Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems^†

Round 1

Reviewer 1 Report

This is a review paper. It concludes with the author's contributions to the holographic display.  Therefore, the title must indicate "review paper". Furthermore, the author suggests some scanning schemes. The author indicates such schemes improve the performance of the holographic display. I suggest the author can list a table to show their improvement. Moreover, due to a review paper, it had better add some comparison with other's work in each scheme.

Author Response

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Reviewer 2 Report

The authors reviewed several MEMS-SLM-based holographic display systems combined with scanning schemes. The screen scanning system extended the horizontal viewing zone. The circular scanning system implemented a circular scan instead of a linear scan and therefore offered a 360° viewing zone. The RGB scanning system realized color holographic display with viewing zone extension. The multi-channel scanning system utilizing the spatial-multiplexing had the advantage of large screen size. The scanning system using pulse-modulated MEMS SLM made full use of the short-pulse laser light for illumination and extended the viewing zone without the mechanical system. The manuscript is well-organized. However, there are some key points that need to be modified.

 

1.     Part two and part seven’s titles “Screen Scanning System” are identical. It’s recommended to change the title of part seven.

2.     In line 85, “so the viewing zone width was reduced to 9.74mm”. However, only the viewing zone angle is given in the manuscript. It’s suggested to illustrate more clearly why the viewing zone is reduced to 9.74mm.

3.     In “Circular Scanning System”, the key component is a rotating screen. It is suggested that more detailed descriptions about the rotating screen be added. Besides, in Fig. 7, there are ghost images around the reconstructed image. Please explain it.

4.     There are two “Figure 7” in the manuscript.

5.     Since the RGB scanning system was used for color holographic reconstruction with an extended viewing zone, it’s recommended to add more descriptions about color holographic reconstruction, for example, how to eliminate color dispersions in the system.

 

6.     In line 161, “increased to from 40° to 360°” should be “increased from 40° to 360°”.

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

While this manuscript was submitted as an "Article", the content is in fact very like a review paper, which, however, mainly covers the author's own work. It is then hard for me to give comments. Strictly speaking, this is definitely not a good research article paper, and it also does not look like a typical review paper.

I would suggest the authors resubmit this work as a "review" paper and include the works from other groups.

Nevertheless, I like the content personally, although I am not sure if it is suitable for publication. I may leave the decision to the editor.

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 4 Report

The comments on "enlargements of viewing zone and screen size of holographic displays using MEMS SLM combined with scanning systems" by Takaki:

1. The manuscript is well written and the results reveal good improvement, however, the literature survey for holographic displays is not sufficient and needs to be improved.

2. Is the delay time for the system (microelectromechanical systems spatial light modulators combined with spatial scanning systems) considered? Please clarify.

3. The selection of physical parameters such as the resolution, the pixel pitch, and the frame rate should be described. Is there any optimization for these parameters?

4. The effect of scanning pattern on the system performance may be described in more details.

 

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 5 Report

The present paper reviews different techniques to increase the viewing area and the screen size of holographic displays.

However, the novelty of the paper seems not enough for this type of paper (Article).

 

 

Author Response

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Round 2

Reviewer 3 Report

No further comments