Multi Touch’ed

Touched by Multi

VPS-Engineering.com Released!


Today I finished working on the beta version of VPS-Engineering, a site for my brother. Take a look at site and give me your opinion!


Multiple Webcam Calibration


Currently I’m thinking about an multiple camera calibration tool. The advantage of this would be that the size of screen could be increased without increasing the depth of the installation. I have some concrete ideas which I will try to integrate in the current touchlib library. I’ll post some schematics later this day, as I don’t have a scanner at my disposal right now.


Hitachi CPX5 XGA LCD Projector


CPX5

I choose for this projector because of its combination of cheap price and short image throwing distance. This ‘baby’ can draw an image od 100cm diagonaly at an throwing range of 1m, so with a bit of mirror work I will be able to display a large area in combination of an ‘limited’ height of the box.

These are the specifications:

Image Display

Projector Display System
0.63″ poly silicon TFT LCD x3
Native Resolution
XGA (1024 x 768)
Number of Pixels
786,432 x 3 = 2,359,296
Lumens Brightness
2500
Contrast Ratio
500:1
Aspect Ratio
Native 4:3/16:9 compatible
System
NTSC, NTSC4.43, PAL, SECAM, PAL-M, PAL-N
HDTV Compatibility
480i, 576i, 480p, 720p, 1080iLens System

Lens

F1.8-1.9
Focus/Zoom Adjusting
Manual focus and zoom 1.2x
Lens Shift
No
Recommended Projection Size
From 30 up to 300″ diagonal, at a throw distance of 2.5 to 30.5′

Features
Keystone Correction
Digital
Ceiling Mountable
Yes
Rear Screen Projection
Yes
Projection Tilt Option
Yes
Built-in Speaker
1W x1

Input/Output Connectors

Input Terminals
Computer
HD-15 RGB - VGA (15-pin) x2

Video
Composite RCA x1
Component: Via HD-15 RGB - VGA (15-pin) (Shared)
S-Video 4-pin x1

General

Lamp (Bulb)
190w UHB
2000-hour Life Expectancy
Whisper Mode: 3000 hours
(Depending on conditions)
Fan Noise
35dB, Whisper mode: 29dB
Remote Control
Yes
Power Requirements
310w, 100-240v AC
Dimensions (WxHxD)
10.8 x 2.3 x 8.1″ (274.32 x 58.42 x 205.74mm)
Weight
3.9 lbs (1.8 kg)


IR Leds ordered


SFH485 IR LEDToday I ordered 30 IR Leds @ Conrad.be. The IR-EMITTER SFH485 (T 1 3/4) is a high quality LED emitting light at 880nm wavelength. These babys should deliver the good performance I am looking for. I’ll keep you posted when they arrive.


Multi-touch.be


Applied for www.multi-touch.be at flexwebhosting.nl. This domain will be used to host the website of the company that I will start around this project. The main purpose will be to sell soft and hardware to company’s interested in this project. To start with, I’ll install an Joomla CMS on this domain.

After I succesfully building the prototype, I will start a marketing campaign to promote this technology and to sell it to, hotels, bars, company’s, schools, etc.

Hope to see you soon at multi-touch.be !


Pen v1.0


Started to design the second try of my IR Pen. Here is the final drawing of it:


Bill Of Material


These are the material (and there cost) of the project:

  • 30 x IR-Emittor SFH485 (24.90€) — Conrad.be
  • 01 x ATX PSU (25.95€) — Conrad.be
  • 01m² plexiglass (free)
  • 01 x Philips SPC 900NC (46.90€) — Pixmania.be
  • 01 x Hitachi CPX5 Projector (779$ = 493.26 €) — bhphotovideo.com
  • Wooden frame (free)

Rubber silicone still has to added to this list, so is the projection paper.

Total cost: 591.01€ = 933.37$


IR Pen V0.1


Today I received the custom made pen from my brother, I”ll add the sheet later as I am currently at work. It has to room to fit an 9v battery, which is serious overkill considering only one LED is used. But again, it is only a prototype, so an improved version will be developped later on.


Hello world!


The first post to start a brand new project of mine, called… erh well it actually hasn’t got any name yet, but this will be the first thing on my TODO list!

The purpose of this project is to create and optimize a multi-touch monitor which should be able to operate an entire multi-purpose software application, yet to be developped!

So far my first post, later this day I will post some initials drawings and a bill of material for this project.