Precise mid-field modeling for UVC LEDs by using a fluorescent film

Thi Thu Ngoc Le; Shih Kang Lin; Ching Cherng Sun; Quang Khoi Nguyen; Chi Shou Wu; Tsung Hsun Yang; Yeh Wei Yu

doi:10.1364/OSAC.444839

Precise mid-field modeling for UVC LEDs by using a fluorescent film

Thi Thu Ngoc Le, Shih Kang Lin, Ching Cherng Sun, Quang Khoi Nguyen, Chi Shou Wu, Tsung Hsun Yang, Yeh Wei Yu

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

This paper presents the mid-field model for an ultraviolet C light emitting diode (UVC LED) of wavelength around 275±5 nm by comparison of the 2-dimension (2-D) gray-level image captured from a mono-CMOS sensor and simulated irradiance pattern. Because of UVC light, we propose using a fluorescent film to absorb UVC light and re-emit visible light so that the 2-D image could be captured. The analysis and calibration to obtain accurate gray level of image are performed. Finally, we achieve the mid-field model with high accuracy. Furthermore, this model is also applied for dome lens design and then compares the performance with fabricated samples in measurement to expertise its validity.

Original language	English
Pages (from-to)	3117-3128
Number of pages	12
Journal	OSA Continuum
Volume	4
Issue number	12
DOIs	https://doi.org/10.1364/OSAC.444839
State	Published - 15 Dec 2021

Access to Document

10.1364/OSAC.444839

Study of 50-M Solid-State Spot Light for High-Standard Stage Projection System(2/2)
Sun, C.-C. (PI)
1/08/21 → 31/10/22
Project: Research
Development of Optical-Design Compensation Technique to Extend Manufacture Tolerance for Led-Based Vehicle High-Contrast Headlamp( II )
Sun, C.-C. (PI)
1/06/20 → 31/05/21
Project: Research

Cite this

@article{c19973363b1d48b2a9fcaa2612cf55be,

title = "Precise mid-field modeling for UVC LEDs by using a fluorescent film",

abstract = "This paper presents the mid-field model for an ultraviolet C light emitting diode (UVC LED) of wavelength around 275±5 nm by comparison of the 2-dimension (2-D) gray-level image captured from a mono-CMOS sensor and simulated irradiance pattern. Because of UVC light, we propose using a fluorescent film to absorb UVC light and re-emit visible light so that the 2-D image could be captured. The analysis and calibration to obtain accurate gray level of image are performed. Finally, we achieve the mid-field model with high accuracy. Furthermore, this model is also applied for dome lens design and then compares the performance with fabricated samples in measurement to expertise its validity.",

author = "Le, {Thi Thu Ngoc} and Lin, {Shih Kang} and Sun, {Ching Cherng} and Nguyen, {Quang Khoi} and Wu, {Chi Shou} and Yang, {Tsung Hsun} and Yu, {Yeh Wei}",

note = "Publisher Copyright: {\textcopyright} 2021 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement",

year = "2021",

month = dec,

day = "15",

doi = "10.1364/OSAC.444839",

language = "???core.languages.en_GB???",

volume = "4",

pages = "3117--3128",

journal = "OSA Continuum",

issn = "2578-7519",

number = "12",

}

TY - JOUR

T1 - Precise mid-field modeling for UVC LEDs by using a fluorescent film

AU - Le, Thi Thu Ngoc

AU - Lin, Shih Kang

AU - Sun, Ching Cherng

AU - Nguyen, Quang Khoi

AU - Wu, Chi Shou

AU - Yang, Tsung Hsun

AU - Yu, Yeh Wei

PY - 2021/12/15

Y1 - 2021/12/15

N2 - This paper presents the mid-field model for an ultraviolet C light emitting diode (UVC LED) of wavelength around 275±5 nm by comparison of the 2-dimension (2-D) gray-level image captured from a mono-CMOS sensor and simulated irradiance pattern. Because of UVC light, we propose using a fluorescent film to absorb UVC light and re-emit visible light so that the 2-D image could be captured. The analysis and calibration to obtain accurate gray level of image are performed. Finally, we achieve the mid-field model with high accuracy. Furthermore, this model is also applied for dome lens design and then compares the performance with fabricated samples in measurement to expertise its validity.

AB - This paper presents the mid-field model for an ultraviolet C light emitting diode (UVC LED) of wavelength around 275±5 nm by comparison of the 2-dimension (2-D) gray-level image captured from a mono-CMOS sensor and simulated irradiance pattern. Because of UVC light, we propose using a fluorescent film to absorb UVC light and re-emit visible light so that the 2-D image could be captured. The analysis and calibration to obtain accurate gray level of image are performed. Finally, we achieve the mid-field model with high accuracy. Furthermore, this model is also applied for dome lens design and then compares the performance with fabricated samples in measurement to expertise its validity.

UR - http://www.scopus.com/inward/record.url?scp=85125011654&partnerID=8YFLogxK

U2 - 10.1364/OSAC.444839

DO - 10.1364/OSAC.444839

M3 - 期刊論文

AN - SCOPUS:85125011654

SN - 2578-7519

VL - 4

SP - 3117

EP - 3128

JO - OSA Continuum

JF - OSA Continuum

IS - 12

ER -

Precise mid-field modeling for UVC LEDs by using a fluorescent film

Abstract

Access to Document

Fingerprint

Projects

Study of 50-M Solid-State Spot Light for High-Standard Stage Projection System(2/2)

Development of Optical-Design Compensation Technique to Extend Manufacture Tolerance for Led-Based Vehicle High-Contrast Headlamp( II )

Cite this