Projection Optical Apparatus Damping Mechanism for Impact Resistance
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Solution Overview
Problem
Existing projectors with projection optical apparatuses face breakage issues due to uneven weight distribution and impact, as the center of gravity is often separate from the flange section, leading to increased load and potential breakage during handling or installation.
Innovation Solution
A projection optical apparatus with a damping mechanism supported by an image forming apparatus, featuring a first and second wall section that intersect the direction connecting the supported section to the center of gravity, and a damper that absorbs pressing force, reducing impact and stabilizing the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the center of gravity is located in a position separate from the flange section to increase the divergent angle of projected image light, then the projection performance is improved, but the projector becomes susceptible to breakage due to increased load and impact during handling
Solution Approach 1:
The patent introduces a damping mechanism including a damper and damping member positioned between the projection lens and the holder. This damping mechanism is pre-installed to absorb impact forces before they reach the flange section and holder, cushioning against breakage during handling and installation while allowing the center of gravity to remain separated from the flange section for optimal projection performance
2Illumination intensity
If the projection lens is made heavier to improve projection quality, then the image quality is enhanced, but the load on the holder and flange section increases, leading to potential breakage
Solution Approach 1:
The patent introduces a damping mechanism as an intermediary element between the projection lens and the holder. The damping member acts as a mediator that transmits the weight of the projection lens to the holder while simultaneously absorbing impact forces, thus allowing the use of heavier, higher-quality projection lenses without increasing the risk of breakage
3Stability of the object's composition
If the flange section is fixed rigidly to the holder for stability, then the structural stability is improved, but the projector becomes vulnerable to breakage under impact due to fixed torque
Solution Approach 1:
The patent replaces the rigid fixed connection with a dynamic damping mechanism. The damper and damping member create a flexible connection that allows controlled movement and absorbs impact forces, transforming the static rigid structure into a dynamic system that can adapt to impact forces while maintaining structural stability during normal operation
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 solution provides enhanced impact resistance and stability, preventing breakage of the projector components even when the center of gravity is separate from the supported section, allowing for increased divergent angle and direction change of image light.
Implementation Method 1
a damping mechanism that is supported by the image forming apparatus or the projection optical apparatus and absorbs a variation in torque between the image forming apparatus and the projection optical apparatus
Data Source
AI summary
A projection optical apparatus includes an optical system and a projection optic enclosure that accommodates the optical system. The optical system includes a first optical system on which the image light is incident, and the projection optic enclosure includes a first accommodation section that accommodates the first optical system and includes a flange section (supported section) supported by the image forming apparatus and a first wall section and a second wall section that face each other in a first direction (Y direction) that intersects the direction along a line that connects the flange section to the center of gravity of the projection optical apparatus.