Die microlensjes waren er altijd al.Léon Obers schreef: Met die microlensjes voor de pixels ligt dat net even wat anders. Die zitten er om meer licht te verzamelen, om het verlies aan lichtrendement zoveel mogelijk te beperken bij alsmaar kleiner wordende pixels met toenemende resolutie.
Ze worden nu alleen geoptimaliseerd. Minder ruimte tussen de microlenses en kleinere ruimtes tussen de diodes om meer licht te verzamelen
En in de hoeken zo geplaatst dat ze zoveel mogelijk licht in de diode krijgen, dus in de hoeken niet recht boven de diode.
BRON : http://www.nikon.com/about/technology/c ... /index.htm
En deze :
BRON : http://imaging.nikon.com/products/imagi ... /index.htm
Takeishi:
The larger sensor made it difficult to effectively gather light from the photographic lens onto the pixels around the periphery of the image plane. Compared to the DX sensor, the light comes into the periphery of the sensor at a much more slanted angle. In order to collect this light without any loss, we tested many designs and carried out numerous simulations and experiments.
Dat lukt dus niet helemaal...Takeishi:
We devised a configuration in which a micro-lens and a photodiode are optimally placed on each individual pixel, so that even light slanting in from the photographic lens can be condensed into the photodiode. Since the photodiode's function is to store light in the form of electronic signals, condensing light efficiently—even around the periphery of the sensor—is of key importance. Specifically, in addition to the optimal placement of the central position of the micro-lens and the photodiode, the use of thinner sensor chips also allowed components to be spaced at an optimum distance from one another. In addition, the adoption of a gapless micro-lens and an inner lens allowed all incident light (whether striking the sensor straight on or at an oblique angle) to be directed to the photodiodes with the minimum of loss. By means of this technology, we were able to eliminate the influence of the optical axis angle—even at the sensor's periphery.
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