Common Aperture DSLR Camera Design Approach with Diffractive Lens

Abstract

Digital Single-Lens Reflex (DSLR) cameras have widespread applications across various fields. Yet, their reliance on eyepieces poses limitations on their functionality. To address this constraint, a comprehensive optical system approach utilizing specialized diffractive optical elements, enabling concurrent focusing on both the viewfinder and the image sensor has been developed in this study. The effectiveness of this innovative design approach has been verified through comparative analysis with conventional separated ideal lenses. The outcome of the simulations was shared, and this study is expected to pave the way for advanced optical system designs and inspire novel approaches in camera technology development.

Keywords

• Digital Single Lens Reflex Camera
• Optical System Design
• Diffractive Optical Element

Kaynakça

1. [1] A. Bauer and J. P. Rolland, "Design of a freeform electronic viewfinder coupled to aberration fields of freeform optics," (2015), Opt. Express 23, 28141-28153 https://doi.org/10.1364/OE.23.028141
2. [2] A. Bauer, M. Pesch, J. Muschaweck, F. Leupelt, and J. P. Rolland, (2019), "All-reflective electronic viewfinder enabled by freeform optics," Opt. Express 27, 30597-30605 https://doi.org/10.1364/OE.27.030597
3. [3] A. Bauer and J. P. Rolland, (2014), "Visual space assessment of two all-reflective, freeform, optical see-through head-worn displays," Opt. Express 22, 13155-13163 https://doi.org/10.1364/OE.22.013155
4. [4] A. H. Incekara, D. Z. Seker, A. Delen, and A. Acar, Investigating The Suitability Of Mirrorless Cameras In Terrestrial Photogrammetric Applications, (2017), “ISPRS Annals of the Photogrammetry”, Remote Sensing and Spatial Information Sciences, IV-4/W4, 259--262, DOI 10.5194/isprs-annals-IV-4-W4-259-2017
5. [5] J. M. Ryu, G. M. Gang, H. K. Lee, K. Lee, M. Heu, and J. H. Jo, (2015), "Optical Design and Fabrication of a Large Telephoto Zoom Lens with Fixed f/2.8 and Light Autofocus Lens", J. Opt. Soc. Korea 19, 629-637, https://opg.optica.org/josk/abstract.cfm?URI=josk-19-6-629
6. [6] S. Hamed, M. J. A. A. Salama, and M. M. M. Hassan, (2022), “Developments of the viewfinder system in digital photographic cameras”, 7, 4, 834-849, Arab Association for Islamic Civilization and Art, DOI : 10.21608/mjaf.2021.91869.2464
7. [7] A. Ünal, (2023), "Frequency selective diffractive optical element (FSDOE)", Proc. SPIE 12518, Window and Dome Technologies and Materials XVII, 125180C; https://doi.org/10.1117/12.2657048
8. [8] A. Ünal, (2024), “Analytical and numerical fresnel models of phase diffractive optical elements for imaging applications.”, Opt Quant Electron 56, 960 https://doi.org/10.1007/s11082-024-06906-6

9. [9] A. Ünal, (2024), “Electro-optical system, imaging infrared and laser range finder, design with dual squinted combined lens for aerial targets”. J Opt. https://doi.org/10.1007/s12596-024-02057-9
10. [10] A. Ünal, (2023), “Semi-active laser seeker design with combined diffractive optical element (CDOE)”. J Opt 52, 956–968 https://doi.org/10.1007/s12596-022-00954-5
11. [11] A. Ünal, (2023), “Laser seeker design with multi-focal diffractive lens”, Eng. Res. Express 5 045014, DOI 10.1088/2631-8695/ad0024
12. [12] A. Ünal, (2024), “Dual mode, imaging infrared and semi-active laser, seeker design with squinted combined diffractive optical element”. J Opt https://doi.org/10.1007/s12596-024-01657-9
13. [13] S. Lim, B. H. Ko, K. S. Park, et al. (2012), “Design of mirror system in digital single lens reflex camera for high-speed continuous shooting”, Microsyst Technol 18, 1487–1496. https://doi.org/10.1007/s00542-012-1578-x
14. [14] B. S. Yoon, and T.R. Anderson, (2014), "Comparison of Technological Performance between Digital Single-Lens Reflex Cameras and Mirrorless Cameras", Advances in Business and Management Forecasting (Advances in Business and Management Forecasting, Vol. 10), Emerald Group Publishing Limited, Leeds, pp. 55-71, https://doi.org/10.1108/S1477-407020140000010015
15. [15] D. Atwood, (2000) Soft X-Rays and Extreme Ultraviolet, Cambridge University Press
16. [16] L. N. Hazra, Y. Han, C.A. Delisle, Kinoform lenses: (1995), “Sweatt model and phase function”, Optics Communications, Volume 117, Issues 1–2, Pages 31-36, https://doi.org/10.1016/0030-4018(95)00071-F
17. [17] L. Hazra and C. A. Delisle, (1997), "Higher order kinoform lenses: diffraction efficiency and aberrational properties," Optical Engineering 36(5), https://doi.org/10.1117/1.601375
18. [18] L. N. Hazra, Y. Han, C. Delisle, (1992), “Curved kinoform lenses for stigmatic imaging of an axial object at infinity”, Optics Communications, Volume 90, Issues 4–6, Pages 201-206, https://doi.org/10.1016/0030-4018(92)90260-X
19. [19] J. W. Goodman, (1996), Introduction to Fourier Optics, Second Edition, McGraw-Hill Series
20. [20] R. E. Blahut, (2004), Theory of Remote Image Formation, Cambridge University Press
21. [21] J. D. Schmidt, (2010), “Numerical Simulation of Optical Wave Propagation With examples in MATLAB”, SPIE Press
22. [22] T. W. N. Dickinson, (2016), "Simulation, Design, and Test of Square, Apodized Photon Sieves for High-Contrast, Exoplanet Imaging". Theses and Dissertations. https://scholar.afit.edu/etd/336
23. [23] Y. Peng, (2018), “Computational Imaging with Diffractive Optics”, A Thesis Submitted In Partial Fulfıllment Of The Requirements For the Degree Of Doctor Of Philosophy, The University of British Columbia April DOI : 10.14288/1.0365608
24. [24] Y. Peng, Q. Fu, F. Heide, W. Heidrich, (2016), “The Diffractive Achromat: Full Spectrum Computational Imaging with Diffractive Optics” ACM Trans. Graph. 35, 4, Article 31 (July 2016), https://doi.org/10.1145/2897824.2925941
25. [25] X. Zhang, Z. Yang, T. Sun, H. Yang, K. Han, B. Hu, (2017), "Optical system design with common aperture for mid-infrared and laser composite guidance," Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102560S doi: 10.1117/12.2256433
26. [26] Barış, M., Metin, F. C., Karabulut, N. K., Özyücel, F. Ö. (2018). 8-125 MM KOLEMANİT CEVHERİNİN NIR/CCD OPTİK AYIRICI İLE ZENGİNLEŞTİRİLMESİ. Gazi University Journal of Science Part C: Design and Technology, 6(2), 414-425. https://doi.org/10.29109/http-gujsc-gazi-edu-tr.344767