Optical probe and color analyzer with same

Abstract

The utility model discloses an optical probe and a color analyzer with the same. The optical probe comprises a light inlet unit and a light outlet unit, the reflecting lens is located on the inner wall of the first sleeve, the adjusting piece is used for installing and fixing the reflecting lens, and the adjusting piece is configured to adjust the angle of the reflecting lens relative to incident light, so that light rays at different angles enter an optical probe after being reflected by the reflecting lens. By adjusting the position and the inclination angle of the reflecting lens in the first sleeve, light of different angles can enter, the purpose of analyzing images of different angles is achieved, the constraint that a color analyzer can only measure chromaticity information of light beams in the vertical direction is eliminated, the test cost and occupied test space are saved, the structure is simple, and the practicability is high. The automation degree is high, and the testing efficiency can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical detection equipment field, more specifically, relate to a kind of optical probe and the color analysis instrument with it. BACKGROUND

[0002] With the continuous progress of technology, liquid crystal display gradually transits to OLED display technology, and this display technology has high requirements for color measurement, which requires accurate measurement of the chrominance and brightness of the display, and then realizes GAMMA adjustment of the display through certain algorithm. At present, most manufacturers at home and abroad use point color analyzers for detection, but the actual bright chrominance of the existing display screen will be greatly different at different angles due to the difference of electronic components, and multi-angle measurement of the display is needed. The point color analyzers or imaging colorimeters used at present generally adopt vertical placement during measurement, and if multi-angle testing is required, mechanical devices are needed to deflect the testing equipment, or multiple testing equipment are needed to be placed at different angles for measurement, which not only increases the testing cost, but also greatly occupies the testing space. SUMMARY

[0003] In view of the above problems, one object of the utility model is to provide an optical probe for multi-angle testing.

[0004] Another object of the utility model is to provide a color analyzer with the above optical probe.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, an optical probe is provided, comprising:

[0007] The light inlet unit comprises:

[0008] A first sleeve;

[0009] A reflecting mirror is arranged on the inner wall of the first sleeve,

[0010] An adjusting member is arranged for mounting and fixing the reflecting mirror, and the adjusting member is configured to adjust the angle of the reflecting mirror relative to incident light, so that light rays at different angles are reflected by the reflecting mirror and enter the optical probe.

[0011] In addition, preferably, the reflecting mirror is one or a plurality of uniformly distributed reflecting mirrors on the inner wall, and the plurality of reflecting mirrors reflect light rays at different angles of different regions of the product to be measured.

[0012] In addition, preferably, a sliding rail is arranged on the inner wall of the first sleeve along the circumference of the first sleeve.

[0013] The reflective lens is arranged on the slide rail through a driving member, and the reflective lens is capable of moving along the slide rail under the driving of the driving member.

[0014] The adjusting member is located between the driving member and the reflective lens, and is used for adjusting the reflection angle of the reflective lens.

[0015] In addition, preferably, the adjusting member comprises a first telescopic arm and a second telescopic arm, one end of the first telescopic arm and the second telescopic arm is fixedly connected with the driving member, and the other end of the first telescopic arm and the second telescopic arm is respectively hingedly connected with the reflective lens.

[0016] The first telescopic arm and the second telescopic arm respectively adjust the telescopic length, so as to adjust the angle of the reflective lens relative to the central axis of the first sleeve.

[0017] In addition, preferably, the first telescopic arm and the second telescopic arm are arranged in parallel, and the first telescopic arm extends perpendicularly to the axial direction of the first sleeve.

[0018] In addition, preferably, the optical probe further comprises a light processing unit, one end of the first sleeve away from the light processing unit is the light inlet end of the light inlet unit, and the other end of the first sleeve close to the light processing unit is the light outlet end of the light inlet unit.

[0019] The light inlet end of the light inlet unit is fixedly connected with a light-transmitting glass, a central part of the light-transmitting glass is provided with an incident opening, and a claspable baffle is arranged at the incident opening, so that the light respectively enters from the incident opening or enters from the light-transmitting glass after being reflected by the reflective lens by controlling the opening and closing of the baffle and the angle of the reflective lens.

