JP2001333171A - Mobile phone with camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of a conventional mobile phone with camera that has had a remarkable difference of a focal position between a general photographing and a magnified photographing of the iris of a talker for the purpose of person authentication because the person authentication of a possessor of the mobile phone is required attended with multimedia application of the mobile phone, incorporation of the camera is generalized and the built-in camera can be used for a tool for the person authentication to effective utilization of it. SOLUTION: A movable lens is provided in front of an existing objective lens so as to considerably change a focal position when the movable lens is employed and not employed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a camera-equipped mobile phone having a personal authentication function.

[0002]

2. Description of the Related Art In recent years, mobile phones have evolved not only as tools for speaking but also as personal information terminals. Furthermore, it is becoming a tool for electronic payment. When a mobile phone changes to this character, who owns it and who is occupying it now becomes a very important point. That is, the personal authentication function of the person occupied by the mobile phone is indispensable. On the other hand, mobile phones are incorporating cameras that capture images as information terminals. This camera shoots the speaker of the mobile phone and its surroundings (people and scenery).

[0003] Here, it is considered that it is advisable to use this camera for personal authentication of a mobile phone. The iris of the human eye is unique to each individual, and it is possible to identify individuals by recognizing this iris pattern.

[0004] However, this camera is for photographing the speaker and its surroundings, and is not for photographing with the speaker's eyes enlarged.

[0005] As a remedy, it is sufficient if one camera has a mode for photographing the speaker and its surroundings, and a mode for enlarging and photographing the speaker's eyes.

[0006]

The problem to be solved is that when an existing camera is used for personal authentication, the focus of the camera lens is determined when photographing the speaker or its surroundings and when photographing the speaker's eyes. The point at which is set is markedly different.

[0007]

SUMMARY OF THE INVENTION The present invention is characterized in that a movable lens is provided in front of an objective lens of a camera. By moving a movable portion, a lens does not enter or exit before the objective lens. . If a lens is placed in front of the objective lens, the focal length will be further shortened, and it will be possible to enlarge the speaker's eyes. When the lens in front of the objective lens is removed from the front by moving the lens, the focal length of the original objective lens becomes the same, and the speaker and its surroundings can be photographed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A movable lens which slides left and right or up and down is provided in front of an objective lens of a camera-equipped mobile phone. When the movable lens is in front of the objective lens, the focal length of the objective lens becomes short as a whole, and the mode becomes a mode for photographing the speaker's eyes. In addition, if the movable lens is removed from the front of the objective lens, it will be in the general shooting mode. The movable lens employs a sliding system, but it may be a rotating system, a door opening system, or a detachable system.

[0009]

FIG. 1 shows an embodiment of the present invention. A portable telephone (6) is equipped with a liquid crystal display (5). This liquid crystal displays images captured by the other party's camera-equipped mobile phone. The slide base (2) moves left and right on the slide rail (1), and a movable lens (4) or a cavity (3) is placed on an objective lens (not shown) of the main body.
Is designed to come.

By moving the slide base (2) in this manner, a mode for photographing the speaker and its surroundings and a mode for enlarging and photographing the speaker's eyes are set.

[0011] To know whether the occupant of the mobile phone is the owner or not, and when personal authentication is required, move the slide base (2) to bring the movable lens (4) in front of the objective lens. For general use of mobile phones, hollow (3)
Bring in front of the objective lens.

In personal authentication for enlarging and photographing an iris, first, an iris of a true owner is photographed and patterns and feature points of the iris are registered. Later, the iris of the person who is going to be authenticated is photographed, and the iris pattern and feature points are compared with the registrant to determine whether they match. In addition, commercially available image sensors and video signal processing and authentication algorithms are sufficient for authentication.

[0013]

[0014]

[0015]

[0016]

[0017]

As described above, the camera-equipped mobile phone of the present invention is characterized in that the authentication of the owner of the mobile phone, which is indispensable these days, is performed by the existing camera equipped with the mobile phone. It will be cheaper. 2, small and light.
3. Macro photography is possible in addition to the eyes.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a method for implementing the present invention. (Example 1)

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide rail 2 Slide stand 3 Hollow (or glass) 4 Movable lens 5 Liquid crystal display device 6 Mobile phone with camera

Claims (2)

[Claims] 1. A mobile phone with a camera, wherein a movable lens is provided in front of an objective lens of the camera. 2. The camera-equipped mobile phone, which is capable of authenticating an individual by the position of a movable lens.