Optical Component Center of Mass Alignment for Mounting Stability
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Solution Overview
Problem
In fiber-optic communications, the downsizing of optical components leads to instability due to a vertically elongated lens being prone to tilting and falling, as the center of mass shifts along the optical axis, making it difficult to maintain a stable mounting and assembly.
Innovation Solution
The design of an optical component with a transparent rectangular solid and a lens configuration where the center of mass aligns with the contact surface, incorporating projecting parts on both the bottom and top surfaces to increase stability and prevent tilting, allowing for precise adjustment and mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the lens is thinned in the optical axis direction to achieve narrower beam formation and short-focus, then the optical component size is reduced, but the component becomes unstable and prone to tilting and falling over
Solution Approach 1:
The patent applies asymmetry by making the transparent rectangular solid portion have a height-to-width ratio greater than 1, creating a vertically elongated stable base that compensates for the thinned lens profile. This asymmetric geometry provides a lower center of gravity and larger contact area with the mounting surface, preventing tilting and falling while maintaining the compact optical path length
Solution Approach 2:
The patent shifts the stability solution from the optical axis dimension to the transverse dimensions by increasing the height-to-width ratio in the plane perpendicular to the optical axis. This dimensional redistribution allows the lens to be thinned in the optical axis direction while maintaining overall stability through enhanced transverse geometry
2Stability of the object's composition
If protrusions are formed at the four corners of a rectangular lens to increase the mounting surface area and enhance adhesive fixation, then the mounting stability is improved, but the lens width increases which is not suitable for narrow spatial intervals in multichannel transmission
Solution Approach 1:
The patent applies local quality by concentrating the stability-enhancing features at specific locations (the rectangular solid portion with height-to-width ratio greater than 1) rather than adding protrusions throughout the lens. This localized geometric modification provides adequate mounting stability without increasing the overall lens width, enabling compatibility with narrow spatial intervals in multichannel transmission
Data Source
AI summary
An an optical component includes a transparent rectangular solid portion having a height-to-width ratio greater than 1 in a plane perpendicular to an optical axis of the transparent rectangular solid portion, and a lens provided to the transparent rectangular solid portion at one or both of a light incident side and a light exit side of the transparent rectangular solid portion. The transparent rectangular solid portion and the lens form a lens body having a first surface that includes a flat contact surface. A perpendicular line drawn from the center of mass of the lens body to the flat contact surface is coincident with or close to a line segment connecting the center of the flat contact surface and the center of mass of the lens body in a predetermined range.