KR900010179Y1 - Optical reading apparatus - Google Patents
Optical reading apparatus Download PDFInfo
- Publication number
- KR900010179Y1 KR900010179Y1 KR2019880003539U KR880003539U KR900010179Y1 KR 900010179 Y1 KR900010179 Y1 KR 900010179Y1 KR 2019880003539 U KR2019880003539 U KR 2019880003539U KR 880003539 U KR880003539 U KR 880003539U KR 900010179 Y1 KR900010179 Y1 KR 900010179Y1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- light emitting
- reading device
- barcode
- convex lens
- Prior art date
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Classifications
-
- 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
Abstract
내용 없음.No content.
Description
제1a, b도는 종래 독취장치의 분해사시도 및 일부 절개단면도.1a, b is an exploded perspective view and a partial cutaway cross-sectional view of a conventional reading device.
제2a, b도는 종래 독취장치의 바코드 독취시 바코드와의 거리 및 각도를 나타낸 예시도.Figure 2a, b is an illustration showing the distance and angle with the barcode when reading the barcode of the conventional reading device.
제3a, b도는 본 고안 독취장치의 분해사시도 및 일부절개 단면도.3a, b is an exploded perspective view and a partially cut cross-sectional view of the present devised reading device.
제4a, b는 본 고안 독취장치의 발광소자 사시도 및 내부 회로도.4a and b are a perspective view and an internal circuit diagram of a light emitting device of the inventive reading device.
제5a, b는 본 고안 독취장치의 바코드 독취시 바코드와의 거리 및 각도를 나타낸 예시도.5a, b is an exemplary view showing the distance and angle with the bar code when reading the bar code of the subject innovation reading device.
본 고안은 인쇄로 표시된 바코드(Bar code)의 값을 광학적으로 읽을 수 있도록 한 광학적 독취장치에 관한 것이다.The present invention relates to an optical reading apparatus for optically reading the value of a bar code marked by printing.
일반적으로 종래의 광학적 독취장치는 극쪽의 초점거리가 짧고 경도가 높으며 렌즈가 선단에 설치된 접촉형 독취장치를 사용하였으나, 이와같은 접촉형 독취장치는 바코드에 접촉시켜 읽을 수 있는 특성이 우수한 반면 조금이라도 바코드에서 떨어질 경우 읽을 수 없게되는 단점이 발생되었다.In general, the conventional optical reading device uses a contact reading device having a short focal length, high hardness, and a lens installed at the tip of the optical reading device. The disadvantage of falling off the bar code has occurred.
따라서, 근래에는 제1a, b도에 도시한 바와 같이 3개의 발광다이오드(1)를 반사축을 중심으로 하는 가상원상에 등간격으로 배열하고 발광다이오드(1)에서 나오는 빛을 바코드(2)에 조사시켜 반사되는 광을 발광다이오드(1)의 후방에 위치한 렌즈(3)를 통하여 상을 식별함으로써 수광소자(4)가 이를 받아들여 바코드(2)의 신호를 읽을 수 있게하여 왔다. 그러나, 이와 같은 독취장치는 제2a도에 도시한 바와 같이 발광다이오드(1)에서 발광된 빛이 바코드(2)에 조사됨에 있어서 직접 바코드(2)에 조사되어 집광력이 떨어짐으로써 독취장치는 바코드(2)와 거리(α1)만큼 분리되지 못하여 독취장치를 바코드(2)에 거의 접촉시켜야 하였으며, 제2b도에 도시한 바와같이 바코드(2)와 독취장치 사이의 각(θ1)을 25∼30°이상 기울일 수 없어 사용상 불편한 점이 많았다. 또한, 이러한 발광소자는 제조상 광의 지향성에 산란이 발생되고 취부면을 기준으로 하여 취부할 경우 각 발광소자의 주광축을 집광점에 합치 시킬 수 없어 효율저하의 원인이 되었다.Therefore, in recent years, as shown in FIGS. 1a and b, three light emitting diodes 1 are arranged at equal intervals on a virtual circle centered on a reflection axis, and the light emitted from the light emitting diodes 1 is irradiated to the barcode 2. The light reflected element 4 identifies the image through the lens 3 positioned behind the light emitting diode 1 so that the light receiving element 4 can receive the light and read the signal of the barcode 2. However, as shown in FIG. 2A, the reading device is directly irradiated to the bar code 2 when the light emitted from the light emitting diode 1 is irradiated to the bar code 2 so that the concentration of light is reduced. 2) and the distance (α 1 ) could not be separated so that the reading device was almost in contact with the bar code (2), as shown in Figure 2b the angle (θ 1 ) between the bar code 2 and the reading device 25 ~ It could not be tilted more than 30 °, so it was inconvenient to use. In addition, such light emitting devices are scattered in the directivity of light in manufacturing, and when mounted based on the mounting surface, the main light axis of each light emitting device cannot be matched to the condensing point, which causes a decrease in efficiency.
본 고안은 이와 같은 문제점을 감안하여 독취장치의 단부에 볼록렌즈를 설치함으로서 빛의 집광력을 높여 반사되는 광의 해상도를 높임과 아울러 발광다이오드를 일체로 몰딩하여 구성함으로써 발광부의 수리교환을 간편하게 할 수 있도록 한 것으로, 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.In view of the above problems, the present invention provides a convex lens at the end of the reading apparatus to increase the light condensing power, thereby increasing the resolution of the reflected light, and molding the light emitting diodes integrally so that repair and replacement of the light emitting unit can be simplified. If it is described in detail by the accompanying drawings as follows.
