KR100995292B1 - Lenz flare test system - Google Patents

Lenz flare test system Download PDF

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Publication number
KR100995292B1
KR100995292B1 KR1020100055922A KR20100055922A KR100995292B1 KR 100995292 B1 KR100995292 B1 KR 100995292B1 KR 1020100055922 A KR1020100055922 A KR 1020100055922A KR 20100055922 A KR20100055922 A KR 20100055922A KR 100995292 B1 KR100995292 B1 KR 100995292B1
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KR
South Korea
Prior art keywords
light source
lens
light
stage
integrated booth
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KR1020100055922A
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Korean (ko)
Inventor
강성관
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(주)아이솔루션
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Priority to KR1020100055922A priority Critical patent/KR100995292B1/en
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Publication of KR100995292B1 publication Critical patent/KR100995292B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0207—Details of measuring devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0228—Testing optical properties by measuring refractive power
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/04—Optical benches therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
    • G01N2021/9583—Lenses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

A lens flare test system is disclosed. The lens flare test system of the present invention is an integrated booth including a bottom, wherein a portion of the bottom includes an inner bottom and an outer bottom positioned below the inner bottom, and an expansion space between the inner bottom and the outer bottom. The integrated booth is secured; A lens setting stage installed on the inner bottom surface of the integrated booth and set with an imaging device including an optical lens to be tested, the lens setting stage having at least one or more left and right rotational degrees of freedom; A light source stage including a light source for irradiating test light with the optical lens; And a rotation bar extending from the inside of the integrated booth to the outside through the expansion space and connected to the light source stage inside the integrated booth. Wherein the rotary bar extends from the interior of the integrated booth through the expansion space to the exterior; And a vertical part connected to the horizontal part in the integrated booth, wherein the vertical part is connected to the light source stage. According to the lens flare test system of the present invention, light can be easily scanned at various angles with respect to the lens in the dark room, so that the flare occurrence and the degree of occurrence of the flare of the optical lens can be easily tested.

Description

Lens flare test system < RTI ID = 0.0 >

The present invention relates to a lens test system, and more particularly to a lens flare test system for testing the flare phenomenon of the lens.

In recent years, technology related to electronic devices has been rapidly developed along with the imaging device. The development of such electronic technologies has resulted in a wide variety of imaging devices. In addition to ordinary digital cameras, imaging devices such as CCD image sensors and CMOS image sensors have been mounted and spread in electronic devices such as mobile phones and laptops. These electronic devices can transmit image data captured by the image module in addition to the text data in real time processing.

In addition, electronic devices using imaging devices are becoming smaller and smaller. As a result, the units, parts, and the like constituting the image capturing apparatus are also miniaturized, and in particular, optical lenses through which light is transmitted are also miniaturized in order to capture an object.

In such a miniaturized lens, the diffraction and scattering of light are greatly increased at the time of imaging the subject. In this case, the possibility of occurrence of a flare phenomenon that causes the screen to become whitish becomes very large. This flare phenomenon acts as a factor that degrades the performance of the imaging device.

Therefore, in the imaging device including the lens, it is essential to test whether or not flare occurs. In order to effectively test the flare phenomenon, it is required to easily perform scanning of light of various angles with respect to the lens in the dark room.

It is an object of the present invention to provide a lens flare test system that can easily perform the scanning of light of various angles to the lens in the dark room.

One aspect of the present invention for achieving the above technical problem relates to a lens flare test system. The lens flare test system of the present invention is an integrated booth including a bottom, wherein a portion of the bottom includes an inner bottom and an outer bottom positioned below the inner bottom, and an expansion space between the inner bottom and the outer bottom. The integrated booth is secured; A lens setting stage installed on the inner bottom surface of the integrated booth and set with an imaging device including an optical lens to be tested, the lens setting stage having at least one or more left and right rotational degrees of freedom; A light source stage including a light source source for irradiating test light to the optical lens; And a rotation bar extending from the inside of the integrated booth to the outside through the expansion space and connected to the light source stage inside the integrated booth. The rotating bar has a horizontal portion extending from the inside of the integrated booth to the outside through the expansion space; And a vertical part connected to the horizontal part in the integrated booth, wherein the vertical part is connected to the light source stage.

According to the lens flare test system of the present invention, the scanning angle of the test light scanned by the optical lens tested in the dark room can be easily changed. That is, scanning of light of various angles to the lens in the dark room can be easily performed. As a result, according to the lens flare test system of the present invention, it is possible to easily test whether or not the flare of the optical lens is generated.

