CN209326939U - A kind of focusing mirror integrating sphere uniform source structure - Google Patents
A kind of focusing mirror integrating sphere uniform source structure Download PDFInfo
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- CN209326939U CN209326939U CN201920324845.4U CN201920324845U CN209326939U CN 209326939 U CN209326939 U CN 209326939U CN 201920324845 U CN201920324845 U CN 201920324845U CN 209326939 U CN209326939 U CN 209326939U
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- focusing mirror
- integrating sphere
- uniform source
- spherical cavity
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Abstract
The utility model discloses a kind of focusing mirror integrating sphere uniform source structures, it includes: integral spherical cavity (1), integral spherical cavity (1), which is internally provided with, blocks screen (4), it is characterized by: integral spherical cavity (1) upper surface offers more than one non-homogeneous smooth light inlet (5), setting is positioned equidistant non-homogeneous light source (3) and half ellipsoidal surface focusing mirror (2) above each non-homogeneous smooth light inlet (5), and non-homogeneous light source (3) is located at below half ellipsoidal surface focusing mirror (2)；Integral spherical cavity (1) bottom is provided with uniform source of light light-emitting window (6), and emergent ray test plane (7) are posted on uniform source of light light-emitting window (6)；The integrating sphere light source for solving technology can not independently deploy mixed light；Light source is external to lead to problems such as focus incident light ineffective.
Description
Technical field
The utility model belongs to light irradiation evenness field of measuring technique, more particularly to a kind of focusing mirror integrating sphere
Homogeneous light source structure.
Background technique:
Integrating sphere is the spherical cavity that an inner surface has uniformly smeared diffuse-reflective material, each for collecting spherical shell surface
Uniformly mixed light of the test light of opening after reflection or scattering, and be often referred to as light and lead to ball.What integrating sphere was collected into
Uniform source of light is frequently as scattering light source or for measuring illuminator optical parameter, such as reflection coefficient, spectral power, it is also possible to
In measurement laser and LED.
Integrating sphere light source can be used as the reference source for calibrating various optical remote sensing radiation devices, in grinding for optical remote sensing instrument
System has important reference value with calibration aspect.Secondly, integrating sphere uniform source can collimate CCD camera, CCS sunlight
System, image array and laboratory optical imaging system are calibrated, and the light source manufacturing, illuminating engineering research are widely used in
Field.In addition it is also possible to apply airborne and spaceborne RS detection, bio-pharmaceuticals, in terms of.
Existing integrating sphere includes that inner wall has the integral spherical shell of uniform diffuse reflection coating, light source heterogeneous, incident ray
Action pane blocks screen, receiving platform etc..Conventional design incident light focusing effect is less desirable, it is difficult to realize heterogeneous light
It deploys and mixes.
Utility model content:
The technical problems to be solved in the utility model: providing a kind of focusing mirror integrating sphere uniform source structure, with solution
Certainly the integrating sphere light source incident light focusing effect of the prior art is less desirable, it is difficult to realize heterogeneous light allotment with the skills such as mix
Art problem.
The technical solution of the utility model includes:
A kind of focusing mirror integrating sphere uniform source structure, it includes: integral spherical cavity, and integrating sphere chamber is internally provided with screening
Baffle plate, integral spherical cavity upper surface offer more than one non-homogeneous smooth light inlet, setting above each non-homogeneous smooth light inlet
It is positioned equidistant non-homogeneous light source and half ellipsoidal surface focusing mirror, non-homogeneous light source is located under half ellipsoidal surface focusing mirror
Side；Integrating sphere bottom of chamber portion is provided with uniform source of light light-emitting window, and emergent ray test plane is posted on uniform source of light light-emitting window.
It integrates spherical cavity and blocks and be evenly coated with diffusing reflection coating, reflectivity 98% on screen.
Non-homogeneous light source is light emitting diode, and the light emitting diode at least has RGB monochromatic；Quantity is greater than 2.
Non-homogeneous smooth light inlet is circle, and radius is at 20-40 millimeters.
Uniform source of light light-emitting window is circle, and radius is the 30-35% for integrating spherical cavity radius.
Emergent ray test plane is rectangular test plane, and test plane length and width are equal to the diameter of light-emitting window；Test is flat
Light irradiation survey meter is installed on face.
Blocking screen is platform cylindrical shape.
The utility model has the beneficial effects that
The LED incident light emitted can be focused on circle by the half ellipsoidal surface focusing mirror being arranged outside the utility model
Shape light inlet goes out, and the uniformity of integrating sphere light source can be improved, so that experiment test more efficient stable.
The polychrome non-homogeneous light source being equidistantly placed above the utility model light inlet can mix according to actual needs
Mixed light.
The utility model selects light emitting diode (LED) to be used as light source, based on its luminous efficiency is high, consumption is small, the service life is long,
The advantages that at low cost, photochromic pure, easily controllable installation.
The utility model blocks screen using platform cylindrical shape, and it is low to block screen center high surrounding, and light can be effectively prevented
The direct projection diffusing reflection number intracavitary to test plane, increasing integrating sphere.
The opening diameter that the utility model goes out light is the one third of integrating sphere diameter.Conference, which was arranged, in opening lets out light
Dew, causes outgoing light homogeneity bad；Opening setting is too small to will affect the effect presented in test plane.
