 14 – Screenshot of ‘USB Mode’ icon within ‘Settings’ menu
The default USB mode is ‘ActiveSync’ mode, which allows Light Touch to be
controlled from a Microsoft Windows PC. Further details are available in the
separate ‘Application Guide’ document.
In order to connect using USB ActiveSync mode, a device driver is needed for
the host PC. Instruction relating to the installation and use of these drivers is
contained in the appendices of this document.
Light Touch also supports ‘USB Mass Storage’ mode, which allows Light
Touch to appear as an external drive to a host PC or Mac.
Mass storage mode supports a higher transfer rate and the ability to connect
without using a device driver. However, whilst Light Touch is connected as a
mass storage device, it cannot access its own file system.
The main screen of the USB Mode control panel allows the connection type to
be selected as shown below.
There are two different mass storage modes because Light Touch contains
two separate memories that are accessible to the user. The ‘internal’ Flash
memory has a capacity of 4GB and is present at all times. The ‘micro-SD’
Flash memory is an optional memory card that may be fitted into the device
via the external micro-SD card slot.
If mass-storage (micro-SD) mode is selected, the user will first be prompted
to make sure that a micro-SD card is inserted.
1
Figure 16 – Screenshot of prompt to check micro-SD card inserted
When Light Touch is put into mass storage mode, the following screen will be
displayed for the duration of the transaction.
Figure 17 – Screenshot of mass storage mode message
When a USB cable is connected, the appropriate memory within Light Touch
will appear as a network drive on the host machine. Once any file transfers
have completed, Light Touch should be restarted using the power button. On
power-up, Light Touch will return to ‘ActiveSync’ mode.
1
Note that the external micro-SD card slot is only accessible by removing the back
panel of the outer plastic cover. To remove the cover, first remove the screw at the
bottom of the back panel and then lift off the panel, starting from the bottom.
The Light Touch LT1221 Series is designed to be an application platform that
users can create their own content for. The system is designed to enable
users to create applications using either one of two popular software
platforms:
•
Adobe Flash Lite 3.1 – the Adobe Flash development toolset is currently
used by over 1,000,000 developers. A wide range of visually-rich, interactive
applications can be developed quickly and easily without the need for
complex coding. As such, this method of creating applications is accessible
to a wider range of content developers such as graphic designers and
artists. Flash Lite 3.1 can also be used for the development of complex
applications due to its support for ActionScript 2.0 code.
•
Microsoft .NET Compact Framework 3.5 – this powerful development
environment gives developers maximum control over the system at the
expense of more complex code development. Standard tools such as
Microsoft Visual Studio can be used to create applications and the
developer can get low-level access to system peripherals which would not
be accessible via Flash Lite 3.1
The Light Touch LT1221 Series runs Microsoft WinCE 6.0 R3 as the operating
system and includes all of the files needed to run applications written in both
Flash Lite 3.1 and .NET Compact Framework 3.5.
Connecting to the Unit
Light Touch can be connected to a host computer via USB. The USB
connection can be run in two modes: USB mass storage mode (i.e. providing
drag-and-drop file transfer support, or ActiveSync mode (i.e. providing file
transfer and debug capabilities for Windows PCs). Information on how to set
the USB mode is provided in the ‘Light Touch Settings -> USB Mode
of this document.
’ section
For USB ActiveSync mode, the recommended method of connecting to the
Light Touch from a PC is slightly different depending on which operating
system the PC is running:
For Windows XP:
•
Ensure that the host PC has Microsoft ActiveSync software installed
http://www.microsoft.com/windowsmobile/enus/downloads/microsoft/activesync-download.mspx . With the Windows XP
operating system, it is recommended to use ActiveSync version 4.5
•
Plug in the power to the Light Touch and turn the unit on
•
Connect the Light Touch unit to a PC via the USB cable. The required USB
cable is: Micro-USB (Type B) to Full Size USB (Type A).
Follow the step-by-step instructions as shown in Appendix A.
