Camera Assembly Infrared Interference Suppression
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Solution Overview
Problem
Conventional mobile phone camera systems experience water ripples in images due to interference from infrared signals when used with flicker detectors, which reduces photographing performance.
Innovation Solution
Incorporating an infrared laser module, a camera, a flicker detector, and a light-filtering piece that filters out infrared radiation before the flicker detector detects visible light frequencies, ensuring accurate detection and reducing image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flicker detector and camera are used in coordination to detect visible light frequency, then the photographing performance should be improved, but water ripples are still generated in the image due to infrared interference
Solution Approach 1:
The patent extracts and removes the harmful infrared component from the light detected by the flicker detector. By using an infrared filter to block infrared wavelengths while allowing visible light to pass through, the system eliminates the source of interference that causes water ripples in images, thereby improving photographing performance without sacrificing the coordination between the flicker detector and camera.
Solution Approach 2:
The patent introduces an infrared filter as an intermediary component between the light source and the flicker detector. This mediator selectively blocks infrared radiation while permitting visible light to reach the detector, thus resolving the contradiction by preventing infrared interference from affecting the visible light detection process.
2Measurement precision
If the flicker detector detects visible light frequency without filtering infrared, then the detection process is simple, but the detection accuracy is reduced due to infrared signal interference
Solution Approach 1:
The patent extracts the harmful infrared component from the detected light spectrum by implementing an infrared filter in the detection path. This removal of the interfering wavelength range enables the flicker detector to accurately measure visible light frequency without contamination from infrared signals, thereby improving measurement precision while adding only a single filter component to the system.
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 effectively eliminates water ripples in images captured by the camera, enhancing photographing performance by preventing infrared interference and improving the accuracy of visible light frequency detection.
Implementation Method 1
The light-filtering piece is configured to filter out infrared
Implementation Method 2
the flicker detector is configured to detect a frequency of visible light in external light filtered by the light-filtering piece
Implementation Method 3
Infrared emitted by the infrared laser module propagates to an outside of the camera assembly through the out-light surface
Data Source
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AI summary
This application provides a camera assembly and an electronic device. The camera assembly includes an infrared laser module, a camera, a flicker detector, and a light-filtering piece. The infrared laser module has an out-light surface. Infrared emitted by the infrared laser module propagates to an outside of the camera assembly through the out-light surface. The out-light surface of the infrared laser module, an in-light surface of the camera, and an in-light surface of the flicker detector face a same direction and are staggered from each other. The light-filtering piece covers the in-light surface of the flicker detector. The light-filtering piece is configured to filter out infrared. The flicker detector is configured to detect a frequency of visible light in external light filtered by the light-filtering piece. When the camera assembly is applied to the electronic device, photographing performance of the electronic device is relatively good.