New perspectives in monovision: A study comparing aspheric with disposable lenses

Michaud, Langis; Tchang, Jean-Pierre; Baril, C; Gresset, Jacques

doi:10.1016/0892-8967(95)00056-z

Cited by 9 publications

(2 citation statements)

References 9 publications

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“…Due to the tremendous growth in media technology in recent times, the demand for ultraprecision optical components 1,2 has increased rapidly. In addition, there has been a corresponding increase in the demand for improvement in optical performance, e.g., higher resolution and brightness.…”

Section: Introductionmentioning

confidence: 99%

Thermal deformation compensation in the molding of aspheric glass lenses

Lee

Jang

et al. 2014

Opt. Eng

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Generally, aspheric glass lenses are manufactured using a glass molding press (GMP) method and a tungsten carbide mold core. This study analyzes the thermal deformation that occurs during the GMP process, and the results were applied to compensate an aspheric glass lens. After the compensation process, the form accuracy of aspheric glass lenses improved from ∼3.7 to ∼0.35 μm. The compensated lens complied with the actual specifications. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Introductionmentioning

confidence: 99%

Thermal deformation compensation in the molding of aspheric glass lenses

Lee

Jang

et al. 2014

Opt. Eng

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“…Modules used in digital camera and camera-phone are being miniaturized and high-powered rapidly. Therefore, spheric and plastic lenses are being converted to aspheric glass lens to achieve proper optical properties and miniaturization [1]. These aspheric lenses are generally processed by a high temperature and high pressure molding method using a tungsten carbide mold.…”

Section: Introductionmentioning

confidence: 99%

Optical Properties of Aspheric Glass Lens Using DLC Coating Mold

Kim

Jeong

Kim

et al. 2007

KEM

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In this research, the optimal grinding condition has been obtained by design of experiment(DOE) for the development of aspheric lens for the 3 Mega Pixel, 2.5x optical zoom camera-phone module. Also, the WC mold was processed by the method of ultra precision grinding under this optimal grinding condition. The influence of DLC coating on form accuracy (PV) and surface roughness(Ra) of the mold was evaluated through measurements after DCL coating using ion plating on the ground mold. Also, aspheric glass lens was molded by before and after the use of the mold of DLC coating, respectively. The optical characteristics of each sample, which were molded by the different mold, were compared with each other.

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Presbyopia

Meyler¹,

Ruston²

2018

Contact Lens Practice

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New perspectives in monovision: A study comparing aspheric with disposable lenses

Cited by 9 publications

References 9 publications

Thermal deformation compensation in the molding of aspheric glass lenses

Thermal deformation compensation in the molding of aspheric glass lenses

Optical Properties of Aspheric Glass Lens Using DLC Coating Mold

Presbyopia

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