Ophthalmic Apparatus Jaw Rest Notification System

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Solution Overview

Problem

Conventional ophthalmic apparatuses cause anxiety in examinees due to sudden movements of the jaw rest during height adjustments, which can surprise the examinee and lead to discomfort or injury.

Innovation Solution

An ophthalmic apparatus with a face support part, human detection part, and notification part that detects whether the examinee's face is properly supported and announces adjustments to the examiner or examinee, allowing for controlled and smooth alignment of the optometric part with the examinee's eye, reducing sudden movements and anxiety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the jaw rest is adjusted manually to align the optometric part with the examinee's eye, then the alignment precision is improved, but the examinee experiences anxiety and surprise due to sudden movements

Engineering Contradiction:
Improvealignment precisionVSAvoidexaminee anxiety
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The notification part announces the upcoming adjustment of the jaw rest before the adjustment actually occurs. This preliminary notification allows the examinee to mentally prepare for the movement, reducing surprise and anxiety while maintaining the necessary alignment precision through controlled manual adjustment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback through the notification part that communicates the adjustment status to the examinee. This feedback mechanism creates a transparent interaction where the examinee is informed about the adjustment process, reducing anxiety while the examiner maintains control over the alignment precision

Inventive Principle:
Principle #23Feedback

2Productivity

If the jaw rest is adjusted quickly to save time, then the productivity is improved, but the examinee experiences discomfort and surprise from rapid movements

Engineering Contradiction:
Improveexamination efficiencyVSAvoidexaminee discomfort
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

By announcing the adjustment beforehand, the system allows the jaw rest to be moved at an appropriate speed without causing discomfort. The preliminary notification decouples the speed of adjustment from the surprise factor, enabling efficient adjustments while maintaining examinee comfort

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The notification part acts as an intermediary between the adjustment mechanism and the examinee. It mediates the interaction by providing advance information about the adjustment, allowing the jaw rest to move efficiently without transmitting sudden movements that would cause discomfort or surprise

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12048482B2Ophthalmic apparatus
Publication Date: 2024.07.30 NIDEK CO LTD
  • US12048482B2 patent drawing
  • US12048482B2 patent drawing
  • US12048482B2 patent drawing

AI summary

An ophthalmic apparatus for examining an examinee's eye, comprising a face support member to support an examinee's face, a human detection member to detect whether or not the face is supported by the face support member, a notification member to give an announcement to an examinee or an examiner, and a control member to control the notification member based on a detection result of the human detection member.