Representations of off-axis conics for lens design

Schiesser, Eric M.; Takaki, Nick; Stone, Bryan D.

doi:10.1117/12.2603666

Cited by 3 publications

(2 citation statements)

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“…Our next examination allowed these to vary. Base surface confocality is constrained by calculating the locations of the foci for each base surface by using the object distance, image distance, and tilt angle parameters, 15 and requiring consecutive surfaces to have overlapping foci.…”

Section: Optimizing Geometric Variables While Preserving Confocalitymentioning

confidence: 99%

Leveraging confocality and Cartesian reflectors in freeform optical designs

Papa,

Takaki,

Schiesser

2023

International Optical Design Conference 2023

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Section: Optimizing Geometric Variables While Preserving Confocalitymentioning

confidence: 99%

Leveraging confocality and Cartesian reflectors in freeform optical designs

Papa,

Takaki,

Schiesser

2023

International Optical Design Conference 2023

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“…Optical engineers have responded by developing techniques and tools that enable optical designs to enhance performance over larger temperature ranges. 2,3 Athermalization methods have included tailoring the effective Coefficient of Thermal Expansion (CTE) of the spacers, by using multiple materials, actively adjusting the focus, and choosing refractive materials such that the design is inherently athermal while using common structural materials.…”

Section: Introductionmentioning

confidence: 99%

Athermal design strategy for compact aspheric lens design

Crowther,

Herman

2023

Optomechanical Engineering 2023

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Optical designers are being asked to create designs that will perform over larger ranges of environmental conditions. This trend applies to compact aspheric lenses as well as other lens types. One potential athermalization strategy for compact aspheric lens design is to include at least one glass element in the mix of elements in the design. This is a well-known technique, but it leaves the lens designer with some questions. One might ask, are there some rules of thumb for using a glass element? We discuss that question in this paper and provide some potentially helpful guidance.

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Design method of imaging optical systems using confocal flat phase elements

Yang¹,

Gao²,

Cheng³

et al. 2022

Opt. Express

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Imaging systems consisting of flat phase element such as diffractive optical element, holographic optical element, and metasurface have important applications in many fields. However, there is still a lack of generalized and efficient design methods of these systems, especially for systems with nonsymmetric configurations. We proposed a design method of imaging system consisting of flat phase elements based on confocal properties. The description of the generalized phase function for realizing point-to-point stigmatic imaging is derived. Given the focal length or magnification as well as the locations of the elements based on the design requirements, the phase functions can be calculated very fast and stigmatic imaging of the central field is realized. The systems can be taken as good starting points for further optimization, during which the rotationally symmetric or freeform phase terms can be added. Several design examples are demonstrated to validate the feasibility of the method. The proposed method increases design efficiency while decreasing the dependence on existing systems and skills significantly, and can be easily integrated into optical design software.

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Representations of off-axis conics for lens design

Cited by 3 publications

References 0 publications

Leveraging confocality and Cartesian reflectors in freeform optical designs

Leveraging confocality and Cartesian reflectors in freeform optical designs

Athermal design strategy for compact aspheric lens design

Design method of imaging optical systems using confocal flat phase elements

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