Camera Light Adjustment Module with Inclined Surfaces
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Solution Overview
Problem
The existing method of using insertion-type light emitting elements in cameras, which requires bending and fixing pins, is time-consuming, prone to errors, and results in non-uniform illumination, affecting image quality.
Innovation Solution
A light adjustment module with a light source unit and a light adjustment unit comprising secondary optical elements with inclined surfaces that deflect light to achieve uniform illumination, eliminating the need for pin-bending and turning procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If insertion-type light emitting elements with pin structure are used and bent during manufacturing, then the light emitting elements can be oriented to emit to a certain region, but the manufacturing process becomes time-consuming and complicated
Solution Approach 1:
The invention divides the light adjusting function into separate light adjusting elements, each with independent light guiding surfaces. This segmentation allows each element to be independently positioned and oriented on the circuit board without requiring pin bending, thereby simplifying the manufacturing process while achieving precise light direction control.
Solution Approach 2:
Instead of bending the pins of light emitting elements to achieve orientation (as in conventional methods), this invention inverts the approach by using fixed-position light adjusting elements with specially designed light guiding surfaces to control light direction. This eliminates the need for post-assembly bending operations.
2Manufacturing precision
If pin bending is performed to align light emitting elements, then orientation alignment is achieved, but errors may occur producing defected products
Solution Approach 1:
The light adjusting function is segmented into multiple independent light adjusting elements, each with predetermined light guiding surfaces. This eliminates the need for manual pin bending and reduces orientation alignment errors, thereby lowering the defect rate.
Solution Approach 2:
The light adjusting elements are designed with pre-formed light guiding surfaces that inherently provide the required orientation. This preliminary design eliminates the need for post-assembly bending operations, reducing the risk of alignment errors and product defects.
3Ease of manufacture
If insertion-type light emitting elements are used without light guiding structures, then manufacturing is simpler, but the light emitted has non-uniform illumination
Solution Approach 1:
The invention introduces segmented light adjusting elements with specific light guiding surfaces positioned between the light emitting elements and the imaged object. These elements redirect light paths to achieve uniform illumination across the imaging region without complicating the basic insertion-type LED structure.
Solution Approach 2:
Light adjusting elements serve as intermediary components between the light emitting elements and the imaged object. These intermediaries redirect and distribute light to achieve uniform illumination while maintaining the simplicity of the original LED insertion method.
4Illumination intensity
If additional light guiding structures are added to achieve uniform illumination, then illumination quality improves, but device complexity increases
Solution Approach 1:
The light adjusting function is divided into multiple simple light adjusting elements rather than using a single complex light guiding structure. Each element has a straightforward design with light guiding surfaces, collectively achieving uniform illumination without excessive complexity.
Solution Approach 2:
Light adjusting elements are positioned at specific locations around the light emitting elements, with each element's light guiding surfaces oriented to control light in specific directions. This localized approach achieves uniform illumination without requiring complex structures throughout the entire device.
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 solution enhances image quality by optimizing illumination uniformity and reducing manufacturing time and labor costs by guiding light to achieve the desired angle and intensity distribution without additional manufacturing processes.
Implementation Method 1
An inner wall of each of the light transmitting cover comprises a first light guiding inclined surface and a second light guiding inclined surface. A first slope of the first light guiding inclined surface is different from a second slope of the second light guiding inclined surface. A light emitted by each of the light emitting elements is deflected through the corresponding first light guiding inclined surface and the corresponding second light guiding inclined surface.
Data Source
AI summary
A light-adjustment module for camera includes a light source unit and a light-adjustment unit. The light source unit includes light-emitting elements disposed around a lens of the camera, and the light-emitting direction of each light-emitting element is parallel to the image-capturing direction of the lens. The light-adjustment unit is disposed above the light source unit and includes secondary optical elements respectively corresponding to the light-emitting elements. Each secondary optical element includes a light-transmitting cover, and each light-emitting element is accommodated inside the corresponding light-transmitting cover. An inner wall of each light-transmitting cover includes a first light-guiding inclined surface and a second light-guiding inclined surface. A first slope of the first light-guiding inclined surface is different from a second slope of the second light-guiding inclined surface. A light emitted by each light-emitting element is deflected through the corresponding first light-guiding inclined surface and the corresponding second light-guiding inclined surface.