Follow Focus Controller Circuit with Expansion Module

Solution Overview

Problem

Current photographic devices require multiple follow focus controllers to manage lens drivers, leading to inconvenience and increased cost due to the need for separate controllers for each lens driver, making it difficult for a single person to operate and resulting in higher expenses.

Innovation Solution

A follow focus controller circuit with a main circuit and expansion circuits that allow a single controller to manage multiple lens drivers by detecting angular positions and processing signals, reducing the need for multiple control units and simplifying operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple lens drivers are installed to control focus and zoom, then the functionality and adaptability of the photographic device is improved, but the number of follow focus controllers increases, leading to higher cost and reduced ease of operation

Engineering Contradiction:

Improvelens control functionalityVSAvoidcontroller operation convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The follow focus controller is designed with a universal structure that can control multiple lens drivers through a single controller. The controller includes a main body with a first connector and an expansion structure with a second connector, where the expansion structure can be detachedly connected to the main body to enable control of additional lens drivers without requiring separate controllers for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The controller is divided into a main body and an expansion structure that can be detachably connected. The expansion structure contains additional detection units and connectors that can be added based on the number of lens drivers, allowing the system to scale from controlling one lens driver to multiple lens drivers through modular addition rather than requiring completely separate controllers.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple lens drivers are installed to control focus and zoom, then the functionality and adaptability of the photographic device is improved, but the cost increases due to the need for multiple separate controllers

Engineering Contradiction:

Improvelens control functionalityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The follow focus controller is designed with a universal structure that can control multiple lens drivers through a single controller. The controller includes a main body with a first connector and an expansion structure with a second connector, where the expansion structure can be detachedly connected to the main body to enable control of additional lens drivers without requiring separate controllers for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple control functions for different lens drivers are merged into a single controller unit. Instead of having separate controllers for each lens driver, the invention combines multiple detection units, connectors, and control circuits into one integrated controller that can manage multiple lens drivers, thereby reducing the total number of controllers needed and lowering manufacturing costs.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a single follow focus controller is used to control multiple lens drivers, then the ease of operation and cost are improved, but the device complexity increases due to the need for expansion circuits

Engineering Contradiction:

Improvecontroller operation convenienceVSAvoidcontroller circuit complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The controller is divided into a main body and an expansion structure that can be detachably connected. The expansion structure contains additional detection units and connectors that can be added based on the number of lens drivers, allowing the system to scale from controlling one lens driver to multiple lens drivers through modular addition rather than requiring completely separate controllers.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The expansion structure is designed to be nested within or attached to the main body of the controller. The expansion structure contains detection units and connectors that can be integrated into the existing controller architecture, allowing additional functionality to be added without completely redesigning the controller, thus managing complexity through hierarchical integration.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS20250093748A1Follow focus controller circuit, follow focus controller and photographic system

Publication Date: 2025.03.20 SHENZHEN LEQI INNOVATION CO LTD

AI summary

A follow focus controller circuit, a follow focus controller and a photographic system are disclosed. The follow focus controller circuit includes a main circuit and at least one expansion circuit. The main circuit includes a main control unit, a first detection unit, a transmission unit and at least one first connector. The main control unit is electrically connected to the first detection unit, the transmission unit and the first connector. The expansion circuit includes a second detection unit and a second connector, the second detection unit is electrically connected to the second connector, and the second connector is electrically connected to the first connector. The first detection unit and each second detection unit detect angular positions of rotary adjustment members and transmit detection signals to the main control unit. The main control unit processes the detection signals individually and outputs the processed signals through the transmission unit.