Skip to main content
SpringerLink
Log in

Comparison between Photo Interrupter and Giant Magnetoresistive Sensor for Auto Focusing System in the Digital Camera

  • Chapter
Book cover Frontiers of Intelligent Autonomous Systems

Part of the book series: Studies in Computational Intelligence ((SCI,volume 466))

  • 1666 Accesses

Abstract

Photo interrupter (PI) sensors are used to focus the lens in the optical devices such as digital camera, close circuit camera etc. It is cheap and easy to control. Despite of the advantages it has some limitations such as it is difficult to assemble, needs small tolerance and lacks high speed and accuracy. Magnetoresistive (MR) especially giant magnetoresistive (GMR) sensor provides the solution of PI sensor’s weak points. Furthermore, using GMR sensor shows better performances than PI sensor for the focusing system.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Smith, C.H., Schneider, R.W.: Low-Field Magnetic Sensing with GMR Sensors. Sensors EXPO (1999)

    Google Scholar 

  2. Baibich, M.N., Broto, J.M., Fert, A., Nguyen Van Dau, F., Petroff, F.: Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic Superlattices. Phys. Rev. Lett. 61, 2472–2475 (1988)

    Article  Google Scholar 

  3. Jander, A., Smith, C., Schneider, R.: Magnetoresistive Sensors for Nondestructive Evaluation. In: SPIE International Symposium, vol. 5770, pp. 1–13 (2005)

    Google Scholar 

  4. Data Specification from Hitachi Metals (2011)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dept. of Electrical Engineering, Pusan National University, Busan, 609-735, Republic of Korea

    Sakura Sikander, Han Nam Lee & Hee-Je Kim

Authors
  1. Sakura Sikander
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Han Nam Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hee-Je Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Sakura Sikander .

Editor information

Editors and Affiliations

  1. School of Information, and Communication Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Gyeonggi-do, 440-746, Korea, Republic of (South Korea)

    Sukhan Lee

  2. , Dept of Aerospace Information Eng, Konkuk University, 1 Hwayang-dong, Seoul, 143-701, Korea, Republic of (South Korea)

    Kwang-Joon Yoon

  3. , School of Electrical Engineering, Pusan National University, San 40, Jangcheon-dong, Pusan, 609-735, Korea, Republic of (South Korea)

    Jangmyung Lee

Rights and permissions

Reprints and permissions

Copyright information

© 2013 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

Sikander, S., Lee, H.N., Kim, HJ. (2013). Comparison between Photo Interrupter and Giant Magnetoresistive Sensor for Auto Focusing System in the Digital Camera. In: Lee, S., Yoon, KJ., Lee, J. (eds) Frontiers of Intelligent Autonomous Systems. Studies in Computational Intelligence, vol 466. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35485-4_21

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-35485-4_21

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-35484-7

  • Online ISBN: 978-3-642-35485-4

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics

Search

Navigation