CN101520548B - Homogeneous light generating system used for testing image sensing device and use method thereof - Google Patents
Homogeneous light generating system used for testing image sensing device and use method thereof Download PDFInfo
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- CN101520548B CN101520548B CN2008100063791A CN200810006379A CN101520548B CN 101520548 B CN101520548 B CN 101520548B CN 2008100063791 A CN2008100063791 A CN 2008100063791A CN 200810006379 A CN200810006379 A CN 200810006379A CN 101520548 B CN101520548 B CN 101520548B
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
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- 238000009792 diffusion process Methods 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000004020 luminiscence type Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001915 proofreading effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The invention discloses a homogeneous light generating system used for testing an image sensing device and a use method thereof. The homogeneous light generating system comprises: a light generating unit, a light transmission unit, a light diffusion unit and a lens unit, wherein the light generating unit is provided with a substrate and a plurality of light-emitting components electrically arranged on the substrate. One end of the light transmission unit is communicated to the light generating unit to receive and homogenize a beam projected from the light-emitting components. One end of the light diffusion unit is arranged at another opposite end of the light transmission unit to receive and diffuse the beam passing through the light transmission unit. The lens unit is arranged at another opposite end of the light diffusion unit to transmit the beam diffused through the light diffusion unit to the image sensing device.
Description
Technical field
The present invention relates to a kind of homogeneous light generating system and using method thereof, relate in particular to a kind of homogeneous light generating system and using method thereof that is used for testing image sensing device.
Background technology
Integrating sphere is the ball chamber of a hollow, can offer input hole and the delivery outlet that quantity does not wait on demand on the ball chamber, and operated by rotary motion has a reflecting plate and to coat the coating with reflectivity properties on the wall of chamber in the ball chamber.
When integrating sphere during in practical application, tested light beam can be injected from this input hole, and through after the reflection of this reflecting plate and chamber wall complexity and the refraction, to produce uniform light, this uniform light penetrates for measurement from this delivery outlet more at last.Hence one can see that, and the effect of integrating sphere is exactly the light beam that is used for being received, and produces even light by the reflection of inner (reflecting plate and chamber wall) with refraction, and then by this uniform light of delivery outlet ejaculation of this integrating sphere.Therefore, luminous power, waveform and energy by this outlet aperture of sampling (for example: relevant parameter light emitting diode (LED)) can obtain former incident beam after the conversion.
Summary of the invention
The object of the present invention is to provide a kind of homogeneous light generating system and using method thereof that is used for testing image sensing device, solve the problem that exists in the above-mentioned known technology.
To achieve these goals, the invention provides a kind of homogeneous light generating system that is used for testing image sensing device, it comprises: a smooth generation unit, a light conduction cell, a smooth diffusion unit and a lens unit.Wherein, this light generation unit has a substrate and several and is arranged at luminescence component on this substrate electrically.One end of this light conduction cell is communicated in this light generation unit, with receive and homogenising from light beam that this luminescence component was projected.One end of this light diffusion unit is arranged at another end opposite of this light conduction cell, to receive and to spread the light beam of this light conduction cell of process.This lens unit is arranged at another end opposite of this light diffusion unit, passes through the light beam of this light diffusion unit diffusion to this image sensering device with transmission.
To achieve these goals, the present invention also provides a kind of using method that is used for the homogeneous light generating system of testing image sensing device, it comprises the following steps: at first, by a smooth generation unit, to produce a light beam, wherein this light generation unit has a substrate and several and is arranged at luminescence component on this substrate electrically; Then, be communicated in a light conduction cell of this light generation unit by an end, with receive and homogenising from light beam that this luminescence component was projected; Then, be arranged at a smooth diffusion unit of another end opposite of this light conduction cell by an end, to receive and to spread the light beam of this light conduction cell of process; Next, by a lens unit that is arranged at another end opposite of this light diffusion unit, to transmit light beam through this light diffusion unit diffusion to this image sensering device; At last, measure the above-mentioned comparison of passing through the raw information (original information) of the resulting metrical information of light beam (measurement information) of this light conduction cell, this light diffusion unit and this lens unit and the light beam that this light generation unit is produced in regular turn by this image sensering device, to judge the image sensing quality of this image sensering device.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is used for the schematic perspective view of the homogeneous light generating system of testing image sensing device for the present invention;
Fig. 2 is used for the schematic side view of the homogeneous light generating system of testing image sensing device for the present invention;
Fig. 3 is used for the process flow diagram of using method of the homogeneous light generating system of testing image sensing device for the present invention;
Fig. 4 is used for the user mode synoptic diagram of using method of the homogeneous light generating system of testing image sensing device for the present invention; And
Fig. 5 is used for proofreading and correct the user mode synoptic diagram of homogeneous light generating system for the present invention.