The utility model spherical cavity inner surface diffuse-reflective material has good reflecting effect, improves the uniformity of emergent light.
Efficiently, rationally, the integrating sphere light source for solving the prior art can not independently deploy mixed light for the utility model design；
Light source is external to lead to problems such as focus incident light ineffective.The utility model improves the accurate of light radiation uniformity measurement
Property and measurement efficiency, reduce costs, can for optical instrument development and calibration, illuminating engineering research reference value be provided.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment:
A kind of focusing mirror integrating sphere uniform source structure, it includes: integral spherical cavity 1, and integral spherical cavity 1 is internally provided with
Block screen 4, integral 1 upper surface of spherical cavity offers more than one non-homogeneous smooth light inlet 5, on each non-homogeneous smooth light inlet 5
Side's setting is positioned equidistant non-homogeneous light source 3 and half ellipsoidal surface focusing mirror 2, and non-homogeneous light source 3 is located at half ellipsoidal surface focusing
2 lower section of reflecting mirror；Integral 1 bottom of spherical cavity is provided with uniform source of light light-emitting window 6, and emergent ray survey is posted on uniform source of light light-emitting window 6
Try plane 7.
It integrates spherical cavity 1 and blocks and be evenly coated with diffusing reflection coating, reflectivity 98% on screen 4.
The spraying process of diffusing reflection coating must be required in strict accordance with spraying, layer-by-layer even application；Diffuse-reflective material oxidation
Magnesium or barium sulfate must have good reflecting effect.
Non-homogeneous light source 3 is light emitting diode, and the light emitting diode at least has RGB monochromatic；Quantity is greater than 2.
Non-homogeneous smooth light inlet 5 is circle, and radius is at 20-40 millimeters.
Uniform source of light light-emitting window 6 is circle, and radius is the 30-35% for integrating 1 radius of spherical cavity.Conference, which was arranged, in opening makes light
Line leakage, causes outgoing light homogeneity bad；Opening setting is too small to will affect the effect presented in test plane, sets radius to
The 30-35% for integrating 1 radius of spherical cavity is best.
Emergent ray test plane 7 is rectangular test plane, and test plane length and width are equal to the diameter of light-emitting window；Test is flat
Light irradiation survey meter is installed on face.
Blocking screen 4 is platform cylindrical shape.The platform cylindrical shape being arranged inside integrating sphere blocks screen, the high surrounding in center
It is low, the light direct projection diffusing reflection number intracavitary to test plane, increasing integrating sphere can be effectively prevented, obtain more ideal equal
Even light source.
The platen edge that blocks of platform cylindrical shape is tightly fastened with the intracavitary portion of integrating sphere using glue rifle.
Focusing mirror integral ball surface, which enters light open amount, to be changed according to the actual situation, the color of non-homogeneous light source
Can also be adjusted according to actual needs with quantity, for make order of reflection in spherical cavity is more, emergent ray more evenly, can be with
The screen angle of blocking of the important actor planar is adjusted, the uniformity measurement of integrating sphere is optimized and improved.
Claims (7)
1. a kind of focusing mirror integrating sphere uniform source structure, it includes: integral spherical cavity (1), setting inside integral spherical cavity (1)
Block screen (4), it is characterised in that: integral spherical cavity (1) upper surface offers more than one non-homogeneous smooth light inlet (5), respectively
Setting is positioned equidistant non-homogeneous light source (3) and half ellipsoidal surface focusing mirror (2) above a non-homogeneous smooth light inlet (5), non-
Uniform source of light (3) is located at below half ellipsoidal surface focusing mirror (2)；Integral spherical cavity (1) bottom is provided with uniform source of light light-emitting window
(6), emergent ray test plane (7) are posted on uniform source of light light-emitting window (6).
2. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: integral spherical cavity
(1) it and blocks and is evenly coated with diffusing reflection coating, reflectivity 98% on screen (4).
3. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: non-homogeneous light
Source (3) is light emitting diode, and the light emitting diode at least has RGB monochromatic；Quantity is greater than 2.
4. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: non-homogeneous light
Light inlet (5) is circle, and radius is at 20-40 millimeters.
5. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: uniform source of light
Light-emitting window (6) is circle, and radius is the 30-35% for integrating spherical cavity (1) radius.
6. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: emergent ray
Test plane (7) is rectangular test plane, and test plane length and width are equal to the diameter of light-emitting window；Light spoke is installed in test plane
According to survey meter.
7. a kind of focusing mirror integrating sphere uniform source structure according to claim 1, it is characterised in that: block screen
It (4) is platform cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920324845.4U CN209326939U (en) | 2019-03-14 | 2019-03-14 | A kind of focusing mirror integrating sphere uniform source structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920324845.4U CN209326939U (en) | 2019-03-14 | 2019-03-14 | A kind of focusing mirror integrating sphere uniform source structure |
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| CN209326939U true CN209326939U (en) | 2019-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738159A (en) * | 2019-03-14 | 2019-05-10 | 贵州大学 | A kind of focusing mirror integrating sphere uniform source |
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2019
- 2019-03-14 CN CN201920324845.4U patent/CN209326939U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738159A (en) * | 2019-03-14 | 2019-05-10 | 贵州大学 | A kind of focusing mirror integrating sphere uniform source |
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