Display with folded optical path

By using polarizers to achieve folded light paths in the display device of remotely operating surgical systems, the problem of large field of view without visual interference is solved, and the clarity of images and the comfort of surgeons is improved.

CN119758597APending Publication Date: 2025-04-04INTUITIVE SURGICAL OPERATIONS INC
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Patent Information

Application Number
CN202510033039.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2018-01-31
Filing Date
2019-01-30
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

In remote operating surgical systems, existing display devices are difficult to provide images with large fields of view without visual interference, especially when surgeons require prolonged use.

Method used

The folded light path is achieved by using a polarizer, such as a linear polarizer or a circular polarizer in the optical path of the display device, ensuring that only light reflected off the reflective surface can pass through the polarizer, while the light from the direct line of sight is blocked.

Benefits of technology

This technology allows for the creation of a folded light path between the display device and the viewer, reducing visual interference such as dual images, improving image clarity and surgeon comfort.

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Abstract

The invention relates to a display with a folded optical path. The technology described in this document can be embodied in a viewing device for a surgical apparatus, the device comprising: a lens assembly comprising a first polarizer; a display device configured to present an image of the surgical site; and a reflective surface oriented at an acute angle relative to the display device such that light from the display device is reflected from the reflective surface toward the lens assembly. A first polarizer in the lens assembly is configured such that light reflected from the reflective surface passes through the first polarizer and light reaching the first polarizer that is not reflected from the reflective surface is substantially blocked.
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