KR20030042256A - Lens module of bar code pen scanner - Google Patents

Lens module of bar code pen scanner Download PDF

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Publication number
KR20030042256A
KR20030042256A KR1020010072952A KR20010072952A KR20030042256A KR 20030042256 A KR20030042256 A KR 20030042256A KR 1020010072952 A KR1020010072952 A KR 1020010072952A KR 20010072952 A KR20010072952 A KR 20010072952A KR 20030042256 A KR20030042256 A KR 20030042256A
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KR
South Korea
Prior art keywords
light receiving
lens
light
receiving hole
center
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KR1020010072952A
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Korean (ko)
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남인태
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남인태
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Priority to KR1020010072952A priority Critical patent/KR20030042256A/en
Publication of KR20030042256A publication Critical patent/KR20030042256A/en

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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
    • G06K7/10544—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
    • G06K7/10881—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 constructional details of hand-held scanners
    • 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
    • G06K2007/10485—Arrangement of optical elements
    • 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
    • G06K2007/10524—Hand-held scanners

Abstract

PURPOSE: A lens module of a barcode pen scanner is provided to maximize workability and production through a simplified structure by forming a module body divisionally, and installing a plurality of light emitting elements and a circular stopper double-filter, and to minimize an error by improving accuracy. CONSTITUTION: The module body is formed into an upper and a lower part. The grooves(13,13') are formed on respective screw parts(2,3). A light receiving hole(4) is formed on a center of a PCB(Printed Circuit Board)(8). The light emitting elements(7) are installed to a front surface of the PCB(8). The PCB(8) is connected by inserting a connection terminal(14) into the grooves(13,13'). A lens(9) is installed to a rear part of the light receiving hole(9). The circular stopper double-filter having the light receiving holes(10,10') of the different sizes is installed to the rear part of the lens(9). A photo-sensor(6) having a micro hole(12) at the center is installed to the rear part of the double-filter(11). The front light receiving hole(10) of the double-filter is larger than the rear light receiving holes(10').

Description

바코드 펜 스케너의 렌즈모듈{Lens module of bar code pen scanner}Lens module of bar code pen scanner

본 발명은 바코드 펜 스캐너에 있어서, 광선을 주사하고 이를 다시 되받아 수광하는 렌즈부를 하나의 모듈로 형성한 바코드 펜 스캐너의 렌즈모듈에 관한 것으로, 특히 모듈바디를 분리형성하고, 광선을 바코드에 주사시키는 주사장치를 다수의 발광소자로 구성하며, 반사된 광원을 필터링하는 원형 스토퍼 2중필터를 설치하므로서, 에러의 발생을 최소화 하여 그 정확도를 향상시킴은 물론, 구조를 단순화 하여 작업성과 생산성을 향상시킬 수 있는 바코드 펜 스케너의 렌즈모듈에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens module of a barcode pen scanner in which a lens unit for scanning a light beam and receiving the light again and receiving the light is formed as a module. The scanning device is composed of a plurality of light emitting elements, and by installing a circular stopper double filter for filtering the reflected light source, it is possible to minimize the occurrence of errors, improve the accuracy, and simplify the structure to improve workability and productivity. The lens module of the bar code pen scanner can be.

바코드 스캐너는 시각화된 바코드의 인쇄정보를 상응하는 전기적 신호로 변화시켜 주는 광학식 독취장치로서 바코드를 독취하여 전기적인 신호로 변환시키는 수단으로 주로 광학적인 인식방법이 사용된다.The barcode scanner is an optical reading device that converts the printed information of the visualized barcode into a corresponding electrical signal. As a means of reading a barcode and converting the barcode into an electrical signal, an optical recognition method is mainly used.