A brief description of each drawing used in the present invention is provided.
1 is a view showing the appearance of a lens flare test system according to an embodiment of the present invention.
FIG. 2 is a diagram for describing an arrangement of components in the integrated booth of FIG. 1.
3 is a view for explaining the position of the confirmation beam irradiator when the confirmation beam irradiation.
4 is a flowchart illustrating a method of testing a lens flare phenomenon using the lens flare test system of FIG. 1.

For a better understanding of the present invention and its operational advantages, and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings, which illustrate preferred embodiments of the invention, and the accompanying drawings. In understanding each of the figures, it should be noted that like parts are denoted by the same reference numerals whenever possible. Incidentally, detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention are omitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the appearance of a lens flare test system according to an embodiment of the present invention, Figure 2 is a view for explaining the arrangement of each component in the integrated booth of FIG.

Referring to FIGS. 1 and 2, the lens flare test system of the present invention includes an integrated booth 10, a lens setting stage 20, a light source stage 30, and a rotation bar 40. The integrated booth 10 forms a dark chamber. A portion 11a of the bottom 11 of the integrated booth 10 includes an inner bottom surface INB and an outer bottom surface EXB.

In this case, the outer bottom surface EXB is positioned below the inner bottom surface INB, and a pedestal SBA is installed between the inner bottom surface INB and the outer bottom surface EXB. Accordingly, an expansion space ETS is secured between the inner bottom surface INB and the outer bottom surface EXB. In addition, the remaining portion 11b of the bottom 11 of the integrated booth 10 includes an inner bottom surface INB and is configured as an outer bottom surface EXB.

The lens setting stage 20 is set on the inner bottom surface INB of the accumulation booth 10 and an imaging device CA including the optical lens PLZ to be tested is set. In this case, the lens setting stage 20 has at least one direction of left and right rotational degrees of freedom.

The lens setting stage 20 specifically includes a rotating plate 21 and a lens mount 23. The rotating plate 21 is formed on the inner bottom surface INB of the integrated booth 10 and is rotatable. The image pickup device (CA) can be mounted on the lens mount (23). In addition, the lens holder 23 is installed on the rotating plate 21, and rotates according to the left and right rotation of the rotating plate 21.

The light source stage 30 includes a light source source SC for radiating test light TL to the optical lens PLZ. Preferably, the test light TL is a fiber light having a high concentration of light. Further, preferably, the light source stage 30 has at least a left-right rotational degree of freedom in at least one direction. In the present embodiment, the light source stage 30 may be adjusted in the vertical direction as well as the left and right rotation.

The light source stage 30 includes a vertical moving part 31 and a light source installing part 33. The vertical movement part 31 is fastened to the vertical part 43 of the rotation bar 40 in the integrated booth 10. In addition, the vertical movement part 31 is capable of vertical movement along the vertical part 43 of the rotation bar 40. The light source installation part (33) is provided with the light source (SC). In addition, the light source mounting part 33 is horizontally fastened to the vertical movement part 31. Therefore, as the vertical movement of the vertical movement part 31 moves, the light source installation part 33 is moved up and down.

The light source SC installed in the light source mounting portion 33 can be adjusted to be horizontal or in the same height as the optical lens PLZ by the vertical movement of the light source installing portion 33 .

Preferably, the light source stage 30 further includes a color temperature filter installation unit 35. The color temperature filter installation unit 35 may be fastened to the light source installation unit 33, and a color temperature filter FT may be installed. In this case, the color temperature filter FT is positioned on the path of the test light TL scanned from the light source source SC to the light source lens PLZ.

By the color temperature filter FT, the test light TL scanned by the light source source SC may be converted to a color temperature close to natural sunlight.

Also, preferably, the light source stage 30 further comprises a confirmation beam irradiator (CFS). The confirmation beam irradiator CFS is coupled to the light source mounting part 31. In the present embodiment, the confirmation beam irradiator CFS is positioned to move in front of the light source source SC when irradiating the confirmation beam, as shown in FIG. 3. The apparatus for moving the confirmation beam irradiator (CFS) may be implemented in various ways, which will be apparent to those skilled in the art, and thus detailed illustration and description thereof will be omitted.

 The confirmation beam irradiator CFS irradiates the confirmation beam and detects the confirmation beam reflected by the optical lens OPZ. By the confirmation beam irradiator CFS, the horizontality between the light source source SC and the optical lens PLZ may be confirmed.

