CN116156304A - Stroboscopic optical fiber integrating sphere system - Google Patents

Stroboscopic optical fiber integrating sphere system Download PDF

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Publication number
CN116156304A
CN116156304A CN202310173720.7A CN202310173720A CN116156304A CN 116156304 A CN116156304 A CN 116156304A CN 202310173720 A CN202310173720 A CN 202310173720A CN 116156304 A CN116156304 A CN 116156304A
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CN
China
Prior art keywords
optical fiber
light source
integrating sphere
stroboscopic
light
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Pending
Application number
CN202310173720.7A
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Chinese (zh)
Inventor
陈赤
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National Institute of Metrology
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National Institute of Metrology
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Priority to CN202310173720.7A priority Critical patent/CN116156304A/en
Publication of CN116156304A publication Critical patent/CN116156304A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B43/00—Testing correct operation of photographic apparatus or parts thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10141—Special mode during image acquisition
    • G06T2207/10152—Varying illumination
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

A stroboscopic optical fiber integrating sphere system is characterized in that a rotary adapter 8 is arranged on each light inlet 2 of an integrating sphere 1; the optical fiber collimator 3 is arranged on the rotary adapter 8, the array light source and the stroboscopic control circuit board are arranged in the light source box 4, and the stroboscopic control circuit board is used for quickly or gradually lighting the array light sources; the light source box 4 is provided with a plurality of SMA optical fiber interfaces 5, and the integrating sphere 1 is connected with the light source box 4 through optical fibers 6. The invention is suitable for the test requirements of various photographing and imaging systems, can be used for testing the flicker frequency and imaging visual angle of an imaging camera, evenly distributes the light inlet 2 on the integrating sphere 1, generates a plurality of light sources through the light sources in the light source box 4, simultaneously collimates the light sources to the inside of the integrating sphere 1 through the optical fiber 6 and the optical fiber collimator 3, and tests the detector and the lens in the integrating sphere 1. The stroboscopic control circuit board in the light source box 4 can quickly and instantly lighten the array light source, control the output brightness of the light source and simulate illumination under special environments.