[0020] In addition, preferably, the light processing unit comprises a front optical assembly, a light uniformizing assembly, an imaging assembly and a light detecting assembly, and the front optical assembly, the light uniformizing assembly, the imaging assembly and the light detecting assembly are sequentially arranged along the light beam propagation direction.

[0021] In addition, preferably, the light uniformizing assembly comprises a second sleeve and a fiber bundle arranged in the second sleeve.

[0022] One end of the second sleeve close to the front optical assembly is provided with a fiber input hole, and the other end of the second sleeve is provided with at least one fiber output hole.

[0023] The fiber bundle comprises a main fiber bundle and at least one branch fiber bundle branched from the main fiber bundle, and a light input end on the main fiber bundle is arranged in the fiber input hole, and a light output end on each branch fiber bundle is arranged in one fiber output hole.

[0024] In addition, preferably, the optical fiber bundle comprises a main optical fiber bundle and at least three branch optical fiber bundles branched from the main optical fiber bundle;

[0025] The light detection assembly comprises light detectors arranged one-to-one with the at least three branch optical fiber bundles;

[0026] The light processing unit further comprises optical filters arranged between the light output ends of the branch optical fiber bundles and the light detection assembly, respectively.

[0027] According to another aspect of the present application, a color analyzer is provided, comprising the optical probe as described above, which receives a light beam and converts a light signal into an electric signal.

[0028] The present application has the following advantages:

[0029] In view of the technical problems existing in the prior art, the present application provides an optical probe and a color analyzer having the same, wherein the reflecting mirror is installed in the first sleeve of the light inlet unit through the adjusting member, the adjusting member is used to adjust the inclination angle of the reflecting mirror, and the sliding rail is arranged in the first sleeve, so that the reflecting mirror can move in the first sleeve by 360° along the sliding rail. By adjusting the position and the inclination angle of the reflecting mirror in the first sleeve, light beams with different angles can enter the optical probe, and the purpose of analyzing images with different angles is achieved. The color analyzer can analyze the chrominance information of light beams with different angles, and the test cost and the test space are saved. The structure is simple, the degree of automation is high, and the test efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0031] Figure 1 A light path diagram is shown when a light beam vertically incident enters the optical probe provided by the embodiment of the present application.

[0032] Figure 2 A light path diagram is shown when a light beam vertically incident enters the optical probe provided by the embodiment of the present application.

[0033] Figure 3 An internal structure diagram of the light inlet unit provided by the embodiment of the present application is shown.

[0034] Figure 4 An enlarged view of position A in the above figure is shown. Figure 2

[0035] Figure 5 A structure diagram of the light processing unit provided by the embodiment of the present application is shown.

[0036] ​Figure 6 A structure schematic diagram of the uniform light assembly is shown.

[0037] Figure 7 A structure schematic diagram of the uniform light assembly is shown. Figure 6 An end face view of a light input end of the uniform light assembly.

[0038] Figure 8 An end face view of a light input end of the uniform light assembly. Figure 6 An end face view of a light output end of the uniform light assembly. DETAILED DESCRIPTION

[0039] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0040] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated, it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact of the first and second features, or indirect contact of the first and second features through another feature between them.

[0042] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and not to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0043] Currently, color measurement for flat panel displays is mostly performed using point color analyzers and imaging colorimeters. However, due to the differences in electronic components, the actual brightness and color of existing displays can vary significantly at different angles, requiring multi-angle measurements. The point color analyzers or imaging colorimeters currently used are generally mounted vertically. To perform multi-angle tests, mechanical devices are needed to deflect the testing equipment, or multiple testing devices need to be placed at different angles for measurement. This not only increases testing costs but also occupies a lot of testing space.

[0044] To address the shortcomings of existing technologies, this invention provides an optical probe that can be used in optical inspection equipment (such as imaging colorimeters and color analyzers) to collect the light beam emitted by the device being inspected and convert the optical signal into an electrical signal output. Combined with... Figures 1-8 As shown, the optical probe includes a light-inlet unit 1, through which the light beam enters. The light-inlet unit 1 uses the principle of reflection to transmit the light beams from different angles to the light processing unit 2 and convert the optical signal into an electrical signal for testing.

