JPS59104662U

JPS59104662U - Optical system of solid-state reader

Info

Publication number: JPS59104662U
Application number: JP19582282U
Authority: JP
Inventors: 三小田　知生
Original assignee: 株式会社リコー
Priority date: 1982-12-28
Filing date: 1982-12-28
Publication date: 1984-07-14

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 drawings]

−第１図は本考案による光学系を具備する固体読取装置
の全体図、第２図は光重装置の各部材の正面図、第３図
は光量調整板の開口幅と光路幅との関係を示す図、第４
図はオシロスコープ上の光電変換素子の信号波形を示す
図、第５図は光学装置の別の実施例を示す側面図、第６
図は第５図に示す光学装置の１部の拡大斜視図、第７図
は第５図および第６図の実施例に用いる光量調整板の平
面図である。１・・・固体読取装置、２・・・光源、３・・・反射板
、４・・・補正板、５・・・コンタクトガラス、訃・・
光学装置１．１３・・・レンズ、１４・・・プリント板
、１６．２２・・・光量調整板。- Figure 1 is an overall view of a solid-state reading device equipped with an optical system according to the present invention, Figure 2 is a front view of each member of the optical heavy equipment, and Figure 3 is the relationship between the aperture width of the light amount adjusting plate and the optical path width. Figure 4 showing
The figure shows the signal waveform of the photoelectric conversion element on the oscilloscope, FIG. 5 is a side view showing another embodiment of the optical device, and FIG.
This figure is an enlarged perspective view of a part of the optical device shown in FIG. 5, and FIG. 7 is a plan view of a light amount adjustment plate used in the embodiment of FIGS. 5 and 6. DESCRIPTION OF SYMBOLS 1... Solid-state reader, 2... Light source, 3... Reflector, 4... Correction plate, 5... Contact glass, Death...
Optical device 1.13...Lens, 14...Printed board, 16.22...Light amount adjustment plate.

Claims

[Scope of utility model registration request]

In the optical system of a solid-state reading device, the optical system of a solid-state reading device includes means for ensuring illuminance on the document surface above a certain level, and means for optically forming an image of information on the document surface on the light-receiving surfaces of a plurality of photoelectric conversion elements. An optical system characterized in that a light amount adjusting means is provided in the optical path up to the surface.