즉, 바코드는 그 길이와 무관하게 바코드의 두께 및 배열에 의하여 정보를 갖고 있으므로 그 패턴을 인식하기 위한 강력한 수단으로 광선을 바코드에 직접 주사(SCAN)하여 이때 발생되는 반사광의 세기를 광센서가 감지하도록 하므로서 전기적 신호를 유도하게 된다.That is, since the barcode has information by the thickness and arrangement of the barcode regardless of its length, the optical sensor detects the intensity of the reflected light generated by scanning the beam directly into the barcode as a powerful means to recognize the pattern. This will induce an electrical signal.

이와 같이 유도된 전기신호는 디지털화된 펄스 트레인으로 정형화되어 디코더에 전달되므로서 바코드 본래의 정보를 추출하는 것이다.The induced electrical signal is shaped into a digitized pulse train and transferred to the decoder to extract the original information of the barcode.

따라서, 근래에는 주사광선을 바코드상에 주사시키는 주사장치와 바코드로부터 반사되는 반사광을 집속시키는 집속장치를 하나의 모듈로 형성한 펜 스캐너가널리 사용되어지고 있다.Therefore, in recent years, pen scanners have been widely used in which a scanning device for scanning the scanning light onto a bar code and a focusing device for focusing the reflected light reflected from the bar code as one module.

이와 같은 종래의 펜 스캐너의 렌즈모듈의 구성을 보면, 광선을 발광주사하는 발광다이오드와, 그 반사광을 집광하는 렌즈와, 슬롯으로 빛을 모아 통과시키고 결합링에 의해 조립된 집광판을 일체의 관체로 된 모듈바디에 조합구성하였다.According to the structure of the lens module of the conventional pen scanner, a light emitting diode for emitting and emitting light beams, a lens for collecting the reflected light, and a light collecting plate assembled by a coupling ring by collecting light through the slots are integrated into one body. Combination was made in the module body.

그러나 상기와 같은 구성의 바코드 펜 스케너의 렌즈모듈은 일체로 형성된 관체상의 모듈바디에 렌즈 및 집광판, 결합링을 삽입하여 조립해야 하므로 조립작업이 매우 까다로워 제작시 많은 시간과 노력이 필요하게 되므로 생산성을 저하시키는 문제점이 있으며, 제작시 불량율이 높아지는 문제점이 있으며, 하나의 발광다이오드에 의한 발광으로 빛의 밝기가 약하고 렌즈를 통과한 빛의 산란 및 반사 현상이 심하여 바코드를 읽지 못하거나 잘못 읽어 에러가 발생할 경우가 허다 하였다.However, the lens module of the barcode pen scanner with the above-described configuration has to be assembled by inserting the lens, the light collecting plate, and the coupling ring into the integrally formed tubular module body. There is a problem of deterioration, and there is a problem of increasing the defective rate at the time of manufacture.Because of light emitted by one light emitting diode, the brightness of the light is weak and the scattering and reflection of light passing through the lens is severe, so that the barcode cannot be read or an error is read. There were many cases.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서,The present invention has been made to solve the above problems,

모듈바디를 분할 형성하고, 다수의 발광소자를 설치하며, 원형 스토퍼 2중 필터를 설치하여 그 구조를 단순화하므로서, 작업성과 생산을 극대화 하고, 정밀도를 향상시켜 에러의 발생률을 최소화 할 수 있는 바코드 펜 스케너의 렌즈모듈을 제공함에 본 발명의 목적이 있다.Barcode pen that divides the module body, installs multiple light emitting elements, and installs a circular stopper double filter to simplify its structure, maximizing workability and production, and improving precision to minimize the incidence of errors. An object of the present invention to provide a lens module of the scanner.

도 1 은 본 발명의 분리사시도.1 is an exploded perspective view of the present invention.

도 2 는 본 발명의 결합상태를 도시한 단면도.2 is a cross-sectional view showing a bonded state of the present invention.

