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Mobile device camera design with Q-type polynomials to achieve higher production yield.
Bin Ma1, Katelynn Sharma, Kevin P Thompson
1The Institute of Optics, University of Rochester, 275 Hutchinson Road, Rochester, New York 14627, USA.
Optics Express
|August 14, 2013
Summary
New Q-type polynomials and external pivot points improve mobile camera lens manufacturing. This approach reduces alignment sensitivity and increases yield for aspheric surfaces in compact devices.
Area of Science:
- Optical Engineering
- Materials Science
Background:
- Mobile device camera lenses face extreme design constraints due to tight packaging, leading to challenging aspheric surface requirements.
- Conventional power series descriptions for aspheres result in high sensitivity to alignment errors and low manufacturing yield.
Purpose of the Study:
- To introduce and evaluate Q-type polynomials and external pivot points for designing mobile device camera lenses.
- To improve manufacturing yield and reduce alignment sensitivity in aspheric lens design.
Main Methods:
- Applied Q-type polynomials and external pivot points to a mobile device camera lens design.
- Utilized an active RMS slope constraint during optimization.
- Compared the new design approach with conventional power series surface descriptions.
Main Results:
- Q-type polynomials provide direct access to RMS slope during optimization.
- The combined approach significantly reduced alignment sensitivity.
- Designs using Q-type polynomials and external pivot points demonstrated substantially higher manufacturing yield.
Conclusions:
- Q-type polynomials and external pivot points offer a superior method for designing mobile camera lenses.
- This technique enhances manufacturability and yield for aspheric surfaces in compact optical systems.
