FINGERPRINT IDENTIFICATION APPARATUS
First Claim
1. A fingerprint identification apparatus, comprising:
- a light-transmitting device having a pressing surface;
an image-capture device disposed opposite to the light-transmitting device and having a plurality of pixel regions; and
a collimator disposed between the light-transmitting device and the image-capture device, wherein the collimator comprises;
a plurality of light-shielding layers; and
a plurality of light-transmitting layers alternately stacked with the light-shielding layers, wherein each of the light-shielding layers has a plurality of openings respectively corresponding to the pixel regions, openings of the light-shielding layers corresponding to one pixel region are arranged along an oblique direction, the oblique direction and a normal direction of the pressing surface have an included angle θ
, and 0°
<
θ
<
90°
.
1 Assignment
0 Petitions
Accused Products
Abstract
A fingerprint identification apparatus including a light-transmitting device, an image-capture device disposed opposite to the light-transmitting device, and a collimator disposed between the light-transmitting device and the image-capture device is provided. The collimator includes a plurality of light-shielding layers and a plurality of light-transmitting layers that are alternately stacked. Each of the light-shielding layers has a plurality of openings respectively corresponding to a plurality of pixel regions of the image-capture device. Openings of the plurality of light-shielding layers corresponding to one pixel region are arranged along an oblique direction. The oblique direction and a normal direction of a pressing surface of the light-transmitting device have an included angle θ, and 0°<θ<90°.
-
Citations
17 Claims
-
1. A fingerprint identification apparatus, comprising:
-
a light-transmitting device having a pressing surface; an image-capture device disposed opposite to the light-transmitting device and having a plurality of pixel regions; and a collimator disposed between the light-transmitting device and the image-capture device, wherein the collimator comprises; a plurality of light-shielding layers; and a plurality of light-transmitting layers alternately stacked with the light-shielding layers, wherein each of the light-shielding layers has a plurality of openings respectively corresponding to the pixel regions, openings of the light-shielding layers corresponding to one pixel region are arranged along an oblique direction, the oblique direction and a normal direction of the pressing surface have an included angle θ
, and 0°
<
θ
<
90°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A fingerprint identification apparatus, comprising:
-
a light-transmitting device having a pressing surface; an image-capture device disposed opposite to the light-transmitting device and having a plurality of pixel regions; and a collimator disposed between the light-transmitting device and the image-capture device, wherein the collimator has a plurality of first optical channels and a plurality of second optical channels, the first optical channels are extended in a first oblique direction, the first oblique direction and a normal direction of the pressing surface have an included angle θ
1, 0°
<
θ
1<
90°
, the second optical channels are extended in a second oblique direction, the second oblique direction and the normal direction of the pressing surface have an included angle θ
2, 0°
<
θ
2<
90°
, and the first oblique direction and the second oblique direction are staggered. - View Dependent Claims (13, 14, 15, 16, 17)
-
Specification