Stage Lighting Optical System with Movable Light Source
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Solution Overview
Problem
Existing stage lighting systems face challenges in efficiently switching between spot and beam effects with high light loss and poor practicality due to the need for additional optical assemblies and limited space, leading to suboptimal lighting effects.
Innovation Solution
A stage lighting optical system with a light source assembly, object assembly, and zoom lens assembly on the same primary optical axis, allowing the light source to move relative to the object assembly to change condensing positions for rapid switching between beam and spot effects without additional optical components, utilizing a rotating disk and motor for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a first optical assembly is added to realize beam effects, then beam lighting effect is improved, but device complexity increases and space requirements increase
Solution Approach 1:
The patent combines the first optical assembly (for beam effects) and second optical assembly (for spot effects) into a single integrated optical system with a shared light source and reflective bowl. The optical assemblies are merged in space and function, reducing overall device complexity while maintaining both beam and spot lighting capabilities.
Solution Approach 2:
The single light source and reflective bowl serve multiple functions by working with different optical assemblies. The system can switch between beam mode (using first optical assembly) and spot mode (using second optical assembly), making the lighting system universal and multi-functional without requiring separate independent systems.
2Illumination intensity
If a first optical assembly is added to realize beam effects, then beam lighting effect is improved, but the space between light source and second optical assembly must be increased
Solution Approach 1:
The patent arranges the optical assemblies and light source in a three-dimensional configuration where the first optical assembly is positioned at a first location and the second optical assembly at a second location relative to the light source. This spatial arrangement in multiple dimensions allows both assemblies to access the light source without requiring excessive linear space in a single dimension.
3Adaptability or versatility
If the first optical assembly moves into the primary optical axis position, then spot effect is realized, but light loss increases due to suboptimal optical parameters
Solution Approach 1:
The patent pre-optimizes the optical parameters of both the first and second optical assemblies for their respective functions. The light source position, reflective bowl geometry, and optical assembly configurations are predetermined and optimized in advance, so when switching between beam and spot modes, the system immediately operates at optimal parameters without light loss from suboptimal positioning.
4Adaptability or versatility
If different types of lights are changed and used in a complicated stage scene, then various lighting effects are achieved, but operation complexity increases
Solution Approach 1:
The patent implements a dynamic switching mechanism that allows the lighting system to transition between beam mode and spot mode on demand. A control system dynamically selects which optical assembly to use based on the desired lighting effect, enabling versatile stage lighting operations without manual reconfiguration or complex switching procedures.
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 enables efficient switching between beam and spot effects with reduced light loss and improved practicality by adjusting the light source's position in conjunction with the object assemblies, achieving high utilization efficiency and uniform lighting effects.
Implementation Method 1
a reflective bowl, a first optical assembly, and a second optical assembly... After emitted by the light source, the light passes through the reflective bowl
Implementation Method 2
the middle beam is condensed, the whole light pillar seems to have an obvious beam feeling... When the beam shines on an imaging plane, there is obvious layering feeling between the spot centre and the spot edge
Implementation Method 3
the beam reflected from the reflective bowl is diverged by the first optical assembly, and then passes through the second optical assembly. The original gathered beam becomes diverged
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a stage lighting optical system including spot and beam effects simultaneously, comprising a light source assembly from which condensed light can be emitted (1), an object assembly, and a zoom lens assembly, which are located in a same primary optical axis direction. The light from said light source assembly (1) is cast by the object assembly and the zoom lens assembly. Wherein, said object assembly include an object for beam mode assembly (21) and an object for gobo mode assembly (22) that can be switched with each other and enter to the primary optical axis. Said light source assembly (1) can move forward or backward along the primary optical axis with respect to the object assembly. When the light source assembly moves forward to a first position with respect to the object assembly, the beam design assembly (21) is switched to the primary optical axis. When the object for beam mode assembly (1) moves backward to a second position with respect to the design assembly, the object for gobo mode assembly (22) is switched into the primary optical axis. The present invention possesses advantages such as low light loss and high utilization efficiency.