[0045] In a specific embodiment, such as Figures 1-4 As shown, the light-gathering unit 1 includes a first sleeve 11, a slide rail 12, a reflective mirror 13, a driving component 14, and an adjusting component 15. The slide rail 12 is disposed inside the first sleeve 11 and is fixed to the inner wall of the first sleeve 11. Furthermore, in a more preferred embodiment, the slide rail 12 can be embedded in the inner wall of the first sleeve 11 to allow the light beam to have a larger propagation space within the first sleeve 11.

[0046] like Figure 3 As shown, the slide rail 12 is arranged circumferentially within the first sleeve 11 and is concentrically positioned with the first sleeve 11. In this embodiment, the slide rail 12 is circular, and the reflective lens 13 is mounted on the slide rail 12 via a driving member 14. The reflective lens 13 can move 360° along the slide rail 12 within the first sleeve 11 under the drive of the driving member.

[0047] It should be noted that in practical applications, the shape of the slide rail 12 can be set as needed, and is not limited to a circle. It can also be an arc, a curve, or other shapes. The reflective lens 13 can be set to one or more depending on the shape of the slide rail 12 and the reflection requirements. This utility model does not limit this.

[0048] The adjustment component 15 is located between the driving component 14 and the reflecting lens 13, connecting the driving component 14 and the reflecting lens 13. It is used to adjust the angle of the reflecting lens 13 relative to the incident light, so that light rays at different angles can enter the optical probe after passing through the reflecting lens 13. The adjustment component 15 and the driving component 14 cooperate to enable the reflecting lens 13 to reflect non-perpendicular light beams from various angles to the light processing unit 2, realizing multi-angle measurement of the display detection area.

[0049] In another preferred embodiment, the reflective lens 13 can be directly installed and positioned inside the first sleeve 11. The reflective lens 13 can be a plurality of lenses evenly distributed around the first sleeve 11. The reflection angle of the plurality of reflective lenses 13 can be adjusted by the adjustment component 15. When collecting light from different positions and angles of the product under test, the reflection angle of each reflective lens 15 can be adjusted as needed. For example, the reflection angle of other reflective lenses can be adjusted so that they do not reflect light, so that a certain reflective lens reflects light from a certain direction of the product under test, thus meeting the detection requirements of different angles or areas.

[0050] In this embodiment, the end of the first sleeve 11 furthest from the light processing unit 2 is the light inlet end of the light inlet unit 1, through which the light beam from the device under test enters; the end of the first sleeve 11 closest to the light processing unit 2 is the light outlet end of the light inlet unit 1, and the light processing unit 2 is connected to the light outlet end of the light inlet unit 1. The light beam under test enters the light processing unit 2 through the light outlet end of the light inlet unit 1. During testing, the light beam enters the first sleeve 1 from the light inlet end of the light inlet unit 1, and the vertically oriented light beam directly enters the light processing unit 2 from the light outlet end (e.g., ...). Figure 1 (As shown), beams of light from other angles enter the first sleeve 1 and are reflected by the reflecting mirror 13 before being transmitted to the light processing unit 2 (as shown). Figure 2 (As shown).

[0051] The slide rail 12 and the driving component 14 form a rolling arc guide pair, allowing the reflective lens 13 to move along the slide rail 12 and rotate 360° around the central axis of the first sleeve 11. In a specific example, such as Figure 4 As shown, the slide rail 12 is a roller arc guide rail, and the driving component 14 is a roller bearing with a V-groove. This roller bearing can roll on the V-shaped guide surface of the slide rail 12 to achieve arc motion. The adjusting component 15 and the reflective lens 13 are mounted on the driving component 14 via a mounting plate 16, so that the reflective lens 13 and the adjusting component 15 can move with the movement of the driving component 14. In other embodiments, the slide rail 12 can also be a slide rail with internal teeth, and the driving component 14 is a rotary motor and a gear fixed to the output end of the rotary motor. This gear can mesh with the internal teeth of the slide rail 12. By rotating the rotary motor, the gear moves along the slide rail 12, thereby realizing the movement of the reflective lens 13 along the slide rail 12.

