Disk Manipulator Light Guide and Reflector for Pitch Bend Feedback
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Solution Overview
Problem
Conventional electronic musical instruments lack effective visual feedback mechanisms for pitch bend control, limiting player visibility and engagement with the instrument's operation status.
Innovation Solution
A manipulator featuring a light source, a rotationally operable disk-shaped operation member with a light guide member that radially transmits light and a reflecting member to redirect light perpendicular to the radial direction, providing enhanced visual cues through the emission and reflection of light from LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source and light guide member are added to provide visual feedback, then player visibility and recognition of control state are improved, but device complexity increases
Solution Approach 1:
The light guide member is integrated into the operation member itself, merging the lighting function with the control element. This eliminates the need for separate lighting components and reduces overall device complexity while maintaining visual feedback capability.
Solution Approach 2:
The operation member serves multiple functions: it acts as both the control element for pitch bend and as a light guide for visual feedback. This multi-functionality reduces the total number of components needed in the manipulator.
2Area of stationary object
If light is emitted only in radial directions from the operation member, then the structure is simple, but the range of visibility is limited
Solution Approach 1:
The reflecting member redirects light from radial directions to axial directions (perpendicular to radial directions), adding a new dimension to light emission. This allows light to be visible from multiple angles and perspectives, expanding the effective emission area without complicating the basic light guide structure.
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
This configuration enhances player visibility by allowing light to be emitted and reflected in a wide range, enabling better recognition of the instrument's control state and operation status, thereby improving the overall user experience.
Implementation Method 1
a light guide member that guides light incident from the light source and transmits the light to an outside in radical directions
Implementation Method 2
a reflecting member reflecting a portion of the light guided by the light guide member in a direction perpendicular to the radial directions at said outer peripheral portion
Data Source
AI summary
A manipulator, comprises a light source that emits light; and an operation member rotationally operatable around an axis by a user, the operation member having a substantially disk shape and including a light guide member that guides light incident from the light source and emits the light to an outside in radical directions of the substantially disk shape from an outer peripheral portion thereof, and a reflecting member reflecting a portion of the light guided by the light guide member in a direction perpendicular to the radial directions at said outer peripheral portion.