KR950016237A

KR950016237A - Optical system

Info

Publication number: KR950016237A
Application number: KR1019930024551A
Authority: KR
Inventors: 최환문
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1995-06-17
Also published as: JPH07199020A; CN1115037A

Abstract

본 발명은 광학 시스템을 개시한다.The present invention discloses an optical system.

본 발명은, 경통과, 상기 경통의 내면에 스페이서에 의해 소정간격 유지된채 다수 배열 형성되며 피사체의 화상을 촬상소자에 결상시키는 다수의 렌즈군을 구비하는 광학 시스템에 있어서, 상기 다수의 렌즈군 사이에 적어도 하나 이상의 복수개의 순차 차광 수단을 마련하여 경통의 내벽면으로 부터 반사되는 반사광을 차단하도록 된 것으로서, 피사체로 부터의 주사되는 광원이 갖고 있는 수차에 따라 그 투과율을 달리 함으로써 보다 선명한 화상을 촬상소자에 결상시킬수 있으며, 특히 내벽면에 반사되어 발생되는 그림자등의 허상(ghost)이나 희미한 영상(flare)이 결상되는 것을 최대한으로 억제할 수 있다. 이에 더하여 합성 수지물인 경통의 내벽면에 용이하게 차광부재를 설치할 수 있어 그 만큼 제품의 소형경량화를 도모할 수 있는 이점이 있다.The present invention provides an optical system comprising a plurality of lens groups formed on the inner surface of the barrel and spaced by a spacer at a predetermined interval and forming an image of a subject on an image pickup device. At least one or more sequential shading means are provided between the blocks to block the reflected light reflected from the inner wall surface of the barrel. The imaging device can form an image, and in particular, it is possible to suppress the formation of a ghost or a faint image such as a shadow generated by reflection on the inner wall surface to the maximum. In addition, the light shielding member can be easily installed on the inner wall surface of the barrel, which is a synthetic resin, and thus, there is an advantage that the weight of the product can be reduced.

Description

Optical system

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

제1도는 종래 광학 시스템을 개념적으로 도시한 개략적 단면도.1 is a schematic cross-sectional view conceptually illustrating a conventional optical system.

제2도는 본 발명에 따른 광학 시스템을 개념적으로 도시한 개략적 단면도,2 is a schematic cross-sectional view conceptually illustrating an optical system according to the present invention;

제3도는 제2도의 일부 발췌 정면도.3 is a front view of a part of the excerpt of FIG.

Claims

An optical system including a plurality of lens groups formed on the inner surface of the barrel and spaced by a spacer at predetermined intervals, and configured to form an image of a subject on an image pickup device, the optical system including: at least one of the plurality of lens groups; And a plurality of sequential shading means as described above to block reflected light reflected from the inner wall surface of the barrel.

According to claim 1, The light shielding means is interposed between the lens group, the inner surface is formed with a transmission groove of a predetermined size around the optical axis direction of the barrel, the center of the transmission groove An optical system comprising a light blocking member having a lower transmittance toward the inner wall surface.

The optical system according to claim 2, wherein the light blocking member is supported on an inner wall surface of the barrel.

The optical system according to claim 2, wherein the light blocking member is supported on an inner circumferential surface of the spacer.

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