Camera Flash Lampshade with Concentric Rings and Scattering Apertures
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Solution Overview
Problem
Conventional electronic devices with single-sided LED flash lamps suffer from insufficient and uneven filling light, particularly in dark environments, impacting photography quality.
Innovation Solution
A capturing apparatus featuring a lampshade with concentric inner and outer ring portions, multiple flash lamps arranged around the camera with equal arc lengths, and scattering apertures to distribute and focus light uniformly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single flash lamp is used at a side of the camera, then the device complexity is reduced, but the illumination intensity and uniformity deteriorate
Solution Approach 1:
The flash lighting system is segmented into multiple flash lamps (at least two) positioned at different locations around the camera, with each lamp having its own independently controllable flash controller. This segmentation allows each lamp to contribute to the overall illumination, achieving higher intensity and better uniformity compared to a single lamp, while maintaining manageable device complexity through modular architecture.
Solution Approach 2:
Multiple flash lamps are merged into a coordinated lighting system where all lamps work simultaneously to provide combined illumination. The lampshade structure merges the light paths from multiple lamps, and the flash controllers are merged into a unified control system that coordinates the firing of multiple lamps to achieve superior filling light effect that no single lamp could provide alone.
2Illumination intensity
If multiple flash lamps are arranged around the camera periphery, then the illumination uniformity is improved, but the device complexity increases
Solution Approach 1:
The flash lamps are arranged asymmetrically around the camera periphery rather than in a simple linear or grid pattern. This asymmetric arrangement optimizes light distribution by positioning lamps at specific angular intervals that account for the camera's optical geometry, achieving uniform illumination across the scene while avoiding the complexity of symmetric multi-lamp configurations.
Solution Approach 2:
The flash lamps are positioned in a three-dimensional space around the camera, utilizing angular and radial dimensions rather than just a linear array. This spatial arrangement in multiple dimensions allows light to reach the scene from various angles, improving uniformity while the lampshade structure consolidates this complexity into a manageable form factor.
3Illumination intensity
If the light-emitting area is increased, then the filling light effect is improved, but the device size increases
Solution Approach 1:
The flash lamps and lampshade are nested within the device housing, with the lampshade itself nested around the camera module. This nested arrangement allows multiple light sources to be packed into a compact volume, increasing the effective light-emitting area without proportionally increasing the overall device footprint, as components share space efficiently in a hierarchical nesting structure.
Solution Approach 2:
The lampshade employs curved, spheroidal surfaces to redirect and distribute light from multiple flash lamps. This curved geometry allows light to be reflected and scattered in multiple directions, effectively increasing the illuminated area without requiring additional linear space, as the curvature packs light-distributing surface area into a compact three-dimensional form.
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
Enhances light intensity and uniformity, improving the filling light effect and photographic quality in low-light conditions by increasing the light-emitting area and ensuring even light distribution.
Implementation Method 1
The outer ring portion can be transparent and provided with a plurality of scattering parts arranged in a one-to-one correspondence with the plurality of flash lamps. Each scattering part may include a plurality of first circular scattering apertures arranged concentrically.
Data Source
AI summary
A capturing apparatus for an electronic device is provided in the present disclosure. The capturing apparatus for an electronic device may include a lampshade, a camera and a number of flash lamps. The lampshade may include an inner ring portion and an outer ring portion arranged concentrically. An inner rim of the outer ring portion may be connected with an outer rim of the inner ring portion. The camera may be located at a side of the lampshade and corresponding to a hollow area defined by the inner ring portion and positioned at a side of the inner ring portion away from the outer ring portion. A plurality of flash lamps may be disposed at a side of the lampshade close to the camera around a periphery of the camera and corresponding to the outer ring portion.