TW201400796A - Detachable peripheral device of spectrometer - Google Patents

Abstract

A detachable peripheral device of a spectrometer is provided. The detachable peripheral device includes a body, a light module, a receiving terminal, a light sensing module, and a control module. The light module includes at least two light sources to output different spectral light. The light outputted from the light module emits to a measure area at a first predetermined angle. The receiving terminal is detachable to couple to a light input terminal of the spectrometer. An included angle of an optical axis of the receiving terminal and a normal line of the measure area is a second predetermined angle. The light sensing module is utilized to sense light outputted from each light source so as to output a corresponding light intensity signal respectively. The control module controls the light sources according to the corresponding light intensity signals.

Description

Spectrometer detachable peripheral device

The present invention relates to a peripheral device for a spectrometer, and more particularly to a peripheral device that enables a spectrometer to easily measure color.

A spectrometer is a scientific instrument that decomposes a complex component of light into a spectral line. The spectroscope can be composed of a Prism, a color filter, or a grating.

Spectrometers can also be used to measure color as a colorimeter. However, the spectrometer should be used as a colorimeter with an appropriate source of light and an appropriate measurement environment. It is quite cumbersome and difficult for the user to set up an appropriate light source and measurement environment. The following is a detailed description.

First, make sure that the light output by the light source is maintained fairly uniform and collimated. In general, some optical components, such as a collimating mirror and a focusing mirror, are added to the light source to make the light output by the light source uniform and collimated. Next, the fixing light source is used to fix the light source, and the angle of the light source is carefully adjusted so that the light output by the light source enters the object to be tested at a predetermined angle.

When the spectrum output by a single light source is not wide enough, multiple sets of light sources need to be added. All light sources need to be adjusted so that the light they output is uniform and collimated, and the object to be tested is incident at the same preset angle. In addition, it is necessary to adjust the light shifts of the respective light sources to overlap on the object to be tested. Then, the spectrometer is fixed through the fixing frame so that the light input end face of the spectrometer faces the normal direction of the object to be tested.

It is worth mentioning that when the spectrometer is used as a colorimeter every time, it is necessary to go through the above cumbersome and difficult process to set up an appropriate light source and measurement environment. In particular, the light source and the measurement environment are slightly different each time, so the results of each measurement are slightly different for the same object to be tested.

In summary, the conventional spectrometer is used as a colorimeter, which is not only cumbersome to use, but also inaccurate in measurement results.

The present invention provides a detachable peripheral device for a spectrometer that allows the spectrometer to be used to measure color.

The present invention provides a detachable peripheral device for a spectrometer that allows the spectrometer to easily measure color.

The invention provides a detachable peripheral device of a spectrometer, which comprises a body, a light source module, a receiving head, a light sensing module and a control module. The ontology defines a measurement area. The light source module is disposed on the body. The light source module includes at least two light sources having different output spectra. The light output by the light source is injected into the measurement area at a first predetermined angle. The first preset angle is related to a color measurement standard. The receiving head is disposed on the body, and an optical input end of the optical coupling spectrometer is detachable. The optical axis of the receiving head and the normal of the measuring area are clamped by a second predetermined angle. The second preset angle is related to the color measurement standard. The light sensing module is disposed on the body, and is configured to sense light output by each light source and output a corresponding light intensity signal accordingly. The control module is electrically connected to the light source module and the light sensing module, and the light intensity of each light source can be controlled according to the light intensity signal.

In an embodiment of the invention, the detachable peripheral device further includes a collimating mirror. The collimating mirror is disposed on the body and located between the measuring area and the receiving head On the optical path. The collimating mirror is, for example, a penetrating collimating mirror, a reflective collimating mirror, or a collecting lens.

In an embodiment of the invention, the detachable peripheral device further includes a heat sink. The heat sink is disposed near the light source module and electrically connected to the control module. The control module can control the heat dissipation device to dissipate heat from the light source module according to the operation state of the light source module. The heat sink is for example a fan with different speed modes. The operating state of the light source module is, for example, an activated state, a closed state, or a multi-level brightness state.

In an embodiment of the invention, the detachable peripheral device further includes a human machine interface. The human-machine interface electrical connection control module can be used for user interaction. The human interface includes touch screens, display screens, indicators, switches, buttons, speakers or speakers...etc.

In an embodiment of the invention, the body includes a bracket structure. The support structure can be used to abut the plane on which the object to be tested is placed, so that the object to be tested falls in the measurement area. In this way, the spectrometer can be used as a contact colorimeter through a detachable peripheral device.

In an embodiment of the invention, the body includes a suspension structure. The suspension structure can be suspended from a fixture such that a test object placed on a plane falls within the measurement area. In this way, the spectrometer can be used as a non-contact colorimeter through a detachable peripheral device.

In an embodiment of the invention, the body includes a matte body. The light-extinguishing body forms a light-tight space, so that the measuring area is located in the light-tight space. In this way, stray light interference can be avoided.

In an embodiment of the invention, the detachable peripheral device further comprises a light Fiber. The optical fiber is detachably optically coupled between the receiving head and the optical input end.

In an embodiment of the invention, the light source module further includes at least one concentrating mirror. The condensing mirror is disposed on an optical axis of the light source and disposed between the light source and the measurement area. The light energy collected by the concentrating mirror is less than 60% of the total output light energy of the light source. The above light source is a light emitting diode. This improves the collimation and uniformity of the light.

In an embodiment of the invention, the detachable peripheral device further includes a communication interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer, so that the lighting timing of the light source module and the measurement program of the spectrometer can cooperate with each other. In this way, the life of the light source module can be prolonged, and the power saving effect can also be achieved.

In an embodiment of the invention, the detachable peripheral device further includes a communication interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer, so that the output light energy of the light source module and the integration time of the spectrometer can cooperate.

