Detachable Chin Rest for Ophthalmologic Apparatus Stability

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Solution Overview

Problem

Existing ophthalmologic apparatuses lack sufficient support for the chin, leading to instability and discomfort for examinees during eye examinations, which can result in inaccurate and inefficient data acquisition.

Innovation Solution

A detachable chin rest device designed to be attached to an optical table or pedestal of an ophthalmologic apparatus, featuring a chin rest portion that extends to support the chin of the examinee, allowing for stable face support and adjustable positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a chin rest device is added to support the examinee's chin, then face support stability is improved, but device complexity increases

Engineering Contradiction:
Improveface support stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The chin rest device is designed as a separate, detachable unit that can be independently attached to the optical table or pedestal. This segmentation allows the chin rest functionality to be added without redesigning the entire ophthalmologic apparatus, thus improving face support stability while minimizing the increase in overall device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The chin rest device is designed to be universally compatible with different ophthalmologic apparatus configurations by providing attachment mechanisms that can be mounted on either an optical table or a pedestal. This multi-functionality allows the same chin rest device to serve multiple purposes and work with various system architectures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If the chin rest device is made detachable for easy attachment and detachment, then ease of operation is improved, but reliability may worsen

Engineering Contradiction:
Improveease of attachment and detachmentVSAvoidattachment reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The attachment mechanism is designed to be dynamically adjustable, allowing easy attachment and detachment when needed, while providing sufficient securing force when attached. The mechanism transitions between a easily engaged/disengaged state and a stable, reliable attached state, balancing ease of operation with attachment reliability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4548832A1Chin rest device and ophthalmologic apparatus
Publication Date: 2025.05.07 TOPCON CORPORATION
  • EP4548832A1 patent drawingFigure 1
  • EP4548832A1 patent drawingFigure 2
  • EP4548832A1 patent drawingFigure 3~4

AI summary

A chin rest device (18, 18A, 18B, 18C, 18D, 18E), wherein the chin rest device (18, 18A, 18B, 18C, 18D, 18E) is configured to be detachably attached to an optical table (12) or a pedestal, the optical table (12) of an ophthalmologic apparatus (100) is configured to acquire information about a subject eye (E), and the pedestal (30) is configured to support a measurement head (16, 31) for acquiring information about the subject eye (E) such that the measurement head (16, 31) is movable in horizontal and vertical directions. The chin rest device (18, 18A, 18B, 18C, 18D, 18E) comprises an attachment (181) that is configured to be detachably attached to the optical table (12) or the pedestal (30); and a chin rest portion (182) that is configured to extend from the attachment (181) toward a chin (C) of an examinee (P) to support the chin (C).