[0052] In one embodiment, the adjusting member 15 is located between the reflecting mirror 13 and the driving member 14, connecting the reflecting mirror 13 and the driving member 14. Specifically, as shown... Figure 4 As shown, the adjusting component 15 includes a first telescopic arm 151 and a second telescopic arm 152. The first and second telescopic arms 151 and 152 are miniature telescopic arms used to mount the reflective lens 13 inside the first sleeve 11. A microcontroller controls the adjustment of the current passing through the first and second telescopic arms 151 and 152, causing them to extend and retract respectively, creating a difference in their relative positions. This adjusts the angle of the reflective lens 13, allowing the beam of light at the adjusted angle to enter the light processing unit 2, enabling measurement of different angles in the test area. When the lengths of the first and second telescopic arms 151 and 152 are equal, the reflective lens 13 is parallel to the axial direction of the first sleeve 11.

[0053] Specifically, the first telescopic arm 151 and the second telescopic arm 152 are arranged in parallel. One end of the first telescopic arm 151 is fixedly connected to the driving member 14 and is specifically mounted on the mounting plate 16, while the other end of the first telescopic arm 151 is hinged to the reflecting mirror 13. Similarly, one end of the second telescopic arm 152 is fixedly connected to the driving member 14 and is specifically mounted on the mounting plate 16, while the other end of the second telescopic arm 152 is hinged to the reflecting mirror 13. The first telescopic arm 151 and the second telescopic arm 152 can extend and retract respectively, adjusting their lengths to adjust the angle of the reflecting mirror 13 relative to the central axis of the first sleeve 11, so as to transmit light beams from different angles to the light processing unit 2.

[0054] In one specific embodiment, the first telescopic arm 151 extends perpendicularly to the axial direction of the first sleeve 11, and the second telescopic arm 152 is parallel to the first telescopic arm 151 along the extension direction of the first sleeve 11, and the second telescopic arm 152 also extends perpendicularly to the axial direction of the first sleeve 11.

[0055] In one specific embodiment, the number of telescopic arms of the adjusting member 15 may also be 3, 4 or more, depending on the specific needs.

[0056] In one embodiment, the reflective mirror 13 is a MEMS micromirror, which is a tiny, drivable mirror fabricated based on micro-electro-mechanical system (MEMS) technology. The mirror surface diameter is typically only a few millimeters. Compared to traditional optical scanning mirrors, it has advantages such as light weight, small size, ease of mass production, and low production cost.

[0057] In one specific embodiment, the light inlet end of the light inlet unit 1 is provided with a light-transmitting glass 17, which is combined with the end of the first sleeve 11. Light beams from different directions can enter the first sleeve 11 through the light-transmitting glass 17. By adjusting the position and reflection angle of the reflecting mirror 13 in the first sleeve 11, multi-angle measurement can be achieved. The center of the light-transmitting glass 17 is provided with an incident opening 18 for the vertical incident light beam. When the vertical incident light beam enters the first sleeve 11, the inclination angle of the reflecting mirror 13 needs to be adjusted to an angle that does not reflect the light beam (for example, the reflecting mirror 13 is parallel to the incident light beam), so that the incident light beam cannot be reflected.

[0058] The incident opening 18 is provided with a closable baffle 19. When the baffle 19 is closed, the incident opening 18 is shielded, so that the light beam cannot enter the first sleeve 11 from the incident opening 18. As shown in Figure 1 , when the vertical incident light beam is detected, the baffle 19 needs to be opened, so that the incident opening 18 is exposed, so that the vertical incident light beam can enter, and the measurement of the vertical incident light beam can be realized. As shown in Figure 2 , when the multi-angle light beam is detected, the baffle 19 needs to be closed, so that the incident opening 18 is shielded, and the multi-angle incident light beam can only enter through the light-transmitting glass 17, and the multi-angle measurement can be realized through the reflecting mirror 13.

[0059] In one embodiment, the light processing unit 2 includes a front optical assembly 21, a light uniformizing assembly 22, an imaging assembly 23, and a light detection assembly 24 arranged in sequence along the light beam propagation direction. It can be understood that the light beam propagation direction is the direction indicated by the arrow in Figure 5 .

[0060] The front optical assembly 21, the light uniformizing assembly 22, the imaging assembly 23, and the light detection assembly 24 are arranged concentrically with the first sleeve 11, and the end close to the first sleeve 11 is the light inlet end.

