7. Detailed Description
Laser
Characteristics of Laser Light Source Projector
Advantages
1. Laser light source has a long working lifetime of 20,000 hours or longer, minimizing the need
to replace the light source.
2. The projection start-up time is shorter than the lamp light source.
3. Unlike the existing lamp, the laser light source does not contain mercury and is eco-friendly.
Disadvantages and Challenges
1. Laser light source is expensive.
2. Compliance with laws and regulations in different countries. Class definition of laser
equipment. Compliance with Ricoh regulations.
3. Ensuring safety and education of service representatives
Classification According to Light Source
According to the light source light collection method, laser projectors can be classified to the following 4
categories:
The machine applies the "3. Laser Diode + Phosphor" method. Using the phosphor wheel, it creates the
other required colors (yellow, red, and green) from the blue laser light source.
Light Source/
Light Collection
Method
image Characteristic
1.LED
• Instant on
• Long lifetime
• Maintenance-free
• Increased color gamut
• Compact projector size
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