In an embodiment of the invention, the detachable peripheral device further includes a communication interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer, so that the control module can output one-color coordinate information according to a spectral information measured by the spectrometer. The above color coordinate information is, for example, CIE XYZ color coordinate information or CIE LAB color coordinate information.

In an embodiment of the invention, the detachable peripheral device further includes a communication interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer, so that the control module can control the light balance of each light source according to a spectral information measured by the spectrometer.

In an embodiment of the invention, the detachable peripheral device further includes a communication interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer. The communication interface module includes a programmable unit. The programmable unit can be updated to allow the detachable peripheral to be applied to another spectrometer.

In an embodiment of the invention, the control module can separately control the light intensity of each light source according to each light intensity signal. In this way, each light source can output a stable intensity of light.

In an embodiment of the invention, the control module can control the light balance of each light source according to each light intensity signal.

In an embodiment of the invention, the light received by the receiving head is scattered light from an object to be tested placed in the measurement area. The detachable peripheral device is a peripheral device for reflective color measurement.

In an embodiment of the invention, the detachable peripheral device further comprises at least one non-uniform light shielding sheet. The non-uniform light shielding sheet is disposed on an optical axis of the light source and disposed between the light source and the measurement area. The light blocking ratio of each region of the non-uniform light shielding film is positively correlated with the output light energy distribution of the light source, thereby suppressing the region where the output light energy is too high, and improving the uniformity of the light.

In an embodiment of the invention, the detachable peripheral device further includes an integrating sphere. The integrating sphere is disposed on the body. The integrating sphere has at least one light receiving end and at least one light output end. The light receiving end of the integrating sphere is optically coupled to the light source module. The light output of the integrating sphere is optically coupled to the receiving head. The measurement zone is defined in the integrating sphere.

In an embodiment of the invention, the detachable peripheral device further includes a groove Interface module. The communication interface module is detachably electrically connected between the control module and an electrical transmission interface of the spectrometer. The light sensing module includes a second spectrometer, and the light intensity signal is the second spectral information generated by the second spectrometer. The second spectral information can be used to perform spectral drift correction or spectral intensity correction on a first spectral information generated by the spectrometer.

In an embodiment of the invention, the detachable peripheral device further includes at least one beam splitter. The beam splitter is disposed between the light source module and the optical path of the measurement area for splitting the light output to the measurement area to the light sensing module.

The detachable peripheral device of the spectrometer includes a body, a light source module, a first receiving head, a second receiving head, a communication interface module and a control module. . The ontology defines a measurement area. The light source module is disposed on the body. The light source module includes at least two light sources having different output spectra, and the light output by the light source is injected into the measurement area at a first predetermined angle. The first receiving head is disposed on the body, and an optical input end of the optical coupling spectrometer is detachable. The optical axis of the first receiving head and the normal of the measuring area are clamped by a second predetermined angle. The first preset angle and the second preset angle are related to the color measurement standard. The second receiving head is detachably optically coupled to the light sensing module. The light sensing module can sense the light output by each light source through the second receiving head and output a corresponding light intensity signal accordingly. The communication interface module is detachably electrically connected to one of the light sensing module and the spectrometer. The control module is electrically connected to the communication interface module.

In an embodiment of the invention, the communication interface module is more detachably electrically connected to the other of the light sensing module and the spectrometer.

In an embodiment of the invention, the control module is based on the light intensity signal The number controls the light intensity of each light source.

Based on the above, the detachable peripheral device of the present invention makes it easier for the spectrometer to measure color.

The above described features and advantages of the invention will be apparent from the following description.

It is quite inconvenient to use a spectrometer as a colorimeter. In contrast, the detachable peripheral device proposed by the embodiment of the present invention has a detachable design and can be easily detached on the spectrometer, so that the spectrometer can be used as a colorimeter or a color difference meter. The relative position of the light source, measurement area and receiving head in the detachable peripheral device has been fixed according to the color measurement standard. After the detachable peripheral device is installed in the spectrometer, the user does not need to adjust the relative position between the components in the detachable device. The detachable peripheral device includes at least two light sources having different output spectra to enhance the spectral output range of the light source module. The detachable peripheral device further includes a light sensing module that senses the light output by each light source. When the light source is attenuated for a long time, the control module can adjust the light intensity of each light source through the signal sensed by the light sensing module, thereby improving the light attenuation problem. The control module can also initialize and adjust each light source according to the signal of the light sensing module, thereby balancing the light intensity of each light source, thereby improving the problem that the light of part of the output spectrum is too strong or too weak.

In view of the above, the detachable peripheral device can also be disassembled and used in turn for different spectrometers. Corresponding detachable peripherals can be prepared for different color measurement standards. When different color measurement standards are to be used to measure color, only the spectrometer is required to replace the detachable peripheral device. In addition, different spectra The sensitivity and resolution of the instrument are slightly different. When the same detachable peripheral device is installed on a spectrometer with better sensitivity and resolution, the accuracy of the measured color can be improved. The following description is made in more detail in conjunction with the drawings, wherein the same or similar elements are denoted by the same reference numerals.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a first embodiment of the present invention. Referring to FIG. 1 , in the embodiment, the spectrometer 10 is illustrated by a simplified architecture, which includes an optical input terminal 101 , a beam splitter 102 , a photosensitive element 103 , a control unit 104 , and an electrical transmission interface 105 . In fact, spectrometer 10 also includes other components, such as slits, Waveguides, Filters, Second Order Filters, Condenser, Collimator (Collimator). ), Beamsplitter and their combinations are not described here. In this embodiment, the optical input 101 can be used to receive light to be spectrally analyzed. The beam splitter 102 can be used to separate light of different wavelengths, such as a reflective grating. The photosensitive element 103 can be used to convert different wavelength optical signals into electrical signals, for example, a Charge Coupled Device (CCD). Control unit 104 can be used to control various electronic components, calculate information, or communicate with other external components. For example, the control unit 104 can generate spectral information according to the electrical signal output by the photosensitive element 103. The spectrometer 10 enumerated in this embodiment is only an alternative embodiment, and those skilled in the art can switch to spectrometers of other architectures according to their needs, such as a spectrometer that uses a filter to split light, and a spectrometer that splits light by using a prism. Or a spectrometer that uses other means to split the light.

