Analysis and suppression of stray light in miniaturized panoramic system

Yuheng, LI; Liu, Zhiying; Huang, Yunhan; Xu, Weihe

doi:10.5768/jao202041.0301004

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One drawback of this catadioptric optical configuration is that the behavior of non-imaging light inside the PHU can be complex, resulting in stray light in the optical system. The stray light issue is discussed in published literature, [1][2][3] where brief classifications of stray light in PAL systems and elementary methods to control were proposed. Recently, a general design algorithm to control several troublesome stray light in PAL systems was published.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive stray light analysis and feature rays identification for a panoramic annular lens

Liao,

Bai

2023

Optical Design and Testing XIII

View full text Add to dashboard Cite

The optical performance of a panoramic annular lens (PAL) might be severely deteriorated by stray light due to the catadioptric optical structure and the ultra-large field of view (FoV). A comprehensive research on stray light in PAL systems with experimental validation is carried out. The fundamental cause, forming light path, impact on the image plane, and first-hand solutions of all visible types of stray light are obtained and discussed. By analyzing some specific light paths, we also introduce the prerequisite of a real-time evaluation and suppressing algorithm for stray light in a PAL system that purely operates in optical design software.

show abstract

Section: Introductionmentioning

confidence: 99%

Comprehensive stray light analysis and feature rays identification for a panoramic annular lens

Liao,

Bai

2023

Optical Design and Testing XIII

View full text Add to dashboard Cite

show abstract

General design algorithm for stray light suppression of a panoramic annular system

Liao¹,

Gao²,

Bai³

et al. 2023

Opt. Express

View full text Add to dashboard Cite

In this work, a universal algorithm for designing a panoramic annular lens (PAL) system free from stray light is proposed. The impact of a given stray light path to the optical system could be estimated without running a full stray light analysis process, which allows designers to eliminate troublesome stray light paths by optimizing lens parameters at an early stage of optical design. A 360° ×(40°-100°) PAL system is designed and implemented to verify the proposed method. Simulation shows that the point source transmittance (PST) decreases by 2 orders of magnitude at a specific field-of-view (FoV) range after optimizing the system. Experimental results show perfect consistency with the simulation predictions, which indicate that two types of stray light are totally eliminated in the demonstrated system. This stray light analysis and suppression method provides a promising approach for the research and development of ultra-wide angle high performance optical systems.

show abstract

Analysis and suppression of stray light in miniaturized panoramic system

Cited by 2 publications

References 0 publications

Comprehensive stray light analysis and feature rays identification for a panoramic annular lens

Comprehensive stray light analysis and feature rays identification for a panoramic annular lens

General design algorithm for stray light suppression of a panoramic annular system

Contact Info

Product

Resources

About