첨부된 도면 제3a, b도는 본 고안 독취장치의 분해 사시도 및 일부절개 단면도로써 일체로된 4개의 초소형 발광다이오드(10)가 반사광축을 중심으로 가상원상에 배열된 발광소자(11)를 단부가 돌출되어 캡(14)에 근접되도록 된 LED하우징(12)에 고착시키고, 상기의 LED하우징(12)은 발광소자(11)에서 발광되는 빛을 집광하기 위한 볼록렌즈(13)를 고정된 캡(14)에 결착시키며, 볼록렌즈(15)와 슬릿(16)이 고정된 슬릿 홀더(1)가 내삽된 지지대(18)와 빛을 수광하기 위한 수광소자(19)와 수광된 빛을 해독하기 위한 검파부(20)가 본체 케이스(21)에 고정되어 상기의 캡(14)과 일체로 구성된다.3a and b are exploded perspective and partial cutaway cross-sectional views of the inventive reading device, in which four ultra-small light emitting diodes 10 integrally project light emitting elements 11 arranged on a virtual circle around a reflective optical axis. To be attached to the LED housing 12 to be close to the cap 14, the LED housing 12 is a cap 14 fixed to the convex lens 13 for condensing the light emitted from the light emitting element (11) Slit holder (1) to which the convex lens (15) and the slit (16) are fixed, the support (18) interpolated, the light receiving element (19) for receiving light, and the detection for decoding the received light. The part 20 is fixed to the main body case 21, and is comprised integrally with the said cap 14 above.
또한, 제4a, b도는 본 고안 독취장치의 발광소자 확대 사시도 및 내부회로도로서 4개의 발광다이오드(10)가 단자(a)(b)에 각각 직, 병렬로 접속되어 가상원상에 일체로 몰딩됨으로써 2개의 단자로 연결 구성되어 LED하우징(12)에 단자공을 2개만 뚫어도 될 수 있게 되어 있다.4A and 4B are enlarged perspective views and internal circuit diagrams of a light emitting device of the inventive reader, and four light emitting diodes 10 are connected directly and in parallel to terminals a and b, respectively, to be molded integrally on a virtual circle. It is configured to be connected to two terminals so that only two terminal holes can be drilled in the LED housing 12.
이와 같이 구성된 본 고안 독취장치는 제5a도와 같이 발광다이오드(10)에서 발광된 빛이 볼록렌즈(13)에 의하여 굴절되어 바코드(22)에 조사됨에 있어서 빛의 수렴에 의하여 집광력이 향상됨으로써 바코드(22)와 독취장치의 단부인 렌즈(13)와의 거리(α1)를 종래 독취장치의 거리(α1)보다 약 2배이상 늘일수 있어 바코드(22)의 독취시 독취장치를 밀착시킬 필요가 없으며, 제5b도와 같이 바코드(22)와 독취장치의 기울기(θ2)도 볼록렌즈(13)의 집광력에 의하여 약 45°까지 기울일 수 있어 독취장치의 사용시 일반적인 펜의 사용과 같은 각으로 사용할 수 있음은 물론 바코드(22)에서 반사되는 빛을 볼록렌즈(13) 및 볼록렌즈(15)에 의하여 수광함으로써 해상도를 향상시켜 정확한 신호판독을 할 수 있는 것이다.In the reading device of the present invention configured as described above, the light emitted from the light emitting diodes 10 is refracted by the convex lens 13 and irradiated to the bar code 22 so that the condensing power is improved by converging the light. 22) and the distance α 1 between the lens 13, which is an end of the reading device, can be increased by about two times or more than the distance α 1 of the conventional reading device, so that the reading device needs to be closely attached when reading the barcode 22. As shown in FIG. 5B, the inclination (θ 2 ) of the barcode 22 and the reading device may also be inclined by about 45 ° by the condensing force of the convex lens 13, and thus, the reading device may be used at the same angle as that of a general pen. Of course, the light reflected from the bar code 22 is received by the convex lens 13 and the convex lens 15 to improve the resolution so that accurate signal reading can be achieved.
또한 4개의 발광다이오드(10)가 일체로 구성되어 장시간 사용이나 외부의 충격등에 의한 단선시에도 몰딩구성된 발광소자(11)의 교환으로써 간단히 수리할 수 있으며, 제작시에도 공정의 단순화를 이룰 수 있는 것이다.In addition, the four light-emitting diodes 10 are integrally formed so that they can be easily repaired by replacing the molded light-emitting element 11 even when disconnected due to long time use or external impact, and can simplify the process even during manufacturing. will be.
이상에서와 같이 본 고안 독취장치는 4개의 발광다이오드가 입체로 구성된 발광소자를 사용함으로써 빛의 집광력을 높임은 물론 볼록렌즈에 의한 빛의 수렴에 의하여 정확한 바코드의 판독을 할 수 있는 유용한 고안인 것이다.As described above, the read device of the present invention is a useful design that can accurately read a barcode by converging the light by convex lenses as well as increasing the light condensing power by using four light emitting diodes having three-dimensional light emitting elements. .
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880003539U KR900010179Y1 (en) | 1988-03-16 | 1988-03-16 | Optical reading apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880003539U KR900010179Y1 (en) | 1988-03-16 | 1988-03-16 | Optical reading apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890019787U KR890019787U (en) | 1989-10-05 |
| KR900010179Y1 true KR900010179Y1 (en) | 1990-11-03 |
Family
ID=19273275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880003539U KR900010179Y1 (en) | 1988-03-16 | 1988-03-16 | Optical reading apparatus |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900010179Y1 (en) |
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1988
- 1988-03-16 KR KR2019880003539U patent/KR900010179Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR890019787U (en) | 1989-10-05 |
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