Rotating Lens Protection Disk for Camera Matte Box

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Solution Overview

Problem

Current lens protection devices are not easily attachable to camera housings like matte boxes, requiring substantial conversion work and are cumbersome when changing optical accessories such as filters.

Innovation Solution

A lens attachment device with a holding frame that simplifies the mounting of a rotating disk protection device onto camera housings, allowing for easy attachment to matte boxes and reducing weight, while enabling fast conversion of accessories and incorporating a mechanical closure for cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a rotating disk lens protection device is used, then particles such as rain or snow are effectively repelled from the lens, but the installation and operation of additional components like matte boxes becomes complicated and requires substantial conversion work

Engineering Contradiction:

Improveparticle adhesion to lensVSAvoidinstallation complexity of matte box

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines the lens protection device with the matte box into a single integrated unit. The rotating disk is mounted within the matte box structure, eliminating the need for separate installations and conversions. This merging resolves the technical contradiction by maintaining particle repulsion functionality while simplifying the overall device structure and installation process.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated design allows the device to perform multiple functions simultaneously: the matte box provides both optical quality control (by blocking stray light) and lens protection (through the rotating disk that repels particles). This multi-functionality eliminates the need for separate protective devices and reduces installation complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If a rotating disk lens protection device is used, then lens protection from rain and snow is achieved, but substantial conversion work is necessary when changing optical lens attachments such as filters

Engineering Contradiction:

Improvelens protection from rain and snowVSAvoidtime for changing lens attachments

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The device is designed with modular components where the rotating disk assembly can be independently removed and replaced. The matte box structure is divided into segments that allow quick access to the disk and filter elements, enabling rapid changes without substantial conversion work when switching between different optical attachments.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The rotating disk is designed to be easily removable and replaceable, allowing dynamic reconfiguration of the optical system. The quick-release mechanism enables users to rapidly swap between different disk configurations or remove the protection device entirely when changing lens attachments, significantly reducing the time required for such operations.

Inventive Principle:

Principle #15Dynamics

3Object-affected harmful factors

If a rotating disk is attached to camera housing via carriers, then the disk is arranged in front of the camera for protection, but the device weight increases substantially

Engineering Contradiction:

Improvelens protectionVSAvoiddevice weight

Core Design Contradiction:

Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

By merging the lens protection function with the existing matte box structure, the patent eliminates the need for separate protective devices and their associated mounting carriers. The integrated design uses the matte box's own structure to support the rotating disk, thereby reducing overall device weight while maintaining effective lens protection.

Inventive Principle:

Principle #5Merging (Combining)

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 facilitates easy installation and operation of lens protection devices, reduces the weight of camera housings, and allows for rapid conversion of accessories, while maintaining image quality by using a rotating glass disk that can operate at high speeds and influence image properties.

Implementation Method 1

all approaching particles are hurled away in the direction of the circumference of the disk by the centrifugal force produced by the rotating glass disk

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

enabling larger disk diameters and optical effects like polarization filtering

Methodology Applied

Scientific EffectOptical filtering: Filter (optical)

Data Source

PatentUS8727544B2Lens adapter device, particularly lens protecting device

Publication Date: 2014.05.20 AMBROZIC IVO

AI summary

A lens attachment device is provided for use with a camera having a housing, the housing having at least one modular insert compartment, wherein each modular insert compartment is adapted to receive an insert having an optical device. The lens attachment device includes a lens protection device having a circumferential surface, a holding frame adapted to fit within the modular insert compartment of the housing. The holding frame holds the lens protection device. The lens attachment device further includes a motor housing for containing an electromechanical drive, and a drive wheel operable to rotate the lens protection device, wherein the electromechanical drive is operable to rotate the drive wheel.