In another aspect, the detachable peripheral device 20 can include a body 30, a light source The module 40, the receiving head 50, the light sensing module 60 and the control module 70. The light source module 40 , the receiving head 50 and the light sensing module 60 are disposed on the body 30 . Through the body 30, the relative positions of the light source module 40, the receiving head 50 and the light sensing module 60 are fixed, and the measuring area 80 is also defined. More specifically, the detachable peripheral device 20 is designed to be in contact. The body 30 also includes a bracket structure 100. The stent structure 100 can be used to abut the plane on which the object to be tested 90 is placed, so that the object to be tested 90 falls in the measurement area. In this way, the spectrometer 10 can pass through the detachable peripheral device 20 as a contact colorimeter. In other embodiments, the stent structure 100 can also be used to abut the object to be tested 90 such that a test subject of the object to be tested 90 is in the measurement zone 80. In this way, the color measurement can be performed on the above-mentioned portion to be tested. The receiving head 50 is of a detachable design that optically couples the optical input 101 of the spectrometer 10. The receiving head 50 is optically coupled to the optical input 101 of the spectrometer 10, for example, via an optical fiber. The control module 70 is electrically connected to the light source module 40 and the light sensing module 60.

In the present embodiment, the relative positions of the light sources 41, 42, the receiving head 50 and the measurement area 80 are configured in accordance with color measurement standards. In this embodiment, the standard configuration is measured in a 45 degree x color. More specifically, the light output from the light sources 41, 42 is incident on the measurement area 80 at 45 degrees. The receiving head 50 receives light from the measurement area 80. More specifically, the optical axis of the receiving head 50 is normal to the measuring area 80, that is, the angle between the optical axis of the receiving head 50 and the normal of the measuring area 80 is 0 degrees. It should be noted that the configuration of the 45 degree x color measurement standard is only an alternative embodiment. In other embodiments, different color measurement standards, such as 45 degrees a, 0 degrees or 8 degrees, may be used. . Color measurement standards. In this embodiment, although the light sources 41, 42 and the receiving head 50 are The configuration is on the same plane, but it is only an alternative embodiment. In other embodiments, the light sources 41, 42 and the receiving head 50 can also be disposed on different planes. In the present embodiment, the detachable peripheral device 20 further includes a collimating mirror 110. The collimating mirror 110 is disposed on the body 30 and located on the optical path between the measuring area 80 and the receiving head 50 to improve the collimation of the light received by the receiving head 50. It should be noted that in other embodiments, if the light received by the receiving head 50 has reached a certain degree of collimation, the collimating mirror 110 may be omitted to simplify the optical system architecture. In the present embodiment, the collimating mirror 110 is exemplified by a transmissive collimating mirror. However, in other embodiments, the collimating mirror may be other optical components that can collimate light, such as a reflective quasi-alignment. Straight mirror or condenser lens.

The body 30 may be composed of a material that is not easily deformed, such as an aluminum alloy, and in other embodiments may be composed of other materials that are not easily deformed, such as plastic, metal materials, or composite materials. In the present embodiment, the body 30 is described in a stent-like configuration. However, in other embodiments, the body may also be of a similar housing type. In addition, in the embodiment, the body 30 may further include a matting body. In the present embodiment, the matte is, for example, a black cloth covering the outside of the body 30. The mater can form a light confined space such that the measurement area 80 is located in the light confined space. In this way, stray light interference can be avoided.

In the above, the light source module 40 includes at least two light sources having different output spectra. In the embodiment, two light sources (41, 42) are taken as an example, and in other embodiments, more than three light sources may be used. Or package multiple light sources in the same fixture. The light source 41 is, for example, a light emitting diode (LED), and the light source 42 is, for example, white light. LEDs, in other embodiments, may also employ different types of light sources such as Halogen Lamps, Neon lamps, and the like. Since the light source module 40 has a plurality of light sources having different output spectra, the light source module 40 can output light having a wide spectral range. For the color measurement, the wider the output spectral range of the light source module 40, the more the measurement result reflects the color information of the object to be tested. However, it is quite difficult for a single light source to output light with a wide spectral range and uniform intensity distribution. In this embodiment, the light source module 40 can have a wider output spectral range by combining the light sources complementary to the output spectrum. In addition, when the light intensity of the light source of the different output spectrum is unbalanced, the number of light sources corresponding to the weak light intensity may be increased in the light source module, so that the output spectrum range of the light source module 40 is not only wide but the light intensity is uniform. For example, in an embodiment, if the energy of the red LED is about twice that of the blue LED, a red LED and a blue LED with a ratio of the light source in a ratio of 1:2 can be integrated in the light source module.

The light sensing module 60 includes a plurality of photo sensors. In the present embodiment, the photo sensors 61 and 62 are taken as an example for description. In other embodiments, more than three light sensors can also be employed. The light sensor 61 is disposed on the light output path of the light source 41, for example, disposed near the socket of the light source 41 for detecting the light intensity of the light source 41. The light sensor 62 is disposed on the light output path of the light source 42 , for example, disposed near the socket for detecting the light intensity of the light source 42 . It should be noted that, in this embodiment, the light sensor 61 does not substantially sense the light source 42 , and the light sensor 62 does not substantially sense the light source 41 . In other words, the signal generated by the photo sensor 61 substantially reflects the intensity of the light source 41, and the signal generated by the photo sensor 62 substantially reflects the intensity of the light source 42. degree.

