Liquid Lens with Insulation Protrusions for Ghost Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical devices face challenges in achieving high resolution, compact size, and efficient focal adjustment while preventing ghost and flare phenomena, which are exacerbated by the need for multiple lenses and power-consuming lens-moving apparatuses.
Innovation Solution
A liquid lens with a cavity having an inclined surface, conductive and non-conductive liquids, and an insulation layer with protrusions that adjust the interface curvature in response to electrical energy, reducing power consumption and enhancing diopter control range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses are combined to achieve high resolution and various photographing functions, then the photographing functions (AF, OIS) are improved, but the size of the optical device increases
Solution Approach 1:
The patent combines multiple lens functions into a single liquid lens by manipulating the interface between conductive and non-conductive liquids. The liquid lens can simultaneously achieve autofocus (by adjusting interface curvature) and optical image stabilization (by tilting the interface) functions, eliminating the need for separate lens elements and reducing overall device size.
Solution Approach 2:
The patent replaces traditional mechanical lens moving apparatus with an electrically controlled liquid lens system. By applying voltage to the liquid lens, the interface curvature and orientation are adjusted electrically, eliminating the need for mechanical actuators, magnets, and coils, thereby reducing device size and complexity.
2Adaptability or versatility
If a lens-moving apparatus is used to perform autofocus and hand-tremor compensation, then the photographing functions are improved, but power consumption increases and additional components are required
Solution Approach 1:
The patent replaces power-consuming mechanical lens moving apparatus with an electrically controlled liquid lens. The liquid lens adjusts its interface curvature and orientation by applying voltage, eliminating the need for motors, magnets, and coils, thereby significantly reducing power consumption while maintaining autofocus and OIS functions.
Solution Approach 2:
The liquid lens performs both autofocus and optical image stabilization functions through a single integrated structure. By controlling the interface between two liquids, the system achieves multiple functions simultaneously without requiring separate dedicated components, improving efficiency and reducing overall power requirements.
3Device complexity
If the interface between liquids contacts the inclined surface directly, then the structure is simple, but ghost and flare phenomena occur that deteriorate lens characteristics
Solution Approach 1:
The patent introduces a black coating layer as an intermediary between the liquid interface and the inclined surface. This coating layer prevents direct contact between the liquids and the inclined surface, thereby eliminating ghost and flare phenomena caused by light reflection, while maintaining the simplicity of the overall structure.
Solution Approach 2:
The patent addresses the harmful effect of light reflection at the inclined surface by applying a black coating. This converts the potential harm (ghost and flare) into a benefit by using the coating's light-absorbing properties to improve optical quality, while the coating itself is a simple and inexpensive material layer.
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 prevents ghost and flare phenomena, increases diopter control range, and reduces power consumption by optimizing the interface movement and curvature adjustment within the liquid lens.
Implementation Method 1
a liquid lens enabling adjustment of a focal length using electrical energy
Implementation Method 2
an interface may be formed between the conductive liquid and the non-conductive liquid, and the insulation layer may include a base disposed on the first electrode and a plurality of protrusions disposed on the base
Data Source
AI summary
A liquid lens according to one embodiment includes a first plate including a cavity in which liquids are disposed, the cavity having an inclined surface, a first electrode disposed on the inclined surface, a second electrode disposed on the first plate, and an insulation layer disposed on the first electrode, wherein the liquids include a conductive liquid and a non-conductive liquid, wherein an interface is formed between the conductive liquid and the non-conductive liquid, wherein the insulation layer includes a base disposed on the first electrode and a plurality of protrusions disposed on the base, and wherein the plurality of protrusions contacts the interface.