In addition, preferably, the light source stage 30 further includes a laser range finder LDS coupled to the light source installation unit 33. The laser range finder LDS is coupled to the light source installation unit 31. The laser distance measuring device LDS irradiates the distance measuring beam to the lens setting stage 20 and detects the distance measuring beam reflected by the lens setting stage 20.

The laser range finder LDS may determine whether the distance between the light source stage 30 and the lens setting stage 20 is kept constant while the light source stage 30 rotates left and right.

The rotation bar 40 extends from the inside of the integrated booth 10 to the outside through the expansion space ETS. The rotation bar 40 includes a handle HD formed on the outside of the integrated booth 10. In the region where the inner bottom surface INB of the integrated booth 10 is excluded, the light source stage 30 is mechanically connected. At this time, the left-right rotation of the light source stage 30 is controlled by the movement of the handle (HD).

The rotary bar 40 includes a horizontal portion 41 and a vertical portion 43. The horizontal part 41 extends horizontally from the inside of the integrated booth 10 to the outside through the expansion space ETS. At this time, it is preferable that the handle (HD) is formed at the end of the horizontal portion (41). The vertical part 43 is vertically connected to the horizontal part 41 in an area in which the inner bottom surface INB of the integrated booth 10 is excluded. The light source stage 30 is connected to the vertical portion 43.

On the other hand, the horizontal portion 41 has a fixed shaft 45 fixed to the floor from the outside of the integrated booth (10). Therefore, when the horizontal portion 41 is rotated left and right about the fixed shaft 45, the light source stage 30 is rotated to the left and right.

According to a preferred embodiment, the integrated booth 10 further includes an opening and closing door 17. The door 17 is installed on the opposite side of the lens stage 20 with respect to the light source stays (30).

Further, the lens flare test system of the present invention further includes a spare light box 70. [ The preliminary light box 70 scans the preliminary light through the open / close door 17 to the optical lens PLZ. Preferably, the preliminary light is an LED light which is irradiated over a wider range than the test light. Through the preliminary light, it is possible to tune to the luminance of the imaging device including the optical lens PLZ.

Referring again to FIG. 1, the lens flare test system of the present invention further includes an angle measuring system 60.

The angle measuring system 60 has a reference point located on the fixed shaft 45 of the rotation bar 40 and is formed outside the integrated booth 10. In addition, the angle measuring system 60 displays an angle around the reference point. Through the angle measuring system 60, the left and right rotation angles of the rotation bar 40 may be grasped, and ultimately, the left and right rotation angles of the light source stage 30 may be grasped.

4 is a flow chart illustrating a method for testing a lens flare phenomenon using the lens flare test system of FIG.

First, an imaging device including an optical lens OPZ is set on the lens holder 23 of the lens setting stage 20 (step S10). At this time, the optical lens OPZ of the imaging device faces the opening / closing door 17.

Then, the power supply of the preliminary light box 70 is turned on in the state where the opening / closing door 17 is opened to scan the preliminary light, preferably LED light, and includes the optical lens OPZ. (Step S20).

Then, the opening and closing door 17 is closed, and the light source stage 30 is moved to adjust the horizontal and the distance between the optical lens OPZ and the light source S (step S30).

When the adjusted horizontal and distance are kept constant, the flare phenomenon of the optical lens OPZ is tested by rotating the light source stage 30 by 1 degree in left and right directions (step S40). In step S40, the rotation of the light source stage 30 is performed by the rotation bar 40. In addition, the intensity of the test light irradiated from the light source source SC may be electrically connected to the light source source SC and may be performed through a control box (not shown) positioned outside the integrated booth 10. .

Through the lens flare test system of the present invention as described above, it is possible to easily change the angle of the test light scanned to the optical lens (OPZ) to be tested. Therefore, according to the lens flare test system of the present invention, it is possible to easily test whether or not the flare of the optical lens occurs.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (11)