The control module 70 can adjust the light intensity of the light source module 40 according to the signal output by the light sensing module 60. In the present embodiment, the control module 70 modulates the light intensity of each light source through Pulse Width Modulation (PWM), but it is only an alternative embodiment. In other embodiments, the control module can also adjust the light intensity of each light source by other means, for example, by adjusting the voltage or current to control the light intensity.

It should be noted that when the light source is used for a long time, the output light intensity of the light source will be attenuated. This attenuation situation is likely to cause distortion in color measurement. However, in this embodiment, the control module 70 can control the light intensities of the light sources 41 and 42 according to the light intensity signals sensed by the light sensors 61 and 62, respectively. The control module 70 can detect whether the light source 41 is attenuated due to long-term use by monitoring the signal output by the light sensor 61. When the light source 41 is attenuated, the control module 70 can adjust the light intensity of the light source 41 according to the degree of attenuation of the light source 41, so that the light source 41 can continuously output light of stable intensity. Similarly, the light source 42 can be analogized. In this way, the problem of color measurement distortion caused by long-term use attenuation of each light source can be improved.

In addition, the control module 70 can also control the light balance of each light source according to the light intensity signals of the respective photo sensors. That is, the control module 70 can initialize the intensity of each light source of the light source module 40 to balance the light intensity of each light source.

2A is a schematic view showing the spectrum of a light source module before performing light balance adjustment according to the first embodiment of the present invention. 2B is a light of a light source module after performing light balance adjustment according to a first embodiment of the present invention. Schematic diagram. Referring to FIG. 1, FIG. 2A and FIG. 2B together, in the present embodiment, the output spectrum of the light source 41 ranges from about 370 nm to 430 nm, and the output spectrum of the light source 41 ranges from about 420 to 800 nm. It is assumed that the control module 40 initially drives the light sources 41 and 42 with 0.4 units of light intensity control signals, and the light intensity signals sensed by the light sensors 61 and 62 are, for example, light intensity units of 0.5 and 1, respectively. At this time, the light intensity ratio of the representative light sources 41 and 42 is about 0.5:1 as shown in Fig. 2A. It should be noted that, in this embodiment, the light sensing module 60 cannot obtain the spectral information as shown in FIG. 2A and FIG. 2B, and FIG. 2A and FIG. 2B are only schematic diagrams for convenience of description.

Then, the control module 40 can control the light intensity of the light sources 41 and 42 according to the light intensity signals of the light sensors 61 and 62. For example, the light sources 41 and 42 are respectively driven by the light intensity control signals of 0.8 and 0.4 units, respectively. The light intensity signals sensed by the sensors 61 and 62 are close to equilibrium, for example, the light intensity units of 1 and 1 are sensed, respectively. At this time, the light intensity ratio of the representative light sources 41 and 42 is about 1:1 as shown in Fig. 2B. In this way, not only can the intensity of each light source be initialized more conveniently, but also the light intensity of each light source can be balanced. It should be noted that, for color measurement, in the case where the light intensity of each light source is unbalanced, in the spectral information received by the spectrometer 10, the spectral range corresponding to the excessive light intensity is likely to be the largest. The value does not correctly reflect the true measurement value, or the case of the data overflow (Overflow); the spectral range corresponding to the light intensity is too weak to easily carry too much noise and cannot correctly reflect the true measurement value. However, the above problem can be improved by the light intensity initial adjustment of this embodiment.

From the user's point of view, when the user wants to use the spectrometer 10 When used for a colorimeter or a color difference meter, the receiving head 50 of the detachable peripheral device 20 is first optically coupled to the optical input terminal 101 through the optical fiber, thus completing the erection of the measurement environment. Then, a standard color patch can be placed in the measurement area 80 for the control module 70 to perform initial light source setting, such as initial setting of each light source intensity correction and light intensity balance correction.

Next, the object to be tested 90 can be placed in the measurement area 80 for measurement. More specifically, the light of the light source module 40 will illuminate the object to be tested 90 at an incident angle of 45 degrees, and the receiving head 50 will receive the object to be measured 90 against the normal of the measuring area 80. In other words, the light scattered by the object to be tested 90 passes through the receiving head 50 and enters the light input end 101 of the spectrometer 10. Then, the light entering the optical input terminal 101 is split into a plurality of spectral components by the optical splitter 102, and the optical signal is converted into an electrical signal by the photosensitive element 103. The control unit 104 can generate spectral information according to the electrical signal, and the spectral information can reflect the color information of the object to be tested 90. Spectral information can be transmitted to an external device through the electrical transmission interface 105.

A possible form has been delineated in the above embodiments for the spectrometer and the detachable peripheral device, but those of ordinary skill in the art should know that the design of the spectrometer and the detachable peripheral device are different for each manufacturer. The application of the invention is not limited to this possible type. In other words, as long as the detachable peripheral device has a plurality of light sources of different output spectra and corresponding light sensing designs, and the detachable peripheral device enables the spectrometer to be used as a color difference meter or a colorimeter, it is already in accordance with the present invention. The spirit of the place. The following examples are presented to enable those of ordinary skill in the art to understand the invention and practice the invention.

