ENSC 305/340 Team Presentation

1
ENSC 305/340Team Presentation

• Dyno I
• Fall 2004
• Presented By
• Arash Taheri
• Ali Taheri
• Houman Hatamian
• Nima Kokabi

2
Agenda

• Introduction/Background by Arash
• Hardware Design by Nima
• Software Design by Houman
• Implementation by Ali
• Cost Structure / Future Plan by Arash
• Conclusion by Nima

3
Introduction

• A prosthetic eye replaces a real human eye lost
  in an accident or by a disease
• These eyes primarily serves esthetical purposes
• The appearance of prosthetic eyes have improved
  quite dramatically over the years
• However more improvements need be done

4
Current Prosthetic Eyes

• Prosthetic eyes provide patients with a very
  closely resembling replica of real human eye.
• However, the main draw back of current prosthetic
  eyes is lack of dynamicity in the pupil.

5
Current Prosthetic Eyes cont
6
Dyno Is Proposed Solution

• Dyno I have developed a design in which a
  dynamic pupil is integrated into a prosthetic
  eye.
• A custom made LCD consisting of several rings is
  utilized as the pupil of the eye.
• The system is also consists of photodiode and a
  microcontroller to measure the intensity of the
  ambient light.

7
Overall System Design
8
Custom-Made Transmissive LCD
9
Final Hardware Design
10
Microcontroller

• Ultra low-power microcontroller featuring LCD
  driver
• Ability to reduce unnecessary power consumption
• Utilizing the on board A/D converter to measure
  the intensity of the ambient light
• Battery powered, low cost and reliable

11
Software Design

• Compare photo diode generate voltage with
  calibrated reference voltage
• Calculating the number rings necessary to be ON
• Making the CPU to go the Sleep mode and remain
  there for 1 second
• Reducing power consumption
• Going to standby mode when at pitch dark for more
  than 5 min tremendous power saving feature

12
Software Algorithm
13
Design Obstacles

• Battery powered One 3V battery preferentially
  lasting for 2 years
• All the circuitry components including the
  battery need to be heat resistance the
  prosthetic eyes need to be heat cured
• Size constraint the smallest the circuitry the
  more universal the product will be

14
Working Prototype
15
Working Prototype cont
16
Projected Cost

• Microcontroller 2.50
• Photodiode 50
• Battery 2
• LCD 2.50
• Crystal 1
• Electronic components 1
• LCD flex cable connector 1.75
• PCB 1.50
• Assembly cost 75
• Total 13.50 Cnd

17
Projected Market

• Approximately new 400 prosthetic eyes made in BC
  last year
• Life cycle of 2 to 3 years for existing eyes
  they need to be replaced
• Approximately 40,000 prosthetic eyes made in
  North America last year
• Estimated 20,000 colored eye

18
Projected Marketcont

• Our target price 125
• Estimated revenue from North America 2,500,000
• Projected Startup funding required
• 150,000
• Possible sources of funding IRAP, Bank Loans,
  Angel Investor, etc.

19
Future Improvements

• Thin LCD possibly the newly introduced thin film
  LCD
• Designing our custom-made integrated circuitry,
  IC extremely small and low powered consumption
• Source of power rechargeable batteries, solar
  cells, etc.

20
Conclusion

• Our product improves the appearance of a
  prosthetic eyes by a great extent
• Our designed prosthetic eye at Dyno I will
  provide patients with a very cost effective and
  cosmetically appealing solution that functions
  very similar to a real eye
• Sustainable market with potential to be extended
  to European and other markets throughout the
  world.