Inventor

PETTERSSON ERLAND

SE4 patents

⚠️ This page may combine multiple inventors who share the name “PETTERSSON ERLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BOFORS AB

2 patents

US4896031AJan 23, 1990

Proximity fuse optical radiation receiver having wedge-shaped damping filter positioned adjacent photocell

BOFORS AB15 citations65

US4458147AJul 3, 1984

Apparatus for evaluating optical signals

BOFORS AB2 citations57

HASSELBLAD AB VICTOR

2 patents

US5839004ANov 17, 1998

Device and method for facilitating the focusing of a camera

HASSELBLAD AB VICTOR0 citations38

US5884113AMar 16, 1999

Device and method for minimizing vignetting and stray light in a photographic apparatus

HASSELBLAD AB VICTOR0 citations35