Actuating Apparatus Light-Transmitting Element Dust-Proof Sealing
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Solution Overview
Problem
Current projector designs require either larger dust-proof glass or additional dust-proof covers to maintain dust-proofing, both of which increase production costs.
Innovation Solution
An actuating apparatus with a light-transmitting element that seals the opening, reducing the need for additional components and allowing the existing dust-proof glass to maintain its size, thereby lowering production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dust-proof cover is added to the optical engine, then the dust-proof effect is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent combines the dust-proof function with the existing actuating apparatus structure by integrating a light-transmitting element into the frame body. This merges the dust-proof cover function into the existing component, eliminating the need for a separate dust-proof cover while maintaining the dust-proof effect.
Solution Approach 2:
The frame body is designed to serve multiple functions: it provides structural support for the actuating apparatus and simultaneously houses the light-transmitting element to achieve dust-proofing. This multi-functionality reduces the total component count while maintaining both actuation and dust-proof capabilities.
2Reliability
If the size of dust-proof glass is increased, then the dust-proof effect is improved, but the production cost increases
Solution Approach 1:
The patent applies local quality by positioning the light-transmitting element specifically at the opening where dust entry is most likely to occur. This localized approach provides effective dust-proofing only where needed, rather than increasing the size of dust-proof glass across the entire optical engine, thereby reducing material costs.
3Ease of manufacture
If the size of dust-proof glass is reduced to match the light path aperture, then the production cost is reduced, but the dust-proof effect deteriorates without a dust-proof cover
Solution Approach 1:
The light-transmitting element acts as an intermediary component that bridges the gap between the reduced-size dust-proof glass and the opening. It seals the gap while allowing light to pass through, maintaining both cost-effectiveness (smaller glass) and dust-proof reliability.
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 actuating apparatus achieves a dust-proof effect without increasing the size of the dust-proof glass or adding extra components, effectively reducing production costs for projectors.
Implementation Method 1
a light-transmitting element, and a drive assembly. The frame body includes a first frame portion, a second frame portion, and a shaft portion... The light-transmitting element is disposed on the second frame portion, and is located in the second opening to seal the second opening. The image light beam sequentially passes through the optical element located in the first opening and the light-transmitting element located in the second opening.
Data Source
AI summary
An actuating apparatus configured to allow an image light beam to pass through. The actuating apparatus includes a frame body, an optical element, a light-transmitting element, and a drive assembly. The frame body includes a first frame portion, a second frame portion, and a shaft portion. The first frame portion is connected to the second frame portion through the shaft portion. A through hole of the second frame has a first opening and a second opening. The optical element is disposed on the first frame portion and located in the first opening. The light-transmitting element is disposed on the second frame portion, and is located in the second opening to seal the second opening. The image light beam sequentially passes through the optical element and the light-transmitting element. The drive assembly is disposed on the frame body and drives the first frame portion to rotate with the shaft portion.