Realistic Eyeball Design for Emotional Expression in Service Robots
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Solution Overview
Problem
Conventional service robots and pet robots lack realistic and emotionally expressive eyes, failing to simulate the patterns and color changes of human or animal eyes.
Innovation Solution
A realistic eyeball design incorporating a display unit with a pupil and iris area, a convex lens unit, and a sensing unit, allowing for simulation of patterns and color changes unique to different animals and emotional expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple eye pattern or camera is used in conventional robots, then the device complexity is reduced and ease of manufacture is improved, but the realism and emotional expression capability of the eyes deteriorates
Solution Approach 1:
The patent combines multiple functional components into an integrated eyeball assembly: a display unit showing iris and pupil patterns, a convex lens unit for optical focusing, and a sensing unit for detecting external light. This merging of components achieves realistic eye appearance and emotional expression while maintaining manufacturability through modular integration.
Solution Approach 2:
The eyeball assembly serves multiple functions simultaneously: the display unit creates realistic iris and pupil patterns for visual appearance, the convex lens unit focuses light for both aesthetic realism and optical function, and the sensing unit detects external light to enable emotional expression through dynamic pattern changes. This multi-functionality resolves the contradiction by achieving high realism without proportionally increasing manufacturing complexity.
2Adaptability or versatility
If a display unit with multiple layers is used to simulate realistic eye patterns, then the emotional expression capability is improved, but the device complexity increases
Solution Approach 1:
The display unit dynamically changes the patterns and colors of the iris and pupil areas to express different emotions and states. By making the visual characteristics variable rather than fixed, the system achieves high emotional expression capability. The control unit adjusts these patterns in real-time based on sensing input, enabling adaptability without requiring multiple physical eyeball configurations.
Solution Approach 2:
The display unit utilizes color changes in the iris and pupil areas to convey different emotional states and eye conditions. By varying color patterns dynamically, the system achieves versatile emotional expression. This approach allows a single display unit to replace what would otherwise require multiple different eyeball designs, thereby managing device complexity while maximizing adaptability.
3Measurement precision
If penetration regions are added to the display unit for sensing functionality, then the sensing capability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The sensing unit is nested within the eyeball assembly structure, with penetration regions integrated into the display unit's pixel arrangement. The convex lens unit is positioned to optically couple with the sensing unit through these penetration regions. This nested integration allows precise sensing functionality to be achieved while the entire assembly is manufactured as a coordinated unit, managing alignment precision requirements through systematic integration rather than separate component assembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The realistic eyeball effectively simulates the appearance and emotional expressions of human or animal eyes, enhancing the robotic system's ability to interact and simulate real-life eye behavior.
Implementation Method 1
The convex lens unit is disposed on the display surface and covers the pupil area and the iris area... The sensing unit is disposed at the display unit and located corresponding to a position of the at least one penetration region
Data Source
AI summary
A realistic eyeball and a robot. The realistic eyeball includes a display unit, a convex lens unit and a sensing unit. The display unit has a display surface, which includes a pupil area and an iris area surrounding the pupil area. The pupil area or the iris area has at least one penetration region. The convex lens unit is disposed on the display surface and covers the pupil area and the iris area. The sensing unit is disposed at the display unit, and is located corresponding to the position of the at least one penetration region. The pupil area and the iris area have different patterns and colors according to different simulated animals.