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Applied Sciences
Volume 10
Issue 18
10.3390/app10186198
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Article
Peer-Review Record

Luminous and Melanopic Efficiency Performance of Phosphor-Converted LEDs with Tunable Spectral Characteristics

Appl. Sci. 2020, 10(18), 6198; https://doi.org/10.3390/app10186198
by Peiyu Wu 1, Jiaqi Ju 2,* and Qi Yao 1,*
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Appl. Sci. 2020, 10(18), 6198; https://doi.org/10.3390/app10186198
Submission received: 6 August 2020 / Revised: 22 August 2020 / Accepted: 3 September 2020 / Published: 7 September 2020
(This article belongs to the Section Optics and Lasers)

Round 1

Reviewer 1 Report

The presented draft looks much more like technical but not a scientific paper.
Authors should clearly describe what is novel in their research from previously published studies. What is the problem, and how the current challenge will be solved with their study not only from practical but also from a fundamental perspective?

Figure 2 should be corrected, emission intensity should be mentioned, and the figure's quality should be significantly improved.


In the end, I am recommending minor but obligatory revision before acceptance of the draft.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

In this paper, the authors investigated the luminous efficiency of radiation (LER) and the melanopic efficiency of radiation (MER) of phosphor-conversion (PC) LEDs theoretically. The LER and MER of PC LEDs were calculated systematically by changing the PC LED spectrum and the dependence of the LEDR and MER on the LED spectrum was investigated. However, in its present form, I don’t believe this paper is suitable for publication in Applied Sciences based on the following reasons.

First, the main results of this paper can be easily deducible from the spectral distribution of PC LEDs. Because the peak wavelength of photopic vision sensitivity (V) and the melanopic vision sensitivity (M) respectively exists at 555 nm and 490 nm, the decreasing (increasing) behavior of LER (MER) with increasing CCT can be naturally expected. I don’t think this paper showed sufficient significance of content.

Second, although the trend of LER and MER with spectral distribution of PC LEDs was well summarized, it would be necessary to discuss the optimum spectral distribution.

Third, this paper presented calculation results with changing the spectral distribution of phosphors. However, it is questionable that the calculated phosphor spectrum can match the spectrum of real phosphor materials. It would be necessary to discuss whether it is possible to actually realize the phosphor materials with desired spectral distribution calculated in this paper.

Forth, how was the CCT calculated? It would be necessary to check the calculated CCT values were not significantly deviated from the Planckian locus.   

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 2 Report

The authors revised the manuscript well according to the reviewers' comments. 

I think the novelty of this paper was greatly improved to recommend the paper to be published in Applied Sciences.

 

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