KR900010611Y1 - Beam scanner - Google Patents
Beam scanner Download PDFInfo
- Publication number
- KR900010611Y1 KR900010611Y1 KR2019880005659U KR880005659U KR900010611Y1 KR 900010611 Y1 KR900010611 Y1 KR 900010611Y1 KR 2019880005659 U KR2019880005659 U KR 2019880005659U KR 880005659 U KR880005659 U KR 880005659U KR 900010611 Y1 KR900010611 Y1 KR 900010611Y1
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- South Korea
- Prior art keywords
- light
- reflector
- lens
- reflected
- barcode
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1413—1D bar codes
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래 바코드 스캐너의 광주사 장치의 개략도.1 is a schematic diagram of an optical scanning device of a conventional barcode scanner.
제2도는 본고안 바코드 스캐너의 광주사 장치의 개략도.2 is a schematic diagram of an optical scanning device of the bar code scanner of the present invention.
제3도는 본고안 바코드 스캐너의 광주사 장치의 평면작동도.3 is a plan view of the optical scanning device of the bar code scanner of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
11 : 홀로그램렌즈 12 : 수광소자11 hologram lens 12 light receiving element
13 : 반사경 14 : 모터13: reflector 14: motor
15,15' : 반사경 16,16' : 지지대15,15 ': Reflector 16,16': Support
17,17' : 회전거울17,17 ': rotating mirror
본 고안은 바코드 스캐너(Bar Code Scanner)에 사용되는 광주사에 있어서 레이저 빔을 회전시켜 바코드에 기록된 정보를 읽을 수 있도록한 장치에 관한 것이다.The present invention relates to an apparatus for reading information recorded in a bar code by rotating a laser beam in an optical scanning used in a bar code scanner.
일반적으로 바코드 스캐너는 홀로그램의 회전을 이용하여 광을 주사시켜 바코드의 정보를 읽어내게 되는데 종래에는 제1도에 도시된 바와같이 홀로그램디스크를 회전시켜 주사 패턴을 형성시켰었다.In general, a barcode scanner scans light using a rotation of a hologram to read information of a barcode. In the related art, a barcode pattern is formed by rotating a hologram disk as shown in FIG.
즉 레이저 발진기에서 주사된 광은 집속렌즈(1,2)를 통해 확대시준되어져서 반거울(3)을 통과해 반사경(4)에 반사된 광이 모타(5)에 의해 회전하는 홀로그램 디스크(6)를 통과하며 회전된 수 반사경(7)에 의해 상품에 기록된 바코드(8)의 정보를 읽고 바코드(8)에 의해 역방향으로 산란되는 광을 상기한 반사경(7)을 통해 홀로그램 디스크(6)를 통과하여 집속되어 반사경(4)에 의해 반사되어 반거울(3)에 반사되어 수광 집속렌즈(9)를 통해 수광소자(10)에 광을 집속하여 바코드(8)에 기록된 정보를 읽을수 있도록 되어있다.That is, the light scanned by the laser oscillator is enlarged and collimated through the focusing lenses 1 and 2 so that the light reflected through the half mirror 3 and reflected by the reflector 4 is rotated by the motor 5. The hologram disk 6 through the reflector 7 to read the information of the barcode 8 recorded on the product by the rotated water reflector 7 and to be scattered in the reverse direction by the barcode 8. Focused through the light reflected by the reflector (4) and reflected by the half mirror (3) to focus the light on the light receiving element (10) through the light receiving focusing lens (9) to read the information recorded on the barcode (8) It is.
그러나 이러한 종래의 장치는 사이즈가 큰 홀로그램 디스크를 회전시키므로 모터의 구동부하가 커지므로 용량이 큰 모타를 사용해야 하며 또한 수광효율을 증가하기 위하여 수광소자 앞에서 광을 집속하는 수광렌즈를 사용하므로 기기가 복잡해지는 문제점이 있었다.However, this conventional device rotates a large hologram disk, so that the driving load of the motor is increased, so a large motor must be used, and the apparatus is complicated by using a light receiving lens that focuses light in front of the light receiving element in order to increase light receiving efficiency. There was a problem with getting lost.
본 고안은 상기와 같은 문제점을 해소하기 위한 것으로서 홀로그램 디스크를 고정시키고 반사되는 거리가 각기 다른 반사경을 모터로 회전시켜 홀로그램디스크에서 집속된 광을 회전시켜 바코드에 기록된 정보를 읽을수 있도록 하므로서 수광하고자 하는 광이 확산되기전에 집속하여 수광소자에 초점을 맺게 하므로 수광효율을 높이고 광 확대시준(Expanding)렌즈 중 한개와 수광렌즈를 공용으로 사용하므로 렌즈의 수를 감소하여 기기의 외관을 축소할 수 있을 뿐만아니라 반사 길이가 다른 지지대에 의해 반사경이 작동하므로서 종래 사용하던 홀로그램 디스크의 크기를 절반으로 줄일수 있어 경제적인 효율성을 높일수 있도록 함을 본 고안의 목적으로 한다.The present invention is to solve the problems as described above to fix the hologram disk and rotate the reflector with different reflection distance by the motor to rotate the light focused on the hologram disk to receive the information recorded on the barcode It focuses on the light-receiving element by focusing before light is diffused, thus improving light-receiving efficiency and using one of the light expanding collimating lenses and the light-receiving lens in common, thus reducing the number of lenses to reduce the appearance of the device. In addition, since the reflector is operated by a support having a different reflection length, the purpose of the present invention is to reduce the size of a conventional hologram disk by half and to increase economic efficiency.
