Finger print image input device

Abstract

Abstract PURPOSE:To attain image pickup without defocusing and to obtain the same image at the time of inputting the finger print of the same finger between the same kind of devices by accurately combining a prism and a guide. CONSTITUTION:The convex type projected part 9 of the prism 2 is inserted into the hole 10 of the guide 3 to position them. Consequently, the prism 2 and the guide 3 are correctly assembled. When a finger 5 is put on a setting face 12, the part of a finger print necessary for image pickup is correctly set up on the upper detecting area 8 of the convex type projected part 9 of the prism 2 to obtain a focused image.

Inventors

• 👤 Shunji Ono
• 👤 俊二 小野

Bibliographic Details