Concealed moiré pattern encoded security holograms readable by a key hologram

✍ Scribed by A.K. Aggarwal; Sushil K. Kaura; D.P. Chhachhia; A.K. Sharma

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 274 KB
• Volume: 38
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/j.optlastec.2004.10.010