Description

Stroboscopic optical fiber integrating sphere system
Technical Field
The invention is applied to the technical fields of flicker frequency of an imaging camera, imaging visual angle calibration and the like, in particular to an optical fiber type stroboscopic large-field-angle integrating sphere system,
background
The stroboscopic light source is generally used for communication or signal indicator lamps in the market at present, the integrating sphere is generally used for optical measurement or used as a uniform light source, products and cases for using the stroboscopic light source together with the integrating sphere do not exist, few devices for simulating the environmental stroboscopic light source are in the market at present, and an environment which can be conveniently tested does not exist. Therefore, a convenient-to-use stroboscopic fiber integrating sphere system is needed.
The invention connects the two optical devices together, skillfully connects the light source and the integrating sphere through the optical fiber, realizes the imaging visual angle calibration function of the imaging camera, can be used for the imaging visual angle calibration of the imaging camera through the adjustment of the flicker frequency of the light source, and can also be used for evaluating the imaging frame frequency.
Disclosure of Invention
In order to solve the problems, the invention provides a stroboscopic optical fiber integrating sphere system which is convenient to use.
The invention relates to a stroboscopic optical fiber integrating sphere system which is characterized by comprising an integrating sphere 1, an optical fiber collimator 3, a light source box 4, an optical fiber 6 and a rotary adapter 8; wherein:
a plurality of light inlets 2 are uniformly distributed at equal angles on the integrating sphere 1, and each light inlet 2 is provided with a rotary adapter 8, and the rotary adapters 8 are used for adjusting the light inlet angle of the control optical fiber 6;
the rotary adapter 8 is provided with an optical fiber collimator 3, and the optical fiber collimator 3 is used for adjusting the light entering view field of the control optical fiber 6;
an array light source and a stroboscopic control circuit board are arranged in the light source box 4, and the stroboscopic control circuit board is used for quickly or gradually lighting the array light source;
the light source box 4 is provided with a plurality of SMA optical fiber interfaces 5, and the integrating sphere 1 is connected with the light source box 4 through optical fibers 6, so that the installation is convenient.
The invention has the advantages and beneficial effects that:
the invention is suitable for the test requirements of various photographing and imaging systems, can be used for testing the flicker frequency and imaging visual angle of an imaging camera, evenly distributes the light inlet 2 on the integrating sphere 1, generates a plurality of light sources through the light sources in the light source box 4, simultaneously collimates the light sources to the inside of the integrating sphere 1 through the optical fiber 6 and the optical fiber collimator 3, and tests the detector and the lens in the integrating sphere 1. The stroboscopic control circuit board in the light source box 4 can quickly and instantly lighten the array light source, control the output brightness of the light source and simulate illumination under special environments.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of a strobe fiber integrating sphere system according to the present invention.
The serial numbers in the figure indicate: integrating sphere 1, light inlet 2, optical fiber collimator 3, light source box 4, SMA fiber interface 5, optic fibre 6, sample port 7, rotatory adapter 8.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Example 1
A stroboscopic optical fiber integrating sphere system comprises an integrating sphere 1, a light source box 4, an optical fiber 6, an optical fiber collimator 3 and a rotary adapter 8. The integrating sphere 1 is provided with a plurality of light inlets 2, the light inlets 2 are provided with rotary adapters 8 for installing the optical fiber collimators 3, the optical fibers 6 and the optical fiber collimators 3 can control light inlet view fields, and the rotary adapters 8 can control light inlet angles. An array light source and a stroboscopic control circuit board are arranged in the light source box 4 and can be used for quickly and gradually lighting the array light sources. The integrating sphere 1 is connected with the light source box 4 through an optical fiber 6, and an SMA optical fiber interface 5 is arranged on the connecting port, so that the installation is convenient.
The light inlets 2 are uniformly distributed at equal angles on the integrating sphere 1, each light inlet 2 is provided with a rotary adapter 8, and the rotary adapters 8 adjust the light inlet angle.
The optical fiber collimator 3 is mounted on the rotary adapter 8, and the field of view of the incoming light is adjusted by the optical fiber collimator 3.
The light source box 4 is provided with a plurality of optical fiber interfaces 5, each optical fiber interface 5 is connected with an optical fiber 6, and the optical fiber 6 is connected with the optical fiber collimator 3. An array light source and a stroboscopic control circuit board are arranged in the light source box 4. The strobe control circuit board can quickly and individually illuminate the array light sources. The integrating sphere 1 and the light source box 4 are connected through the optical fiber 6, and the connecting port is provided with the SMA optical fiber interface 5, so that the connection is convenient.
Example 2
The stroboscopic optical fiber integrating sphere system is characterized by comprising an integrating sphere 1, an optical fiber collimator 3, a light source box 4, an optical fiber 6 and a rotary adapter 8.
A plurality of light inlets 2 are uniformly distributed at equal angles on the integrating sphere 1, and each light inlet 2 is provided with a rotary adapter 8, and the rotary adapters 8 are used for adjusting the light inlet angle of the control optical fiber 6; the rotary adapter 8 is composed of a pressing block and a ball head, and the function of rotationally adjusting the light incident angle of the control optical fiber 6 is realized by adjusting the pressing block and the ball head.
