TWI613422B - Programmable controlled integrating sphere device and method for programmable controlling an integrating sphere device - Google Patents

Abstract

The present invention provides a programmable control integrating sphere device and a method for programmatically controlling an integrating sphere device that can be used as an integrating sphere light source that can be adjusted in an output spectrum. The programmable light-distributed optical switch controls the relative intensity of the input light source of two different spectral components into the integrating sphere to programmatically control the output spectrum and intensity of the integrating sphere.

Description

Programmable controlled integrating sphere device and method for programmable control of integrating sphere device

The present invention relates to an integrating sphere apparatus and a control method thereof, and more particularly to an integrating sphere apparatus and a control method thereof that can programmatically control output spectrum and intensity.

The integrating sphere source is a commonly used source for optical metrology, providing an isotropic uniform source for laboratory optical metrology. However, the output spectral composition of the integrating sphere source is related to the associated bulb (ie, the input source) and is essentially fixed and cannot be changed. In terms of stability, it is advantageous for optical measurement. However, if there is a need to change the spectral composition of the light source, it is usually necessary to replace the type of the light bulb. This usually requires replacement of the entire light source module, resulting in the need to replace the entire integrating sphere light source to achieve the goal of changing the spectral composition of the light source.

Please refer to the first figure. The solid line in the figure is the relative power of the input source halogen lamp commonly used as the integral sphere source as a function of wavelength. The dotted line in the first figure is the visual function of the human eye. The shorter wavelength on the left side is blue light, and the longer wavelength on the right side is red light. The 矽 sensor is a commonly used light sensor and is less sensitive in the blue portion. However, the integrating sphere light source with the halogen lamp as the input light source also has a higher power than the red light in the blue light portion. Much lower. If the overall power is increased to sense the blue light, then the red light portion again exceeds the sensing range of the 矽 sensor. Therefore, in optical measurement, a light source that can adjust the output spectrum and intensity is needed.

In view of the deficiencies in the prior art, the applicant of this case, after careful experimentation and research, and a perseverance spirit, finally conceived the case and was able to overcome the deficiencies of the prior art. The following is a brief description of the case.

The present invention can effectively solve the above problems of the prior art, and provides a programmable control integrating sphere device and a method for programmatically controlling the integrating sphere device. The integrating sphere device can be used as an integrating sphere light source capable of adjusting output spectrum and intensity.

The programmable control integrating sphere device and the method for programmatically controlling the integrating sphere device provided by the invention use the programmable time-dispsing optical switch to control the output light source intensity and spectral composition of the integrating sphere device, which can be under the original integrating sphere structure. Instantly adjust the spectral composition of the integrating sphere output and its relative brightness, and greatly improve the convenience of the integrating sphere source in optical measurement. For the optical measurement that needs to adjust the spectral composition and brightness, this novel and progressive integrating sphere device can quickly adjust to the required brightness and spectral composition, greatly reducing the time required for optical measurement, especially requiring multiple brightness. Measurements can increase the degree of automation of the measurement. The invention can be used in related industries including, but not limited to, lens testing, image sensor testing and camera testing, and has extremely high application value.

One of the ideas of the present invention is to provide a programmable ball device including: an integrating sphere body; two light source modules for providing an integrating sphere body two input light source; and a programmable time distribution optical switch coupled to each light source mold Group, and in the basic unit time, adjust the input light source according to the input percentage required by the person; and the outlet, for outputting the programmed output light source generated by the integrating sphere device with the adjusted two input light source.

Another idea of the present invention is to provide a method for programmatically controlling an integrating sphere device, wherein the integrating sphere device comprises an integrating sphere body, two light source modules for providing two input light sources, and a programmable time for coupling the light source modules. Distributing an optical switch and an outlet for outputting the output light source, the method comprising: distributing the optical switch through the programmable time in a basic unit time, and adjusting the input light source according to the required input percentage in a basic unit time And the adjusted input light source allows the integrating sphere device to instantly output the programmed output light source.

