Honeycomb Condenser Optical System for Light Homogenization
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Solution Overview
Problem
Existing optical systems face challenges in achieving homogeneous color and brightness distribution when using multiple parallel but non-collinear light sources, leading to inhomogeneous light emission that is unsuitable for various applications and aesthetically disturbing.
Innovation Solution
An optical system comprising two honeycomb condensers with lenticular array sheets and at least one diffuser, which synergistically enhances light homogenization by expanding and mixing light beams, ensuring uniformity in both the near and far fields, and is adaptable for different projector configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple parallel but non-collinear light sources are used to produce bright projectors, then the brightness and intensity are improved, but the homogeneity of color and brightness distribution deteriorates
Solution Approach 1:
The optical system is divided into multiple functional segments: first honeycomb condenser for initial homogenization, second honeycomb condenser for further homogenization, and diffuser for final uniformity. Each segment processes the light progressively to achieve overall homogeneity while maintaining high brightness from multiple light sources.
Solution Approach 2:
Honeycomb condensers and diffusers are introduced as intermediary optical elements between the non-collinear light sources and the final image plane. These intermediaries redirect and redistribute the light rays to eliminate inhomogeneities caused by the non-collinear arrangement of light sources.
2Manufacturing precision
If honeycomb condensers and diffusers are added to homogenize light, then the homogeneity of light distribution is improved, but the device complexity increases
Solution Approach 1:
The honeycomb condenser structure serves multiple functions simultaneously: it acts as a field lens to control the angular distribution of light, a homogenizer to equalize brightness across the field, and a means to define the acceptance angle for subsequent optical elements. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The optical system employs a nested arrangement where the first honeycomb condenser is positioned within the focal structure of the second honeycomb condenser, and both are integrated with the diffuser element. This nested configuration allows multiple homogenization stages to be compactly arranged without requiring proportionally increased system volume or complexity.
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 optical system effectively homogenizes light from multiple parallel but non-collinear light sources, achieving uniform spatial and angle-related light distribution, enhancing suitability for high-intensity applications and reducing the impact of inhomogeneities in light distribution.
Implementation Method 1
two honeycomb condensers, which are connected one behind the other and in each case have two lenticular array sheets
Implementation Method 2
lenticular array sheets, which are connected one behind the other... Each honeycomb condenser having the at least two lenticular array sheets, which are connected one behind the other, can be referred to as a honeycomb condenser stage
Implementation Method 3
at least one diffuser which is connected downstream of the honeycomb condensers... The downstream diffuser causes an expansion of the light beams emitted by the lens elements
Data Source
AI summary
In various embodiments, an optical system is provided. The optical system includes two honeycomb condensers, which are connected one behind the other and in each case have two lenticular array sheets, which are connected one behind the other, and at least one diffuser which is connected downstream of the honeycomb condensers.