Lens Mount Groove Filter Attachment for Wide-Angle Stereoscopic Imaging
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Solution Overview
Problem
Existing lens systems for stereoscopic imaging struggle to capture images with an angle of view higher than 180 degrees without compromising optical performance and dust-proof/drip-proof integrity, due to manufacturing errors and non-uniform gaps between openings and lenses, which affect appearance quality and optical alignment.
Innovation Solution
A lens mount with a cover member and holder system that includes orthogonal openings and a groove portion for filter attachment, allowing for adjustable positioning and secure attachment of filters without direct engagement, maintaining optical performance and dust-proof/drip-proof capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If diameter engagement is used between opening and lens to correct position offset, then appearance quality is improved, but optical performance deteriorates due to lens position offset correction
Solution Approach 1:
The patent divides the holding structure into two separate components: the cover member with openings and the lens barrel. This segmentation allows the openings to be positioned precisely in the cover member while the lens barrel can be independently adjusted, avoiding the need for diameter engagement that would constrain lens positioning and affect optical performance.
Solution Approach 2:
The patent extracts the positioning function from the opening-lens interface by providing separate positioning structures: the cover member positions the openings, while the lens barrel has its own positioning mechanism. This extraction allows each component to be optimized independently, preventing the trade-off between appearance quality and optical performance.
2Adaptability or versatility
If two openings are provided in parallel for stereoscopic imaging, then stereoscopic capability is achieved, but angle of view is shielded by filter holding structures
Solution Approach 1:
The patent transitions from a planar filter holding approach to a three-dimensional groove structure that extends along the optical axis. The groove portion allows filters to be held in a manner that does not protrude into the angle of view path, enabling stereoscopic imaging with over 180 degrees field of view while maintaining filter attachment capability.
Solution Approach 2:
The filter is nested within the groove portion formed between the cover member and holder, allowing the filter to be held in a recessed position that does not interfere with the wide angle of view required for stereoscopic imaging.
3Strength
If filter holder is manufactured as single component, then structural integrity is improved, but molding becomes difficult due to long openings and filter attachment becomes difficult due to elongated filter shape
Solution Approach 1:
The patent divides the filter holding system into multiple components: the cover member, the holder, and the filter itself. This segmentation transforms the manufacturing challenge of a single complex component into simpler, more manufacturable parts that can be assembled, while still providing structural integrity through the coordinated design of the groove portion and holding structures.
Data Source
AI summary
A lens mount includes a cover member and a holder. The cover member has a first opening corresponding to a first optical system of a lens apparatus and has a second opening corresponding to a second optical system of the lens apparatus. The holder holds a filter to cover the first opening and the second opening. The holder includes a first holder disposed on one side with respect to the first and second openings in a direction orthogonal to an arrangement direction of the first and second openings, and a second holder disposed on the other side with respect to the first and second openings in the direction orthogonal to the arrangement direction. A groove portion is formed between the cover member and the holder, and the filter is insertable into the groove portion.