Rotating Lighting Unit for White Background Photography
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating isolated images of objects require complex constructions like photo rooms or lengthy image editing to achieve a white background, which is inefficient and costly.
Innovation Solution
A lighting unit is rotated around an object or a turntable rotates the object, with cameras capturing images during long exposure to illuminate the background white, eliminating the need for physical enclosures and post-processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a photo room or tent with white walls is constructed to create isolated images, then a complete 360° white background is achieved, but the device complexity and construction cost increase significantly
Solution Approach 1:
The patent applies dynamics by making the lighting unit movable rather than constructing a static white room. The lighting unit rotates around the object on a circular path, dynamically illuminating different areas during the exposure time. This replaces the complex stationary white room construction with a simpler rotating lighting system that achieves the same background illumination effect.
Solution Approach 2:
The patent extracts the background illumination function from the physical white room structure. Instead of enclosing the object in a white room, the invention separates the background creation function into an independent rotating lighting unit that can be moved and positioned as needed, eliminating the need for permanent construction.
2Illumination intensity
If image editing software is used to remove the background after photography, then isolated images are achieved, but the loss of time and processing effort increase
Solution Approach 1:
The patent applies preliminary action by creating the white background effect during the image capture process itself, rather than attempting to remove or alter the background afterward. The rotating lighting unit illuminates the background area during exposure, pre-establishing the desired isolated image effect before the photo is taken, thus eliminating post-processing time.
3Illumination intensity
If long exposure photography is used to outshine distracting background content, then a white background effect is achieved, but the risk of overexposed areas in the image increases
Solution Approach 1:
The patent applies local quality by directing the lighting unit to illuminate specific local areas (the background region) rather than uniformly illuminating the entire scene. The lighting unit rotates and positions itself to selectively brighten only the background areas that need to appear white, while maintaining proper exposure for the object, thus preventing overall overexposure.
Solution Approach 2:
The patent uses periodic action through the rotational movement of the lighting unit around the object. The lighting unit periodically passes in front of different background areas during rotation, providing controlled illumination to each area in sequence during the exposure time, which distributes the light exposure evenly and prevents localized overexposure.
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 method allows for efficient, cost-effective creation of digital images with even illumination and 360° views without the need for physical white rooms or extensive editing, scalable for various object sizes.
Implementation Method 1
The lighting unit (1), in particular LED strips, fluorescent tubes or rod lights
Implementation Method 2
A camera (6), which is located inside, outside or on the circular path (3), is aimed at the object (2) and photographs it with a long exposure time
Data Source
Figure 1~2
Figure 3~4
AI summary
Method and apparatus for producing isolated images of an object, wherein the object is photographed by means of long exposure, while a lighting unit is moved in the background of the image and overexposes this background.