JPS6030439U

JPS6030439U - Light source device for additive color enlarger

Info

Publication number: JPS6030439U
Application number: JP12243683U
Authority: JP
Inventors: 安元　秀敏; 谷本　哲行
Original assignee: ミノルタ株式会社
Priority date: 1983-08-05
Filing date: 1983-08-05
Publication date: 1985-03-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案第１実施例を用いた加色式カラー引伸機
の光学系の概略図、第２図は同第１図実施例の光源の平
面的配置状態を示す説明図、第３図は本考案第２実施例
の要部概略縦断面図、第４図は本考案第３実施例の要部
概略縦断面図であり、第５、第６図は線状光源の他の配
置例を示す要部概略縦断面図である。２Ｒ，２Ｇ、２Ｂ；赤、緑、青色光用線状光源、４Ｒ，
４Ｇ、４Ｂ；反射器、６Ｒ，６Ｇ、　６Ｂ；赤、緑、青
色フィルタ、８；拡散板、１０；散光ボックス、１２；
フィルム面、１４；投影レンズ、１６；イーゼル面、１
８．１８Ｇ、１８Ｂ；透過拡散板。Fig. 1 is a schematic diagram of the optical system of an additive color enlarger using the first embodiment of the present invention, Fig. 2 is an explanatory diagram showing the planar arrangement of the light sources of the embodiment of Fig. The figure is a schematic vertical cross-sectional view of the main part of the second embodiment of the present invention, FIG. 4 is a schematic longitudinal cross-sectional view of the main part of the third embodiment of the present invention, and FIGS. 5 and 6 are other arrangements of the linear light source. FIG. 2 is a schematic vertical sectional view of a main part showing an example. 2R, 2G, 2B; Linear light source for red, green, and blue light, 4R,
4G, 4B; Reflector, 6R, 6G, 6B; Red, green, blue filters, 8; Diffusion plate, 10; Diffusion box, 12;
Film surface, 14; Projection lens, 16; Easel surface, 1
8.18G, 18B; Transmission diffuser plate.

Claims

【実用新案登録請求の範囲】１　投影光学系の光軸に直角に交わるよう赤色光用線状
光源を配設し、該光軸に関して互に対称で且つ互に平行
で、前記赤色光用線状光源と直交又は平行するように緑
色光及び青色光用線状光源を配設し、赤色光用光源の光
は直接、緑色光、清色光用光源の光は拡散反射後、二次
面光源となる拡散板を照明するようにしたことを特徴と
する加色式カラー引伸機の光源装置。２　緑色光及び青色光用光源は、散光ボックスの拡散壁
に向けられていることを特徴とする実用新案登録請求の
範囲第１項記載の光源装置。３　緑色光及び青色光用光源は赤色光用光源と略同方向
を向き、透過拡散板を介して二次面光源となる拡散板を
照明するようにされたことを特徴とする実用新案登録請
求の範囲第１項記載の光源装置。４　ピント検出等のための照明用線状光源を、赤色光、
緑色光及び青色光用光源と二次面光源となる拡散板との
間に配設したことを特徴とする実用新案登録請求の範囲
第１項記載の光源装置。５　ピント検出等のための照明用光源を光軸に直交し、
且つ赤色光用光源と直角をなすように配設されたことを
特徴とする実用新案登録請求の範囲第４項記載の光源装
置。[Claims for Utility Model Registration] 1. Linear light sources for red light are disposed to intersect at right angles to the optical axis of the projection optical system, and the linear light sources for red light are symmetrical and parallel to each other with respect to the optical axis. A linear light source for green light and blue light is arranged perpendicularly or parallel to the light source for red light, and the light from the light source for red light is reflected directly, and the light from the light source for green light and clear color light is diffusely reflected and then reflected as a secondary surface light source. A light source device for an additive color enlarger, characterized in that it illuminates a diffuser plate. 2. The light source device according to claim 1, wherein the light sources for green light and blue light are directed toward a diffusion wall of a diffusion box. 3. A request for registration of a utility model characterized in that the light sources for green light and blue light are oriented in substantially the same direction as the light source for red light, and illuminate a diffuser plate that serves as a secondary surface light source through a transmission diffuser plate. The light source device according to item 1. 4 The linear light source for illumination for focus detection etc. is red light,
The light source device according to claim 1, wherein the light source device is disposed between a light source for green light and blue light and a diffuser plate serving as a secondary surface light source. 5 The illumination light source for focus detection etc. is perpendicular to the optical axis,
The light source device according to claim 4, wherein the light source device is arranged at right angles to the red light source.