Wherein, Reference numeral:
Red light emitting diodes 110R
Focal length is adjusted assembly 41
The depth of field is adjusted assembly 42
Image sensering device S
Light beam L
Computer installation C
Embodiment
Please refer to Figure 1 and Figure 2, it is respectively schematic perspective view and schematic side view that the present invention is used for the homogeneous light generating system of testing image sensing device.By among this figure as can be known, the invention provides a kind of homogeneous light generating system that is used for testing image sensing device S, it comprises: a smooth generation unit 1, a light conduction cell 2, one smooth diffusion unit 3 and a lens unit 4.
Wherein, this light generation unit 1 has a substrate 10 and several and is arranged at luminescence component 11 on this substrate 10, and this luminescence component 11 can be made up of 110 of several light emitting diodes (LED).With the present invention for embodiment be example, this light emitting diode 110 can by several red light emitting diodes (red LED) 110R, several green LEDs (green LED) 110G, and several blue LEDs (blue LED) 110B formed.
Have, this light conduction cell 2 has passage (channel) 21, and the reflectance coating (reflectivecoating layer) 22 of coating these passage 21 surfaces that a body (main body) 20, runs through this body 20 again.One end of this light conduction cell 2 is communicated in this light generation unit 1, with the light beam L that receives and homogenising is projected from this luminescence component 11.In other words, this red light emitting diodes (red LED) 110R, this green LED (green LED) 110G and this blue LED (blue LED) light source (R, G, B) that 110B projected carry out mixed light in this light conduction cell 2.
In addition, an end of this light diffusion unit 3 is arranged at another end opposite of this light conduction cell 2, to receive and to spread the light beam of this light conduction cell 2 of process.Therefore, this light generation unit 1 and this light diffusion unit 3 are arranged at two opposition side ends of the body 20 of this light conduction cell 2 respectively, to seal two opposition side ends of this passage 21.
In addition, this lens unit 4 comprises: the focal length that a lens group (lens set) 40, is used to adjust the focal length of this lens group 40 adjust assembly (focal length adjusting element) 41, and a depth of field that is used to adjust the depth of field of this lens group 40 adjust assembly (depth-of-fieldadjusting element) 42.In addition, demand during according to test, the present invention adjusts the cooperation that assembly 41 and this depth of field are adjusted assembly 42 by this focal length, so that this light beam L during through this lens group 40, selectively produces a scattered light (scattered light) or directional light (parallel light).Therefore, this lens unit 4 is arranged at another end opposite of this light diffusion unit 3, passes through the light beam L of these light diffusion unit 3 diffusions to this image sensering device S with transmission.
Please refer to Fig. 3 to shown in Figure 4, it is respectively the process flow diagram and the user mode synoptic diagram of using method that the present invention is used for the homogeneous light generating system of testing image sensing device.By among this figure as can be known, the invention provides a kind of using method that is used for the homogeneous light generating system of testing image sensing device, it comprises the following steps:
Step S100: by computer installation (computer device) C who is electrically connected between a control module 5 and this image sensering device S, to control this control module 5.
Step S102: by the above-mentioned control module 5 that is electrically connected at this light generation unit 1, to control the light beam L of these light generation unit 1 output different brightness (brightness) and colour temperature (color temperature).Wherein, this light generation unit 1 has a substrate 10 and several and is arranged at luminescence component 11 on this substrate 10.
Step S104: be communicated in the light conduction cell 2 of this light generation unit 1 by an end, with the light beam L that receives and homogenising is projected from this luminescence component 11.
Step S106: be arranged at the light diffusion unit 3 of another end opposite of this light conduction cell 2 by an end, to receive and to spread the light beam L of this light conduction cell 2 of process.
