Operating handle for a computerized optometry apparatus

By designing the base sliding assembly and lifting control assembly, and combining them with plastic injection molding, the problems of complex structure and difficulty in maintenance of traditional optometer operating handles have been solved. This has resulted in a lightweight, compact, easy-to-operate, and low-cost optometer operating handle, thus improving the user experience of the optometer.

CN113876294BActive Publication Date: 2026-02-27CHONGQING YEASN SCI & TECH CO LTD
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Patent Information

Application Number
CN202111193135.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-13
Publication Date
2026-02-27
Estimated Expiration
2041-10-13

AI Technical Summary

Technical Problem

Traditional optometers have complex operating handles, making sliding operation inconvenient and difficult to assemble, disassemble, and repair.

Method used

It adopts a base sliding assembly and a lifting control assembly, including a handle bracket, a rotary encoder sleeve, a rotary encoder bracket, a grating rotary encoder, and a dual-channel grating control board. The grating rotary encoder controls the motor to drive the lifting of the optical measurement unit. Combined with the plastic injection molding and thin design, it achieves a stable connection of the rotary motion pair.

Benefits of technology

It achieves a lightweight and compact operating handle that is easy to operate, has stable performance, and is inexpensive. It is also easy to assemble, disassemble, and maintain, thus improving the user experience of the optometry instrument.

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Abstract

The application discloses an operating handle of a computer optometry instrument, which comprises a base sliding assembly installed on a horizontal moving body part and a lifting control assembly installed on the base sliding assembly, wherein the lifting control assembly comprises a handle support, a rotary code disc sleeve sleeved outside the handle support, a rotary code disc support sleeved between the handle support and the rotary code disc sleeve and fixed on the rotary code disc sleeve, a grating rotary code disc installed on the rotary code disc support, and a two-way grating control board arranged on the handle support and used for detecting a rotary signal of the grating rotary code disc; the rotary code disc support, the rotary code disc sleeve and the grating rotary code disc form a rotary pair capable of rotating around the handle support; and the grating rotary code disc controls a motor to drive an optical measuring unit to lift up and down. The operating handle of the computer optometry instrument is compact in structure, convenient to operate, stable in performance, low in cost, and easy to assemble, disassemble and maintain.
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Citation Information

Patent Citations

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    CN204813791U

  • Joystick for ophthalmic device

    JP2005006893A

  • Ophthalmometer

    KR101111393B1

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    US20140368796A1