KR950028439A

KR950028439A - How to display the focus position

Info

Publication number: KR950028439A
Application number: KR1019940004587A
Authority: KR
Inventors: 서성준
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1994-03-09
Filing date: 1994-03-09
Publication date: 1995-10-18
Also published as: KR0172322B1

Abstract

본 발명은 VCR에서 링포커스(1)를 사용, MF구동을 하여 피사체를 촬영하는 경우, MF모드가 마이컴(3)에 인식되면 마이컴(3)은 AF모터구동부(4)를 제어하여 AF모터(M)를 현재의 포커스렌즈 위치까지 NEAR구동(혹은 FAR구동)을 하여 리세트 체크가되면 다시 NEAF구동(혹은 FAR구동)의 클럭수만큼 반대구동을 함으로써 현재의 포커스렌즈의 정확한 위치를 OSD문자 발생부(5)를 통해 뷰파인더에 표시한다.In the present invention, when the subject is photographed by MF driving using the ring focus 1 in the VCR, when the MF mode is recognized by the microcomputer 3, the microcomputer 3 controls the AF motor driver 4 to control the AF motor ( M) is driven to the current focus lens position by NEAR driving (or FAR driving), and when reset check is performed, the counter is driven as many times as the clock number of NEAF driving (or FAR driving) to generate the OSD character. It is displayed in the viewfinder through section 5.

상기와 같이 현재의 포커스렌즈 위치가 파악되면 사용자는 뷰파인더에 표시되는 포커스의 상태를 확인하면서 촬영을 할 수 있게 되어 순간포착등 빠른 이동 피사체에 대한 기화상실을 줄 일 수 있다.As described above, when the current focus lens position is detected, the user can take a picture while checking the state of the focus displayed in the viewfinder, thereby reducing the loss of vaporization of the fast moving subject such as the instant capture.

Description

How to display the focus position

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 포커스 위치 표시기능을 갖는 VCR의 개략적 블럭도,1 is a schematic block diagram of a VCR having a focus position indicating function of the present invention;

제2도는 본 발명을 설명하기 위한 플로우챠트,2 is a flow chart for explaining the present invention,

제3도는 OSD 포커스 위치의 일예를 도시한 도면.3 shows an example of an OSD focus position.

Claims

A method for displaying the position of focus when a user photographs a subject by using the ring focus 1 by selecting a MF mode with a manual focus (MF) selection switch; Determining the current position of the focus lens when the MF mode is switched; And displaying the position in the viewfinder when the position of the focus lens is recognized by the microcomputer (3).

The microcomputer 3 controls the AF motor driving unit 3 to perform the NEAR driving (FAR driving) to the position of the current focus lens by controlling the AF motor driving unit 3 when switching to the MF mode. A method of displaying a focus position, wherein the exact position of the current focus lens is recognized by performing reverse driving by the number of clocks of the FAR drive.

According to claim 1, when the position of the current focus lens is known, the microcomputer outputs data to the OSD character generator 5 and its position is displayed on the viewfinder, and then the ring focus 1 is driven by NEAR driving or FAR. How to display the focus position when driving the MF of the camcorder that allows the user to easily adjust the focus because the position changes with the driving.

※ Note: The disclosure is based on the initial application.