LIGHT SOURCE MODULE AND PROJECTOR

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LIGHT SOURCE MODULE AND PROJECTOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18563323 titled 'LIGHT SOURCE MODULE AND PROJECTOR

The abstract describes a light source module with a light source unit, a wavelength conversion unit, a wavelength selective polarization separation element, and a phase difference element.

Light source unit outputs excitation light.
Wavelength conversion unit has a phosphor region and a reflection region.
Phosphor region absorbs excitation light and outputs fluorescence in a different wavelength band.
Reflection region reflects excitation light and outputs it as second light.
Wavelength selective polarization separation element separates light based on polarization direction.
Phase difference element rotates polarization direction of excitation light.

Potential Applications: - This technology can be used in lighting systems for various applications such as indoor lighting, automotive lighting, and display backlighting. - It can also be applied in medical devices for fluorescence imaging and spectroscopy.

Problems Solved: - Efficiently converting excitation light to different wavelength bands. - Separating light based on polarization direction. - Rotating polarization direction for specific applications.

Benefits: - Enhanced efficiency in light conversion. - Improved control over light polarization. - Versatile applications in different industries.

Commercial Applications: Title: Advanced Light Source Module for Diverse Applications This technology can be commercialized in the fields of lighting, medical imaging, and display technology. It offers improved efficiency and control over light output, making it valuable for various commercial applications.

Questions about Light Source Module: 1. How does the phase difference element contribute to the functionality of the light source module? The phase difference element selectively rotates the polarization direction of the excitation light, allowing for precise control over the output light properties.

2. What are the key advantages of using a wavelength conversion unit with a phosphor region and a reflection region in a light source module? The combination of a phosphor region and a reflection region allows for efficient conversion of excitation light to different wavelength bands, enhancing the versatility of the light source module.

Original Abstract Submitted

A light source module according to an embodiment of the present disclosure includes: a light source unit that outputs excitation light; a wavelength conversion unit having a phosphor region and a reflection region, the phosphor region absorbing the excitation light and outputting, as first light, fluorescence that includes light in a wavelength band different from a wavelength band of the excitation light, the reflection region reflecting the excitation light and outputting the excitation light as second light; a wavelength selective polarization separation element that separates light in a predetermined wavelength band on the basis of a polarization direction; and a phase difference element that is selectively disposed in the reflection region and rotates a polarization direction of the excitation light.