3 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a second embodiment of the present invention. Referring to FIG. 1 and FIG. 3 together, the detachable peripheral device 21 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The difference is that, in the detachable peripheral device 21, the light source module 40 further includes at least one condensing mirror, and the condensing mirrors 121 and 122 are taken as an example for description. The condensing mirror 121 is disposed on the optical axis of the light source 41 and disposed between the light source 41 and the measurement area 80. It should be noted that the light collected by the concentrating mirror 121 is less than 60% of the total output light energy of the light source 41. More specifically, it is assumed that the condensing mirror 121 is located on the first plane, and the first plane and the optical axis of the light source 41 are orthogonal to the first origin. The main energy of the light source 41 is distributed near the optical axis, and the light energy distribution irradiated on the first plane is symmetrically distributed outwardly from the first origin. The concentrating mirror 121 is disposed at the first origin and is only used to collect less than 60% of the total output light energy of the light source 41. The intention is that the light away from the optical axis, the more difficult it is to control its optical properties. The condensing mirror 121 is only used to process light in the vicinity of the optical axis, and not only can enhance the collimation of the light, but also maintain a considerable degree of uniformity of the light passing through the condensing mirror 121. Similarly, an embodiment of the concentrating mirror 122 can be analogized. In this way, the light received by the measurement area 80 can be made to have a certain degree of uniformity and collimation, and no error occurs when the color measurement is performed.

4 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a third embodiment of the present invention. Referring to Figures 1 and 4 in combination, the detachable peripheral device 22 of the present embodiment is similar to the detachable peripheral device 20 of Figure 1 . The difference is that the detachable peripheral device 20 is a contact type, and the detachable peripheral device 22 is a non-contact type. In this embodiment, the body 30 includes a suspension Hanging structure 130. The suspension structure 130 can be suspended from a fixture. For example, the suspension structure 130 is suspended and fixed to a machine gantry, so that the object to be tested 90 located under the machine gantry and placed on the plane can fall into the measurement area 80. As such, the spectrometer 10 can pass through the detachable peripheral device 22 as a non-contact colorimeter. The advantage of this approach is that the body 30 can perform color measurement without touching the plane and/or the object to be tested. When a large amount of color measurement is required, the time for replacing the next object to be tested can be effectively shortened. In the present embodiment, although the two suspension structures 130 are taken as an example, they are merely an alternative embodiment. In other embodiments, the number, shape, and arrangement of the suspension structures may also be changed according to the application situation.

Figure 5 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a fourth embodiment of the present invention. Referring to FIG. 1 and FIG. 5 together, the detachable peripheral device 23 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The difference is that the detachable peripheral device 23 further includes a heat sink 140. The heat sink 140 is disposed in the vicinity of the light source module 40 and electrically connected to the control module 70. When the light source module 40 operates, a large amount of heat is often generated. When the light is overheated, the light output by the light source module 40 is not stable, which may affect the result of the color measurement. In this embodiment, the heat sink 140 can be used to dissipate heat from the light source module 40. More specifically, the control module 70 can control the heat sink 140 to dissipate heat from the light source module 40 according to the operating state of the light source module 40. In the present embodiment, the heat sink 140 is, for example, a fan having different speed modes. The operating state of the light source module 40 is, for example, an activated state, a closed state, or a multi-level brightness state. When the light source module 40 is in the off state, the control module 70 can control the heat sink 140 to stop operating, thereby achieving Power saving function. When the light source module 40 is in a general brightness state, the control module 70 can control the heat sink 140 to switch to the normal speed. When the light source module 40 is in a high-brightness state, the heat energy generated by the light source module 40 is also high, and the control module 70 can control the heat sink 140 to switch to an ultra-high speed to accelerate heat dissipation. Of course, the corresponding state of the heat sink 140 and the light source module 40 is only an alternative embodiment, and those skilled in the art can adjust according to their needs. In other embodiments, the heat dissipating device may be a device that uses other conventional methods for dissipating heat, for example, a thermoelectric cooling device, such as a lamp holder that can be mounted on the light source module. Achieve good heat dissipation.

Figure 6 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a fifth embodiment of the present invention. Referring to Figures 1 and 6, the detachable peripheral device 24 of the present embodiment is similar to the detachable peripheral device 20 of Figure 1 . The difference is that the detachable peripheral device 24 further includes a human machine interface 150. The human interface 150 is electrically connected to the control module 70 for use by the user for interaction. In this embodiment, the human-machine interface 150 is described by taking an indicator light and a switch as an example. The switch can be used to control the light source module 40 to be turned off, and the indicator light can be used to indicate whether the light source module 40 is in operation. It should be noted that although the human-machine interface 150 is described by taking a switch and an indicator light as an example, it is only an alternative embodiment. In other embodiments, the human interface may also be other devices, such as a touch screen, a display screen, a button, a speaker or a speaker, and the like. The human interface can also display or control other information and functions depending on the application. For example, when the human-machine interface is electrically connected to the control module and the spectrometer, the human-machine interface can be used not only to display and control the detachable week. The information and functions of the side device can also be used to display and control the information and functions of the spectrometer, such as the spectral information and the integration time of the spectrometer.

Figure 7 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a sixth embodiment of the present invention. Referring to FIGS. 1 and 7, the detachable peripheral device 25 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The difference is that the detachable peripheral device 25 further includes a communication interface module 160. The communication interface module 160 is detachably electrically connected between the control module 70 and the electrical transmission interface 105 of the spectrometer 10. For example, the transmission line can be easily removed. The communication interface module 160 can be electrically connected between the control module 70 and the electrical transmission interface 105 of the spectrometer 10 through a transmission line. In this way, the spectrometer 10 and the control module 70 can communicate with each other.

In the above embodiment, the communication interface module 160 includes a programmable unit. The programmable unit can be updated to enable the detachable peripheral device 25 to be adapted to another spectrometer. More specifically, different spectrometers may use different communication protocols. In this embodiment, a plurality of sets of programs designed for different spectrometers can be installed in the programmable unit. When the detachable peripheral device 25 is connected to the spectrometer through the transmission line, the communication interface module communicates with the spectrometer by selecting an appropriate program from the programmable unit for the connected spectrometer. In this way, the detachable peripheral device 25 can be applied to different brands or different types of spectrometers.