도 3 은 본 발명의 작동설명도.3 is an operation explanatory diagram of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 모듈바디2 : 캡조립용 나사부1: Module body 2: Cap assembly screw

3 : 케이스 조립용 나사부4 : 수광홀3: Case assembly screw part 4: Light receiving hole

5 : 캡6 : 포토센서부5: cap 6: photo sensor

7 : 발광소자8 : 피씨비(PCB)7: light emitting element 8: PCB (PCB)

9 : 렌즈10,10' : 수광홀9: lens 10,10 ': light receiving hole

11 : 원형 스토퍼 2중 필터12 : 미세공11: round stopper double filter 12: fine hole

13,13' : 요홈부14 : 접속단자13,13 ': recess 14: connection terminal

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명의 분리사시도이고, 도 2 는 본 발명의 단면도이다.1 is an exploded perspective view of the present invention, Figure 2 is a cross-sectional view of the present invention.

외주면에 캡조립용 나사부(2)와 케이스 조립용 나사부(3)가 형성된 관체상의 바코드 펜 스케너의 렌즈모듈에 있어서,In the lens module of the tubular barcode pen scanner with a cap assembly screw portion 2 and a case assembly screw portion 3 formed on an outer circumferential surface thereof,

모듈바디(1)를 상하로 분리형성하고, 각각의 나사부(2)(3)상에 요홈부(13)(13')를 형성하며, 선단부에는 수광홀(4)을 형성하고, 그 전면에 다수의 발광소자(7)가 설치되고 중앙에 수광홀(4)이 형성된 피씨비(PCB)(8)를 요홈부(13)(13')에 접속단자(14)를 삽입하여 결합하고, 수광홀(4)의 후측에 렌즈(9)를 설치하며, 렌즈(9)의 후측에는 2개의 원판이 나란히 설치되어 중앙에 서로 다른 크기의 수광홀(10)(10')이 형성된 원형 스토퍼 2중필터(11)를 설치하고, 그 후측에는 중앙에 미세공(12)이 형성된 포토센서부(6)를 장착하여 구성한 것이다.The module body 1 is separated and formed up and down, and grooves 13 and 13 'are formed on each screw portion 2 and 3, and a light receiving hole 4 is formed at the front end thereof, PCB (8) having a plurality of light emitting elements (7) installed and a light receiving hole (4) formed in the center thereof is connected to the recess (13) and 13 'by inserting the connection terminal (14), and the light receiving hole. A circular stopper double filter in which a lens 9 is provided at the rear side of (4), and two discs are arranged side by side at the rear side of the lens 9, and light receiving holes 10 and 10 'of different sizes are formed in the center. (11) is provided, and the photo sensor part 6 in which the micropore 12 was formed in the center is attached to the rear side, and is comprised.

이때, 원형 스토퍼 2중 필터(11)의 전후측에 형성된 수광홀(10)(10')은 전측의 수광홀(10)이 후측의 수광홀(10')보다 크게 형성하는 것이다.At this time, in the light receiving holes 10 and 10 'formed at the front and rear sides of the circular stopper double filter 11, the front light receiving hole 10 is formed to be larger than the rear light receiving hole 10'.

이하, 본 발명의 작용을 살펴본다.Hereinafter, the operation of the present invention.

본 발명의 렌즈모듈을 조립시에는 상하분리되어 있는 모듈바디(1)의 내부에 렌즈(9)와 원형 스토퍼 2중필터(11) 및 포토센서부(6)를 장착한 후 분리되어 있는모듈바디(1)를 서로 결합하고, 다수의 발광소자(7)가 설치되고 중앙에 수광홀(4)이 형성된 피씨비(8)를 접속단자(14)로 연결한 후, 접속단자(14)를 모듈바디(1)의 양측에 형성된 요홈부(13)(13')에 삽입하여 피씨비(8)를 모듈바디(1)의 선단부에 설치하고, 캡조립용 나사부(2)와 케이스 조립용 나사부(3)에 각각 캡(5)과 케이스를 결합하는 것이다.When assembling the lens module of the present invention, the module body, which is separated after mounting the lens 9, the circular stopper double filter 11 and the photo sensor unit 6 inside the module body 1, which is separated up and down, is separated. (1) are connected to each other, a plurality of light emitting elements (7) are installed, the connection of the PC (8) having a light receiving hole (4) in the center with the connection terminal 14, and then the connection terminal 14 to the module body Inserted into recesses (13) and (13 ') formed on both sides of (1), the PC (8) is attached to the tip of the module body (1), the cap assembly screw (2) and the case assembly screw (3). To combine the cap 5 and the case, respectively.

