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Rod lens system for endoscope and endoscope provided with rod lens system

A rod lens and endoscope technology, applied in the field of endoscopy, to achieve the effects of edge sharpness improvement, large edge sharpness, and astigmatism correction

Active Publication Date: 2017-06-27
HENKE SASS WOLF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to the problem that the longitudinal chromatic aberration caused by the rod lens system can be corrected only in very difficult cases

Method used

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  • Rod lens system for endoscope and endoscope provided with rod lens system
  • Rod lens system for endoscope and endoscope provided with rod lens system
  • Rod lens system for endoscope and endoscope provided with rod lens system

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Embodiment Construction

[0036] exist figure 1 In the embodiment shown in , a rod lens system 1 according to the invention is illustrated in a schematically represented endoscope 2, wherein said rod lens system 1 is arranged on a rigid shaft 3 of said endoscope 2 middle.

[0037] Furthermore, in the shaft 3 a schematically represented objective 4 is arranged which images an object 6 situated in front of the distal end 5 of the shaft 3 into a first intermediate image plane 7 which The intermediate image plane 7 can also be referred to as the far-end intermediate image plane 7 ( figure 2 ). Furthermore, the endoscope 2 comprises a main part 8 in which further optics, such as, for example, a schematically indicated eyepiece 9 , can be arranged.

[0038] The rod lens system 1 according to the invention has a first inversion stage 10 , a second inversion stage 11 , and a third inversion stage 12 which are arranged one behind the other and which each project an intermediate image into the next intermedi...

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PUM

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Abstract

Provide for endoscope lens rod system, wherein the rod lens system (1) has at least one inversion level (10, 11, 12), to be located in the distal intermediate image plane (7) in the intermediate image to the proximal intermediate image plane (15), each of them the reversal level (10, 11, 12) has at least one rod lens (16, 17, 18, 19, 20, 21) and the intermediate image to the next intermediate image plane, wherein the rod lens system (1) is formed in asymmetric rod lens system (1) and at least a rod lens (16, 17, 18, 19, 20, 21) are formed as asymmetric reversal level (10, 11, 12).

Description

technical field [0001] The invention relates to a rod lens system for an endoscope, wherein the rod lens system has at least one inversion stage in order to image an intermediate image located in a distal intermediate image plane into a proximal intermediate image plane, wherein Each inversion stage has at least one rod lens and images an intermediate image into the next intermediate image plane. In addition, it relates to an endoscope with such a rod lens system. Background technique [0002] The rod lens system is used in endoscopes to image, by means of the endoscope, an intermediate image of an object to be observed in the distal intermediate image plane into the proximal intermediate image plane and thus relay the intermediate image. image. [0003] Typically, such rod lens systems have repeated rod lenses in symmetrical inversion stages in order to keep the overall system cost low. The same rod lenses are mounted in opposite directions. This leads to the problem th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B23/24G02B27/00G02B27/09
CPCG02B23/2446G02B27/0025G02B27/0966A61B1/002G02B13/0095G02B13/18G02B23/243
Inventor 奥立弗·瑞赫
Owner HENKE SASS WOLF
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