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Illumination and observation system for an ophthalmic microscope, ophthalmic microscope and microscopying method using four red reflex observation pupils

An observation system and a technology for observing light, which is applied in the field of microscopes and microscopes for ophthalmic surgery, and can solve problems that need to be improved

Active Publication Date: 2018-04-17
LEICA INSTR SINGAPORE PTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The image quality of known illumination and viewing systems, while much improved in the past, still leaves room for improvement

Method used

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  • Illumination and observation system for an ophthalmic microscope, ophthalmic microscope and microscopying method using four red reflex observation pupils
  • Illumination and observation system for an ophthalmic microscope, ophthalmic microscope and microscopying method using four red reflex observation pupils
  • Illumination and observation system for an ophthalmic microscope, ophthalmic microscope and microscopying method using four red reflex observation pupils

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Embodiment Construction

[0035] First, refer to figure 1 The design and function of the illumination and observation system 1 in the microscope 2 are explained. figure 1 A schematic plan view of the main objective 3 with a first observation pupil 4 and a second observation pupil 5 is shown. The first observation pupil 4 and the second observation pupil 5 are preferably used to assist eg an assistant or student in ophthalmic surgery.

[0036] The on-axis illumination 6 is directed through the first observation pupil 4 , while the main illumination 7 is directed through the second observation pupil 5 . Preferably, there is no overlap of the primary illumination with the first observation pupil 4 and / or no coaxial illumination in the second observation pupil 5 .

[0037] figure 1 The setup shown is particularly useful for microscopes 2 used in ophthalmic surgery, so-called ophthalmic microscopes. At the object to be observed, ie in the object plane, the main illumination 7 produces an illumination fi...

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Abstract

The invention relates to an Illumination and observation system (1) for a microscope (2), in particular a microscope for performing eye surgery, a microscope and a microscopying method. The Illumination and observation system (1) comprises a first, second, third and fourth observation pupil (4, 5, 8, 9) for the eyes of two observers such as a surgeon and an assistant, a coaxial illumination (6, 10, 11) in the first, third and fourth observation pupil (4, 8, 9) to generate a red reflex (13) in the first, third and fourth observation pupil (4, 8, 9), and a main illumination (7) in the second observation pupil (5). In order to provide a wide illumination of the surroundings, the main illumination has a larger field of illumination than the coaxial illumination (6, 10, 11) in any of the first,third and fourth observation pupil (4, 8, 9), To provide superior observation quality, in particular for the observer using the second observation pupil (5) and further to be able to generate a visible and homogenous red reflex in the second observation pupil (5), it is provided according to the invention that the main illumination overlaps at least 50 % with the second observation pupil (5) to generate a red reflex (13) in the second observation pupil (5). Further improvements relate to align the main illumination (7) within + / - 5 DEG to an optical axis (12) of the second observation pupil (5) and to overlap the coaxial illumination (6, 10, 11) at least 50 % with the respective first, third and fourth observation pupil (4, 8, 9).

Description

technical field [0001] The present invention relates to an illumination and observation system for a microscope, in particular for ophthalmic surgery on the eye being observed, which system comprises a first observation pupil, second observation pupil, third observation pupil, and fourth observation pupil; coaxial illumination in the first, third, and fourth observation pupils to red reflection in the viewing pupil; and primary illumination in the second viewing pupil, the primary illumination having a larger field of illumination than the on-axis illumination. The invention also relates to a microscope comprising such an illumination and observation system. [0002] Furthermore, the invention relates to a microscopy method for illuminating and viewing an object through four observation pupils, the method comprising illuminating the object with coaxial illumination passing through three of the four observation pupils, and Primary illumination is provided in the remaining vie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/00A61B3/13G02B21/08G02B21/22
CPCA61B3/132G02B21/0012G02B21/082G02B21/22
Inventor 曼弗雷德·库斯特迈克尔·古恩特尔特
Owner LEICA INSTR SINGAPORE PTE
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