도 3 은 본 발명에 의한 광선의 주사 및 집광설명도이다.3 is an explanatory view of scanning and condensing light rays according to the present invention.

사용자가 바코드를 스캔하기 위하여 스캐너 케이스를 손으로 파지하고 그 선단부의 캡(5)을 바코드와 초점심도 만큼 근접시키고 피씨비(8)의 표면에 다수 설치된 발광소자(7)에 의해 광선을 주사시키면 그 광선이 바코드에 의해 반사되면서 그 반사광이 피씨비(8)와 모듈바디(1)의 선단부에 형성된 수광홀(4)을 통해 후측에 설치된 렌즈(9)를 통과하면서 굴절되어 후측의 원형 스토퍼 2중필터(11)의 수광홀(10)(10')을 순차적으로 통과하여 포토센서부(6)에 형성된 미세공(12)을 통과하는 것이다.When the user grips the scanner case by hand to scan the barcode, the cap 5 of the tip thereof is brought close to the barcode by the depth of focus, and the light beam is scanned by the light emitting elements 7 installed on the surface of the PC 8 with the light. As the light is reflected by the barcode, the reflected light is refracted while passing through the lens 9 installed at the rear side through the light receiving hole 4 formed at the front end of the PC 8 and the module body 1, and the rear circular stopper double filter The light receiving holes 10 and 10 ′ of (11) are sequentially passed through the fine holes 12 formed in the photosensor unit 6.

그러므로 검은색 바와 밝은색의 스페이스로 구분된 바코드마다 반사량이 다르게 되어 그 미세공을 통과한 광선은 전기한 바코드에 의해 그 반사량의 차이에 따라 포토센서부(6)에 의해 강약으로 구분 인식되어 그 검출되는 광에 따른 신호가 증폭기 및 아날로그/디지털 변환부를 통해 디지털화 된 스캐너 신호가 디코더로 출력된다.Therefore, the amount of reflection is different for each bar code divided into a black bar and a light space, and light rays passing through the micropores are recognized as strong and weak by the photo sensor unit 6 according to the difference in the amount of reflection by the bar code. The signal according to the detected light is digitized through the amplifier and the analog / digital converter, the scanner signal is output to the decoder.

상기와 같이 본 발명은 모듈바디(1)를 분할형성하고, 집광판과 결합링의 설치가 필요없어 구성이 단순화 되고 조립이 용이하여 작업성과 생산성을 극대화 할 수 있는 것이다.As described above, the present invention divides the module body 1 and does not require installation of the light collecting plate and the coupling ring, thereby simplifying the configuration and maximizing the workability and productivity.

또한, 본 발명은 종래와 같이 하나의 발광다이오드에 의한 발광이 아니라 다수의 발광소자에 의한 발광으로 빛의 밝기를 증대하고, 원형 스토퍼 2중필터(11)에 의해 렌즈(9)를 통해 산란 및 굴절되는 빛을 필터링 하여 보다 양질의 빛을 포토센서부(6)에 전달 시키므로서, 에러의 발생률을 최소화 할 수 있어 고 정밀도의 바코드는 물론, 1차원 바코드 전체를 에러 없이 처리할 수 있는 것이다.In addition, the present invention increases the brightness of the light by the light emitted by the plurality of light emitting elements, rather than the light emitted by a single light emitting diode as in the prior art, and scattered through the lens 9 by the circular stopper double filter 11 and By filtering the refracted light to transmit a higher quality light to the photo sensor unit 6, the incidence of errors can be minimized, so that not only a high-precision barcode but also an entire one-dimensional barcode can be processed without errors.

