Rotary illuminometer

Abstract

The invention belongs to the technical field of photoelectrons, and discloses a rotary illuminometer, which comprises a probe seat, a glass sheet is arranged at the top of the probe seat, the probe seat is hollow, a light guide device is arranged in the probe seat, and an optical filter and a sensor are sequentially arranged between the light guide device and the bottom of the probe seat. According to the technical scheme, the light energy received by the sensor is close to the same, so that the test stability and reliability are improved.

Description

Technical Field

[0001] The invention belongs to the field of optoelectronic technology, and in particular relates to a rotating illuminometer. Background Art

[0002] With the rapid development of modern optical technology, the design and application of optical systems have entered a new era. The demand for optical technology in aerospace observation, AR / VR consumer electronics, mobile photography, ultra-short-throw projectors, and other fields is increasing. These fields have higher and higher performance requirements for optical systems, and the design of optical components has become more complex. For example, the application of free-form surfaces and metasurfaces provides greater freedom in optical system design while also reducing the number of required optical components.

[0003] In addition, the development of diffractive optical elements (DOEs) has also brought new possibilities to modern optical technology. Diffractive optical elements have unique dispersion characteristics, arbitrary phase modulation capabilities, and advantages such as light weight and small size. They are widely used in optical sensing, optical communications, computational imaging, laser beam shaping, biomedicine, and optical data storage. For example, in the visible, infrared, and ultraviolet bands, diffractive optical elements have been successfully used in a variety of optical systems, including head-mounted displays (HMDs), dual-band infrared optical systems, and ultraviolet warning systems.

[0004] In this technical context, the rotating illuminance meter, as a device for measuring light energy, faces new challenges and opportunities. When measuring light energy, traditional illuminance meters are often limited by the design of optical components, making it difficult to achieve high-precision and high-stability measurements. Summary of the invention

[0005] The purpose of the present invention is to provide a rotating illuminometer to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides a rotating illuminance meter, including a probe seat, a glass sheet is installed on the top of the probe seat, the interior of the probe seat is hollow, a light guide device is arranged inside the probe seat, and an optical filter and a sensor are arranged in sequence between the light guide device and the bottom of the probe seat.

[0007] Optionally, a through hole is formed on the outer wall of the probe seat, and the through hole corresponds to the position of the sensor.

[0008] Optionally, a probe cover is installed on a side of the glass sheet away from the probe seat.

[0009] Optionally, the light guiding device adopts a light guiding cylindrical lens.

[0010] Optionally, the sensor is a photoelectric sensor.

[0011] Optionally, a second through hole is opened in the glass sheet, and the second through hole includes an upper half hole and a lower half hole that are connected to each other, and the aperture of the upper half hole is larger than the aperture of the lower half hole.

[0012] Optionally, a cross-sectional shape of the second through hole is an isosceles trapezoid.

[0013] Optionally, a probe bottom cover is fixedly connected to the bottom of the probe base, and the sensor is mounted on the probe bottom cover.

[0014] Optionally, the probe bottom cover is fixedly connected to the probe base by countersunk screws.

[0015] The technical effects of the present invention are:

[0016] The present invention provides a rotating illuminometer that uses modern optical technology to make the optical sensor's ability to receive light signals in all directions highly consistent, with a difference of no more than 2%. This feature significantly improves the optical sensor's detection accuracy for light signals in different directions; through the special design of the glass sheet and the light-guiding cylindrical lens, this embodiment can make the light energy received by the sensor nearly the same, thereby improving the stability and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall explosion structure of the illuminometer in the embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the countersunk screw hole structure in an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a first through hole structure in an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of a glass sheet in an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the cross-sectional shape of the second through hole in an embodiment of the present invention;

[0024] Explanation of the reference numerals: 1. Probe seat; 2. Probe bottom cover; 3. Probe top cover; 4. Glass sheet; 5. Light guide cylindrical lens; 6. Optical filter; 7. Photoelectric sensor; 8. Countersunk screw hole; 9. First through hole. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element in the middle; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element in the middle at the same time; the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only;

[0028] The words “include,” “including,” “have,” “contain,” etc. used in this article are open-ended terms, meaning including but not limited to.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] like Figure 1-Figure 5As shown, a rotating illuminance meter is provided in this embodiment, including a probe seat 1, a glass sheet 4 is installed on the top of the probe seat 1, the interior of the probe seat 1 is hollow, a light guide cylindrical lens 5 is arranged inside the probe seat 1, and an optical filter 6 and a sensor are arranged in sequence between the light guiding device and the bottom of the probe seat 1.

[0032] It is feasible that the sensor adopts a photoelectric sensor 7, the bottom of the probe seat 1 is fixedly connected with a probe bottom cover 2, and the sensor is installed on the probe bottom cover 2; a through hole begins to be formed on the outer wall of the probe seat 1, and the through hole corresponds to the position of the sensor.

[0033] This embodiment provides a rotating illuminance meter with a unique structural design, which can effectively improve the stability and accuracy of light energy testing. Figures 1 to 5 As shown, the rotating illuminometer mainly includes a probe base 1, a glass sheet 4, a light-guiding cylindrical lens 5, an optical filter 6, a sensor and a probe bottom cover 2.

