Proximity Sensor Display Control for Interval Shooting Stability

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Solution Overview

Problem

Existing display control systems for cameras, such as digital cameras and smartphones, face challenges in interval shooting modes where the camera movement can cause image blurring or composition shifts due to the need to press buttons or touch screens to display images, leading to unintended camera position changes and interrupted shooting results.

Innovation Solution

A display control apparatus that uses a proximity sensor to detect user presence and switch the display on or off accordingly, keeping the display off in non-interval shooting modes and allowing it to turn on during interval shooting periods, reducing the likelihood of camera movement and maintaining the composition without requiring button presses or touch operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display is turned on by pressing a button or touching the screen during interval shooting, then the user can check the shooting status and images, but the camera may move causing image blurring or composition shifts

Engineering Contradiction:
Improvedisplay operationVSAvoidshooting stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces mechanical button pressing or touch screen operations with a proximity sensor-based detection system. The display is controlled to turn on automatically when the sensor detects an object (such as a user's hand or face) coming into proximity, eliminating the need for physical contact with the camera during interval shooting.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The proximity sensor acts as an intermediary between the user and the camera system. Instead of direct contact (button press or touch), the user's presence is detected through the sensor, which then triggers the display to turn on. This intermediary mechanism allows user interaction without physical contact that could disturb the camera position.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the display remains off during interval shooting to prevent camera movement, then shooting stability is maintained, but the user cannot check shooting status or images

Engineering Contradiction:
Improveshooting stabilityVSAvoidshooting status visibility
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The display state is made dynamic rather than static. The display automatically transitions between on and off states based on real-time proximity sensor detection. When an object approaches within a predetermined distance, the display turns on to show shooting status and images; when the object moves away, the display turns off to prevent camera movement. This dynamic adaptation resolves the contradiction between visibility and stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements feedback through the proximity sensor that continuously monitors the user's presence near the camera. This feedback loop allows the system to automatically adjust the display state according to actual usage conditions, ensuring the display is visible when needed while remaining off during critical shooting periods to maintain stability.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If manual button pressing is required to display images during interval shooting, then display control is precise, but the shooting position shifts and composition changes

Engineering Contradiction:
Improvedisplay controlVSAvoidcomposition stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent eliminates mechanical interaction (button pressing) by substituting it with a sensor-based detection system. The proximity sensor detects the user's presence and automatically controls the display, removing the mechanical action that causes camera movement and composition shifts during interval shooting.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system becomes self-service by automatically detecting user presence and controlling the display state without requiring manual intervention. The proximity sensor and control system work together to autonomously manage when the display should be visible, eliminating the need for users to press buttons that could disturb the camera position.

Inventive Principle:
Principle #25Self-service

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 minimizes camera movement and maintains the composition during interval shooting, ensuring stable and uninterrupted image capture by allowing the display to be turned on without manual intervention, thus reducing the risk of image blurring and composition shifts.

Implementation Method 1

a proximity sensor 75, which detects an object when the object comes into proximity

Methodology Applied
Scientific EffectProximity detection:

Data Source

PatentUS11252330B2Display control apparatus and control method therefor
Publication Date: 2022.02.15 CANON KK
  • US11252330B2 patent drawing
  • US11252330B2 patent drawing
  • US11252330B2 patent drawing

AI summary

A display control apparatus includes detection means (a proximity sensor 75) configured to detect that an object has approached, and control means (a system control unit 50) configured to perform control such that in response to the detection means detecting that the object has approached, a display of a first display unit (a monitor 28) is turned off. In a case where interval shooting or long exposure shooting is performed, the control means performs control such that in response to the detection means detecting that the object has approached (S411), the display of the first display unit is turned on (S413).