Step S108: by a lens unit 4 that is arranged at another end opposite of this light diffusion unit 3, to transmit light beam L through these light diffusion unit 3 diffusions to this image sensering device S.
Step S110: measure the above-mentioned comparison of passing through the raw information (originalinformation) of the resulting metrical information of light beam L (measurementinformation) of this light conduction cell 2, this light diffusion unit 3 and this lens unit 4 and the light beam L that this light generation unit 1 is produced in regular turn by this image sensering device S, to judge the image sensing quality of this image sensering device.In other words, with this metrical information (measurement information) relatively and this raw information (original information), and then judge the image sensing quality of this image sensering device S by this computer installation C.
Please refer to shown in Figure 5ly, it is used for proofreading and correct the user mode synoptic diagram of homogeneous light generating system for the present invention.By among the figure as can be known, when smooth generation unit 1 of the present invention need carry out timing, an illuminometer (luxmeter) 6 can be arranged at and be used for receiving the above-mentioned zone of passing through the light beam L of this light conduction cell 2, this light diffusion unit 3 and this lens unit 4 in regular turn.
Therefore, measure the above-mentioned light beam L that passes through this light conduction cell 2, this light diffusion unit 3 and this lens unit 4 in regular turn by this illuminometer (lux meter) 6, to obtain a true brightness value (real luxvalue), and the brightness value (lux value) that is produced by this light generation unit 1 and the comparison of this true brightness value are to revise the brightness value that this light generation unit 1 is produced.For example: this light generation unit 1 can produce light loss unavoidably under the use of permanent time.But,, and cause the illumination problem of unstable so that the present invention can solve the light loss that this luminescence component is produced under permanent the use via the correcting mode of above-mentioned correction homogeneous light generating system.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (21)
1. a homogeneous light generating system that is used for testing image sensing device is characterized in that, comprising:
One smooth generation unit, it has a substrate and several and is arranged at luminescence component on this substrate electrically;
One light conduction cell, one end are communicated in this light generation unit, with receive and homogenising from light beam that this luminescence component was projected;
One smooth diffusion unit, one end are arranged at another end opposite of this light conduction cell, to receive and to spread the light beam of this light conduction cell of process; And
One lens unit, it is arranged at another end opposite of this light diffusion unit, passes through the light beam of this light diffusion unit diffusion to this image sensering device with transmission.
2. the homogeneous light generating system that is used for testing image sensing device according to claim 1 is characterized in that this luminescence component is made up of several light emitting diodes.
3. the homogeneous light generating system that is used for testing image sensing device according to claim 2 is characterized in that, this light emitting diode by several red light emitting diodes, several green LEDs, and several blue LEDs formed.
4. the homogeneous light generating system that is used for testing image sensing device according to claim 3, it is characterized in that, this red light emitting diodes, this green LED, and the light source that this blue LED projected in this light conduction cell, carry out mixed light.
5. the homogeneous light generating system that is used for testing image sensing device according to claim 1 is characterized in that, this light conduction cell has passage, and the reflectance coating of coating this channel surface that a body, runs through this body.
6. the homogeneous light generating system that is used for testing image sensing device according to claim 5 is characterized in that, this light generation unit and this light diffusion unit are arranged at two opposition side ends of this body respectively, to seal two opposition side ends of this passage.
7. the homogeneous light generating system that is used for testing image sensing device according to claim 1, it is characterized in that this lens unit comprises: the focal length that a lens group, is used to adjust the focal length of this lens group adjust assembly, and a depth of field that is used to adjust the depth of field of this lens group adjust assembly.
8. the homogeneous light generating system that is used for testing image sensing device according to claim 7 is characterized in that, by the cooperation of this focal length adjustment assembly and this depth of field adjustment assembly, this this lens group of light beam process is to produce a scattered light or directional light.
9. the homogeneous light generating system that is used for testing image sensing device according to claim 1, it is characterized in that, also further comprise: a control module, it is electrically connected at this light generation unit, exports the light beam of different brightness and colour temperature to control this light generation unit.
10. the homogeneous light generating system that is used for testing image sensing device according to claim 9 is characterized in that, also further comprises: a computer installation, it is electrically connected between this control module and this image sensering device.