It should be noted that when the detachable peripheral device 25 is electrically connected to the spectrometer 10, a more diverse function can be derived between the detachable peripheral device 25 and the spectrometer 10. The following examples are given for illustration. For example, when After the detachable peripheral device 25 and the spectrometer 10 can communicate with each other, the lighting timing of the light source module 40 and the measuring program of the spectrometer 10 can cooperate with each other. More specifically, when the spectrometer 10 is not to be measured, the light source module 40 can enter the off mode. In this way, the life of the light source module can be prolonged, and the power saving effect can also be achieved. It should be noted that, although the type of light source is different, the light source may need to operate for a period of time before the output light reaches a steady state. In view of this, the light source module 40 can also be illuminated in advance before the spectrometer 10 is measured. When the spectrometer 10 performs measurement, the light output by the light source module 40 is stable light, which can reduce the interference caused by the instability of the light source.

For another example, when the detachable peripheral device 25 and the spectrometer 10 can communicate with each other, the output light energy of the light source module 40 and the integration time of the spectrometer 10 can cooperate with each other. If the integration time is too short, the signal strength is small and it is easy to be affected by noise. If the integration time is too long, it will easily cause data overflow. When the detachable peripheral device 25 and the spectrometer 10 can communicate with each other, the control module 70 can set an appropriate integration time for the spectrometer 10 according to the spectral information generated by the spectrometer 10. It is assumed that the maximum value measured by the energy of the spectrometer 10 is 65535 intens. First, the control module 70 can control the integration time of the spectrometer 10, for example, the initial setting is 0.1 second. During the measurement process, the spectrometer 10 accumulates the received light intensity in 0.1 second and generates a spectral information. For example, the maximum intensity of each band in the spectral information is 10000 intensity. Next, the control module 70 can calculate a suitable integration time of the spectrometer 10 according to the above spectral information, for example, 0.6 seconds. Setting the appropriate integration time, the spectral information generated by the spectrometer 10 will not only cause data overflow but also have too small signal.

For another example, when the detachable peripheral device 25 and the spectrometer 10 can communicate with each other, the control module 70 can output color coordinate information according to the spectral information measured by the spectrometer 10. In general, spectrometer 10 does not necessarily have the ability to calculate color coordinate information, but only spectral information. In view of this, the control module 70 can capture the spectral information measured by the spectrometer 10, and calculate corresponding color coordinate information, for example, can convert the spectral information into CIE XYZ color coordinate information. In other embodiments, those skilled in the art can also convert spectral information into other color coordinate information, such as CIE LAB color coordinate information, according to their needs.

For example, when the detachable peripheral device 25 and the spectrometer 10 can communicate with each other, the control module 70 can control the light balance of each light source according to the spectral information measured by the spectrometer 10. It should be noted that, in the first embodiment, the control module 70 can control the light balance of each light source according to the light intensity signal sensed by the light sensing module 60. However, the light sensing module 60 in the first embodiment is composed of the light sensors 61 and 62. That is to say, the light sensing module 60 in the first embodiment cannot generate spectral information. In this embodiment, the spectral information measured by the spectrometer 10 contains more information, and the control module 70 can better control the light balance of each light source according to the spectral information. For example, the photo sensor 61 is a light that senses the receiving light source 41. The light sensor 62 is a light that senses the receiving light source 42. In contrast, the spectral information measured by the spectrometer 10 is the light that is scattered by the light sources 41 and 42 after being irradiated to the receiving head 50, that is, the spectral information further contains the attenuation information caused by the light being scattered. The control module 70 can of course better control the light balance of the respective light sources based on the spectral information.

Figure 8 is a spectroscopy and detachable embodiment in accordance with a seventh embodiment of the present invention. Schematic diagram of unloading peripheral devices. Referring to FIGS. 1 and 8, the detachable peripheral device 26 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The difference is that the detachable peripheral device 26 further includes at least one non-uniform light shielding sheet. In this embodiment, the non-uniform light shielding sheets 171 and 172 are taken as an example for description. The non-uniform light shielding sheet 171 is disposed on the optical axis of the light source 41 and disposed between the light source 41 and the measurement area 80. In general, the light spot output by the LED light source will have a phenomenon similar to a donut, that is, the spot that is irradiated on the plane will have a weak circle and a weak unevenness. In view of the fact that the non-uniform light-shielding sheet 171 can design the light-shielding rate of each area for the light spot of the light source 41, the higher the spot energy area, the higher the light-shielding rate corresponding to the non-uniform light-shielding sheet 171; The lower the light-shielding ratio of the non-uniform light-shielding sheet 171 is designed. In other words, the light blocking ratio of each region of the non-uniform light-shielding sheet 171 is positively correlated with the output light energy distribution of the light source 41, thereby suppressing the region where the output light energy is too high, and improving the uniformity of the light. Similarly, the embodiment of the non-uniform light shielding sheet 172 can be analogized, and details are not described herein again.

Figure 9 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with an eighth embodiment of the present invention. Referring to Figures 1 and 9, the detachable peripheral device 27 of the present embodiment is similar to the detachable peripheral device 20 of Figure 1 . The difference is that the detachable peripheral device 27 further includes an integrating sphere 180. The integrating sphere 180 is disposed on the body 31. The integrating sphere 180 has at least one light receiving end and at least one light output end. The light receiving end of the integrating sphere 180 is optically coupled to the light source module 40. The light output end of the integrating sphere 180 is optically coupled to the receiving head 50. The measurement zone 80 is defined in the integrating sphere 180. In this embodiment, the color measurement standard used is 8 degrees. More specifically It is said that the light source module 40 inputs light into the integrating sphere 180 in a horizontal direction. The receiving head 50 receives light at 8 degrees against the area to be tested 80, that is, the optical axis of the receiving head 50 is clamped to the normal of the area to be tested 80 by 8 degrees. The advantage of this measurement method is that the irregular shape of the object to be tested 90 can be measured.

