Laser Projection Light Safety and Versatility
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Solution Overview
Problem
Current laser projection lights do not adequately protect people's eyes from direct exposure to the laser light beam, and they lack versatility in creating varied light effects and practical night lighting solutions.
Innovation Solution
Incorporating a light blocking wall and safety sensor to prevent direct viewing of the laser light, combining laser and LED light sources for night lighting, and using adjustable optics means to create changeable light patterns, including motor-driven movement of optics components for dynamic effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If laser projection light is used to create geometric patterns and light effects, then illumination intensity and visual effects are improved, but harm to people's eyes from direct exposure increases
Solution Approach 1:
The device is segmented into distinct functional components: laser light source, optics means for pattern creation, light blocking wall for safety, and sensor means for detection. This segmentation allows the laser to provide intense illumination while the blocking wall and sensor separately handle the safety concern of direct exposure.
Solution Approach 2:
The light blocking wall acts as an intermediary barrier between the laser light source and people, physically blocking direct line-of-sight exposure. The sensor means serves as an intermediary detection system that monitors for people in dangerous zones and triggers automatic shutdown, mediating between potential exposure and actual harm.
2Object-affected harmful factors
If safety sensor means and light blocking wall are added to prevent direct laser viewing, then eye safety is improved, but device complexity increases
Solution Approach 1:
The housing structure serves multiple functions: it contains the laser light source, supports the optics means, incorporates the light blocking wall, and houses the sensor means. This multi-functionality reduces the need for separate structural components, thereby limiting the increase in device complexity despite adding safety features.
Solution Approach 2:
The safety features (light blocking wall and sensor means) are merged into the same housing structure that contains the laser and optics means. The blocking wall is integrated as part of the housing, and the sensor means is positioned within the same structural envelope, combining safety and functional elements into a unified device architecture.
3Adaptability or versatility
If multiple lasers, holograms, and gratings are incorporated to create varied light effects, then adaptability and versatility of light effects are improved, but device complexity increases
Solution Approach 1:
The device incorporates adjustable means and motor means that enable dynamic repositioning of the optics means during operation. This allows a single set of optics components to create multiple different geometric patterns and light effects by changing their orientation and position, achieving versatility without requiring multiple fixed optical assemblies.
Solution Approach 2:
The device achieves varied light effects by changing parameters such as the orientation, position, and relative arrangement of the optics means. By adjusting these parameters dynamically, the same physical components can produce multiple different geometric patterns and lighting effects, providing adaptability without proportionally increasing device complexity.
4Adaptability or versatility
If LED light means are added to provide night light function, then versatility of the device is improved, but device complexity increases
Solution Approach 1:
The device is designed with multi-functionality, incorporating both laser projection capability and LED night light function within a single unit. The housing contains both laser light source and LED light source, along with shared control circuitry and power supply, allowing the device to serve multiple purposes: geometric pattern projection and ambient night lighting.
Solution Approach 2:
The laser light source and LED light source are merged into the same housing structure with shared support elements, power supply, and control systems. This combination allows both light sources to coexist in a unified device, providing dual functionality while minimizing the increase in overall device complexity through shared infrastructure.
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 safeguards eyes from direct laser exposure, offers a range of dynamic light effects, and provides a dual-function light source that can operate as both a projection light and a practical night light.
Implementation Method 1
a light blocking wall to prevent people from directly seeing the laser light source
Implementation Method 2
sensor means to detect when people are near the laser project light
Implementation Method 3
incorporates a laser, hologram, and/or grating optics means to cause the laser light beams to make desired geometric patterns
Implementation Method 4
laser, hologram, and/or grating optics means to cause the laser light beams to make desired geometric patterns
Implementation Method 5
incorporates LED light means to cause the laser projection light to have a night light function and offer illumination
Data Source
AI summary
A laser projection light has a light blocking wall and safety sensor to prevent people from directly looking into the laser beams to harm their eyes. The laser projection light may be an AC powered laser projection light or a DC powered battery operated unit, and may also incorporate a UL listed LED light device to that provides an LED light device function in addition to the projection function in case people do not want to see the laser projection light performance and wish to switch off the laser beam.