Abstract

We present a wide-field compact f-1.2, f-1.6 effective illumination catadioptric telescope that spans the wavelengths 0.7–14.0 μm. Such a telescope replaces several telescopes designed for different infrared bands, while having a track length shorter than most single-band telescopes. Incorporated with a suitable multiband focal plane array, many wavelength bands may be imaged simultaneously in the same instrument. We have constructed and tested prototypes of the telescopes and found the performance is near the predicted values.

© 2013 Optical Society of America

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    [CrossRef]
  2. I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.
  3. H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
    [CrossRef]
  4. Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
    [CrossRef]
  5. J. M. Palmer, “Catadioptric infrared lenses,” U.S. patent4,714,307 (22December1987).
  6. E. K. Kaprelian and W. E. Mimmack, “Catadioptric lens system,” U.S. patent4,061,420 (6December1977).
  7. S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
    [CrossRef]
  8. R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
    [CrossRef]
  9. N. A. Thompson, “Common aperture multi-spectral optics for military applications,” Proc. SPIE 8353, 83531X (2012).
    [CrossRef]
  10. N. A. Thompson, “Optical design of common aperture, common focal plane, multispectral optics for military applications,” Opt. Eng. 52, 061308 (2013).
    [CrossRef]
  11. E. J. Tremblay, R. A. Stack, R. L. Morrison, and J. E. Ford, “Ultrathin cameras using annual folded optics,” Appl. Opt. 46, 463–471 (2007).
    [CrossRef]
  12. E. J. Tremblay, R. A. Stack, R. L. Morrison, J. H. Karp, and J. E. Ford, “Ultrathin four-reflection imager,” Appl. Opt. 48, 343–354 (2009).
    [CrossRef]

2013

N. A. Thompson, “Optical design of common aperture, common focal plane, multispectral optics for military applications,” Opt. Eng. 52, 061308 (2013).
[CrossRef]

2012

N. A. Thompson, “Common aperture multi-spectral optics for military applications,” Proc. SPIE 8353, 83531X (2012).
[CrossRef]

2011

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

2009

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

E. J. Tremblay, R. A. Stack, R. L. Morrison, J. H. Karp, and J. E. Ford, “Ultrathin four-reflection imager,” Appl. Opt. 48, 343–354 (2009).
[CrossRef]

2007

2006

H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
[CrossRef]

1997

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

1971

Aggarwal, I.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Bayya, S.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Begum, F.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Cao, G.-Y.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Czajkowski, A.

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

Dobrowolski, J. A.

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

Fleet, E.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Ford, J. E.

Herman, E.

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

High, M.

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

Hoffman, J. M.

H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
[CrossRef]

Kaprelian, E. K.

E. K. Kaprelian and W. E. Mimmack, “Catadioptric lens system,” U.S. patent4,061,420 (6December1977).

Karp, J. H.

Kim, W.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Liu, L.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Miller, A.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Mimmack, W. E.

E. K. Kaprelian and W. E. Mimmack, “Catadioptric lens system,” U.S. patent4,061,420 (6December1977).

Morrison, R. L.

O’Shea, K.

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

Palmer, J. M.

J. M. Palmer, “Catadioptric infrared lenses,” U.S. patent4,714,307 (22December1987).

Pancchhi, P.

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

Rodgers, J. M.

H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
[CrossRef]

Sanghera, J.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Shaw, B.

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

Sinclair, R. L.

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

Sparrold, S.

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

Spencer, H. M.

H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
[CrossRef]

Stack, R. A.

Strong, J.

Thompson, N. A.

N. A. Thompson, “Optical design of common aperture, common focal plane, multispectral optics for military applications,” Opt. Eng. 52, 061308 (2013).
[CrossRef]

N. A. Thompson, “Common aperture multi-spectral optics for military applications,” Proc. SPIE 8353, 83531X (2012).
[CrossRef]

Tremblay, E. J.

Yang, Y.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Zhang, J.-H.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Zhang, Y.-C.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Zou, N.-Y.

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Appl. Opt.

Opt. Eng.

N. A. Thompson, “Optical design of common aperture, common focal plane, multispectral optics for military applications,” Opt. Eng. 52, 061308 (2013).
[CrossRef]

Proc. SPIE

S. Sparrold, E. Herman, A. Czajkowski, and K. O’Shea, “Refractive lens design for simultaneous SWIR and LWIR imaging,” Proc. SPIE 8012, 801224 (2011).
[CrossRef]

R. L. Sinclair, M. High, P. Pancchhi, and J. A. Dobrowolski, “Broadband lens design for SWIR/MWIR applications,” Proc. SPIE 3061, 376–387 (1997).
[CrossRef]

N. A. Thompson, “Common aperture multi-spectral optics for military applications,” Proc. SPIE 8353, 83531X (2012).
[CrossRef]

H. M. Spencer, J. M. Rodgers, and J. M. Hoffman, “Optical design of a panoramic, wide spectral band, infrared fisheye lens,” Proc. SPIE 6324, 63421P (2006).
[CrossRef]

Y.-C. Zhang, L. Liu, F. Begum, G.-Y. Cao, J.-H. Zhang, Y. Yang, and N.-Y. Zou, “Mid- and long-waveband infrared imaging system design,” Proc. SPIE 7494, 74940M (2009).
[CrossRef]

Other

J. M. Palmer, “Catadioptric infrared lenses,” U.S. patent4,714,307 (22December1987).

E. K. Kaprelian and W. E. Mimmack, “Catadioptric lens system,” U.S. patent4,061,420 (6December1977).

I. Aggarwal, J. Sanghera, S. Bayya, W. Kim, A. Miller, B. Shaw, and E. Fleet, “Rugged optics for multispectral imaging systems,” in Imaging Systems (Optical Society of America, 2010), paper IMB5.

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Figures (10)

Fig. 1.
Fig. 1.

Layout of the broadband infrared telescope showing the front and rear optics and ray traces of several image points. The seven optical surfaces on the two optics are labeled by the letters A to G.

Fig. 2.
Fig. 2.

Nominal MTF of the telescope for the SWIR band.

Fig. 3.
Fig. 3.

Nominal MTF of the telescope for the LWIR band.

Fig. 4.
Fig. 4.

RMS wavefront error of the telescope over the entire band 0.7–14.0 μm. With appropriate antireflection coatings, this design is usable in a combination of SWIR, MWIR, or LWIR.

Fig. 5.
Fig. 5.

Monte Carlo MTF calculation of the SWIR performance.

Fig. 6.
Fig. 6.

Monte Carlo MTF calculation of the LWIR performance.

Fig. 7.
Fig. 7.

Photographs of the rear optic after diamond turning but before coating.

Fig. 8.
Fig. 8.

Photographs of the completed telescope.

Fig. 9.
Fig. 9.

LWIR sagittal and tangential MTFs of two telescopes.

Fig. 10.
Fig. 10.

SWIR sagittal and tangential MTFs of two telescopes.

Tables (2)

Tables Icon

Table 1. Prescription for the Wide-Field Wideband Telescope Objective

Tables Icon

Table 2. Aspheric Coefficientsa for the Prescription of the Wide-Field Wideband Telescope Objective z(r)=r2/R(1+1(r/R)2)+α2r4+α3r6+α4r8+α5r10+α6r12+α7r14+α8r16

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