[0034] Probe seat 1: The probe seat 1 is the core component of the entire device, with a glass sheet 4 installed on the top and a hollow structure inside. A light-guiding cylindrical lens 5 is arranged inside the probe seat 1 to guide light into the device. An optical filter 6 and a sensor are arranged at the bottom of the probe seat 1 in sequence to process and detect light.

[0035] Glass sheet 4: The glass sheet 4 is installed on the top of the probe seat 1, and its end surface is frosted, which can scatter the incident light and evenly distribute the light on the photoelectric sensor 7, thereby improving the stability of the test. In addition, a second through hole is opened in the glass sheet 4, which consists of an upper half hole and a lower half hole. The aperture of the upper half hole is larger than the aperture of the lower half hole, and the cross-sectional shape is an isosceles trapezoid. This unique structural design replaces the traditional cosine sheet structure and can more effectively test the energy distribution of the ring light.

[0036] Light guide cylindrical lens 5: The light guide cylindrical lens 5 is located inside the probe base 1 and is used to guide light to enter the sensor after passing through the glass sheet 4. Its end surface is also frosted to ensure that the light can be evenly distributed.

[0037] Optical filter 6: The optical filter 6 is installed at the bottom of the probe base 1, between the light guide cylindrical lens 5 and the sensor. Its main function is to filter out excess light and only allow light of a specific wavelength to pass through, thereby improving the accuracy of detection.

[0038] Sensor: The sensor adopts a photoelectric sensor 7, which is installed on the probe bottom cover 2. A through hole corresponding to the position of the sensor is opened on the outer wall of the probe base 1 for light to enter. The photoelectric sensor 7 can convert the received light signal into an electrical signal to realize the monitoring of light energy.

[0039] Probe bottom cover 2: The probe bottom cover 2 is fixed to the bottom of the probe base 1 and is used to fix the sensor. The probe bottom cover 2 and the probe base 1 are fixedly connected by countersunk screws. A plurality of first through holes 9 are opened on the bottom cover, and the countersunk screws pass through these through holes to achieve a stable connection.

[0040] The working principle of this embodiment is as follows: the side light first enters the glass sheet 4, and after several reflections and refractions, enters the photoelectric sensor 7 below through the light-guiding cylindrical lens 5. The photoelectric sensor 7 converts the received light signal into an electrical signal, thereby realizing the monitoring of light energy. Through the frosting treatment of the glass sheet 4 and the light-guiding cylindrical lens 5, the light can be evenly distributed on the sensor, ensuring the stability and accuracy of the test results.

[0041] Technical advantages of this embodiment:

[0042] Isotropic optical signal receiving capability: This embodiment uses modern optical technology to make the optical sensor's receiving capability for isotropic optical signals highly consistent, with a difference of no more than 2%. This feature significantly improves the optical sensor's detection accuracy for optical signals in different directions.

[0043] Uniform light energy distribution: Through the special design of the glass sheet 4 and the light-guiding cylindrical lens 5, this embodiment can make the light energy received by the sensor nearly the same, thereby improving the stability and reliability of the test.

[0044] Improving the quality of finished optical lenses: This embodiment can quickly debug product processing equipment and significantly improve the quality of finished products of various optical lenses, and has important practical application value.

[0045] Innovative structural design: This embodiment adopts a unique glass sheet 4 structure to replace the traditional cosine sheet structure, which can more effectively test the energy distribution of the ring light and provide a new solution for the field of optical detection.

[0046] In summary, the rotating illuminance meter provided in this embodiment significantly improves the stability and accuracy of light energy testing through innovative structural design and advanced optical technology, and has broad application prospects.

[0047] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rotating illuminometer, characterized in that: The invention comprises a probe seat (1), a glass sheet (4) being mounted on the top of the probe seat (1), the interior of the probe seat (1) being hollow, a light guide device being arranged inside the probe seat (1), and an optical filter (6) and a sensor being arranged in sequence between the light guide device and the bottom of the probe seat (1).

2. A rotating illuminometer according to claim 1, characterized in that: A first through hole (9) is initially formed on the outer side wall of the probe seat (1), and the first through hole (9) corresponds to the position of the sensor.

3. A rotating illuminometer according to claim 1, characterized in that: A probe upper cover (3) is installed on the side of the glass sheet (4) away from the probe base (1).

4. A rotating illuminometer according to claim 1, characterized in that: The light guiding device adopts a light guiding cylindrical lens (5).

5. A rotating illuminometer according to claim 1, characterized in that: The sensor is a photoelectric sensor (7).

6. A rotating illuminometer according to claim 1, characterized in that: The glass sheet (4) is provided with a second through hole, the second through hole comprising an upper half hole and a lower half hole which are connected to each other, and the aperture of the upper half hole is larger than the aperture of the lower half hole.

7. A rotating illuminometer according to claim 6, characterized in that: The cross-sectional shape of the second through hole is an isosceles trapezoid.

8. A rotating illuminometer according to claim 1, characterized in that: A probe bottom cover (2) is fixedly connected to the bottom of the probe base (1), and the sensor is mounted on the probe bottom cover (2).

9. A rotating illuminometer according to claim 6, characterized in that: The probe bottom cover (2) and the probe base (1) are fixedly connected via countersunk screws.

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