100‧‧‧Integral sphere body

200, 300‧‧‧ light source module

400, 500‧‧‧programmable time distribution optical switch

600‧‧‧programmable controller

700‧‧‧Export

The following diagrams and detailed explanations can be used to make the people who are familiar with the technology more in-depth understanding.

The first graph is a plot of the relative power of a halogen lamp as a function of wavelength.

The second figure is a schematic illustration of one embodiment of the programmable control of the integrating sphere apparatus of the present invention.

The third graph is a plot of the irradiance of a xenon arc lamp as a function of wavelength.

The inventions set forth in the present invention will be fully understood by the following examples, so that those skilled in the art can do so. However, the implementation of the present invention may not be limited by the following embodiments. Other embodiments may be derived from the spirit of the disclosed embodiments, which are within the scope of the present invention. Wai.

Please refer to the second figure, which is a schematic diagram of an embodiment of a programmable control integrating sphere device of the present invention. In the second figure, the upper end of the integrating sphere body 100 is an outlet 700 for instantly outputting the programmed output light source, and the light source modules 200 and 300 provide the integrating sphere body two input light sources. The embodiment shown in the second figure is The most straightforward design is a light source module with a programmable time-distributing optical switch. As can be seen from the second figure, the programmable time distribution optical switch 400 is coupled to the light source module 200 to enter one end of the integrating sphere body 100, and the programmable time distribution optical switch 500 is coupled to the light source module 200 to enter the integrating sphere body. One end of 100. The programmable controller 600 is coupled to the programmable time-distribution optical switches 400 and 500, respectively. As is well known to those of ordinary skill in the art to which the present invention pertains, embodiments of the programmable controller 600 include, but are not limited to, computing devices having computing units, such as computers, microprocessors, microcontrollers, and the like.

One embodiment of a programmable time-distributing optical switch is a programmable time-distributing penetrating beam splitter. When light is incident on the programmable time-distributing penetrating beam splitter, the programmable time-dispensing penetrating beam splitter has at least two states of light penetration and non-penetration, and the programmable time distribution penetrating beam splitter can be subjected to Programmable controller control. In the basic unit time, the amount of light entering the integrating sphere body is adjusted by the time ratio, for example, 300 ms per second (s), that is, 30%. The two input light sources each have their own light penetration time ratio, for example, the input light source from the light source module 200 has a light penetration time ratio of 30%, and the input light source from the light source module 300 has a light penetration time ratio of 40%, etc. . The amount of light entering the integrating sphere body is then instantaneously output from the outlet 700 to the programmed output source and/or output spectrum.

Another embodiment of a programmable time-distributing optical switch is programmable The mirror array switch for time allocation can also be referred to as a reflective beam splitter that can be programmed for time distribution. The programmable time-dispensing mirror array switch includes a mirror array, and each of the mirror arrays reflects light from both directions (ie, has "ON" and "OFF" The two reflection states respectively correspond to two rotation angles, which are clockwise and counterclockwise rotations respectively when the mirror is not rotated, and the ratio of the reflection state to the reflection state time of each mirror can be Programmable controller control. Therefore, the programmable controller can control the proportion of the reflection state and the time ratio of the reflection state of the entire mirror array, and modulate the amount of light entering the integrating sphere body by the input light source, and the amount of light entering the integrating sphere body is immediately outputted from the outlet 700. Output source and / or output spectrum. Like the programmable time-distribution penetrating beam splitter, the programmable time-dispersing mirror array switch allows the two input sources to each have their own light penetration time ratio. Since each mirror in the mirror array can be rotated independently, the flexibility of designing the integrating sphere device is large when using a programmable time-dispensing mirror array switch as a programmable time-distributing optical switch.

Basically, the programmable control integrating sphere device of the present invention has at least one programmable time-distributing optical switch, and those having ordinary knowledge in the technical field of the present invention can design various kinds of only one programmable program after reading the above description. The integrating sphere device of the time-distributing optical switch.

