KR950029986A - Uneven surface image pickup device - Google Patents

Uneven surface image pickup device Download PDF

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Publication number
KR950029986A
KR950029986A KR1019940006981A KR19940006981A KR950029986A KR 950029986 A KR950029986 A KR 950029986A KR 1019940006981 A KR1019940006981 A KR 1019940006981A KR 19940006981 A KR19940006981 A KR 19940006981A KR 950029986 A KR950029986 A KR 950029986A
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KR
South Korea
Prior art keywords
lens
prism
focal length
distance
size
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KR1019940006981A
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Korean (ko)
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KR960013821B1 (en
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박규태
최동혁
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박규태
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Priority to KR1019940006981A priority Critical patent/KR960013821B1/en
Publication of KR950029986A publication Critical patent/KR950029986A/en
Application granted granted Critical
Publication of KR960013821B1 publication Critical patent/KR960013821B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

본 발명은 요철표면 영상픽업장치에 관한 것으로서, 요철표면이 경사면에 접촉되는 프리즘; 상기 프리짐의 제1평탄면에 대향해서 설치된 광원; 상기 프리즘의 경사면이 제1촛점거리내에 위치하도록 상기 프리즘의 제2평탄면에 근접하여 설치된 크기보정용 제1렌즈수단; 상기 제1렌즈수단으로부터 상기 프리즘의 반대편에 제2촛점거리 이상으로 떨어져 설치된 제2렌즈수단; 및 상기 제2렌즈수단의 촛점거리 밖에 설치되고 소정 기울기로 수광면이 기울어진 2차원 광전변환수단을 구비한다.The present invention relates to an uneven surface image pickup device, comprising: a prism having an uneven surface in contact with an inclined surface; A light source provided to face the first flat surface of the freeze; First lens means for correcting size installed in proximity to the second flat surface of the prism such that the inclined surface of the prism is located within the first focal length; Second lens means installed away from the first lens means by a distance greater than or equal to a second focal length from the prism; And two-dimensional photoelectric conversion means installed outside the focal length of the second lens means and having a light receiving surface inclined at a predetermined inclination.

그러므로, 본 발명은 프리즘의 경사면상에 접촉되는 요철표면의 영상을 촛점이 맞게 정확하게 픽업할 수 있다.Therefore, the present invention can accurately pick up the image of the uneven surface in contact with the inclined surface of the prism in focus.

Description

요철표면 영상픽업장치Uneven surface image pickup device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 요철표면 영상픽업장치를 설명하기 위한 도면, 제2도는 본 발명에 의한 요철표면 영상픽업장치를 설명하기 위한 도면.1 is a view for explaining a conventional uneven surface image pickup device, Figure 2 is a view for explaining an uneven surface image pickup apparatus according to the present invention.

Claims (3)

요철표면이 경사면에 접촉되는 프리즘; 상기 프리즘의 제1평탄면에 대향해서 설치된 광원; 상기 프리즘의 경사면이 제1촛점거리내에 위치하도록 상기 프리즘의 제2평탄면에 근접하여 설치된 크기보정용 제1렌즈수단; 상기 제1렌즈수단으로부터 상기 프리즘의 반대편에 제2촛점거리 이상으로 떨어져 설치된 제2렌즈수단; 및 상기 제2렌즈수단의 촛점거리 밖에 설치되고 소정 기울기로 수광면이 기울어진 2차원 광전변환수단을 구비한 것을 특징으로 하는 요철표면 영상픽업장치.A prism whose uneven surface is in contact with an inclined surface; A light source provided to face the first flat surface of the prism; First lens means for correcting size installed in proximity to the second flat surface of the prism such that the inclined surface of the prism is located within the first focal length; Second lens means installed away from the first lens means by a distance greater than or equal to a second focal length from the prism; And two-dimensional photoelectric conversion means installed outside the focal length of the second lens means and having an inclined light receiving surface at a predetermined inclination. 제1항에 있어서, 상기 제1및 제2렌즈는 볼록렌즈인 것을 특징으로 하는 요철표면 영상픽업장치.The uneven surface image pickup apparatus of claim 1, wherein the first and second lenses are convex lenses. 제1항에 있어서, 상기 2차원 광전변환수단의 기울기는(여기서, XP0는 제1렌즈의 중심에서부터 P0까지의 거리, XP1은 제1렌즈의 중심에서 P0의 허상 P1까지의 거리 fa는 제1렌즈의 초점거리이다.)The method of claim 1, wherein the slope of the two-dimensional photoelectric conversion means (Where XP0 is the distance from the center of the first lens to P0, XP1 is the distance from the center of the first lens to the virtual image P1 of P0 fa is the focal length of the first lens.) (여기서, d는 프리즘의 경사면상의 P0와 QO간의 광축상의 간격, XQ1은 제1렌즈의 중심에서 Q0의 허상 Q1까지의 거리이다.) (Where d is the distance on the optical axis between P0 and QO on the inclined plane of the prism, and XQ1 is the distance from the center of the first lens to the virtual image Q1 of Q0). (여기서, MPO은 P0의 크기, MP1는 P1의 크기, MA0는 Q의 크기, MQ1는 Q1의 크기이다.)(Where MPO is the size of P0, MP1 is the size of P1, MA0 is the size of Q, and MQ1 is the size of Q1.) (여기서 XP2는 제2렌즈의 중심에서 P2까지의 거리, XQ2는 제2렌즈의 중심에서 Q2까지의 거리, fb는 제2렌즈의 초점거리, X는 제1렌즈와 제2렌즈의 중심들 사이의 거리이다.)Where XP2 is the distance from the center of the second lens to P2, XQ2 is the distance from the center of the second lens to Q2, fb is the focal length of the second lens, and X is between the centers of the first and second lenses. Is the distance.) (여기서, MP2는 P2의 크기, MQ2는 Q2의 크기이다.)의 식들에 의해 mp2=mq2인 조건을 만족하는 제1초점거리를 결정한 후에에 의해 구하는 것을 특징으로 하는 요철표면 영상입력장치.(Where MP2 is the size of P2, MQ2 is the size of Q2), after determining the first focal length that satisfies the condition mp 2 = mq 2 Uneven surface image input device characterized in that obtained by. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940006981A 1994-04-02 1994-04-02 Image pick-up apparatus KR960013821B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940006981A KR960013821B1 (en) 1994-04-02 1994-04-02 Image pick-up apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940006981A KR960013821B1 (en) 1994-04-02 1994-04-02 Image pick-up apparatus

Publications (2)

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KR950029986A true KR950029986A (en) 1995-11-24
KR960013821B1 KR960013821B1 (en) 1996-10-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020047403A (en) * 2000-12-13 2002-06-22 류정열 fingerprints pattern sensing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020047403A (en) * 2000-12-13 2002-06-22 류정열 fingerprints pattern sensing method

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KR960013821B1 (en) 1996-10-10

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