396 / | HD | PHOTOGRAPHY |
89 | DF | WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28} |
111 | .~ Optical detail with photoelement system {8} | |
112 | DF | .~.~> Double wedge prism |
113 | DF | .~.~> Microprism or lenslet |
114 | DF | .~.~> Dual reimage lens type |
115 | DF | .~.~> Photosensor area with unique edge pattern |
116 | DF | .~.~> Scanning type {1} |
118 | DF | .~.~> Moving photocell |
119 | DF | .~.~> Photoelements with different optical path lengths |
120 | DF | .~.~> With Position Sensitive Device (PSD) |