The light source modules 200 and 300 provide different input light sources, for example, corresponding to two different color temperatures. For example, the two light source modules can be halogen lamps and xenon arc lamps respectively, the color temperature corresponding to the halogen lamps is 3000K, and the color temperature corresponding to the xenon arc lamps is 6420K. The third figure is a graph of the irradiance of a xenon arc lamp as a function of wavelength, where the dashed line is the irradiance of the xenon lamp at different wavelengths, while the solid line is the daylight of the different wavelengths. Irradiance, the two are quite close and can be compared.

The programmable control integrating sphere device of the present invention may further include a spectrum detecting module disposed at the outlet 700. The spectrum detecting module is usually disposed inside the integrating sphere body 100, and thus is not shown in the second figure. The spectral detection module is configured to detect the spectrum (output spectrum) emitted from the outlet, and feedback the spectrum to the programmable controller 600, so that the programmable controller 600 adjusts the proportion of the two input light sources into the integrating sphere body to change The composition of the output spectrum.

The programmable control integrating sphere device of the present invention may be equipped with a display for options, or only an input device having a plurality of buttons for selection, all of which are well known to those of ordinary skill in the art to which the present invention pertains. . Of course, the programmable control integrating sphere device of the present invention further includes an integrating sphere supporting mechanism for supporting the integrating sphere body 100 or supporting the light source modules 200, 300, the programmable time distribution optical switches 400, 500, and the outlet 700. The integrating sphere body 100 that is connected or assembled is also well known to those of ordinary skill in the art to which the invention pertains.

Example

A programmable ball device comprising: an integrating sphere body; a second light source module for providing the integrating sphere body two input light sources; and a programmable time distribution optical switch coupled to each of the light sources a module, and adjusting the two input light sources according to a required input percentage in a basic unit time; and an outlet for instantly outputting the program generated by the integrating sphere device by the adjusted two input light sources One of the output sources.

2. The integrating sphere apparatus of embodiment 1, wherein the programmable time-distributing optical switch is a programmable time-distributing penetrating beam splitter.

3. The integrating sphere apparatus of embodiment 1 or 2, further comprising a programmable controller, wherein the programmable time-distributing optical switch is a programmable time-distributed mirror array comprising a mirror array a switch, the programmable controller is configured to control a ratio of a reflective state of the mirror array and a time ratio of a reflective state, and modulate the amount of light of at least one of the two input light sources into the integrating sphere body.

4. The integrating sphere device of any one of embodiments 1 to 3, wherein the two light source modules correspond to two different color temperatures.

5. The integrating sphere device of any one of embodiments 1 to 4, wherein the two light source modules are respectively one of a halogen lamp and an arc lamp, and the light sources of the two light source modules are different. .

6. The integrating sphere device of any one of embodiments 1 to 5, wherein the integrating sphere device further comprises a spectral detection module disposed at the outlet, the spectral detection module for detecting emission from the outlet One of the spectra is fed back to a programmable controller, and the programmable controller adjusts the ratio of the two input sources into the integrating sphere body to change the composition of the spectrum.

A method for programmatically controlling an integrating sphere device, wherein the integrating sphere device comprises an integrating sphere body, two light source modules for providing two input light sources, and a programmable time coupled to each of the light source modules Distributing an optical switch and an outlet for outputting an output light source, the method comprising: distributing the optical switch through the programmable time in a basic unit time, and in accordance with the required input percentage in the basic unit time Individual adjustment The two input light source; and the adjusted two input light source causes the integrating sphere device to immediately output a programmed output light source.

8. The method of embodiment 7, wherein the two light source modules correspond to two different color temperatures.

9. The method of embodiment 7 or 8, wherein the integrating sphere device further comprises a programmable controller, the programmable time-distributing optical switch being a stylized time-dispensing reflection comprising a mirror array The mirror array switch is configured to control a reflection state ratio and a reflection state time ratio of the mirror array, and modulate the amount of light of at least one of the two light source modules into the integrating sphere body.