For Windows 7 or Vista:
•
Plug in the power to the Light Touch and turn the unit on
•
Connect the Light Touch unit to a PC via the USB cable. The required USB
cable is: Micro-USB (Type B) to Full Size USB (Type A).
•
Follow the step-by-step instructions as shown in Appendix B.
Internal File Structure
The internal file structure of the Light Touch LT1221 Series is shown in Figure
18. The file ‘Menu.swf’ is the application that is run on start-up unless user
generated applications are present. This launches the ‘Application Launcher
Carousel’, which is effectively a dynamic, data-driven menu system. The
contents of the menu system is defined using a number of XML files, with
‘main.xml’ being the principal one, which references other category-specific
files such as ‘videos.xml’.
Figure 18 – File Structure of the LT1221 Series
The contents of this directory are supplied on the CD that comes with the
Light Touch so that the user has a backup. They are located in:
The Light Touch can be configured to use different applications on start-up.
On power-up, the system will load the operating system and then
automatically search for a number of pre-defined applications in memory. The
following list shows the name, location and priority order of files that are
searched for by the system on start-up:
1. "\\storage card\\startup.exe
2. "\\storage card\\startup.swf
3. "\\internalflash\\startup\\startup.exe
4. "\\internalflash\\startup\\startup.swf
5. "\\internalflash\\menu.swf
"
" (*See Note A)
"
"
"
Notes
A. The ‘\\storage card\\startup.swf’ path is only supported by Light
Touch software versions 3.8.0 and higher (from May 2011)
B. The ‘storage card’ location refers to the microSD card, which is located
on the rear side of the Light Touch device. For the LT1221 Series, access
to the card slot requires removal of the rear plastic cover, by removing
two screws.
Therefore, if all of these files are present in the file system, the first one in the
list is the application that will be run. If none of these files exists, the system
will pause and wait until one does exist.
This system means that it is straightforward to reconfigure the system to load
a user-generated application rather than the pre-loaded Flash Lite
demonstration applications. When the unit is delivered, the ‘startup’ subdirectory will be present within the ‘InternalFlash’ directory, but it will not
contain any files. Therefore, the system will load ‘menu.swf’ on power-up until
the user uploads either ‘startup.exe’ or ‘startup.swf’ into the ‘startup’ subdirectory or onto the microSD card.
Tip:
When developing and testing new applications on a Light Touch unit, the
following procedure is recommended:
1. Place the new application in one of the following two locations whilst
testing:
a. In a new directory in the InternalFlash folder and edit one of the
.xml files (e.g. work.xml) to create a launch icon for the
application in one of the menus or sub-menus, or
b. Put the application on a microSD card and insert it into the Light
Touch
2. Once the application has been fully tested and is known to work
correctly, it can be run from the startup folder.
The recommended tool for Application development is Flash Creative Studio
4 or later. It should be set to ActionScript 2 only, as Flash Lite 3.1 is not
compatible with ActionScript 3. The screen size should be set to 848 x 480
and touch interactions are equivalent to mouse clicks.
Applications created using Flash Lite 3.1 can communicate to system-level
components via API calls. Examples of such components include the LBO
virtual keyboard and audio volume levels. A document describing the API
components and how to use them is available on request from LBO.
For further information and suggestions of good design practice, please refer
to the Light Touch Design Guidelines document, which is available on request
from LBO.
Creating Applications in Microsoft .NET Compact Framework 3.5
Microsoft’s .NET Compact Framework is a version of the .NET framework
designed to run on mobile devices. Included on the Light Touch unit is .NET
compact Framework 3.5. The framework uses some of the same libraries
available in the full .NET framework and also includes some specifically
designed for mobile devices.
MSDN has further details on the Compact Framework:
The recommended tool for application development is Microsoft Visual Studio
2008. The screen size should be set to 848 x 480 and touch interactions are
equivalent to mouse clicks.
For further information and suggestions of good design practice, please refer
to the Light Touch Design Guidelines document, which is available on request
from LBO.
