Lens Array Unit Integrated Light Shielding Holder
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Solution Overview
Problem
Conventional lens array units suffer from stray light issues due to the lack of a wall for beam separation, leading to ghost images and poorer imaging performance, and existing solutions require additional components for light shielding which can disrupt optical axis alignment.
Innovation Solution
A lens array unit with a holder that integrates light shielding material for precise alignment of lenses and through holes, reducing the need for separate light shielding components and improving imaging performance by eliminating stray light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate light shielding member is fitted to the lens array using projection and recess, then stray light is blocked, but alignment precision between lens optical axis and through hole optical axis deteriorates due to required fitting allowance
Solution Approach 1:
The holder and light shielding member are merged into a single integrally formed component made of light shielding material. This eliminates the separate projection-recess fitting interface, removing the need for fitting allowance and thereby improving alignment precision between lens optical axes and through hole optical axes while maintaining stray light blocking functionality.
2Object-affected harmful factors
If multiple separate components are used for lens array assembly, then light shielding can be provided, but device complexity increases and manufacturing cost increases
Solution Approach 1:
The holder and light shielding member are combined into one integrally formed component, reducing the number of parts in the lens array assembly. This simplifies the device structure, reduces assembly steps, and lowers manufacturing cost while effectively controlling stray light through the integrated light shielding surfaces.
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 integrated light shielding holder enhances the precision of lens alignment and imaging performance while reducing the number of components, making the lens array unit more cost-effective and efficient.
Implementation Method 1
the holder comprises: a first surface part provided with a plurality of first through holes respectively corresponding to the plurality of first outer lenses; a second surface part provided with a plurality of second through holes respectively corresponding to the plurality of second outer lenses; and a support part operative to support the first surface part and the second surface part so as to be located at a predetermined distance from each other, wherein the first surface part, the second surface part, and the support part are integrally formed by a light shielding material
Data Source
AI summary
A lens array unit includes a first lens array plate, a second lens array plate, and a holder. The holder includes a first surface part provided with a plurality of first through holes respectively corresponding to a plurality of first outer lenses, a second surface part provided with a plurality of second through holes respectively corresponding to a plurality of second outer lenses, and a support part operative to support the first surface part and the second surface part so as to be located at a predetermined distance from each other. The first surface part, the second surface part, and the support part are integrally formed by a light shielding material, and the first lens array plate and the second lens array plate are held by the holder by being inserted into the gap between the first surface part and the third surface part and the gap between the second surface part and the third surface part, respectively.