A SEMINAR PRESENTATION  ON   HOLOGRAPHIC VERSATILE  DISC GUIDED BY: TEJAS RANA PREPARED BY: CHIRAG L. LATHIYA 3 RD  YEAR B...
What is machine vision? <ul><li>Machine vision is human eyes and measure and convert into signal intake gols image process...
Collinear Holography <ul><li>In collinear holography there are two type of laser beam. </li></ul><ul><li>Red beam(Informat...
<ul><li>while the red laser is used as the  reference beam and to read servo information from a regular CD-style aluminum ...
Basic structure <ul><li>It has similar to CD-DVD structure. It is differs to use laser beams  & its pulse speed. </li></ul...
How it works? <ul><li>Current optical storage saves one bit  per pulse & the HVD hopes to improve this efficiency with cap...
<ul><li>Data-SLM-Binary </li></ul><ul><li>Data is created to fire laser beam into the beam splitter to produce 2 beam. </l...
<ul><li>The 0’s & 1’s data pages are translated into the pixel of the special light modulator that either block or tr- </l...
Capacity, Speed, Cost Comparison     Capacity Writing/ Reading  Speed Discs Approx. Cost Recordable Player Approx. Cost Ho...
Advantages <ul><li>HVD have the capacity to hold up to 3.9 terabytes (TB) of information, which is approximately  5,500  t...
Multimedia Video-On-Demand Portable Computing Consumer Audio/Video <ul><ul><ul><li>Applications </li></ul></ul></ul>
Disadvantages <ul><li>Holography memory has  </li></ul><ul><li>been around for more than 40 years  </li></ul><ul><li>but s...
Holographical versatile disk
Holographical versatile disk
Holographical versatile disk
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Holographical versatile disk

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  • Tabulation of Cost, (player &amp; discs), storage capacity, writing &amp; reading speed, features, reliability..
  • Holographical versatile disk

    1. 1. A SEMINAR PRESENTATION ON HOLOGRAPHIC VERSATILE DISC GUIDED BY: TEJAS RANA PREPARED BY: CHIRAG L. LATHIYA 3 RD YEAR B.E. ROLL NO. 17
    2. 2. What is machine vision? <ul><li>Machine vision is human eyes and measure and convert into signal intake gols image processing </li></ul><ul><li>Machine vision technology is an important branch of computer science . </li></ul>
    3. 3. Collinear Holography <ul><li>In collinear holography there are two type of laser beam. </li></ul><ul><li>Red beam(Information beam) </li></ul><ul><li> Green beam(Refrence beam) </li></ul><ul><li>This two beams are collimated in a single beam. </li></ul><ul><li>The green laser reads data encoded as laser interference fringes from holographic layer near the top of the disc. </li></ul>
    4. 4. <ul><li>while the red laser is used as the reference beam and to read servo information from a regular CD-style aluminum layer near the bottom. </li></ul><ul><li>A dichroic mirror layer between the holographic data and the servo data reflects the green laser while letting the red laser pass through. </li></ul>
    5. 5. Basic structure <ul><li>It has similar to CD-DVD structure. It is differs to use laser beams & its pulse speed. </li></ul><ul><li>The Components are like … </li></ul><ul><li>blue or green laser(532 nmwl), </li></ul><ul><li> red laser ,beam splitter, mirrors </li></ul><ul><li>special lights modulator(SLM), </li></ul><ul><li>C-MOS sensor ,photo polymer </li></ul><ul><li>recording medium. </li></ul>
    6. 6.
    7. 7. How it works? <ul><li>Current optical storage saves one bit per pulse & the HVD hopes to improve this efficiency with capability of around 60,000 bits/pulse. </li></ul><ul><li>Truncated cone shape that has 200 micrometer diameter at the bottom & </li></ul><ul><li>500 micrometer diameter at top. </li></ul>
    8. 8.
    9. 9. <ul><li>Data-SLM-Binary </li></ul><ul><li>Data is created to fire laser beam into the beam splitter to produce 2 beam. </li></ul><ul><li>1.Reference beam ( Directed to away </li></ul><ul><li>from the SLM). </li></ul><ul><li>2.Information beam ( Direct toward – </li></ul><ul><li>the SLM ). </li></ul>
    10. 10. <ul><li>The 0’s & 1’s data pages are translated into the pixel of the special light modulator that either block or tr- </li></ul><ul><li>ansmit light. </li></ul><ul><li>A memory system isn't very useful if you can't access the data you've stored. </li></ul>
    11. 11. Capacity, Speed, Cost Comparison     Capacity Writing/ Reading Speed Discs Approx. Cost Recordable Player Approx. Cost Holographic Versatile Discs (HDSS) HVD 300 GB– 1.6 TB 1 GB/s $120 $3000 Blu-ray Discs BD 25 GB– 50 GB 36.5 Mb/s $18 $2000 Digital Versatile Discs DVD– HD-DVD 5 GB– 30 GB 36.5 Mb/s $10 $2000 Compact Discs CD 783 MB– 1.3 GB 36.5 Mb/s $4 $200
    12. 12. Advantages <ul><li>HVD have the capacity to hold up to 3.9 terabytes (TB) of information, which is approximately 5,500 times the capacity of a CD-ROM, 830 times the capacity of a DVD, 160 times the capacity of single-layer Blu-ray Discs, and about 4 times the capacity of the largest computer hard drives as of 2007. </li></ul><ul><li>Transfer Rate is also higher than DVD. </li></ul>
    13. 13. Multimedia Video-On-Demand Portable Computing Consumer Audio/Video <ul><ul><ul><li>Applications </li></ul></ul></ul>
    14. 14. Disadvantages <ul><li>Holography memory has </li></ul><ul><li>been around for more than 40 years </li></ul><ul><li>but several characteristic made it difficult to implement , now progras </li></ul><ul><li>of HVD make it easy to implement. </li></ul><ul><li>It is not available in market. </li></ul>
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