Figure 10 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a ninth embodiment of the present invention. Referring to FIG. 1 and FIG. 10 together, the detachable peripheral device 28 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The difference is that the detachable peripheral device 28 further includes at least one beam splitter. This embodiment is described by taking the beamsplitters 191 and 192 as an example. The beam splitter 191 is disposed between the light source 41 and the optical path of the measurement area 80 for splitting the light output to the measurement area 80 to the photo sensor 61. It is worth mentioning that the light received by the photo sensor 61 and the light irradiated on the object to be tested 90 are substantially the same. Similarly, the beam splitter 192 can be analogized. Then, the control module 70 can more accurately control the light source module 40 according to the light intensity signal sensed by the light sensing module 60. It should be noted that the detailed implementation of the beam splitter can also be referred to the disclosure of US Pat. No. 4,756,619. The disclosure of U.S. Patent No. 4,756,619 is incorporated herein by reference.

In the first embodiment, the light source module 40 is described by taking two light sources as an example, and the light sensing module 60 is described by taking two light sensors as an example, but it is only an alternative embodiment. The field technician can also implement the light sensing module with different light sensing components according to the requirements, or implement the light source module through different types of light sources. For example, Figure 11 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a tenth embodiment of the present invention. Referring to FIG. 1 and FIG. 11 together, the detachable peripheral device 29 of the present embodiment is the same as that of FIG. The detachable peripheral device 20 is similar. The difference is that the light sensing module 60 of the detachable peripheral device 29 includes a second spectrometer, and the light source module 40 packages a plurality of light sources, such as a plurality of LED dies of different colors. In this embodiment, the function of the light sensing module 60 can be implemented through the second spectrometer. In other words, the light sensing module can sense the spectral information of all the output light of the light source module 40 through the beam splitter 191. The control module 70 can control the light source module 40 according to the spectral information.

It should be noted that if the detachable peripheral device 29 and the communication interface module 160 disclosed in FIG. 7 are electrically connected to the spectrometer 10, other new functions may be derived. For example, in general, a light source is susceptible to temperature and an output wavelength shift occurs. When the light sensing module 60 can generate spectral information, the control module 70 can perform spectral drift correction on the spectral information generated by the spectrometer 10 according to the spectral information generated by the light sensing module 60. Moreover, the control module 70 can also perform spectral intensity correction on the spectral information generated by the spectrometer 10 according to the spectral information generated by the light sensing module 60.

Figure 12 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with an eleventh embodiment of the present invention. Referring to FIG. 1 and FIG. 12 together, the detachable peripheral device 201 of the present embodiment is similar to the detachable peripheral device 20 of FIG. The detachable peripheral device 201 includes a body 30, a light source module 40, a first receiving head 50, a second receiving head 51, a communication interface module 160, and a control module 70. The second receiving head 51 can detach the optically coupled light sensing module 60, such as through an optical fiber. The light sensing module 60 can sense the light output by the light source module 40 through the second receiving head 51 and output a corresponding light intensity signal accordingly. Communication interface module 160 detachable electrical connection telex The interface 105 and the light sensing module 60 are provided. The control module 70 is electrically connected to the communication interface module 160 to control the light intensity of each light source according to the light intensity signal. Of course, with the different information integrated by the communication interface module, the control module can also achieve other derivative functions, which will not be repeated here.

Those skilled in the art can also combine in accordance with the various embodiments disclosed above.

In summary, the detachable peripheral device of the present invention allows the spectrometer to easily measure color.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and those skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧ Spectrometer

20~29, 201‧‧‧ detachable peripheral devices

30, 31‧‧‧ ontology

40‧‧‧Light source module

41, 42‧‧‧ Light source

50‧‧‧ receiving head

60‧‧‧Light sensing module

61, 62‧‧‧Light sensor

70‧‧‧Control Module

80‧‧‧Measurement area

90‧‧‧Test object

100‧‧‧ bracket structure

101‧‧‧Light input

102‧‧ ‧ splitter

103‧‧‧Photosensitive elements

104‧‧‧Control unit

105‧‧‧Electric transmission interface

110‧‧‧ collimation mirror

121, 122‧‧‧ concentrating mirror

130‧‧‧suspension structure

140‧‧‧heating device

150‧‧‧Human Machine Interface

160‧‧‧Communication interface module

171, 172‧‧‧ non-uniform light shielding film

180‧‧·score ball

191, 192‧‧ ‧ beamsplitter

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a first embodiment of the present invention.

2A is a schematic view showing the spectrum of a light source module before performing light balance adjustment according to the first embodiment of the present invention.

2B is a schematic diagram of the spectrum of a light source module after performing light balance adjustment according to the first embodiment of the present invention.

3 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a second embodiment of the present invention.

4 is a schematic illustration of a spectrometer and a detachable peripheral device in accordance with a third embodiment of the present invention.

Figure 5 is a spectrometer and detachable in accordance with a fourth embodiment of the present invention. Schematic diagram of unloading peripheral devices.

Figure 6 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a fifth embodiment of the present invention.

Figure 7 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a sixth embodiment of the present invention.

Figure 8 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a seventh embodiment of the present invention.

Figure 9 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with an eighth embodiment of the present invention.

Figure 10 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a ninth embodiment of the present invention.

Figure 11 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with a tenth embodiment of the present invention.

Figure 12 is a schematic illustration of a spectrometer and detachable peripheral device in accordance with an eleventh embodiment of the present invention.

