Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Feature Issues

Full color natural light holographic camera

Myung K. Kim

Open Access Open Access

Abstract

Full-color, three-dimensional images of objects under incoherent illumination are obtained by a digital holography technique. Based on self-interference of two beam-split copies of the object’s optical field with differential curvatures, the apparatus consists of a beam-splitter, a few mirrors and lenses, a piezo-actuator, and a color camera. No lasers or other special illuminations are used for recording or reconstruction. Color holographic images of daylight-illuminated outdoor scenes and a halogen lamp-illuminated toy figure are obtained. From a recorded hologram, images can be calculated, or numerically focused, at any distances for viewing.

©2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Incoherent off-axis Fourier triangular color holography

Yuhong Wan, Tianlong Man, and Dayong Wang
Opt. Express 22(7) 8565-8573 (2014)

Multiwavelength-multiplexed phase-shifting incoherent color digital holography

Takayuki Hara, Tatsuki Tahara, Yasuyuki Ichihashi, Ryutaro Oi, and Tomoyoshi Ito
Opt. Express 28(7) 10078-10089 (2020)

Theoretical and experimental demonstration of resolution beyond the Rayleigh limit by FINCH fluorescence microscopic imaging

Joseph Rosen, Nisan Siegel, and Gary Brooker
Opt. Express 19(27) 26249-26268 (2011)

View More...

Supplementary Material (1)

Media 1: MOV (33329 KB)     

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)
Fig. 1
Fig. 1 Apparatus for CSIDH. L’s: lenses; M’s: mirrors; BS: beam-splitter.

Download Full Size | PDF

Fig. 2
Fig. 2 CSIDH of a white LED flash light. (A) A frame capture of the CCD camera. (B) Amplitude and (C) phase of the complex hologram for the red, green, and blue channels. The phase images are plotted with blue-white-red color scale representing the range [−π, π] . (D) Numerically focused images from the hologram for the three color channels. (E) Full color holographic images. The best focus image in the middle panel is at 30 mm and the other panels are at 20 and 40 mm before and after the best focus.

Download Full Size | PDF

Fig. 3
Fig. 3 CSIDH of a toy boat and a die under halogen lamp illumination. (A) Amplitude and phase of the hologram for the red channel. (B) Numerically focused images from the hologram for the three color channels. (C) A cell phone camera image for comparison. (D) Full color focused image. (E) Full color image at distances 20 and 40 mm before and after the best focus, at 30 mm.

Download Full Size | PDF

Fig. 4
Fig. 4 CSIDH of an outdoor scene under clear daylight illumination. (A) Amplitude and phase of the hologram for the red channel. (B) Numerically focused images from the hologram for the three color channels. (C) A cell phone camera image for comparison. (D) Full color focused image. (E) Full color image at distances 20 and 40 mm before and after the best focus, at 60 mm.

Download Full Size | PDF

Fig. 5
Fig. 5 (Media 1) A movie demonstrating the focusing property of a CSIDH. Frames of the movie are calculated at distances 0 ~100 mm, at 1 mm interval, from the same recorded hologram. Two frames from the movie show the image focused (A) on the close toy boat, at about 30 mm, and (B) on the distant buildings, at about 60 mm.

Download Full Size | PDF

Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use