CN203324017U

CN203324017U - Performance test system for camera VCM motor

Info

Publication number: CN203324017U
Application number: CN201320374104XU
Authority: CN
Inventors: 钟岳良; 杨培坤; 孙伟; 李成
Original assignee: Kunshan Q Technology Co Ltd
Current assignee: Kunshan Q Technology Co Ltd
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2013-12-04
Anticipated expiration: 2023-06-26

Abstract

The utility model discloses a performance test system for a camera VCM motor. The performance test system for the camera VCM motor comprises a computer equipped with system test control software, a VCM driver, a test unit and an acquisition unit, wherein the computer is in communication connection with the VCM driver, the VCM driver can drive a VCM motor to be tested to do reciprocating motion relative to the test unit, the test unit is used for testing focusing value change and hysteresis of a lens in a reciprocating motion process of the VCM motor to be tested, the acquisition unit is used for acquiring test data of the test unit and transmitting the data to the computer, and analysis, calculation, storage and display of the test data are carried out by the system test control software in the computer. The performance test system for the camera VCM motor is convenient and simple to operate, not only solves a focusing problem of certain focal length when the handset is blocked by a foreign matter from the VCM motor or camera products, improves production efficiency and guarantees product quality, but also reduces production cost and facilitates product production.

Description

The Performance Test System of VCM motor for camera

Technical field

The utility model relates to camera detection technique field, relates in particular to the Performance Test System of a kind of camera with the VCM motor.

Background technology

The VCM motor is the important component part in the camera module, and it has not only determined the automatic focusing ability of camera module, is also the critical component of a camera module performance excellence of judgement simultaneously.But in the process of existing camera module volume production; often can move bad phenomenon due to VCM motor top shell fragment or the bad VCM of the causing motor of mover; thereby cause camera module sharpness nonlinearities change, can't normally be focused, affect the quality of product.

At present, the manufacturer of camera module mostly utilizes laser detection equipment to be tested the VCM motor performance, but the price of laser detection equipment is high, thereby has strengthened the production cost of camera module.

Summary of the invention

In order to overcome above-mentioned defect, the utility model provides the Performance Test System of a kind of camera with the VCM motor, and this Performance Test System is easy and simple to handle, can either to the VCM motor performance, be tested accurately, has improved production efficiency, has guaranteed product quality; Reduce again production cost, be beneficial to production.

The utility model for the technical scheme that solves its technical matters and adopt is: the Performance Test System of VCM motor for a kind of camera, camera comprises eyeglass and VCM motor, eyeglass is arranged on the VCM motor, this Performance Test System comprises the computing machine that system testing control software is housed, the VCM driver, test cell and collecting unit, wherein, described computing machine is connected with described VCM drive communication, described VCM driver can drive the relatively described test cell of VCM motor to be measured to be moved back and forth, described test cell reaches back stagnant the test for the focus value variation that eyeglass is moved back and forth to process in this VCM motor to be measured, described collecting unit is gathered for the test data to test cell, and be transferred to computing machine, system testing in described computing machine is controlled software this test data is analyzed, calculate, storage and demonstration.

As further improvement of the utility model, described VCM driver is connected by the RS232 serial ports with described computing machine.

As further improvement of the utility model, described collecting unit is image pick-up card, is installed with the electric connection that connects camera to be measured in order to buckle on described image pick-up card, and described image pick-up card is connected with described computing machine by USB interface.

As further improvement of the utility model, described test cell comprises nearly burnt light source, and described nearly burnt light source is fixed positioned in the top of described image pick-up card, and the light that described nearly burnt light source sends can be projected to the electric connection place on described image pick-up card.

The beneficial effects of the utility model are: this Performance Test System is by utilizing nearly burnt light source to carry out the nearly burnt test of AF to the process that moves back and forth of the relatively near burnt light source of VCM motor to be measured, the focus value data that collecting unit goes out nearly burnt test of light source are gathered, and be transferred to computing machine, system testing in computing machine is controlled software and is used assignment algorithm to be calculated these focus value data, draw, obtain the focus value curve, by the linear change slope to focus value in curve, analyzed, just can quick and precisely show that the VCM motor has or not abnormal problem in moving back and forth process.The utility model is easy and simple to handle, and both having solved the reasons such as foreign matter is arranged in because of VCM motor self or camera product interception certain focal length on mobile phone can't, to clear problem, improve production efficiency and guarantee product quality; Reduce again production cost, be beneficial to production.

