A CLASS EXPERIMENT ON SPHERICAL ABERRATION IN A LENS
نویسندگان
چکیده
منابع مشابه
Changes in monkey crystalline lens spherical aberration during simulated accommodation in a lens stretcher.
PURPOSE The purpose of this study was to quantify accommodation-induced changes in the spherical aberration of cynomolgus monkey lenses. METHODS Twenty-four lenses from 20 cynomolgus monkeys (Macaca fascicularis; 4.4-16.0 years of age; postmortem time 13.5 ± 13.0 hours) were mounted in a lens stretcher. Lens spherical aberration was measured in the unstretched (accommodated) and stretched (re...
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Two methods of spherical aberration corrections of an electrostatic gridded lens have been studied with ray-tracing simulations. Both methods are based on modifying electrostatic field on the periphery of the lens. In a simplest case such modification is done by extending the part of the grid support on its radial periphery in axial direction. In alternative method the electric field on the rad...
متن کاملChanges in spherical aberration after lens refilling with a silicone oil.
PURPOSE It may be possible to restore accommodation to presbyopic human eyes by refilling the lens capsular bag with a soft polymer. In the present study, optical changes were measured that occurred in a pig eye model after the refilling of the capsular bag. METHODS The optical power and spherical aberration in 10 isolated pig lenses were measured under different conditions. They were first d...
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0026-2714/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.microrel.2012.06.026 ⇑ Corresponding author. Tel.: +1 617 353 9370. E-mail address: [email protected] (Y. Lu). Aplanatic solid immersion lens (SIL) microscopy is required to achieve the highest possible resolution for next generation silicon IC backside inspection and failure analysis. However, aplanatic SILs are very sus...
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reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1919
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1919.tb12450.x