Update on the latest Nikon patents filed in Japan

Patent application 2010-186640 is for a flash with built-in cooling fan:

"Problem to be solved: to provide a heat radiation device for easily installing on an existing lighting device and surely radiating heat of light-emitting section."

Patent application 2010-186641 appears to be for a new small flash:

"Problem to be solved: to provide a lighting device for surely and effectively radiating heat of a light source and a battery only by circulating air through one passage."

Patents 2010-176015 though 2010-176018 all pertain to a 24mm f/2.8 or f/3.5 full frame lens:

f= 24.698
FNO= 2.9
omega = 41.86 "
Y= 21.6
TL= 74.298
sigmad = 36.297
BF= 38.000

f= 24.401
FNO= 3.62
omega = 42.31 "
Y= 21.6
TL= 66.423
sigmad = 28.400
BF= 38.023

Patent application 2010-181725 allows the camera to show detailed data for the attached lens. The interesting part is that one of the lenses listed as an example is 80-200mm G, maybe the "G" is just a typo:

"Problem to be solved: to provide a digital camera that is lens-interchangeable, making the lens constitution and operation of an interchangeable lens visually recognizable, arousing strong interest, and allowing exact use of a plurality of possessed interchangeable lenses..."

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