Optical Unit Holder Integrating Lens and Wheel for Precision
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Solution Overview
Problem
Existing optical units for light source apparatuses face challenges in accurately positioning the lens and wheel with a light emitter, leading to inefficiencies in light collection and emission, particularly in miniaturization and precision.
Innovation Solution
An optical unit comprising a wheel portion with a light emitter excited by a specific wavelength range, a lens portion for collecting synthetic light, and a holder portion that supports both as a unified unit, allowing for precise and simplified positioning of the lens and wheel, with the lens emitting light along a predetermined optical axis and the motor's rotation axis aligned for efficient light guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lens and wheel are positioned separately using individual mounting structures, then the positioning accuracy can be improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent integrates the lens mounting structure and wheel mounting structure into a single unified holder structure. The holder includes a holder body with a lens holding portion and a wheel holding portion that are integrated as one piece, eliminating the need for separate mounting structures. This merging maintains positioning accuracy while reducing device complexity and manufacturing difficulty.
2Volume of moving object
If the optical unit is miniaturized, then the overall size is reduced, but the positioning precision of the lens and wheel becomes more difficult to achieve
Solution Approach 1:
By integrating the lens and wheel mounting into a single unified holder structure, the patent enables miniaturization of the optical unit while maintaining positioning precision. The integrated design reduces the overall space required for mounting mechanisms, and the precise positioning is achieved through the coordinated design of the lens holding portion and wheel holding portion within the compact holder body.
Solution Approach 2:
The patent positions the wheel's light emitter at a location offset from the optical axis of the lens, creating a staggered arrangement. This dimensional optimization allows the light emitter to be positioned below the center line passing through the lens center in the vertical direction, enabling compact positioning while maintaining effective light collection geometry.
3Productivity
If the lens is positioned close to the light emitter, then the light collection efficiency is improved, but the positioning accuracy becomes more critical and difficult to achieve
Solution Approach 1:
The integrated holder structure brings the lens and wheel into close proximity, optimizing the distance between the light emitter and lens for efficient light collection. The unified design ensures that both components are positioned accurately relative to each other, maintaining high positioning accuracy despite the reduced distance.
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 enables highly accurate and simplified positioning of the lens and wheel, enhancing light collection efficiency and allowing for miniaturization of the optical unit, thereby improving the performance and compactness of light source apparatuses.
Implementation Method 1
a light emitter that is excited by light of a predetermined wavelength range and emits visible light having a longer wavelength range than the light of the predetermined wavelength range
Implementation Method 2
at least one lens that collects the synthetic light emitted from the wheel portion and a light emitting surface that emits the collected synthetic light
Data Source
AI summary
Provided is an optical unit including: a wheel portion including a wheel in which a light emitter that is excited by light of a predetermined wavelength range and emits visible light having a longer wavelength range than the light of the predetermined wavelength range is provided and a motor that drives the wheel, the wheel portion being configured to emit synthetic light including the light of the predetermined wavelength range and the visible light from the light emitter; a lens portion including at least one lens that collects the synthetic light emitted from the wheel portion and a light emitting surface that emits the collected synthetic light; and a holder portion configured to support the wheel portion and the lens portion as one unit.