JPH01106934U

JPH01106934U -

Info

Publication number: JPH01106934U
Application number: JP1987201504U
Authority: JP
Priority date: 1987-12-29
Filing date: 1987-12-29
Publication date: 1989-07-19

Description

[Brief explanation of drawings]

第１図および第２図は本考案の一実施例を説明
するためのもので、第１図は一方の光素子群の発
光素子側の要部断面図、第２図はこの発光素子の
出射光と各光素子群の配置との関係を示す説明図
、第３図ないし第５図は１組の光素子群にて構成
される光学式座標入力装置を説明するためのもの
で、第３図はこの座標入力装置を表示装置の前面
に装着した状態を示す斜視図、第４図はこの座標
入力装置の受光素子側の要部断面図、第５図はこ
の座標入力装置の内部構造を示す背面図、第６図
は２組の光素子群にて構成される光学式座標入力
装置の各光素子群を示す斜視図である。１……枠体、４ａ，４ｂ……発光素子、５ａ，
５ｂ……受光素子、１０……先端壁部（遮光壁）
、１１ａ，１１ｂ……光路、１３ａ……第１の光
素子群、１３ｂ……第２の光素子群、１４ａ，１
４ｂ……発光素子列、１５ａ，１５ｂ……受光素
子列。 Figures 1 and 2 are for explaining one embodiment of the present invention. Figure 1 is a sectional view of the main part of one optical element group on the light emitting element side, and Figure 2 is an output of this light emitting element. Explanatory diagrams showing the relationship between emitted light and the arrangement of each optical element group, FIGS. 3 to 5 are for explaining an optical coordinate input device composed of one set of optical element groups. The figure is a perspective view showing this coordinate input device attached to the front of the display device, FIG. 4 is a cross-sectional view of the main part of this coordinate input device on the light receiving element side, and FIG. 5 shows the internal structure of this coordinate input device. The rear view shown in FIG. 6 is a perspective view showing each optical element group of the optical coordinate input device composed of two optical element groups. 1...Frame body, 4a, 4b...Light emitting element, 5a,
5b... Light receiving element, 10... Tip wall portion (light shielding wall)
, 11a, 11b... optical path, 13a... first optical element group, 13b... second optical element group, 14a, 1
4b... Light emitting element row, 15a, 15b... Light receiving element row.

Claims

[Scope of utility model registration request]

Two sets of rectangular frame-shaped optical elements each having a large number of light-emitting elements and light-receiving elements arranged in rows are provided, and each of the above-mentioned lights is provided in front of two display devices arranged in parallel with their respective display surfaces tilted inward. The coordinate position on the display surface of each display device can be determined by attaching one set of element groups and detecting the position where the optical path formed between the light emitting element and the light receiving element of each optical element group is interrupted. In the optical coordinate input device for input, the above 2
The mutually adjacent substantially parallel sides of the optical element groups of the set are made up of a light emitting element row and a light receiving element row, and at least the light emitting element row of one of the optical element groups that is paired with this light receiving element row is covered with the corresponding light emitting element row. 1. An optical coordinate input device comprising a light-shielding wall for blocking light emitted from a light-emitting element toward a light-receiving element of the other optical element group.