10‧‧‧ Spectrometer

20‧‧‧Removable peripherals

30‧‧‧Ontology

40‧‧‧Light source module

41, 42‧‧‧ Light source

50‧‧‧ receiving head

60‧‧‧Light sensing module

61, 62‧‧‧Light sensor

70‧‧‧Control Module

80‧‧‧Measurement area

90‧‧‧Test object

100‧‧‧ bracket structure

101‧‧‧Light input

102‧‧ ‧ splitter

103‧‧‧Photosensitive element

104‧‧‧Control unit

105‧‧‧Electric transmission interface

110‧‧‧ collimation mirror

Claims (24)

The detachable peripheral device of the spectrometer comprises: a body defining a measuring area; a light source module disposed on the body, the light source module comprising at least two light sources having different output spectra, and the light output by the light source Inserting into the measurement area at a first predetermined angle, the first preset angle is related to a color measurement standard; a receiving head is disposed on the body, and detachably optically coupling an optical input end of the spectrometer The optical axis of the receiving head and the normal of the measuring area are clamped by a second preset angle, and the second preset angle is related to the color measurement standard; a light sensing module is disposed on the body, Sensing the light outputted by each of the light sources and outputting a corresponding light intensity signal; and a control module electrically connecting the light source module and the light sensing module, and controlling each of the light intensity signals according to the light intensity signal The light intensity of the light source. The detachable peripheral device of claim 1, further comprising: a collimating mirror disposed on the body and located on an optical path between the measuring area and the receiving head. The detachable peripheral device of claim 1, further comprising: a heat dissipating device disposed adjacent to the light source module and electrically connected to the control module, wherein the control module is configured according to the light source module The operating state controls the heat sink to dissipate heat from the light source module. The detachable peripheral device as described in claim 1 of the patent application, The utility model comprises: a human-machine interface electrically connected to the control module for the user to interact. The detachable peripheral device of claim 1, wherein the body comprises: a bracket structure for abutting a plane on which the object to be tested is placed, so that the object to be tested falls in the measuring area. The detachable peripheral device of claim 1, wherein the body comprises: a suspension structure for hanging on a fixing device, so that a test object placed on a plane falls in the measuring area. The detachable peripheral device of claim 1, wherein the body comprises: a matte body, forming a light confined space, wherein the measuring area is located in the light confined space. The detachable peripheral device of claim 1, further comprising an optical fiber detachably optically coupled between the receiving head and the optical input end. The detachable peripheral device of claim 1, wherein the light source module further comprises: at least one condensing mirror disposed on an optical axis of the light source and disposed between the light source and the measuring area The light energy collected by the condensing mirror is less than 60% of the total output light energy of the light source, wherein the light source is a light emitting diode. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, so that the light source module The lighting timing and the spectrometer's measurement procedure can be matched. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, so that the light source module The output light energy can be matched with the integration time of the spectrometer. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, so that the control module The color coordinate information can be output according to a spectral information measured by the spectrometer. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, so that the control module The light balance of each of the light sources can be controlled according to a spectral information measured by the spectrometer. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, including a programmable Unit, this can The stylized unit can be updated to make the detachable peripheral device adaptable to another spectrometer. The detachable peripheral device of claim 1, wherein the control module controls the light intensity of each of the light sources according to the respective light intensity signals. The detachable peripheral device of claim 1, wherein the control module controls the light balance of each of the light sources according to the light intensity signals. The detachable peripheral device of claim 1, wherein the light received by the receiving head is scattered light from an object to be tested placed in the measuring area, and the detachable peripheral device is a reflective color amount. Peripheral device measured. The detachable peripheral device of claim 1, further comprising: at least one non-uniform light shielding film disposed on an optical axis of the light source and disposed between the light source and the measuring area, the non-uniform The shading rate of each area of the light shielding sheet is positively correlated with the output light energy distribution of the light source, thereby suppressing the area where the output light energy is too high, and improving the uniformity of the light. The detachable peripheral device of claim 1, further comprising: an integrating sphere disposed on the body, having at least one light receiving end and at least one light output end, the light receiving end of the integrating sphere being optically coupled a light source module, the light output end of the integrating sphere is optically coupled to the receiving head, wherein the measuring area is defined in the integrating sphere. The detachable peripheral device of claim 1, further comprising: a communication interface module, detachably electrically connected between an electrical transmission interface of the spectrometer and the control module, wherein the light sensing The module includes a second spectrometer, wherein the light intensity signal is a second spectral information generated by the second spectrometer, and the second spectral information can be used to perform spectral drift correction on a first spectral information generated by the spectrometer or Spectral intensity correction. The detachable peripheral device of claim 1, further comprising: at least one beam splitter disposed between the light source module and the optical path of the measuring area for outputting to the measuring area The light is split to the light sensing module. The detachable peripheral device of the spectrometer comprises: a body defining a measuring area; a light source module disposed on the body, the light source module comprising at least two light sources having different output spectra, and the light output by the light source The first predetermined angle is related to a color measurement standard; a first receiving head is disposed on the body, and detachably optically couples the light of the spectrometer The input end, the optical axis of the first receiving head and the normal of the measuring area are clamped by a second preset angle, the second preset angle is related to the color measurement standard; a second receiving head, detachable optical Coupling a light sensing module, wherein the light sensing module can sense the output of each light source through the second receiving head And outputting a corresponding light intensity signal; a communication interface module is detachably electrically connected to the light sensing module and the spectrometer; and a control module electrically connected to the communication interface module . The detachable peripheral device of claim 22, wherein the communication interface module is more detachably electrically connected to the light sensing module and the other of the spectrometer. The detachable peripheral device of claim 22, wherein the control module controls the light intensity of each of the light sources according to the light intensity signal.