Camera Testing Box Mask and Diffusion Sheet for Flare Reduction
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Solution Overview
Problem
The accuracy of testing optical lens quality is compromised due to light reflection from objects within the testing box, such as turntables, screws, and circuit boards, which causes flares in captured photos.
Innovation Solution
A camera-testing box design featuring a light diffusion sheet, photographic film with patterned and non-patterned areas, and a mask with transparent and shielding areas is used to control light distribution, reducing reflections and ensuring uniform brightness for accurate optical property testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source is used to illuminate the picture in the testing box, then the picture can be properly illuminated for capture, but light reflects off other objects (turntables, screws, circuit boards) causing flares that reduce testing accuracy
Solution Approach 1:
A light diffusion sheet is introduced as an intermediary component between the light source and the objects in the testing box. This diffusion sheet scatters and softens the light before it reaches the picture and other objects, reducing direct reflections and flares while maintaining adequate illumination for accurate optical lens testing
Solution Approach 2:
A mask with light-blocking portions is used to extract or remove harmful reflected light paths from the testing environment. The mask selectively blocks light reflections from objects like turntables, screws, and circuit boards that would otherwise cause flares and reduce testing accuracy
2Adaptability or versatility
If objects such as turntables, screws, and circuit boards are present in the testing box for functional testing, then the device can be tested in a realistic environment, but these objects reflect light causing flares that compromise photo quality
Solution Approach 1:
The light diffusion sheet serves as a mediator that allows the testing environment to remain realistic with all necessary objects present, while simultaneously diffusing light to minimize harmful reflections from these objects during the optical testing process
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 minimizes light reflections onto the photographic film, enhancing the accuracy of optical lens testing by maintaining uniform brightness and reducing flare effects, thereby improving the reliability of test results.
Implementation Method 1
a light diffusion sheet, wherein the light diffusion sheet is spaced apart from the light source and the photographic film
Implementation Method 2
a mask, wherein the mask is disposed on the photographic film and the mask includes a transparent area and a shielding area
Data Source
AI summary
A camera-testing box for testing optical properties of an image-capturing device includes a box body, a light source, a photographic film, a mask, and a base. The light source is disposed inside the light-free box body. The photographic film is disposed on a side of the light source inside the box body. The mask is disposed on a side of the photographic film away from or facing the light source, and the mask includes a transparent area and a shielding area to reduce flare-causing light reflected by screws and other extraneous objects in the camera-testing box. The base is disposed inside the box body, and on a side of the mask away from the light source. The base supports the to-be-tested image-capturing device.