阅读说明：本技术 一种高动态范围光源模拟系统 (High dynamic range light source simulation system ) 是由 张世伟 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种高动态范围光源模拟系统,涉及光环境模拟领域。针对现有消费类电子产品显示屏和光环境传感器模块在研发和生成过程中需要进行相关的测试,包括：不同照明环境下显示屏显示效果、光环境传感器测量精度的测试和评估。而目前市场上光环境模拟观察箱,色温单一、照度范围较小。无法实现模拟超高照度(如室外10万lx)和宽色温范围(如2700-10000K)可调。为此我们设计一种高动态范围光源模拟系统。该系统结构紧凑、均匀度高,可操作性强,是一套方便实用便于推广的高动态范围光源模拟系统。(The invention discloses a high dynamic range light source simulation system, and relates to the field of light environment simulation. The method aims at the problem that related tests are required to be carried out in the research, development and generation processes of the display screen and the light environment sensor module of the existing consumer electronic product, and comprises the following steps: and testing and evaluating the display effect of the display screen and the measurement accuracy of the light environment sensor in different lighting environments. The light environment simulation observation box on the market at present has single color temperature and smaller illumination range. The adjustable simulation of ultrahigh illumination (such as 10 kallmax outdoors) and wide color temperature range (such as 2700-. Therefore, a high dynamic range light source simulation system is designed. The system has the advantages of compact structure, high uniformity and strong operability, and is a convenient, practical and convenient high-dynamic-range light source simulation system.)

1. A high dynamic range light source simulation system is characterized by comprising four high-brightness wide color temperature light sources, two low-brightness wide color temperature light sources, a filter plate assembly, a cooling system, an observation box, an adjustable sample viewing platform, a brightness meter, a camera, shading cloth and control software, wherein the four high-brightness wide color temperature light sources are used for simulating an outdoor light environment, the output illumination is continuously adjustable from 2000lx to 100000lx, the output color temperature is continuously adjustable from 2700 and 10000K, the color rendering index CIE Ra is larger than 95, the two low-brightness wide color temperature light sources are used for simulating an indoor light environment by adopting two symmetrically-arranged multi-channel L ED light sources, the illumination adjustable range is from 0lx to 2000lx, the output color temperature is continuously adjustable from 2700 and 10000K, the color rendering index CIE Ra is larger than 95, and a DMX, wireless and serial port communication control mode is supported.

2. The high dynamic range light source simulation system of claim 1, wherein said filter assembly comprises a surface treated ferrous plate, wherein said array is perforated to achieve different filtering rates, and said filter is fixed to two low brightness wide color temperature light sources by magnets.

3. The high dynamic range light source simulation system of claim 1, wherein the cooling system is a forced air cooling system, the fans are symmetrically arranged on the rear cover plate of the observation box, and the front part of the observation box is reserved with air inlets.

4. The high dynamic range light source simulation system of claim 1, wherein the observation box is of a frame structure, the six light sources are symmetrically arranged in the clamping grooves of the observation box, the frame of the observation box is fixed in the casing of the observation box, the casing of the observation box is reserved with interfaces for power supply, communication and the like, and the upper cover plate, the left side plate and the right side plate are provided with fixed handles.

5. A high dynamic range light source simulation system as in claim 1, wherein said adjustable angle stage has an angular range of 0 to 90 degrees.

6. The high dynamic range light source simulation system of claim 1, wherein the camera monitors the light source simulation system experiment.

7. The high dynamic range light source simulation system of claim 1, wherein the light blocking cloth is fixed to the front side plate of the observation box by a magnet to create a closed environment to prevent the observation box from being affected by ambient light in the laboratory.

8. A high dynamic range light source simulation system according to claim 1, wherein said control software implements control, color temperature adjustment, brightness adjustment, and scene control of the high dynamic range light source simulation system, comprising: outdoor light mode, indoor light mode, automatic cycle control mode.

Technical Field

The invention relates to the field of light environment simulation, in particular to a high dynamic range light source system capable of simulating different lighting environments for testing and evaluating display effects of a display screen and measuring accuracy of a light environment sensor.