[0061] Figure 6 The structure of the light uniformizing assembly 22 in Figure 5 is shown in Figure 7 , the cross-sectional view of the light input end of the light uniformizing assembly 22 in Figure 6 is shown in Figure 8 , and the end view of the light output end of the light uniformizing assembly 22 in Figure 6 is shown in Figures 6-8As shown, the light homogenizing assembly 22 includes a main optical fiber bundle 221 located in a second sleeve 220 and at least one branch optical fiber bundle 222 branched from the main optical fiber bundle 221, and in the embodiment of the utility model, the main optical fiber bundle 221 branches into three branch optical fiber bundles 222. The light beams are input from the light input end 223 of the main optical fiber bundle 221, and after homogenization, are output from the light output end 224 of each branch optical fiber bundle 222. In other embodiments, the branch optical fiber bundle can also be four, which can be used for flicker detection in addition to RGB three-color detection.

[0062] The pre-optical assembly 21 is used to couple the light beams emitted by the detected device and transmitted by the light input unit 1 to the light input end of the light homogenizing assembly 22. Figure 5 The pre-optical assembly 21 can include a lens group of a first lens 211, a second lens 212 and a third lens 213 arranged in sequence along the light beam propagation direction, which is used to couple the light beams emitted by the detected device 100 to the light input end 223 of the main optical fiber bundle 221 in the light homogenizing assembly 22; the optical fiber bundle in the light homogenizing assembly 22 is used to homogenize the light beams coupled to the light homogenizing assembly 22, and divide the light beams into three paths, respectively output through one branch optical fiber bundle 222, and couple the homogenized light beams to the imaging assembly 23; the imaging assembly 23 is used to focus the light beams output from the light output end 224 of each branch optical fiber bundle 222 in the light homogenizing assembly 22 to the light detector 24 respectively; the light detector 24 is used to detect the light beams focused by the imaging assembly 23, and convert the light signals into electrical signals.

[0063] Due to the differences in the refractive index of the local fiber core and the silicon glass cladding, the local thickness and the existence of bending in the manufacturing process, the exit angle of the incident light beam is independent of the incident angle. Due to the influence of the manufacturing process, there will be local differences in the refractive index in the optical fiber, the thickness of the optical fiber is not the same everywhere, and the optical fiber will be bent, which will cause the reflection of light in the optical fiber to become random, which is no longer total reflection. Based on this, when multiple optical fibers are combined into an optical fiber bundle, it is found that the exit angle of the light emitted through the optical fiber bundle can be homogenized, thereby achieving the effect of light homogenization, and the same light homogenization effect as the diffusion plate and optical lens can be achieved. In addition, after homogenization, the light intensity of the emitted light follows a Gaussian distribution according to the exit angle, and the light emitted along the normal line of the light output end 224, i.e. the 0-degree angle light, is the strongest, and the larger the angle, the weaker the light intensity. Therefore, the embodiment of the utility model uses an optical fiber bundle to replace the existing diffusion plate, and uses the optical fiber bundle as a light homogenization system of the optical probe, which can improve the transmission efficiency of light, improve the detection accuracy and sensitivity of the detection device, and simplify the structure of the optical probe; and in a multi-channel optical system, a corresponding number of multiple branch optical fiber bundles can be provided, at this time the optical fiber bundle can simultaneously play a role of light splitting, further simplifying the structure of the optical probe and realizing miniaturization of the optical probe.

[0064] The optical probe provided by the embodiment of the utility model, the homogenizing assembly 22 includes an optical fiber bundle, the single optical fiber in the optical fiber bundle is used to make the refractive index difference of the local optical fiber core and the silicon glass cladding layer different, the local thickness different and the bending exist, etc, the emitting angle of the incident light beam is irrelevant to the incident angle, the incident light beam is incident at any angle (less than the numerical aperture value of the optical fiber), the emitting angle is randomly mixed, the emitting angle is homogenized, and the light intensity is Gaussian distribution according to the emitting angle, and then the optical fiber bundle homogenizes the light beam input to the light input end, the light beam is uniformly emitted from the light output end, the problem that the transmission efficiency of light is low, the structure is complex, the manufacturing difficulty is big and the cost is high in the homogenizing system using the diffusion plate or the lens is overcome, the transmission efficiency of light is improved, the detection precision and the sensitivity of the detection equipment are improved, and the miniaturization of the optical probe is realized.