The accompanying drawing explanation

Fig. 1 is the utility model principle of work schematic diagram.

By reference to the accompanying drawings, make the following instructions:

1---computing machine 2---VCM driver

3---nearly burnt light source 4---image pick-up card

50---VCM motor 51---eyeglass

Embodiment

With reference to the accompanying drawings embodiment of the present utility model is elaborated.

The Performance Test System of VCM motor for a kind of camera of the present utility model, camera comprises eyeglass 51 and VCM motor 50, eyeglass is arranged on the VCM motor, this Performance Test System comprises the computing machine 1 that system testing control software is housed, VCM driver 2, test cell and collecting unit, wherein, described computing machine 1 and described VCM driver 2 communication connections, described VCM driver 2 can drive the relatively described test cell of VCM motor to be measured to be moved back and forth, described test cell reaches back stagnant the test for focus value (the being sharpness) variation that eyeglass is moved back and forth to process in this VCM motor to be measured, described collecting unit is gathered for the test data to test cell, and be transferred to computing machine 1, system testing in described computing machine 1 is controlled software this test data is analyzed, calculate, storage and demonstration.Reach back the performance condition of the stagnant VCM of judgement motor by the variation of focus value, both having solved the reasons such as foreign matter is arranged in because of VCM motor self or camera product interception certain focal length on mobile phone can't reduce again production cost to clear problem, is beneficial to production.

In the present embodiment, described VCM driver 2 is connected by the RS232 serial ports with described computing machine 1.

In the present embodiment, described collecting unit is image pick-up card 4, is installed with the electric connection that connects camera to be measured in order to buckle on described image pick-up card, and described image pick-up card is connected with described computing machine 1 by USB interface.

In the present embodiment, described test cell comprises nearly burnt light source 3, described nearly burnt light source is fixed positioned in the top of described image pick-up card by support, and the light that described nearly burnt light source sends can be projected to the electric connection place (being in camera to be measured) on described image pick-up card.

Camera described in the utility model by the method for testing of the Performance Test System of VCM motor is:

1) nearly burnt light source 3 is fixed positioned in the top of image pick-up card 4 by support, system testing in computing machine 1 is controlled software and is sent control command by the RS232 serial ports to VCM driver 2, and driver 2 drives the relatively described nearly burnt light source 3 of VCM motor 50 to be measured to be moved back and forth up and down;

2) light that nearly burnt light source 3 sends can be projected in the camera to be measured on described image pick-up card, and the eyeglass 51 be arranged on VCM motor to be measured is carried out to the nearly burnt test of AF;

3) the focus value data of 4 pairs of nearly burnt tests of image pick-up card are gathered, and by this focus value data transmission to computing machine 1, system testing in computing machine 1 is controlled software and is used assignment algorithm to be calculated, draw these focus value data, obtain the focus value curve, analyzed by the linear change slope to focus value in curve, just can quick and precisely be shown that the VCM motor moves back and forth in process and has or not abnormal problem at it.

Claims

1. the Performance Test System of VCM motor for a camera, camera comprises eyeglass and VCM motor, eyeglass is arranged on the VCM motor, it is characterized in that: this Performance Test System comprises the computing machine (1) that system testing control software is housed, VCM driver (2), test cell and collecting unit, wherein, described computing machine (1) and described VCM driver (2) communication connection, described VCM driver (2) can drive the relatively described test cell of VCM motor to be measured to be moved back and forth, described test cell reaches back stagnant the test for the focus value variation that eyeglass is moved back and forth to process in this VCM motor to be measured, described collecting unit is gathered for the test data to test cell, and be transferred to computing machine (1), system testing in described computing machine (1) is controlled software this test data is analyzed, calculate, storage and demonstration.

2. the Performance Test System of VCM motor for camera according to claim 1, it is characterized in that: described VCM driver (2) is connected by the RS232 serial ports with described computing machine (1).

3. the Performance Test System of VCM motor for camera according to claim 1, it is characterized in that: described collecting unit is image pick-up card (4), be installed with the electric connection that connects camera to be measured in order to buckle on described image pick-up card, and described image pick-up card is connected with described computing machine (1) by USB interface.

4. the Performance Test System of VCM motor for camera according to claim 3, it is characterized in that: described test cell comprises nearly burnt light source (3), described nearly burnt light source is fixed positioned in the top of described image pick-up card, and the light that described nearly burnt light source sends can be projected to the electric connection place on described image pick-up card.