Optimizing chromatic aberration calibration using a novel genetic algorithm

Fang, Yi-Chin; Liu, Tung-Kuan; Macdonald, John; Chou, Jyh–Horng; Wu, Bowen; Tsai, Hsien-Lin; Chang, En-Hao

doi:10.1080/09500340600552034

Cited by 16 publications

(8 citation statements)

References 7 publications

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“…The three types of zoom lens offer three, five, and nine positions, respectively, designated by T 1-1 , T 1-2 , T 1-3 , T 2-1 , T 2-2 , T 2-3 , T 2-4 , T 2-5 , T 3-1 , T 3-2 , T 3-3 , T 3-4 , T 3-5 , T 3-6 , T 3-7 , T 3-8 , T [3][4][5][6][7][8][9] . Calculations for each position are executed three times by the GA method, and one time only by CODE V software.…”

Section: Analysis Of Experimental Resultsmentioning

confidence: 99%

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Eliminating lateral color aberration of a high-resolution digital projection lens using a novel genetic algorithm

Fang

Liu

2007

Opt. Eng

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Advances in digital image optics have increased the significance of lateral color aberration because it is easily seen in the projected area. The choice of optical glass plays a role in the elimination of lateral color aberration. Current optical software still has difficulty in finding the optimal combination of optical glasses for twelve or more elements in a projection lens, the choice being among at least 300 optical glasses that have been developed. Even the modern damped least squares, a raytracing-based method, is limited, owing to its inability to identify an enhanced optical system configuration. As an alternative, this research proposes a new optimization process by using algorithms involving the theory of geometric optics in a projector lens, real encoding, multiple dynamic crossover, and random gene mutation techniques. Results and conclusions show that attempts to achieve negligible axial and lateral color aberration are successful.

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Section: Analysis Of Experimental Resultsmentioning

confidence: 99%

“…͑5͒ is more accurate and is hence adopted in this study. 9 Both the lateral and transverse chromatic aberrations in Eq. ͑5͒ are revealed in the vertical direction.…”

Section: Chromatic Aberration Theory and Formulamentioning

confidence: 99%

Eliminating lateral color aberration of a high-resolution digital projection lens using a novel genetic algorithm

Fang

Liu

2007

Opt. Eng

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“…For a lens of adjustable focus, Eq. (5) is relatively more accurate and is hence adopted in the present study [8].…”

Section: Article In Pressmentioning

confidence: 99%

“…To eliminate specific aberrations in extreme cases, DLS may not always perform as well as might be expected according to optical designers' experience. So far, few reports [4][5][6][7][8] of the use of genetic algorithm (GA) have been proposed as a way of reducing various aberrations in lens design.…”

Section: Introductionmentioning

confidence: 99%

Suppression of primary chromatic aberration by genetic algorithm in an advanced telephoto lens

Tsai¹,

Fang²,

Pai³

2009

Optik

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“…Most previous researchers have focused on ray tracing or discussed general aberrations or chromatic aberrations of the human-eye model [1][2][3][4][5][6][7][8]. Few studies, however, have simultaneously investigated the reduction of aspherical lens thickness and the optimization of aberrations [9][10][11]. Even fewer studies have explored the optimization of hyperbolic-aspherical-ophthalmic lens through the application of an automatic algorithm based on a human-eye model.…”

Section: Introductionmentioning

confidence: 99%

Optical computing for application to reducing the thickness of high-power-composite lenses

2014

Appl. Opt.

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With the adoption of polycarbonate lens material for injection molding of greater accuracy and at lower costs, polycarbonate has become very suitable for mass production of more economical products, such as diving goggles. However, with increasing requirements for visual quality improvement, lenses need to have not only refractive function but also thickness and spherical aberration, which are gradually being taken more seriously. For a high-power-composite lens, meanwhile, the thickness cannot be substantially reduced, and there is also the issue of severe spherical aberration at the lens edges. In order to increase the added value of the product without changing the material, the present research applied the eye model and Taguchi experiment method, combined with design optimization for hyperbolic-aspherical lens, to significantly reduce the lens thickness by more than 30%, outperforming the average thickness reduction in general aspherical lens. The spherical aberration at the lens edges was also reduced effectively during the optimization process for the nonspherical lens. Prototypes made by super-finishing machines were among the results of the experiment. This new application can be used in making a large amount of injection molds to substantially increase the economic value of the product.

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Optimizing chromatic aberration calibration using a novel genetic algorithm

Cited by 16 publications

References 7 publications

Eliminating lateral color aberration of a high-resolution digital projection lens using a novel genetic algorithm

Eliminating lateral color aberration of a high-resolution digital projection lens using a novel genetic algorithm

Suppression of primary chromatic aberration by genetic algorithm in an advanced telephoto lens

Optical computing for application to reducing the thickness of high-power-composite lenses

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