Dai Nippon Printing Co., Ltd.

Emi Takabayashi

Masachika Watanabe

Kenji Ueda

Tsuyoshi Kashiwagi

Daijiro Kodama

Daijiro Kodoma

Masachika Watanaba

The invention relates to a color hologram display an image of a three-dimensional object and a hologram image of a pattern of plane characters, images or the like are recorded in the same volume type hologram photosensitive material in a superposed or multiplexed fashion. A color hologram displaycomprising a combined reflection and volume type of single layer, wherein a color patternof plane characters, images or the like and a color three-dimensional subject image O&#x2033; are reconstructably recorded while spatially superposed one upon another.

Color hologram display and its fabrication process

A full-color hologram capable of generating a bright image and reproducing colors in all color regions is formed by multiple recording or multilayer recording with four different dominant wavelengths for reconstruction. The full-color hologram has one reconstruction wavelength in the vicinity of the peak wavelength 555 nm of the spectral luminous efficiency curve, i.e. in the range of 550 nm to 560 nm, and further has three other reconstruction wavelengths in the three primary color regions of red, blue and green, i.e. in the three regions of 615 nm to 680 nm, 380 nm to 470 nm, and 485 nm to 515 nm, respectively.

Full-color hologram and method of producing the same

Growing community of inventors

Tokyo, Japan

Emi Takabayashi