Electrically Controlled Camera Matte Box Filter Mounting
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Solution Overview
Problem
Conventional camera matte boxes are limited in functionality and flexibility, with complex and bulky filter mounting mechanisms that add weight and restrict compatibility with different lens and filter sizes, impacting photographer efficiency.
Innovation Solution
A camera matte box with an electrically controlled adjustable filter, featuring a motorized filter control module, a changeable lens adapter, and a filter holder that allows for easy installation and adjustment of filters, enabling compatibility with various lens and filter sizes and providing flexible imaging effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional drawer frame or thread-locking mechanism is used to mount filters, then filter mounting is achieved, but the mechanism becomes complicated and bulky, adding heavy load on camera and lens
Solution Approach 1:
The patent extracts the filter mounting function from the bulky drawer frame or thread-locking mechanism, implementing it through a lightweight magnetic attachment system. The magnetic filter holder can be easily attached to and removed from the matte box body without complex mechanical structures, significantly reducing the weight and complexity while maintaining secure filter mounting capability.
Solution Approach 2:
The patent replaces traditional mechanical mounting mechanisms (drawer frames, thread-locking) with a magnetic field-based attachment system. The magnetic filter holder uses magnetic attraction to secure filters to the matte box body, eliminating the need for heavy mechanical structures and reducing the overall weight on the camera and lens assembly.
2Reliability
If conventional matte box is used, then light shielding and protection are provided, but flexibility in filter sizes and mounting types is limited
Solution Approach 1:
The patent implements a universal magnetic filter holder system that can accommodate multiple filter sizes and types through a single standardized mounting interface. The magnetic attachment mechanism works with various filter dimensions (e.g., 4×5.65 inch, 6×6 inch, 4×4 inch), allowing the same matte box structure to serve multiple filtering needs without requiring separate mounting mechanisms for each filter type.
Solution Approach 2:
The patent introduces dynamic adjustability through the magnetic filter holder, which allows filters to be easily attached, detached, and repositioned. The magnetic connection provides flexible mounting that can adapt to different filter configurations and orientations, enabling the matte box to dynamically accommodate various imaging requirements while maintaining reliable light shielding and protection.
3Device complexity
If conventional matte box with fixed filter mounting is used, then structure is simplified, but ease of adjustment and compatibility with different lenses is reduced
Solution Approach 1:
The patent segments the filter mounting system into independent modular components: a magnetic filter holder that can be separately attached to the matte box body, and interchangeable lens adapters. This segmentation allows the filter holder to be independently positioned and adjusted, and enables compatibility with different lens types through the adapter interface, while keeping the overall matte box structure relatively simple.
Solution Approach 2:
The patent introduces an intermediary lens adapter mechanism that facilitates compatibility between the matte box and various lens types. The adapter serves as a mediator with standardized interfaces that can connect to different lens specifications, allowing easy adjustment and compatibility without complicating the core matte box structure. The magnetic filter holder also acts as an intermediary that simplifies filter attachment while enabling flexible positioning.
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 enhances operational efficiency by reducing weight and stress on the camera and lens, allowing for easy adjustment of filters and compatibility with multiple filter and lens sizes, thereby improving shooting efficiency and flexibility.
Implementation Method 1
an electrical filter control module configured to adjust a position of the adjustable filter
Implementation Method 2
The motor output includes a gear that meshes with a gear of the adjustable filter. The motor output may be configured to rotate the adjustable filter for a predetermined degree
Data Source
AI summary
A camera matte box electrically controls an adjustable lens filter. The camera matte box includes a body, at least one adjustable flap, a filter holder, a changeable lens adapter, and an electrical filter control module. The electrical filter control module adjusts a position of the adjustable filter according to a command received using a communication interface. The filter holder removably holds the adjustable filter and a non-adjustable filter in the body.