Dr. Daowei Pan Profile

Dr. Daowei Pan

at Suzhou Institute of Biomedical Engg and Technology

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 March 2019 Paper

High-precision high-speed and noninvasive optic distance measurement

Daowei Pan, Junxiang Wang, Ning Tang, Guohua Shi

Proceedings Volume 11023, 1102343 (2019) https://doi.org/10.1117/12.2520556

KEYWORDS: Distance measurement, Coherence (optics), Interferometry, Optics manufacturing, Optical coherence tomography, Precision optics, Calibration

Read Abstract +

In all kinds of optical applications, the precision of central optical distance has significant influence on the desired imaging properties according to the optical design requirements. In this paper, we present a measurement method for the determination of the central distance both in assembled systems and single-lens with high precision, high speed and non-invasive characters. The distance between optical surfaces are optically measured by the mean of swept source domain interferometric system. A fiber-optics system with a central wavelength 1310 nm is built, the central distances of all surfaces within coherence length can be quickly measured at the same time. The system pixel resolution is about 0.1μm calibrated by Mitutoyo standard level-zero gauge and calculated by Fast Fourier Transform (FFT) and zero-padding algorithm. System precision double checked by other gauges is less than 0.3μm. The standard gauge-sets and a lens were measured by this system, the result also verified the high precision. The systematic error is less than 0.3μm and the sensitivity is about 22μm experimentally. The high speed swept light source (100kHz used in system) ensures the quick measuring speed. This measurement method has high precision, high speed, non-invasive and high sensitivity characters, and can be applied in related optical system.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years