Design of achromatic and apochromatic plastic micro-objectives.

Area of Science:

• Optics
• Optical Engineering
• Materials Science

Background:

• Micro-objective lenses are crucial for imaging devices.
• Achieving high optical performance, particularly color correction (achromatization and apochromatization), is challenging with plastic lenses.
• Existing designs may not meet the stringent requirements of modern applications.

Purpose of the Study:

• To investigate the feasibility and efficiency of using a single diffractive lens for achromatizing and apochromatizing plastic micro-objectives.
• To provide guidance on initial optical system configurations and design parameter calculations.
• To assess if the performance of these plastic micro-objectives meets industry standards.

Main Methods:

• Utilized diffractive optical elements (DOEs) in conjunction with plastic refractive lenses.
• Developed methodologies for calculating initial design parameters for achromatism and apochromatism.
• Performed optical design and simulation to evaluate performance metrics.
• Compared simulated performance against established industry standards for cell-phone and CCTV objectives.

Main Results:

• Demonstrated the successful application of a single diffractive lens for both achromatization and apochromatization in plastic micro-objectives.
• Provided practical recommendations for assembling starting configurations and optimizing design parameters.
• Confirmed that the optical performance of the designed achromatic and apochromatic plastic micro-objectives meets the qualifying standards for cell-phone and CCTV applications.

Conclusions:

• A single diffractive lens is a viable and efficient solution for correcting chromatic aberrations in plastic micro-objectives.
• The proposed design approach and optimization methods enable the creation of high-performance plastic micro-optics.
• Plastic micro-objectives designed using this method are suitable for demanding applications like mobile imaging and surveillance.