11. a using method that is used for the homogeneous light generating system of testing image sensing device is characterized in that, comprises the following steps:
By a smooth generation unit, to produce a light beam, wherein this light generation unit has a substrate and several and is arranged at luminescence component on this substrate electrically;
Be communicated in a light conduction cell of this light generation unit by an end, with receive and homogenising from light beam that this luminescence component was projected;
Be arranged at a smooth diffusion unit of another end opposite of this light conduction cell by an end, to receive and to spread the light beam of this light conduction cell of process;
By a lens unit that is arranged at another end opposite of this light diffusion unit, to transmit light beam through this light diffusion unit diffusion to this image sensering device; And
Measure the above-mentioned comparison of passing through the raw information of the resulting metrical information of light beam of this light conduction cell, this light diffusion unit and this lens unit and the light beam that this light generation unit is produced in regular turn by this image sensering device, to judge the image sensing quality of this image sensering device.
12. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 11 is characterized in that this luminescence component is made up of several light emitting diodes.
13. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 12, it is characterized in that, this light emitting diode by several red light emitting diodes, several green LEDs, and several blue LEDs formed.
14. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 13, it is characterized in that, this red light emitting diodes, this green LED, and the light source that this blue LED projected in this light conduction cell, carry out mixed light.
15. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 11 is characterized in that, this light conduction cell has passage, and the reflectance coating of coating this channel surface that a body, runs through this body.
16. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 15, it is characterized in that, this light generation unit and this light diffusion unit are arranged at two opposition side ends of this body respectively, to seal two opposition side ends of this passage.
17. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 11, it is characterized in that this lens unit comprises: the focal length that a lens group, is used to adjust the focal length of this lens group adjust assembly, and a depth of field that is used to adjust the depth of field of this lens group adjust assembly.
18. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 17, it is characterized in that, by the cooperation of this focal length adjustment assembly and this depth of field adjustment assembly, this this lens group of light beam process is to produce a scattered light or directional light.
19. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 11, it is characterized in that, this homogeneous light generating system also further comprises: a control module, it is electrically connected at this light generation unit, exports the light beam of different brightness and colour temperature to control this light generation unit.
20. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 19, it is characterized in that, this homogeneous light generating system also further comprises: a computer installation, it is electrically connected between this control module and this image sensering device, being used for relatively this metrical information and this raw information, and then judge the image sensing quality of this image sensering device.
21. the using method that is used for the homogeneous light generating system of testing image sensing device according to claim 11, it is characterized in that, this homogeneous light generating system also further comprises: an illuminometer, it is used to measure the above-mentioned light beam that passes through this light conduction cell, this light diffusion unit and this lens unit in regular turn, to obtain a true brightness value, and the brightness value that is produced by this light generation unit and the comparison of this true brightness value are to revise the brightness value that this light generation unit is produced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100063791A CN101520548B (en) | 2008-02-29 | 2008-02-29 | Homogeneous light generating system used for testing image sensing device and use method thereof |
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| CN2008100063791A CN101520548B (en) | 2008-02-29 | 2008-02-29 | Homogeneous light generating system used for testing image sensing device and use method thereof |
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| CN101520548B true CN101520548B (en) | 2010-09-08 |
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| CN103591478A (en) * | 2012-08-16 | 2014-02-19 | 致茂电子(苏州)有限公司 | Artificial light source |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363232A (en) * | 1993-04-28 | 1994-11-08 | Imagica, Corp. | Device for controlling luminous energy |
| US7315322B2 (en) * | 2004-07-28 | 2008-01-01 | Eastman Kodak Company | Method of testing the uniformity of an image sensor |
| CN201225923Y (en) * | 2008-07-04 | 2009-04-22 | 久元电子股份有限公司 | System for generating homogeneous light for testing image sensing device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363232A (en) * | 1993-04-28 | 1994-11-08 | Imagica, Corp. | Device for controlling luminous energy |
| US7315322B2 (en) * | 2004-07-28 | 2008-01-01 | Eastman Kodak Company | Method of testing the uniformity of an image sensor |
| CN201225923Y (en) * | 2008-07-04 | 2009-04-22 | 久元电子股份有限公司 | System for generating homogeneous light for testing image sensing device |
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