[0065] In the embodiment, the second sleeve 220 is provided with an optical fiber input hole 2201 at one end close to the front optical assembly 21 and at least one optical fiber output hole 2202 at the other end. The optical fiber bundle includes a main optical fiber bundle 221 and three branch optical fiber bundles 222 branched from the main optical fiber bundle 221, and the light input end 223 on the main optical fiber bundle 221 is arranged in the optical fiber input hole 2201, and the light output end 224 on each branch optical fiber bundle 222 is arranged in an optical fiber output hole 2202.

[0066] Wherein, the shape of the second sleeve 220 is not limited, which can be cylindrical or three-dimensional figure such as polyhedron; accordingly, the two end faces of the second sleeve 220 as shown in Figure 7 and Figure 8 may be circular, rectangular and triangular figures.

[0067] Continuing to refer to Figures 6-8 , optionally, the end faces of the light input end 223 of the main optical fiber bundle 221 and the light output end 224 of each branch optical fiber bundle 222 are subjected to optical polishing treatment, which meets the design requirements of optical indexes and ensures that the end face of the main optical fiber bundle 221 is perpendicular to the main optical fiber bundle 221 and the end face of the branch optical fiber bundle 222 is perpendicular to the branch optical fiber bundle 222, so that the light beam transmitted by the front optical assembly 21 is all transmitted in the optical fiber bundle, and the light beam emitted from the optical fiber bundle is all received by the imaging assembly 23, thereby reducing the loss of light in the transmission process.

[0068] Continuing to refer to Figures 6-8 , optionally, the homogenizing assembly 22 further includes a fastening structure 225 arranged in the second sleeve 220, and the fastening structure 225 is used for fixing the optical fiber bundle.

[0069] In the embodiment of the utility model, the fastening structure 225 is resin filled in the internal gap of the second sleeve 225, the resin and the optical fiber bundle can be combined closely together by adopting hot melting technology, and the light in the optical fiber bundle is prevented from bending and shaking in the second sleeve 220.

[0070] In one embodiment, referring to Figure 5 , the imaging assembly 23 comprises lenses respectively arranged at the light output ends 224 of the branch optical fiber bundles 222, and the light detection assembly 24 comprises light detectors respectively arranged corresponding to the branch optical fiber bundles 222. The lenses are used to focus the light beams output by the branch optical fiber bundles 222 onto the corresponding light detectors, and the light detectors are used to receive and detect the light beams output by the corresponding branch optical fiber bundles 222 and convert the light signals into electrical signals.

[0071] In one specific embodiment, referring to Figure 5 , the light processing unit 2 further comprises optical filters 25 respectively arranged corresponding to the branch optical fiber bundles 222 between the lenses and the light detectors, and the optical filters 25 are used to filter out the light beams of the required colors so that the light beams of the required colors are focused onto the light detectors. As shown in Figure 5 , the optical filters 25 comprise three optical filters, which can be red light filters, blue light filters and green light filters respectively. The three light beams output by the light homogenizing assembly 22 are focused by the lenses, pass through the corresponding optical filters 25, and form red, blue and green light, and the three kinds of color light are coupled to the corresponding light detectors of the branch optical fiber bundles 222 respectively, and the light detectors convert the brightness and chrominance information of the three kinds of color light into electrical signals to realize the analysis of the RGB three-color light.

[0072] It should be noted that in the embodiment of the utility model, the number of branches of the branch optical fiber bundles 222 can be set according to actual requirements, and the branch optical fiber bundles 222 can be single-branch (one bundle), three-branch or four-branch or more branch, at this time, the number of the fiber output holes 2202 on the end face of the second sleeve 220 is equal to or greater than the number of branches of the branch optical fiber bundles 222, so that the light output ends 224 of the branch optical fiber bundles 222 are placed in different fiber output holes 2202 from each other to facilitate the connection of the imaging assembly 23.

[0073] The optical probe provided in the embodiment of the utility model can be applied to optical equipment such as a luminance meter, a color analysis instrument, a spectrum analysis device and an optical imaging device.

[0074] Another embodiment of the utility model provides a color analysis instrument, which comprises the optical probe provided in the above-mentioned embodiments.