상기와 같이 본 발명은 모듈바디를 분할 형성하고, 다수의 발광소자를 설치하며, 원형 스토퍼 2중 필터를 설치하여 그 구조를 단순화하므로서, 작업성과 생산을 극대화 하고, 정밀도를 향상시켜 에러의 발생률을 최소화 할 수 있는 것이다.As described above, the present invention divides the module body, installs a plurality of light emitting elements, and installs a circular stopper double filter to simplify the structure, thereby maximizing workability and production, and improving accuracy to reduce the incidence of errors. It can be minimized.

Claims (1)

외주면에 캡조립용 나사부(2)와 케이스 조립용 나사부(3)가 형성된 관체상의 바코드 펜 스케너의 렌즈모듈에 있어서,In the lens module of the tubular barcode pen scanner with a cap assembly screw portion 2 and a case assembly screw portion 3 formed on an outer circumferential surface thereof, 모듈바디(1)를 상하로 분리형성하고, 각각의 나사부(2)(3)상에 요홈부(13)(13')를 형성하며, 선단부에는 수광홀(4)을 형성하고, 그 전면에 다수의 발광소자(7)가 설치되고 중앙에 수광홀(4)이 형성된 피씨비(PCB)(8)를 요홈부(13)(13')에 접속단자(14)를 삽입하여 결합하고, 수광홀(4)의 후측에 렌즈(9)를 설치하며, 렌즈(9)의 후측에는 2개의 원판이 나란히 설치되어 중앙에 서로 다른 크기의 수광홀(10)(10')이 형성된 원형 스토퍼 2중필터(11)를 설치하고, 그 후측에는 중앙에 미세공(12)이 형성된 포토센서부(6)를 장착하여 구성함을 특징으로 하는 바코드 펜 스케너의 렌즈모듈.The module body 1 is separated and formed up and down, and grooves 13 and 13 'are formed on each screw portion 2 and 3, and a light receiving hole 4 is formed at the front end thereof, PCB (8) having a plurality of light emitting elements (7) installed and a light receiving hole (4) formed in the center thereof is connected to the recess (13) and 13 'by inserting the connection terminal (14), and the light receiving hole. A circular stopper double filter in which a lens 9 is provided at the rear side of (4), and two discs are arranged side by side at the rear side of the lens 9, and light receiving holes 10 and 10 'of different sizes are formed in the center. (11) is installed, the rear side of the lens module of the bar code pen scanner, characterized in that by mounting the photosensor unit 6 formed with a fine hole 12 in the center.
KR1020010072952A 2001-11-22 2001-11-22 Lens module of bar code pen scanner KR20030042256A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417177A (en) * 1987-07-10 1989-01-20 Matsushita Electric Ind Co Ltd Optical pattern detector
JPH01147683A (en) * 1987-12-04 1989-06-09 Tohoku Ricoh Co Ltd Resolution adjusting method for bar code reader
JPH0253191A (en) * 1988-08-16 1990-02-22 Nec Corp Bar code reader
JPH1063766A (en) * 1996-08-27 1998-03-06 Olympus Optical Co Ltd Code reader

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417177A (en) * 1987-07-10 1989-01-20 Matsushita Electric Ind Co Ltd Optical pattern detector
JPH01147683A (en) * 1987-12-04 1989-06-09 Tohoku Ricoh Co Ltd Resolution adjusting method for bar code reader
JPH0253191A (en) * 1988-08-16 1990-02-22 Nec Corp Bar code reader
JPH1063766A (en) * 1996-08-27 1998-03-06 Olympus Optical Co Ltd Code reader

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