JPS5850423U

JPS5850423U - Display device in the viewfinder of a single-lens reflex camera

Info

Publication number: JPS5850423U
Application number: JP14695781U
Authority: JP
Inventors: 康雄山崎; 谷本　哲行; 弘向井
Original assignee: ミノルタ株式会社
Priority date: 1981-10-01
Filing date: 1981-10-01
Publication date: 1983-04-05

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

[Brief explanation of the drawing]

第１図は、現在知られているＬＣＤの平面図、第２図乃
至第４図は夫々この考案の第１、第２、第３実施例を示
す光学系断面図、第５図イはこの考案の第４実施例の後
面図、第５図四ま第４実施例におけるペンタプリズムの
側面図、第６図イは第１、第２実施例によるファインダ
ー視野を示す図、第６図口は第３実施例によるファイン
ダー視野を示す図、第６図ハは第４実施例によるファイ
ンダー視野を示す図である。Ｌ＊ｅｍペアタブリズム、４ａ、　　４ｂ、　　４ｃ、
　　４ｃｔ・・・・・・光透過部、８・・曲液晶表示板
、Ｊ、ＣＤ、１０゜１２．１４，２０，２２，２４，２
６，２８゜３０．３２・・・・・・導光手段。FIG. 1 is a plan view of a currently known LCD, FIGS. 2 to 4 are cross-sectional views of the optical system showing the first, second, and third embodiments of this invention, respectively, and FIG. FIG. 5 is a side view of the pentaprism in the fourth embodiment, FIG. FIG. 6C is a diagram showing the viewfinder field of view according to the third embodiment, and FIG. 6C is a diagram showing the viewfinder field of view according to the fourth embodiment. L*em pair tab rhythm, 4a, 4b, 4c,
4ct...Light transmitting part, 8...Curved liquid crystal display board, J, CD, 10°12.14, 20, 22, 24, 2
6,28°30.32...Light guide means.

Claims

[Scope of Claim for Utility Model Registration] 1. In a display device in the viewfinder of a single-lens reflex camera that uses a liquid crystal display board to display desired information within the viewfinder field of view, a portion of the surface of the pentaprism that does not contribute to the formation of the viewfinder field or A light transmitting part is formed in a part of the area outside the effective optical path of the surface of the pentaprism that contributes to the formation of the viewfinder field, and the finder light emitted from this light transmitting part is guided into the pentaprism again by a light guiding means. , a single-lens reflex camera in which a liquid crystal display plate is placed within the optical path of the finder light that is emitted from the light transmitting part and then reintroduced into the pentaprism, and at a position that avoids the bottom surface of the pentaprism. Display device in the viewfinder. 2. The light transmitting portion is formed in a part of the surface surrounded by the front reflective surface of the pentaprism and the pair of roof surfaces, while another light transmitting portion is formed in a part of the area outside the effective optical path on the front reflective surface of the pentaprism. A display device in a finder of a single-lens reflex camera according to claim 1, wherein the light guiding means is arranged to introduce the finder light into the pentaprism from the latter light transmitting part. . 3. The light transmitting section and another light transmitting section are respectively formed in a part of the area outside the effective optical path on the front reflective surface of the pentaprism, and the light guiding means directs the finder light from the latter light transmitting section. A display device in a finder of a single-lens reflex camera according to claim 1, which is arranged to be introduced into a prism. 4. The light transmitting section is formed in a part of the area outside the effective optical path on the front reflective surface of the pentaprism, and the light guiding means is arranged so as to introduce the finder light into the pentaprism again from the light transmitting section. A display device in a viewfinder of a single-lens reflex camera according to claim 1. 5. The single-lens camera according to claim 1 of the utility model registration, wherein the light transmitting portion is formed on the side surface of the pentaprism, and the light guiding means is arranged so as to introduce the finder light into the pentaprism from the lower surface of the pentaprism. Display device in the viewfinder of a flex camera. 6. An in-finder display device for a single-lens reflex camera according to any one of claims 1 to 5, wherein the light transmitting portion through which the finder light exits is a light diffusing surface.