Hologram read system

摘要

The invention relates to a hologram read system capable of viewing a minute object that is authentication information located behind a block object in a specific direction alone, that is, a hologram read system adapted to view a minute object from a hologram wherein the minute object located behind a block object is recorded such that the minute object is blocked off by the block object and invisible upon viewing in a given direction, but visible from a direction different from said given direction. The hologram read system here comprises a light block housing 22 open at both its ends. A lighting substrate 23 with a viewing window 24 provided in its center is located at a given distance from the lower end 22 d. A magnifying lens 25 adapted to magnify and view a hologram image constructed from the hologram located facing an opening at the lower end 22 d is attached over the upper end 22 u. Arrays 40 ₁ , 40 ₂ of point light sources adapted to emit visible light are located at the lower surface of the lighting substrate 23 except for the viewing window 24 , so that the any point light source in them can be selectively put on.