이하 첨부된 도면에 의거 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
우선 제2, 3도를 참조하여 본 고안의 구성을 설명하면 홀로그램렌즈(11)와 수광소자(12)와 반사경(13)은 고정착설하고 모터(14)의 축 끝단에 2개의 반사경(15,15')을 서로 대향되게 설치하여 반사경(13)을 통해 입사되는 광을 길이가 서로다른 두개의 지지대(16,16')의 하단에 설치된 회전거울(17,17')에 반사할수 있도록 하며 상기 회전거울(17,17')에 의해 반사되는 광은 홀로그램렌즈(11)로 통과할수 있도록 지지대(16,16')의 선단측에 오목렌즈(18,18')를 부설하여서 된것으로서 도면중 미설명부호 20은 레이저 발진기, 21은 광집속렌즈, 22는 반거울, 23은 바코드이다.First, the configuration of the present invention will be described with reference to FIGS. 2 and 3, and the hologram lens 11, the light receiving element 12, and the reflector 13 are fixedly mounted, and the two reflectors 15, 15 ') are installed to face each other so that the light incident through the reflector 13 can be reflected to the rotating mirrors 17 and 17' installed at the lower ends of the two supports 16 and 16 'having different lengths. The light reflected by the rotating mirrors 17 and 17 'is formed by placing the concave lenses 18 and 18' on the front end side of the support 16 and 16 'so as to pass through the hologram lens 11. Reference numeral 20 is a laser oscillator, 21 is a light focusing lens, 22 is a half mirror, and 23 is a barcode.
이와 같이 구성된 본 고안의 작용효과는 첨부된 도면에 도시된 바와같이 레이저 발진기(20)에서 출사되는 광은 렌즈(21)를 통과하며 집속되어 반사경(13)에 의해 반사되어 모터(14)에 의해 회전되는 반사경(15)에 입사되면 이와 같이 회전하는 지지대(16)하단에 있는 회전거울(17)에 반사되어 오목렌즈(18)를 통과하여 확대시준되고 홀로그램렌즈(11)에서 화절되어 바코드(23)를 스캐닝(Scanning)하게 된다.As shown in the accompanying drawings, the effect of the present invention configured as described above is that the light emitted from the laser oscillator 20 is focused through the lens 21 and is reflected by the reflector 13 to be reflected by the motor 14. When incident on the reflecting mirror 15 is rotated, it is reflected by the rotating mirror 17 at the lower end of the rotating support 16. Thus, it is collimated through the concave lens 18. ) Will be scanned.
이후 바코드(23)에서 반사되어 역산란된 광은 다시 홀로그램렌즈(11)에 의해 회절되어 오목렌즈(8)를 통과하여 회전거울(17)에 반사되어 반사경(15)과 반거울(22)를 통해 수광소자(12)에 수광하게 된다.Then, the light reflected by the barcode 23 and back scattered is diffracted by the hologram lens 11 and passed through the concave lens 8 to be reflected on the rotating mirror 17 to reflect the reflector 15 and the half mirror 22. The light receiving element 12 is received through.
이때 지지대(16)선단에 설치된 오목렌즈(18)는 바코드(23)에서 반사되어 산란된 광이 집속되어 진행하여 수광소자에 초점을 맺도록 하는 작용을 한다.In this case, the concave lens 18 installed at the tip of the support 16 serves to focus the light receiving element by focusing the light scattered and scattered by the barcode 23.
이후 모터(14)의 회전에 의해 레이저 발진기(20)에서 출사된 광이 반사경(15)을 벗어나게 되면 대향된 위치에 있는 반사경(15')에 빛이 입사되어 반사경(17') 오목렌즈(18') 홀로그램렌즈(11)를 통과하여 바코드(23)를 스캐닝하게 되는 과정을 상기한 바와 동일하게 진행하게 되나 지지대(16)의 길이가 다르므로 홀로그램렌즈에는 제3도에 점선으로 도시한 바와 같은 두개의 주사궤적(a,b)을 그리게 되므로 2개의 광으로 스캐닝하는 효과를 발생하게 된다.Then, when the light emitted from the laser oscillator 20 is out of the reflector 15 by the rotation of the motor 14, light is incident on the reflector 15 ′ at the opposite position, and the concave lens 18 ′ of the reflector 17 ′ is provided. ') The process of scanning the barcode 23 through the hologram lens 11 is performed in the same manner as described above, but since the length of the support 16 is different, the hologram lens is shown in FIG. Since two scan trajectories a and b are drawn, an effect of scanning with two lights is generated.
상기한 바와 같이 본 고안에 의하면 홀로그램렌즈의 크기를 반으로 줄일수 있으며 수광렌즈와 확대시준렌즈를 공용으로 사용하므로 렌즈의 수를 줄일수 있어 수광효율을 증대하고 기기의 크기를 축소할 수 있어 기기의 소형경량화에 이바지 할수 있는 것이다.As described above, according to the present invention, the size of the hologram lens can be reduced in half, and since the light receiving lens and the zoom collimator lens are used in common, the number of lenses can be reduced, so that the light receiving efficiency can be increased and the size of the device can be reduced. It can contribute to the compact and light weight of the.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880005659U KR900010611Y1 (en) | 1988-04-20 | 1988-04-20 | Beam scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880005659U KR900010611Y1 (en) | 1988-04-20 | 1988-04-20 | Beam scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890021569U KR890021569U (en) | 1989-11-02 |
| KR900010611Y1 true KR900010611Y1 (en) | 1990-11-23 |
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ID=19274381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880005659U KR900010611Y1 (en) | 1988-04-20 | 1988-04-20 | Beam scanner |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900010611Y1 (en) |
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1988
- 1988-04-20 KR KR2019880005659U patent/KR900010611Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR890021569U (en) | 1989-11-02 |
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