In a lens flare test system,
An integrated booth including a bottom surface, wherein a part of the bottom surface comprises an inner bottom and an outer bottom positioned below the inner bottom, wherein the integrated booth secures an expansion space between the inner bottom and the outer bottom;
A lens setting stage installed on the inner bottom surface of the integrated booth and set with an imaging device including an optical lens to be tested, the lens setting stage having at least one or more left and right rotational degrees of freedom;
A light source stage including a light source source for irradiating test light to the optical lens; And
A rotation bar extending from the interior of the integrated booth to the outside through the expansion space and connected to the light source stage in the interior of the integrated booth;
The rotating bar is
A horizontal part extending from the inside of the integrated booth to the outside through the expansion space; And
And a vertical part connected to the horizontal part in the integrated booth, wherein the vertical part is connected to the light source stage.
The method of claim 1, wherein the test light is
Lens flare test system, characterized in that the fiber light (fiber light).
The method of claim 1, wherein the lens setting stage is
A rotating plate installed on the inner bottom surface of the integrated booth; And
And a lens holder which is rotatable in accordance with rotation of the rotary plate, the lens holder being capable of holding the imaging device.
The method of claim 1, wherein the light source stage
An up and down moving part fastened to a vertical part of the rotating bar in the integrated booth, the vertical moving part capable of moving up and down along the vertical part of the rotating bar; And
A lens flare test system, wherein the light source installation unit is provided with the light source, the light source installation unit is fastened to the vertical movement unit.
The method of claim 4, wherein the light source stage
A color temperature filter mounting unit which is fastened to the light source mounting unit and in which a color temperature filter can be installed, wherein the color temperature filter further includes the color temperature exchange filter mounting unit positioned on the path of the test light. system.
The method of claim 4, wherein the light source stage
And a confirmation beam irradiator coupled to the light source installation unit, the confirmation beam irradiator irradiating the confirmation beam and sensing the confirmation beam reflected.
The method of claim 4, wherein the light source stage
And a laser distance measuring unit coupled to the light source mounting unit, the laser distance measuring unit irradiating a distance measuring beam and sensing the distance measuring beam reflected.
The system of claim 1, wherein the lens flare test system is
An angle measuring instrument having a reference point located on a fixed axis of the rotary bar, the angle measuring system being installed outside the integrated booth.
The method of claim 1, wherein the integrated booth
And an opening / closing door installed at an opposite side of the lens setting stage based on the light source stays.
The system of claim 9, wherein the lens flare test system is
And a preliminary light box which scans the preliminary light into the optical lens through the opening and closing door.
The method of claim 10, wherein the reserve light
Lens flare test system, characterized in that the LED light.
KR1020100055922A 2010-06-14 2010-06-14 Lenz flare test system KR100995292B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200470308Y1 (en) * 2010-09-30 2013-12-11 장승권 Apparatus for Providing Camera Module Measurement Light Source
CN108760248A (en) * 2018-05-29 2018-11-06 Oppo广东移动通信有限公司 Camera module glare testing device
KR101979805B1 (en) * 2018-05-28 2019-05-17 주식회사 세코닉스 Lens Inspection Device
CN109788278A (en) * 2019-01-16 2019-05-21 深圳市壹欣科技有限公司 Camera glare test method and its glare acquisition device
KR20190122016A (en) 2018-04-19 2019-10-29 (주)포산인더스트리 Flare test system of camera module
US20210389211A1 (en) * 2020-06-10 2021-12-16 Triple Win Technology(Shenzhen) Co.Ltd. Test device for lens module

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100532268B1 (en) 2001-08-22 2005-11-29 세이코 엡슨 가부시키가이샤 Lens test device and test sheet
KR100808019B1 (en) 2006-10-20 2008-02-28 삼성전기주식회사 Test device and controlling method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100532268B1 (en) 2001-08-22 2005-11-29 세이코 엡슨 가부시키가이샤 Lens test device and test sheet
KR100808019B1 (en) 2006-10-20 2008-02-28 삼성전기주식회사 Test device and controlling method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200470308Y1 (en) * 2010-09-30 2013-12-11 장승권 Apparatus for Providing Camera Module Measurement Light Source
KR20190122016A (en) 2018-04-19 2019-10-29 (주)포산인더스트리 Flare test system of camera module
KR101979805B1 (en) * 2018-05-28 2019-05-17 주식회사 세코닉스 Lens Inspection Device
CN108760248A (en) * 2018-05-29 2018-11-06 Oppo广东移动通信有限公司 Camera module glare testing device
CN109788278A (en) * 2019-01-16 2019-05-21 深圳市壹欣科技有限公司 Camera glare test method and its glare acquisition device
CN109788278B (en) * 2019-01-16 2020-12-01 深圳市壹欣科技有限公司 Camera glare testing method and glare collecting device thereof
US20210389211A1 (en) * 2020-06-10 2021-12-16 Triple Win Technology(Shenzhen) Co.Ltd. Test device for lens module

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