JPH0314416U

JPH0314416U -

Info

Publication number: JPH0314416U
Application number: JP7528389U
Authority: JP
Priority date: 1989-06-27
Filing date: 1989-06-27
Publication date: 1991-02-14

Description

[Brief explanation of drawings]

第１図は本考案一実施例の分解斜視図、第２図
は同上の要部断面図、第３図ａは同上の要部断面
図、第３図ｂは同上の要部断面図、第４図および
第５図は同上の動作説明図、第６図は同上のブロ
ツク回路図、第７図は同上の測距誤差の比較説明
図、第８図は従来例の概略構成図、第９図および
第１０図は同上の動作説明図である。１……投光素子、２……投光レンズ、３……受
光レンズ、４……受光素子、４ａ，４ｂ……フオ
トダイオード、５……判別制御手段、６……レン
ズブロツク、７……回路基板である。 Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a sectional view of the main parts of the same, Fig. 3a is a sectional view of the main parts of the same, Fig. 3b is a sectional view of the main parts of the same, and Fig. 3b is a sectional view of the main parts of the same. 4 and 5 are explanatory diagrams of the same operation as above, FIG. 6 is a block circuit diagram of the same as above, FIG. 7 is a comparative illustration of distance measurement error as above, FIG. This figure and FIG. 10 are explanatory diagrams of the same operation. DESCRIPTION OF SYMBOLS 1... Light emitting element, 2... Light emitting lens, 3... Light receiving lens, 4... Light receiving element, 4a, 4b... Photodiode, 5... Discrimination control means, 6... Lens block, 7... It is a circuit board.

Claims

[Scope of Claim for Utility Model Registration] (1) Light emitted from a light projecting element is projected onto a detection area as a light beam by a light projecting lens, and the light reflected from the detected object of the light beam is collected by a light receiving lens. At the same time, when the object to be detected moves in the optical axis direction, the light is received by a light-receiving element formed by a pair of wedge-shaped photodiodes divided so that the direction of movement of the condensing spot is oblique to the dividing line, A triangulation type photoelectric switch in which the determination control means determines the presence or absence of an object based on the output of the light receiving element and controls the output circuit, in which the light emitting element, the light receiving element and the signal processing means are integrated. A photoelectric switch characterized in that an integrated circuit and a lens block that integrates a light emitting lens and a light receiving lens are directly disposed on the same circuit board. (2) One surface of the light-receiving lens is a toric surface, a light-receiving element is placed near the short focal point of the light-receiving lens, and the light reflected from the object to be detected is focused into a light-condensing spot in the direction of movement of the light-collecting spot. 2. The photoelectric switch according to claim 1, wherein the photoelectric switch is stretched in a direction perpendicular to .