The rotary adapter 8 is provided with an optical fiber collimator 3, and the optical fiber collimator 3 is used for adjusting the light entering view field of the control optical fiber 6.
An array light source and a stroboscopic control circuit board are arranged in the light source box 4, and the stroboscopic control circuit board is used for quickly or gradually lighting the array light source; the optical fiber collimator 3 is internally provided with a collimating lens, and the light emitted by the optical fiber 6 is converged through the collimating lens, so that the function of controlling the light entering view field is realized; the array light sources are LED light sources which are orderly arranged, and the brightness of the array light sources is controlled through the stroboscopic control circuit board, so that the stroboscopic control function is realized.
The light source box 4 is provided with a plurality of SMA optical fiber interfaces 5, and the integrating sphere 1 is connected with the light source box 4 through optical fibers 6, so that the installation is convenient. The SMA optical fiber interface 5 is a standard optical fiber interface, the array light source is welded on the strobe control circuit board, and the array light source is directly opposite to the SMA optical fiber interface 5.
The bottom of the integrating sphere 1 is provided with a sample port 7, and a sample is put into the integrating sphere 1 through the sample port 7.
As described in the above examples 1-2:
the invention connects the two optical devices together, skillfully connects the light source and the integrating sphere through the optical fiber, realizes the imaging visual angle calibration function of the imaging camera, can be used for the imaging visual angle calibration of the imaging camera through the adjustment of the flicker frequency of the light source, and can also be used for evaluating the imaging frame frequency.
The invention is suitable for the test requirements of various photographing and imaging systems, can be used for testing the flicker frequency and imaging visual angle of an imaging camera, evenly distributes the light inlet 2 on the integrating sphere 1, generates a plurality of light sources through the light sources in the light source box 4, simultaneously collimates the light sources to the inside of the integrating sphere 1 through the optical fiber 6 and the optical fiber collimator 3, and tests the detector and the lens in the integrating sphere 1. The stroboscopic control circuit board in the light source box 4 can quickly and instantly lighten the array light source, control the output brightness of the light source and simulate illumination under special environments.
The above embodiments are only for illustrating the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and the scope of the present invention is not limited to the embodiments, i.e. any modifications, equivalent substitutions, improvements, etc. made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The stroboscopic optical fiber integrating sphere system is characterized by comprising an integrating sphere 1, an optical fiber collimator 3, a light source box 4, an optical fiber 6 and a rotary adapter 8; wherein:
a plurality of light inlets 2 are uniformly distributed on the integrating sphere 1 at equal angles, each light inlet 2 is provided with a rotary adapter 8, and the rotary adapters 8 are used for adjusting the light inlet angle of the control optical fiber 6
The rotary adapter 8 is provided with an optical fiber collimator 3, and the optical fiber collimator 3 is used for adjusting the light entering view field of the control optical fiber 6;
an array light source and a stroboscopic control circuit board are arranged in the light source box 4, and the stroboscopic control circuit board is used for quickly or gradually lighting the array light source;
the light source box 4 is provided with a plurality of SMA optical fiber interfaces 5, and the integrating sphere 1 is connected with the light source box 4 through optical fibers 6, so that the installation is convenient.
2. The stroboscopic optical fiber integrating sphere system according to claim 1, wherein the rotary adapter 8 is composed of a press block and a ball head, and the function of rotationally adjusting the incident angle of the control optical fiber 6 is realized by adjusting the press block and the ball head.
3. The stroboscopic optical fiber integrating sphere system according to claim 1, wherein the optical fiber collimator 3 comprises a collimator lens, and the light emitted from the optical fiber 6 is converged by the collimator lens to realize the function of controlling the incoming light field.
4. The stroboscopic fiber integrating sphere system according to claim 1, wherein the array light source is an orderly arranged LED light source, and the function of stroboscopic control is realized by controlling the brightness of the array light source through the stroboscopic control circuit board.
5. The strobe fiber integrating sphere system of claim 1, wherein the SMA fiber interface 5 is a standard fiber interface, the array light source is soldered to the strobe control circuit board, and the array light source is directly opposite the SMA fiber interface 5.
6. The stroboscopic optical fiber integrating sphere system according to claim 1, wherein a sample port 7 is provided at the bottom of the integrating sphere 1, and a sample is put into the inside of the integrating sphere 1 through the sample port 7.
CN202310173720.7A 2023-02-28 2023-02-28 Stroboscopic optical fiber integrating sphere system Pending CN116156304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310173720.7A CN116156304A (en) 2023-02-28 2023-02-28 Stroboscopic optical fiber integrating sphere system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310173720.7A CN116156304A (en) 2023-02-28 2023-02-28 Stroboscopic optical fiber integrating sphere system

Publications (1)

Publication Number Publication Date
CN116156304A true CN116156304A (en) 2023-05-23

Family

ID=86373441

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310173720.7A Pending CN116156304A (en) 2023-02-28 2023-02-28 Stroboscopic optical fiber integrating sphere system

Country Status (1)

Country Link
CN (1) CN116156304A (en)

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