JPH0378356U

JPH0378356U -

Info

Publication number: JPH0378356U
Application number: JP13841689U
Authority: JP
Priority date: 1989-11-28
Filing date: 1989-11-28
Publication date: 1991-08-08

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すバーコードリ
ーダの一部の断面図、第２図は本実施例における
半導体レーザ及び投光光学系部分の分解斜視図、
第３図は第２図の組立状態を示す斜視図、第４図
は本実施例におけるバーコードリーダの外観図、
第５図は本考案の他の実施例を示す半導体レーザ
及び投光光学系部分の分解斜視図、第６図は第５
図の組立状態を示す斜視図である。なお図中１０はケーシング、１１は光学読取ユ
ニツト、１２，１２Ａは半導体レーザ、１３は投
光光学系、２６は焦点距離変更機構、２９は操作
部材、３０ａ〜３０ｃは平行平面ガラスである。 FIG. 1 is a cross-sectional view of a part of a barcode reader showing an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a semiconductor laser and a light projection optical system in this embodiment.
FIG. 3 is a perspective view showing the assembled state of FIG. 2, FIG. 4 is an external view of the barcode reader in this embodiment,
FIG. 5 is an exploded perspective view of a semiconductor laser and a projection optical system showing another embodiment of the present invention, and FIG.
It is a perspective view showing the assembled state of the figure. In the figure, 10 is a casing, 11 is an optical reading unit, 12 and 12A are semiconductor lasers, 13 is a projection optical system, 26 is a focal length changing mechanism, 29 is an operating member, and 30a to 30c are parallel plane glasses.

補正平２．１１．７実用新案登録請求の範囲を次のように補正する
。Amendment 2.11.7 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】バーコード読取用光源と、前記読取用光源からの光を集束して対象物に照
射する投光光学系と、対象物から反射する光を集束して受光素子に結
像する集光レンズと、を備えたバーコードリーダにおいて、対象物に対する光の集束位置を可変とした光屈
折部材を前記読取用光源と投光光学系との間もし
くは投光光学系と対象物との間に設け、前記光屈折部材をその光の集束位置が変化する
方向に変位させる操作手段を設けたこと特徴とす
るバーコードリーダ。[Claims for Utility Model Registration] A barcode reading light source; a light projecting optical system that focuses light from the reading light source and irradiates it onto an object; and a light receiving element that focuses light reflected from the object. A barcode reader equipped with a condensing lens that forms an image, and a light refracting member that changes the focusing position of light on the object, between the reading light source and the light projection optical system or between the light projection optical system and the object. What is claimed is: 1. A barcode reader comprising: an operating means disposed between the light refracting member and an object for displacing the light refracting member in a direction in which the focusing position of the light changes;

Claims

[Claims for Utility Model Registration] A barcode reading light source; a light projecting optical system that focuses light from the reading light source and irradiates it onto an object; and a light receiving element that focuses light reflected from the object. A barcode reader equipped with a condensing lens that forms an image, and a light refracting member that changes the focusing position of light on the object, between the reading light source and the light projection optical system or between the light projection optical system and the object. An operation means is provided between the light refraction member and the object and displaces the light refraction member in a direction in which the light focusing position changes, and the operation means includes a support member that supports the light refraction member so as to be operable from the outside; A barcode reader comprising: a locking mechanism that locks a support member at a plurality of predetermined positions.