[0075] The optical probe and the color analyzer with the same provided by the embodiment of the utility model, through adjusting piece install reflector lens in the first sleeve of light inlet unit, through adjusting piece realize the inclination angle of reflector lens, simultaneously set up slide rail in the first sleeve, make reflector lens can realize 360° movement in the first sleeve along the slide rail, through adjusting the position and inclination angle of reflector lens in the first sleeve, make the light line of different angles can enter light processing unit, realize the purpose of analyzing different visual color, get rid of the bondage that color analyzer can only measure the chroma information of vertical direction light beam, save the test cost and the occupation of test space, simple structure, high degree of automation, can greatly improve test efficiency.

[0076] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the implementation mode of the utility model, and for the ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made, here cannot be exhausted all the implementation modes, all the implementation modes of the utility model still belong to the protection range of the utility model.

Claims

1. An optical probe, characterized by, The light inlet unit comprises: The light inlet unit comprises: The first sleeve; The reflective lens is arranged on the inner wall of the first sleeve, The adjusting member is arranged for fixing the reflective lens, and the adjusting member is configured to adjust the angle of the reflective lens relative to the incident light, so that light rays of different angles are reflected by the reflective lens and enter the optical probe.

2. The optical probe of claim 1, wherein, The reflective lens is one or a plurality of reflective lenses uniformly distributed on the inner wall, and each reflective lens reflects light rays of different angles from different regions of the product to be measured.

3. The optical probe of claim 1, wherein, A sliding rail is arranged on the inner wall of the first sleeve along the circumference of the first sleeve; The reflective lens is arranged on the sliding rail by the driving member, and the reflective lens can move along the sliding rail under the driving of the driving member; The adjusting member is arranged between the driving member and the reflective lens to adjust the reflection angle of the reflective lens.

4. The optical probe of claim 3, wherein, The adjusting member comprises a first telescopic arm and a second telescopic arm, one end of each of the first telescopic arm and the second telescopic arm is fixedly connected with the driving member, and the other end of each of the first telescopic arm and the second telescopic arm is hingedly connected with the reflective lens; The first telescopic arm and the second telescopic arm adjust the length of the telescopic arm respectively to adjust the angle of the reflective lens relative to the central axis of the first sleeve.

5. The optical probe of claim 4, wherein, The first telescopic arm and the second telescopic arm are arranged in parallel, and the first telescopic arm extends perpendicularly to the axial direction of the first sleeve.

6. The optical probe of claim 1, wherein, The optical probe further comprises a light processing unit, one end of the first sleeve away from the light processing unit is the light inlet end of the light inlet unit, and the other end close to the light processing unit is the light outlet end of the light inlet unit; The light inlet end of the light inlet unit is fixedly connected with a light-transmitting glass, a central opening is formed in the light-transmitting glass, and a movable baffle is arranged at the central opening, by controlling the opening and closing of the baffle and the angle of the reflective lens, the light rays enter from the central opening or enter after being reflected by the reflective lens.

7. The optical probe of claim 6, wherein, The light processing unit comprises a front optical assembly, a light uniformizing assembly, an imaging assembly and a light detection assembly, and the front optical assembly, the light uniformizing assembly, the imaging assembly and the light detection assembly are arranged in sequence along the light beam propagation direction.

8. The optical probe of claim 7, wherein, The light uniformizing assembly comprises a second sleeve and a fiber bundle arranged in the second sleeve; One end of the second sleeve close to the front optical assembly is provided with a fiber input hole, and the other end is provided with at least one fiber output hole; The fiber bundle comprises a main fiber bundle and at least one branch fiber bundle branched from the main fiber bundle, and the light input end of the main fiber bundle is arranged in the fiber input hole, and the light output end of each branch fiber bundle is arranged in one fiber output hole.

9. The optical probe of claim 8, wherein, The fiber bundle comprises a main fiber bundle and at least three branch fiber bundles branched from the main fiber bundle; The light detection assembly comprises a light detector corresponding to each of the at least three branch fiber bundles; The light processing unit further comprises a filter arranged between the light output end of the branch fiber bundle and the light detection assembly.

10. A color analyzer characterized by comprising: The optical probe of any one of claims 1-9 receives a light beam and converts a light signal into an electrical signal.

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