Cinematography Lens Motor Mount With Actuated Quick Repositioning
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Solution Overview
Problem
Existing cinematography lens motor mounts require tedious and time-consuming adjustments during lens changes, often leading to motor disengagement due to inadequate clamping force and torque-induced flex, which can disrupt filming and waste valuable production time.
Innovation Solution
A motor mount with a dynamically articulating arm and actuator mechanism that allows for easy and secure engagement and disengagement of FIZ motors to and from the lens, eliminating the need to reposition the entire mount during lens changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor mount uses a fixed clamping mechanism to secure the motor to the lens, then the motor positioning stability is improved, but the time required for lens changes increases due to tedious adjustments
Solution Approach 1:
The clamp lever is designed to pivot between a first position for securing the motor and a second position for releasing the motor. This dynamic mechanism allows quick transition between clamped and unclamped states, enabling fast lens changes while maintaining secure motor positioning during operation.
2Reliability
If the motor mount applies high clamping force to prevent motor disengagement, then the motor security is improved, but the risk of torque-induced flex and gear disengagement increases
Solution Approach 1:
The clamp lever applies localized clamping force at the motor mounting points without transmitting excessive torque to the lens barrel. The force is concentrated at the clamping interface rather than being distributed throughout the entire motor mount structure, preventing gear disengagement while securing the motor.
3Adaptability or versatility
If the motor mount requires repositioning the entire mount during lens changes, then the motor can be realigned with the new lens, but the operational efficiency decreases
Solution Approach 1:
The motor mount is segmented into a stationary main body and a movable motor platform. The clamp lever selectively moves only the motor platform relative to the main body, allowing motor repositioning without moving the entire mount assembly. This segmentation enables quick adaptation to different lenses while maintaining operational efficiency.
4Ease of operation
If the motor mount uses a simple clamp mechanism for quick release, then the ease of operation is improved, but the clamping force may be inadequate to prevent motor disengagement
Solution Approach 1:
The release function is extracted as a separate action from the clamping function. The clamp lever pivots to a first position to apply clamping force and to a second position to release the motor. This separation allows the operator to quickly release the motor by simply pivoting the lever, while the clamping force remains sufficient when the lever is in the engaged position.
Data Source
AI summary
A motor mount for a cinematography lens of a camera is provided. A main body has a first end and an opposite second end, the first end configured to fixedly couple to a camera rod of the camera and the second end is configured to support a moveable arm. The arm is configured to support a motor for selective engagement with the cinematography lens. An actuator is supported on the main body proximate the second end. The actuator is coupled to the arm such that the motor is moveable via the actuator between at least a first position whereby the motor is disengaged with the cinematography lens and a second position whereby the motor is engaged with the cinematography lens and without movement of the main body on the camera rod.