Detachable External Flash for Front-Fill Lighting Coverage
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Solution Overview
Problem
The current camera-mounted flashes suffer from low brightness in certain areas due to the light-emitting surface being blocked by the lamp head, affecting photography imaging effects and user experience.
Innovation Solution
An external flash detachably mounted on the camera-mounted flash, with a light-transmitting window allowing light emission towards the front side, supplementing the lighting range and improving brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light-emitting surface of the lamp head faces upward for reflected lighting, then the lighting effect for specific photography scenarios is improved, but the brightness in areas directly in front of the flash is reduced due to blockage by the lamp head
Solution Approach 1:
The flash system is divided into two independent light sources: the original camera-mounted flash for reflected lighting and the external flash for direct lighting. This segmentation allows each light source to perform its specific function without interfering with the other, resolving the contradiction between reflected lighting effectiveness and front area brightness.
Solution Approach 2:
The external flash acts as an intermediary device that supplements the lighting function. It is mounted on the camera-mounted flash and provides additional direct light to the front area, mediating between the reflected lighting mechanism and the need for front area illumination.
2Illumination intensity
If the lamp head is tilted upward for reflected lighting, then specific photography lighting effects are achieved, but the light-emitting surface blocks light from reaching areas directly in front
Solution Approach 1:
The lighting function is segmented between the tilted lamp head (for reflected lighting effect) and the external flash with forward-facing light-transmitting window (for area coverage). This allows both the specific lighting effect and broad area coverage to be achieved simultaneously without compromise.
Solution Approach 2:
The external flash adds a new spatial dimension to the lighting system by providing light from a different orientation (front-facing) compared to the tilted lamp head. This dimensional addition expands the lighted area coverage while preserving the reflected lighting effect.
3Illumination intensity
If the camera-mounted flash uses reflected lighting by tilting the lamp head upward, then creative lighting effects are achieved, but brightness is insufficient in areas directly in front of the camera
Solution Approach 1:
The external flash unit is designed with multi-functionality, serving both as a direct light source for front area illumination and as a supplement to the reflected lighting system. This universal design allows a single additional component to address multiple lighting needs without significantly increasing overall system complexity.
Solution Approach 2:
The external flash is designed to be detachably mounted and electrically connected to the camera-mounted flash, allowing it to function autonomously while being triggered by the camera-mounted flash system. This self-service capability means the external flash independently provides the needed front area brightness without requiring complex control mechanisms.
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 lighting effects by supplementing the lighting range of the camera-mounted flash, ensuring improved user experience through enhanced brightness in previously dark areas.
Implementation Method 1
a light-transmitting window for light emission is provided on an outer side of the external flash, and light emitted by a light source in the external flash is emitted toward the front side of the external flash through the light-transmitting window
Data Source
AI summary
An external flash lamp and a flash lamp system. The flash lamp system comprises an external flash lamp and a set-top flash lamp. After the external flash lamp is detachably fixed to the set-top flash lamp, the external flash lamp can be electrically connected to the set-top flash lamp, so as to transmit a control signal and an operating current. The illumination range of the external flash lamp can supplement the illumination range of the set-top flash lamp, thereby solving the problem of low brightness of some areas.