10. The method of any one of embodiments 7-9, further comprising: detecting a spectrum emitted from the outlet and feeding the spectrum back to a programmable controller to enable the stylization The controller adjusts the ratio of the two input sources into the integrating sphere body to change the composition of the spectrum.

It can be seen from the above that the programmable ball sphere device and the method for programmable control of the integrating sphere device provided by the invention can control the intensity and spectral composition of the output light source of the integrating sphere device by using an optical switch capable of programming time distribution. The spectral composition of the output of the integrating sphere and its relative brightness are adjusted in real time under the integrating sphere structure. Greatly improve the convenience of the integrating sphere light source in optical measurement. For the optical measurement that needs to adjust the spectral composition and brightness, the new integrating sphere device can quickly adjust to the required brightness and spectral composition, greatly reducing the time required for optical measurement, especially when multiple brightness measurements are required. Improve the degree of automation of measurement. The invention can be used in related industries such as lens test, image sensor test and camera test, Has a very high application value.

The invention is a difficult and innovative invention, and has profound industrial value, and is submitted in accordance with the law. The present invention has been modified by those skilled in the art and is intended to be modified as described in the appended claims.

100‧‧‧Integral sphere body

200, 300‧‧‧ light source module

400, 500‧‧‧programmable time distribution optical switch

600‧‧‧programmable controller

700‧‧‧Export

Claims (8)

A programmable ball device comprising: an integrating sphere body; a second light source module for providing the two input light sources of the integrating sphere body; and a programmable time-distributing optical switch coupled to each of the light source modules And adjusting the two input light sources according to the required input percentage in a basic unit time; an outlet for immediately outputting one of the programmed ones generated by the adjusted two input light sources to generate the integrating sphere device An output light source; and a programmable controller coupled to the programmable time-distributing optical switch; wherein the integrating sphere device further includes a spectral detection module disposed at the outlet, the spectral detection mode The group is configured to detect a spectrum emitted from the outlet and feedback the spectrum to the programmable controller, and cause the programmable controller to adjust a ratio of the two input light sources to the integrating sphere body to change the The composition of the spectrum. The integrating sphere device of claim 1, wherein the programmable time-distributing optical switch is a programmable time-distributing penetrating beam splitter. The integrating sphere device of claim 1, wherein the programmable time-distributing optical switch is a programmable time-dispensing mirror array switch including a mirror array, the programmable controller for controlling a ratio of a reflection state of the mirror array and a time ratio of a reflection state, and modulating the amount of light of at least one of the two input light sources into the integrating sphere body. The integrating sphere device of claim 1, wherein the two light source modules correspond to two different color temperatures. The integrating sphere device of claim 1, wherein the two light source modules are respectively one of a halogen lamp and an arc lamp, and the light sources of the two light source modules are different. A method for programmatically controlling an integrating sphere device, wherein the integrating sphere device comprises an integrating sphere body, two light source modules for providing two input light sources, and a programmable time distribution optical coupled to each of the light source modules And a switch for outputting an output light source, the method comprising: distributing the optical switch through the programmable time in a basic unit time, and the percentage of input required by the person in the basic unit time Adjusting the two input light sources; using the adjusted two input light sources to cause the integrating sphere device to immediately output a programmed output light source; and detecting a spectrum emitted from the exit, and feeding the spectrum back to a programmable The controller causes the programmable controller to adjust the ratio of the two input sources into the integrating sphere body to change the composition of the spectrum. The method of claim 6, wherein the two light source modules correspond to two different color temperatures. The method of claim 6, wherein the integrating sphere device further comprises a programmable controller, the programmable time-distributing optical switch being a programmable time-dispensing mirror comprising a mirror array And an array switch, wherein the programmable controller is configured to control a ratio of a reflective state of the mirror array and a time ratio of a reflective state, and modulate the amount of light entering the integrating sphere body by at least one of the two light source modules.