Optical design of CCF PlanApo microobjectives 50 mm observation and super long working distance

Frolov, Dmitry N.; Vinogradova, Olga; Frolov, Alexey D.; Wen, Liyun; Jing, Fanhua

doi:10.1117/12.2319840

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…These are also objectives designed for direct projection of images on a digital receiver. Such objectives can be constructed as a combination of two objectives, the discussion of which was given in [2]. Objective 5x is used as an adapter for projecting an image onto a 2/3 (1/3) inches digital receiver, the remaining objectives are used as the main interchangeable objectives; in one version, two identical 5x objectives are used, located "towards".…”

Section: Objective -Microscope For Direct Projection Onto a Digital R...mentioning

confidence: 99%

Contrary microscope: opportunities and advantages: optical design

Frolov,

Vinogradova,

Frolov

et al. 2023

Novel Optical Systems, Methods, and Applications XXVI

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In the classical layout of the light microscope, when the objective is used as a projection system, and eyepiece as an observation, the redistribution of overall and functional parameters is proposed. In the classical layout typically, own linear magnification for objectives is from 2.5 to 100x, and eyepieces from 5 to 30x. It is proposed to use objectives of magnification of not more than 10-15x but having extremely achievable input numerical apertures. In this case, the range of increases of the eyepieces expands to 50x and even 100x. We offer examples of optical designs of objectives and eyepieces. The objective 10x magnification has NA=0.90 and 12.5x NA=1.20 of the water immersion. The linear field in the space of images is 20 mm. In addition, examples of optical designs of eyepieces 50x and 100x are offered too.

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Section: Objective -Microscope For Direct Projection Onto a Digital R...mentioning

confidence: 99%

Contrary microscope: opportunities and advantages: optical design

Frolov,

Vinogradova,

Frolov

et al. 2023

Novel Optical Systems, Methods, and Applications XXVI

Self Cite

View full text Add to dashboard Cite

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Method of calculation of initial design parameters of microscope objective lenses with a long working distance

Mikš

Novák

2022

Appl. Opt.

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We describe an analytic method of the initial design of microscope objectives with a long working distance. The optical system of a microscope objective is composed of two thin optical elements and a frontal optical element from several thick lenses. The paper describes formulas that make it possible to calculate fundamental parameters of the objective, namely Seidel aberration coefficients, radii of curvature, refractive indices of individual lenses of the microscope objective, etc. The proposed method of calculation of the initial design parameters of the microscope objective, which is based on the theory of aberrations of the third order and chromatic aberrations of the first order, enables us to obtain a good starting design for further optimization using optical design software. The method of the design is presented in an example of the microscope objective with a long working distance.

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Optical design of CCF PlanApo microobjectives 50 mm observation and super long working distance

Cited by 2 publications

References 2 publications

Contrary microscope: opportunities and advantages: optical design

Contrary microscope: opportunities and advantages: optical design

Method of calculation of initial design parameters of microscope objective lenses with a long working distance

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