From the pinhole camera to the shape of a lens: the camera-obscura reloaded

2015 ◽  
Vol 50 (6) ◽  
pp. 706-712 ◽  
Author(s):  
Max Ziegler ◽  
Burkhard Priemer
Leonardo ◽  
2008 ◽  
Vol 41 (5) ◽  
pp. 438-445 ◽  
Author(s):  
Edgar Lissel

Edgar Lissel has been using the camera obscura for more than 10 years. He converted a transporter into a mobile pinhole camera and transformed living quarters and museum displays into walk-in pinhole cameras. Since 1999, Lissel has been working with bacteria, using their phototropic properties to produce his images. The bacteria move out of the shadow into the light. In the photographic installations Mnemosyne I and Mnemosyne II, he uses fluorescent color pigments to fix the images. Like a memory, the image is stored and emitted by the pigments.


2020 ◽  
pp. 140-141
Author(s):  
Tony M. Bingham

Ancestral Light Capture: Camera Obscura -...light rays entering the eye and light rays entering the glass globe placed inside a small camera obscura - Codex Atlanticus, fol 337, ca 1500 Leonardo Da Vinci..".I select cast off materials to create my cameras, and with them, construct an imagery that interprets the humanity of a cast off people". "A Second of Your Time" Prospect 1.5 Biennial 2010, New Orleans. I found fragments of glass bottles and glass shards, through wanderings in the back spaces of buildings behind the town square in Marion, Alabama and in the East Smithfield community in Birmingham. a community erased through highway construction. Those glass fragments (Da Vinci's" Glass Globe"), functioned as a lens for allowing the light to pass through, capturing the spiritual memories of those black folks who last touched the glass. The passage of the light from the glass fragments was embedded onto the film, which had been placed inside my small camera obscura/pinhole camera.


2019 ◽  
Vol 15 (S367) ◽  
pp. 176-180
Author(s):  
Rosa M. Ros ◽  
Beatriz García ◽  
Ricardo Moreno ◽  
Claudia Romagnoli ◽  
Viviana Sebben

AbstractIbn al-Haytham (known as Alhazen in occident), extensively studied the camera obscura phenomenon in the early 11th century. This instrument was used to obtain the projected image of a landscape on the screen and also was addopte by the scientists and famous painters along the centuries, to experiment with it until their final evolution as the modern photografic camera. The resource in the simple version of the “pinhole camera” can be used at the classroom to experience several phenomena, such us solar eclipses and Moon phases, and to each about optics and geometry. This contribution presents an application of this ingeniuos tool in the framework of solar eclipses, where the scale models are important to understand what really happens with the Sun-Earth-Moon system.


2010 ◽  
Vol 16 (5) ◽  
pp. 777-790 ◽  
Author(s):  
Voicu Popescu ◽  
Paul Rosen ◽  
Laura Arns ◽  
Xavier Tricoche ◽  
Chris Wyman ◽  
...  

Author(s):  
Koki Sueoka ◽  
Jun Kataoka ◽  
Miho Takabe ◽  
Yasuhiro Iwamoto ◽  
Makoto Arimoto ◽  
...  

2009 ◽  
Vol 57 (3) ◽  
pp. 162-166
Author(s):  
I Stephenson
Keyword(s):  

2016 ◽  
Vol 841 ◽  
pp. 192-197
Author(s):  
Constantin Radu Mirescu ◽  
Gabriela Roșca

For Motion Capture in Gait Analysis using Known Spherical Markers one simple direct approach is to compute the projection of the Marker Center using its projection in the Pixel Plane and based on it to find the location of the Marker on the line that connects the Marker Center Projection and the camera Focal Point. For various positions of the Marker in the workspace the exact image of the marker is computed using a genuine approach and compute back the approximation of the position based on the generated image. Various algorithms are taken in consideration and finally the results are assessed from the point of view of Gait Analysis and two directions for calculus improvement are identified.


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