Infrared Sensor Shutter Control for Portable Camera Shake Reduction
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Solution Overview
Problem
Portable devices with high-pixel-density cameras face image quality deterioration due to shaky hands or apparatus shakes when using a shutter release button, and users may find it inconvenient to operate with auxiliary devices.
Innovation Solution
A photographing method and apparatus using an infrared sensor that allows picture-taking without pressing a shutter release button by emitting and receiving infrared rays, detecting resistance changes, and generating a photographing signal based on these changes to control the camera module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a shutter release button is used to control the camera module, then the camera can be operated to take pictures, but image quality deteriorates due to shaky hands or apparatus shakes
Solution Approach 1:
The patent replaces the mechanical shutter release button system with an optical/infrared sensing system. The infrared sensor detects infrared rays emitted by the user's hand or body, and the controller automatically triggers the camera shutter based on this detection, eliminating the need for mechanical button pressing that causes hand shake and image blur.
Solution Approach 2:
The patent introduces an infrared sensor as an intermediary between the user and the camera shutter. Instead of direct mechanical contact through a button, the infrared sensor mediates the triggering process by detecting infrared radiation from the user's hand proximity, thereby eliminating direct mechanical interaction that causes shaking.
2Manufacturing precision
If an auxiliary device like a remote controller is used to take pictures, then picture-taking can be achieved without direct button pressing, but the operation becomes inconvenient and unfamiliar to users
Solution Approach 1:
The patent makes the camera system self-service by using the user's own body (hand or body heat emitting infrared rays) as the trigger mechanism. The infrared sensor detects the user's proximity or hand gesture automatically, eliminating the need for external remote controllers or complex operation procedures, making the system both high-quality and user-friendly.
3Manufacturing precision
If high-pixel-density image sensors are used to increase resolution, then picture quality improves, but the device becomes more sensitive to hand shakes and apparatus shakes
Solution Approach 1:
The patent replaces mechanical shutter release operation with automatic infrared-triggered shutter operation. This substitution eliminates the mechanical pressing action that transmits vibration to the camera body, thereby protecting the high-pixel-density sensor from shake-induced image degradation while maintaining or improving picture quality.
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
Minimizes image quality deterioration from shaky hands or apparatus shakes, providing a convenient operation method by allowing picture-taking through obstructing an infrared sensor, eliminating the need for physical button pressing.
Implementation Method 1
an infrared sensor unit for determining if emitted radiation is at least partially obstructed by emitting and receiving an infrared ray
Implementation Method 2
detecting a resistance value changed depending on the received infrared ray
Data Source
AI summary
Disclosed is a photographing apparatus using an infrared ray in a portable terminal, the apparatus includes: a camera module for photographing an image; a display unit for providing a preview for the image photographed by the camera module; and an infrared sensor unit for determining if light is obstructed by emitting and receiving an infrared ray through an infrared sensor upon photographing by the camera module, and outputting a photographing signal for the image.