Removable Filter Holder Integrated in Camera Lens
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Solution Overview
Problem
Cameras with large image sensors face challenges with traditional low pass filter configurations, including susceptibility to color fringing, manufacturing defects, limited alternative use, and cumbersome filter replacement due to filters being designed for specific camera bodies and positioned behind the lens and in front of the image sensor.
Innovation Solution
A removable filter holder is integrated within the camera lens, allowing for the placement of filters closer to incoming light and enabling easy replacement and adjustment, designed according to the camera lens and body specifications, reducing color fringing and eliminating the need for large filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If filters are positioned behind the camera lens and in front of the image sensor, then filters can be attached to the camera body, but this results in color fringing and requires large filter sizes for large image sensors
Solution Approach 1:
The filter is extracted from its traditional position behind the lens and moved into the lens assembly itself. The removable filter holder integrates the filter within the lens structure, specifically positioning it to receive light before it enters the lens elements, thereby eliminating the optical path issues that cause color fringing when filters are placed behind the lens.
Solution Approach 2:
The filter holder is nested within the lens assembly, with the filter positioned inside the lens structure. The holder includes components that fit within the lens barrel, allowing the filter to be integrated into the existing lens architecture without requiring external attachments or modifying the camera body.
2Adaptability or versatility
If filters are designed according to camera body specifications, then filters can be properly positioned, but this limits alternative use and requires cumbersome replacement
Solution Approach 1:
The removable filter holder is designed with universal compatibility across different lens mounts. The holder includes a standardized attachment mechanism that can be adapted to various lens types, allowing the same filter holder and filter combination to be used across multiple lenses and even different camera bodies, thereby enabling filter reuse and eliminating the need for custom filters for each camera body.
Solution Approach 2:
The filter system is segmented into separable components: the removable filter holder and the filter itself. This segmentation allows the filter to be easily detached from the holder and replaced with different filters, while the holder remains attached to the lens. The holder can be removed entirely if needed, providing flexible maintenance and replacement capabilities.
3Ease of repair
If filters are attached behind the camera lens, then filters can be positioned in front of the image sensor, but this makes filter replacement cumbersome and limits accessibility
Solution Approach 1:
The filter holder is designed as a dynamic, removable component rather than a fixed attachment. The holder can be easily attached to and removed from the lens, and the filter can be quickly swapped within the holder. This dynamic design allows users to access and maintain filters without requiring disassembly of the lens or camera body, significantly improving accessibility and ease of maintenance.
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 solution reduces color fringing, allows for flexible filter use across different lenses, and simplifies maintenance by enabling easy filter removal and replacement within the camera lens, addressing the limitations of traditional filter configurations.
Implementation Method 1
a perimeter gasket coupled to the bottom surface of the upper flange
Implementation Method 2
a shaft coupled to the bottom surface of the upper flange and configured to extend along a guide mechanism into a slot in the camera lens body
Implementation Method 3
a filter setting configured to hold the removable filter
Data Source
AI summary
Disclosed herein are apparatus and system aspects for a removable filter holder. An aspect includes a camera lens body, camera lenses positioned within the camera lens body, slots along the camera lens body among the camera lenses, guide mechanisms positioned in the slots, and removable filter holders positioned in the slots along the guide mechanisms. The removable filter holders of this aspect include an upper flange that partially contacts the camera lens body via a bottom surface, a perimeter gasket coupled to the bottom surface of the upper flange, and a shaft coupled to the bottom surface of the upper flange. The shaft of this aspect includes a removable filter, a filter setting configured to hold the removable filter, and an arm that connects the upper flange to the filter setting.