Abstract

Compound diffractive telescope is a new type of space optical system. It applies the structure of compound eyes into diffractive telescopes. With the help of diffractive optical element, the optical system could become lighter in weight, lower in cost, and looser in sensitivity to manufacturing tolerance. And with the help of compound eyes structure, the field of view is expanded. A demonstrated system of compound diffractive telescope is given. It is composed of one 50mm aperture primary diffractive lens and twenty-one eyepieces. The characteristics of the system are analysed by testing its star image and resolution. It is shown that the whole system can provide about diffraction limit imaging within 4.2 degree field of view.

© 2008 Optical Society of America

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References

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  1. A. Eamonn, "A new membrane mirror for infrared telescopes," SPIE 5489, 1173-1177 (2004).
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2007 (1)

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

2005 (1)

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

2004 (1)

A. Eamonn, "A new membrane mirror for infrared telescopes," SPIE 5489, 1173-1177 (2004).
[CrossRef]

2001 (2)

1999 (1)

1980 (2)

G. A. Horridge, "Apposition eyes of large diurnal insects as organs adapted to seeing," Proceedings of the Royal Society of London B 207, 287-309 (1980).
[CrossRef]

F. Land, "Compound eyes: old and new optical mechanisms," Nature 287, 681-686 (1980).
[CrossRef] [PubMed]

1977 (1)

G. A. Horridge, "The compound eye of insects," Scientific American 237, 108-120 (1977).
[CrossRef]

Brett, D.

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

Brian, G. P.

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

Dan, K. M.

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

Eamonn, A.

A. Eamonn, "A new membrane mirror for infrared telescopes," SPIE 5489, 1173-1177 (2004).
[CrossRef]

Fengyou, L.

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

Gregory, S. A.

W. W. John and S. A. Gregory, "Optical Metrology Of Adaptive Membrane Mirrors," SPIE 4327, 13-23 (2001).
[CrossRef]

Horridge, G. A.

G. A. Horridge, "Apposition eyes of large diurnal insects as organs adapted to seeing," Proceedings of the Royal Society of London B 207, 287-309 (1980).
[CrossRef]

G. A. Horridge, "The compound eye of insects," Scientific American 237, 108-120 (1977).
[CrossRef]

Hua, L.

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

Hyde, A.

James, D. M.

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

Jerald, A. B.

John, W. W.

W. W. John and S. A. Gregory, "Optical Metrology Of Adaptive Membrane Mirrors," SPIE 4327, 13-23 (2001).
[CrossRef]

Lan, M. B.

Land, F.

F. Land, "Compound eyes: old and new optical mechanisms," Nature 287, 681-686 (1980).
[CrossRef] [PubMed]

Nan, Z.

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

Qiang, S.

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

Shanasundar, N. D.

Surya, C.

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

Zhenwu, L.

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

Appl. Opt. (2)

Nature (1)

F. Land, "Compound eyes: old and new optical mechanisms," Nature 287, 681-686 (1980).
[CrossRef] [PubMed]

Proceedings of the Royal Society of London B (1)

G. A. Horridge, "Apposition eyes of large diurnal insects as organs adapted to seeing," Proceedings of the Royal Society of London B 207, 287-309 (1980).
[CrossRef]

Scientific American (1)

G. A. Horridge, "The compound eye of insects," Scientific American 237, 108-120 (1977).
[CrossRef]

SPIE (4)

A. Eamonn, "A new membrane mirror for infrared telescopes," SPIE 5489, 1173-1177 (2004).
[CrossRef]

W. W. John and S. A. Gregory, "Optical Metrology Of Adaptive Membrane Mirrors," SPIE 4327, 13-23 (2001).
[CrossRef]

C. Surya, D. M. James, G. P. Brian, D. Brett, and K. M. Dan, "Design, fabrication, and validation of an ultra-lightweight membrane mirror," SPIE. 5894, 1-12 (2005).

L. Zhenwu, Z. Nan, L. Hua, L. Fengyou, and S. Qiang, "Compound telescope," SPIE 62891-5 (2007).

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Figures (9)

Fig. 1.
Fig. 1.

The structure of single-eye diffractive telescope.

Fig. 2.
Fig. 2.

Compound diffractive telescope of the later model structure.

Fig. 3.
Fig. 3.

Space structure of the adjacent eyepieces.

Fig. 4.
Fig. 4.

(a) MTF plot of channel 0 (b) MTF plot of channel 10.

Fig. 5.
Fig. 5.

(a) Point spread function of channel 0 (b) Point spread function of channel 10.

Fig. 6.
Fig. 6.

Layout for testing star image.

Fig. 7.
Fig. 7.

(a) Star images of channel 0 (b) Star images channel 10.

Fig. 8.
Fig. 8.

Layout for testing resolution.

Fig. 9.
Fig. 9.

(a) Resolution test result of channel 0 (b) Resolution test result of channel 10.

Tables (1)

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Table 1 Tolerance of diffractive telescope

Equations (1)

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f ( λ ) = f 0 λ λ 0

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