A white screen is displayed or a
message box appears and the
unit becomes unresponsive
Colours are not aligned Light Touch includes an automatic colour-plane
1) The internal battery may need to be recharged.
2) Ensure the power is connected before pressing
the on button.
3) If a USB cable is connected, remove it and retry.
1) Check that the clear plastic shipping labels have
been removed from the front surfaces of the
projector
2) Check the projector is absolutely level on the
projection surface. If the surface is uneven, or
contains obstacles, this can interfere with the
touch system.
3) Check that no lighting source with a high infra-
red content is near the projector.
4) Ensure Light Touch is not too close to another
Light Touch unit, as this can cause interference
with the touch system.
5) Lift the unit and check that the micro-switch is
free on the bottom and can be depressed.
Replace the unit and recheck.
6) If touch is still not functioning, turn the unit off
and restart.
1) Reconnect the USB cable. Wait for ActiveSync
to attempt connection before trying again.
2) Turn off and then restart the unit and attempt
to reconnect
3) If this does not work, restart the PC.
Turn off and restart the unit.
alignment facility. If the unit is very cold on start-up,
colours may be misaligned. Allow the unit to run
and warm up for 5 minutes, then turn-off and
restart.
Table 1 – List of potential problems and respective solutions
Support Desk
If you should require support with your Light Touch product, please contact
the support desk at Light Blue Optics at: support@lightblueoptics.com
The LBO support team will endeavour to respond to your enquiry within 2
working days
1) Connect Light Touch™ to mains power, turn it on and connect to a host PC
via a USB cable. The PC will auto-detect the presence of the unit and
launch the following dialogue window as shown in Figure 19.
Figure 19 - Hardware Update Wizard (Step 1)
2) Select the option ‘No, not this time’ and click ‘Next’. A second dialogue
window will appear, as shown in Figure 20.
8. Select Microsoft (1) in the Manufacturer column. The Model column will
now populate. Select Microsoft USB Sync (Microsoft Corporation) (2).
When the driver is loading a warning message will be displayed. Click Yes.
The driver will now install and may take a few minutes to complete.
12. Select the Driver tab. The window below will appear showing the driver
version of 6.1.6965.0
Driver Version
13. Power off the Light Touch. Restart your computer. Once your computer
has rebooted power the Light Touch on. The Light Touch will begin to
sync with Windows Mobile. Windows Mobile will display that the device
has properly connected and can now be accessed.
Resolution 848 x 480 pixels (WVGA)
Brightness Dependent on content type:
18 Lumens for typical video content
35 Lumens for typical user-interface content
Projected Image Size 9.8” diagonal
Laser Safety Classification Class 2 according to IEC 60825-1:2007
I/O Connectors USB Device (Micro Type B Connector)
Micro SDHC card (Push-push socket)
Operating System Microsoft WinCE 6 R3 (Core and Pro versions available)
Application Software Adobe Flash Lite 3.1
Microsoft .NET Compact Framework 3.5
Memory System memory: 128MB RAM, 256MB flash ROM
Bluetooth v2.1 available for evaluation
Audio Integrated mono speaker
3.5mm stereo headphone socket
Touch Sensor Finger-activated touch sensor, providing single-touch detection over
the full projected image.
Proximity Sensor Detects the presence of a hand in area above the projected image.
Can be used to trigger a ‘system wake-up’ event
Power Input 5V (+/- 0.5V) DC input socket (manufacturer CUI, part number PJ-
028-03)
Battery Type Internal Li-Ion rechargable
Battery Capacity 3600 mAh
Typical Operation Time2 hours (from battery)
Battery Charging 5V DC Power Adaptor (Normal Charge and Continuous Operation)
Micro-USB (Trickle Charge)
Weight 825g
Dimensions 137 x 41 x 193 mm
Operating Temperature +5 to +35 °C
Storage Temperature -20 to +60 °C
Lifetime (MTTF) 10,000 hrs