| 摘要 |
FIELD: biometric identification of person. ^ SUBSTANCE: device can be used for scanning papillary patterns of fingers, palms, foot etc. Device has light source, projection optical system and photoreceiver assembly made integral and submerged into immersion fluid, which fills volume behind surface perceiving prints. The surface is made in form of hollow body of rotation, through which body of rotation the hard shaft passes, which shaft is connected with body of rotation. Members of integral unit are tightly connected with shaft. Shaft and hollow body of rotation are made for rotation one relatively other. ^ EFFECT: reduced sizes; reduced costs of device. ^ 2 cl, 1 dwg |
