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Illumination and observation systems for ophthalmic microscopes, ophthalmic microscopes, and microscopy methods utilizing four red-reflective observation pupils

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

Active Publication Date: 2021-10-15
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 systems for ophthalmic microscopes, ophthalmic microscopes, and microscopy methods utilizing four red-reflective observation pupils
  • Illumination and observation systems for ophthalmic microscopes, ophthalmic microscopes, and microscopy methods utilizing four red-reflective observation pupils
  • Illumination and observation systems for ophthalmic microscopes, ophthalmic microscopes, and microscopy methods utilizing four red-reflective observation pupils

Examples

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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 viewing system (1) for a microscope (2), in particular for performing ophthalmic surgery, a microscope and a microscopic examination method. The illumination and viewing system (1) comprises first, second, third and fourth viewing pupils (4, 5, 8, 9) for the eyes of two observers (such as a surgeon and an assistant); 1. On-axis illumination (6, 10, 11) in the third and fourth viewing pupils (4, 8, 9) to red reflection (13) in the center; and primary illumination (7) in the second observation pupil (5). To provide expansive illumination of the surrounding environment, the primary illumination has a larger field of illumination than the on-axis illumination (6, 10, 11) of any of the first, third and fourth viewing pupils (4, 8, 9). In order to provide a superior quality of observation in particular for observers using the second observation pupil (5) and to further enable a visible and uniform reflection of red light in the second observation pupil (5), according to the invention there is provided The primary illumination overlaps the second viewing pupil (5) by at least 50% to produce a red reflection (13) in the second viewing pupil (5). A further improvement involves aligning the main illumination (7) with the optical axis (12) of the second viewing pupil (5) within ±5° and aligning the coaxial illumination (6, 10, 11) with the corresponding first The first, third and fourth viewing pupils (4, 8, 9) overlap by at least 50%.

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 Patents(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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