Foldable binocular and blank therefor

Details Foldable binocular and blank therefor Foldable binocular and blank therefor

G - Physics

02

B

229/13, 88/18

G02B 7/08 (2006.01) G02B 7/12 (2006.01) G02B 23/18 (2006.01)

Patent

CA 1272403

ABSTRACT A one-piece blank of thin semi-rigid material, such as cardboard, formed into a series of rectangular panels hingedly connected at parallel foldlines and two trapezoidal pairs of interlocking flaps, may be easily assembled to form a foldable binocular. One panel contains a pair of objective lenses and another panel contains a pair of ocular lenses. When folded, the objective lenses, and optionally the ocular lenses, are protected from scratches and smudges by a pair of rectangular flaps formed by glueing certain panels together before assembly.

518176

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