Ambient Light Sensor on Lens Holder for Camera Assembly
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Solution Overview
Problem
Portable electronic devices, such as smartphones and tablets, face a design constraint where the presence of separate openings for camera assemblies and ambient light sensors reduce the screen ratio, leading to a poor user experience.
Innovation Solution
A camera assembly that integrates a lens holder, lens, circuit board, camera sensor, and ambient light sensor, where the ambient light sensor is disposed on or within the camera sensor or lens holder, allowing ambient light to be transmitted through the lens and light transmission channel for simultaneous detection by both sensors, thus eliminating the need for a separate opening for the ambient light sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate openings are provided for camera assembly and ambient light sensor, then both sensors can function independently, but the screen ratio is reduced and device integrity is compromised
Solution Approach 1:
The patent combines the ambient light sensor with the camera assembly by positioning the ambient light sensor on the camera sensor or lens holder, allowing both sensors to share a common opening. This merging eliminates the need for separate openings while maintaining independent functionality of both sensors.
Solution Approach 2:
The camera assembly structure is designed to serve multiple functions: it houses both the camera sensor for imaging and the ambient light sensor for light detection. The lens holder and light transmission channel are configured to allow light to reach both sensors simultaneously, making the single opening structure universal for both sensing functions.
2Reliability
If separate openings are provided for camera assembly and ambient light sensor, then both sensors can be positioned optimally, but the device structure becomes more complex and production costs increase
Solution Approach 1:
The patent merges the ambient light sensor into the camera assembly structure, positioning it on the camera sensor or lens holder. This integration reduces structural complexity by eliminating separate mounting structures and openings while maintaining optimal positioning for both sensors through shared light path geometry.
3Reliability
If separate openings are provided for camera assembly and ambient light sensor, then both sensors can detect light independently, but the manufacturing process becomes more difficult and costly
Solution Approach 1:
The patent combines both sensors into a single assembly that can be manufactured and assembled together as one unit. The ambient light sensor is positioned on the camera sensor or lens holder, allowing simultaneous light detection through the shared light transmission channel while simplifying the manufacturing process by reducing the number of separate components and assembly steps.
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 integration enhances the screen ratio by eliminating the need for an additional opening, improves the device's integrity, reduces production costs, and allows for efficient backlight luminance control, thereby enhancing user experience and power efficiency.
Implementation Method 1
Ambient light is transmitted through the lens and the light transmission channel, and is further incident into the camera sensor and the ambient light sensor
Implementation Method 2
camera sensor disposed correspondingly to the lens via the light transmission channel. Ambient light is transmitted through the lens and the light transmission channel, and is further incident into the camera sensor
Implementation Method 3
ambient light sensor disposed on the camera sensor or the lens holder. Ambient light is transmitted through the lens and the light transmission channel, and is further incident into the camera sensor and the ambient light sensor
Data Source
AI summary
A camera assembly is provided. The camera assembly includes a lens holder, a lens disposed in the lens holder, a circuit board, a camera sensor disposed on the circuit board, and an ambient light sensor electrically connected to the circuit board. The lens holder defines a light transmission channel, and the camera sensor is disposed correspondingly to the lens via the light transmission channel. The ambient light sensor is disposed on the camera sensor or the lens holder. Ambient light is transmitted through the lens and the light transmission channel, and is further incident into the camera sensor and the ambient light sensor. An electronic device having the camera assembly is further disclosed.