Integrally Formed Biprism Module Eliminates Optical Adhesive Flare
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Solution Overview
Problem
In wide-angle photography, the biprism structure used for image acquisition often experiences issues like flare due to optical adhesive-related problems such as bubbles, uneven application, and refractive index differences between the adhesive and prisms, leading to image distortion and deformation of light-incident surfaces.
Innovation Solution
A compound prism module is introduced, where two prisms are integrally formed with coplanar light-incident surfaces and reflective surfaces, connected via a prism holder with a high rigidity coefficient, eliminating the need for optical adhesive and thus avoiding flare and maintaining surface flatness, while allowing for cost-effective production using optical plastics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If two prisms are connected by optical adhesive to form a biprism structure, then the width of the structure is reduced, but bubbles, uneven adhesive application, and refractive index differences cause flare and image distortion
Solution Approach 1:
The patent merges two separate prisms into a single integrally formed biprism structure. This eliminates the interface between prisms that would require optical adhesive, thereby preventing bubbles, uneven adhesive application, and refractive index mismatches that cause flare and image distortion. The integral structure ensures optical continuity and eliminates the harmful effects associated with adhesive bonding.
Solution Approach 2:
The patent extracts and eliminates the optical adhesive from the system by forming the biprism structure integrally. By removing the adhesive layer that causes optical interference and structural instability, the invention directly addresses the source of flare and image distortion while maintaining the compact width of the biprism structure.
2Strength
If optical adhesive is used to connect prisms, then the prisms are joined together, but the adhesive causes medium change and light refraction resulting in flare
Solution Approach 1:
The patent combines the two prisms into a single integral structure, eliminating the need for optical adhesive. This merging approach maintains the structural connection between prisms while removing the adhesive medium that causes light refraction and flare, thereby solving both the adhesion and optical quality issues simultaneously.
Solution Approach 2:
The patent converts the potential harm of having a prism connection interface (which would require adhesive) into a benefit by making the connection integral. This eliminates the adhesive-related harmful effects (flare, refraction) while maintaining or even improving the structural integrity and optical performance of the prism assembly.
3Strength
If optical adhesive is applied unevenly, then the prisms are connected, but the light-incident surface becomes bent and deformed
Solution Approach 1:
The patent merges the two prisms into an integral structure, eliminating the adhesive application process entirely. This ensures that the light-incident surface maintains its intended flatness and precision without being affected by uneven adhesive application, while still achieving strong structural connection between the prism sections.
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 integrally formed biprism structure effectively reduces flare and deformation, ensuring high-quality image acquisition with reduced production costs by eliminating the need for optical adhesives and maintaining the flatness of light-incident surfaces.
Implementation Method 1
The first prism includes a first light-incident surface, a first reflecting surface, and a first light-emergent surface connected to each other
Implementation Method 2
the first light-incident surface and the second light-incident surface are connected to each other and are coplanar
Data Source
AI summary
A compound prism module is provided, including a first prism and a second prism. The first prism includes a first light-incident surface, a first reflecting surface, and a first light-emergent surface connected to each other, where the first light-incident surface and the first light-emergent surface are connected to each other on a first side edge. The second prism includes a second light-incident surface, a second reflecting surface, and a second light-emergent surface connected to each other, where the second light-incident surface and the second light-emergent surface are connected on a second side edge. The first light-incident surface and the second light-incident surface are connected to each other and are coplanar, the first reflecting surface and the second reflecting surface are connected on a third side edge, there is a spacing between the third side edge and a connection between the first light-incident surface and the second light-incident surface.