Background

With the development of science and technology, display screens have been widely integrated into personal electronic consumer products, such as mobile phones, tablet computers, automobiles, and the like. In general, a light environment sensor is integrated around the display screen, and the light brightness around the display screen is sensed by the light environment sensor, so that the brightness of the display screen is adjusted to adapt to different light environments. Therefore, the whole display screen and light environment sensor module needs to be correspondingly tested in the research, development and generation processes, and a light source observation box capable of simulating different color temperatures and illumination intensities is needed during testing and is used for testing and evaluating the display effect of the display screen and the measurement accuracy of the light environment sensor in different lighting environments.

At present, the observation box in the market is usually a combination of several fixed light sources, such as D65, a, fluorescent lamps, etc., and the brightest illumination is 2000-. To this end, we have devised a high dynamic range light source simulation system that solves the above problems, and that can simulate the range of illumination from midday daylight to evening moonlight: 10-0.1 lx, and is suitable for evaluating the display effect of the display screen and the measurement accuracy of the light environment sensor in different lighting environments when the display screen of the consumer electronic product and the light environment sensor module are tested.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a high dynamic range light source simulation system which comprises four high-brightness wide color temperature light sources, two low-brightness wide color temperature light sources, a filter plate assembly, a cooling system, an observation box, a brightness meter and camera control software.

The four high-brightness wide-color-temperature light sources adopt L ED panel soft lamps which are symmetrically arranged in size, the light sources are fused with the latest semiconductor technology, an optimized optical algorithm and a multi-channel L ED light mixing technology, and support DMX, wireless and serial port communication control modes, the four high-brightness wide-color-temperature light sources are used for simulating an outdoor light environment, the output illumination is 2000lx-100000lx continuously adjustable, the output color temperature 2700 and 10000K is continuously adjustable, the color rendering index CIE Ra is larger than 95, the two low-brightness wide-color-temperature light sources adopt two symmetrically-arranged multi-channel L ED light sources for simulating an indoor light environment, the illumination adjustable range is 0-2000lx, the output color temperature 2700 and 10000K is continuously adjustable, the color rendering index CIE Ra is larger than 95, and the DMX, wireless and serial port communication control modes are supported.

The filter plate component adopts a surface-treated iron plate, different filter rates are achieved after round holes are punched in the array, and the light transmittance is 1% and 10% of the filter plate is standardized. The filter plate is fixed on the light emitting surfaces of the two low-brightness wide-color-temperature light sources by the magnets, is easy and convenient to replace, and can be switched to filter plates with different light transmittance according to actual requirements in actual use.

The cooling system adopts forced air cooling, six fans are symmetrically arranged on a rear cover plate of the observation box, and an air inlet is reserved in the front of the observation box.

The observation box adopt a frame structure, six light sources are symmetrically arranged in the clamping groove of the observation box, the observation box frame fixes the observation box shell through screws, interfaces such as a power supply and communication are reserved in the observation box shell, and meanwhile, the upper cover plate, the left side plate and the right side plate are provided with fixed handles, so that the observation box is convenient to disassemble and carry. The interior of the observation box is painted with neutral ash in color, so that a standard illumination observation environment is provided.

The adjustable angle sample viewing platform adopts aluminum alloy support and panel beating to see the sample combination, sees the sample spraying and is neutral grey, like Munsell N5 or Munsell N7 neutral grey, sees sample angle adjustable range 0 to 90 degrees, conveniently is surveyed electronic product display screen and luminous environment sensor adjustment and detects the angle.

The control software realizes the control, color temperature adjustment and brightness adjustment of the high dynamic range light source simulation system, realizes the calibration of the light source through the external measuring equipment, and the control scene comprises: outdoor light mode, indoor light mode, automatic cycle control mode.

The invention develops a high dynamic range light source simulation system through structure, optical design and arrangement, which comprises an observation box, a high-brightness wide-color-temperature light source, a low-brightness wide-color-temperature light source, a filter plate and other components, and simultaneously realizes the output of the high dynamic range light source by combining control software, and can simulate the adjustable illumination range of 0-100000lx from indoor to outdoor and the adjustable illumination range of 2700 + 10000K from indoor to outdoor. The system has compact and reasonable structure and high automation level, and is a set of powerful and conveniently popularized high dynamic range light source simulation system.

Drawings

FIG. 1 is a block diagram of an embodiment high dynamic range light source simulation system;

FIG. 2 is an exploded view of an embodiment high dynamic range light source simulation system;

FIG. 3 is a block diagram of an internal view box frame of the high dynamic range light source simulation system of an embodiment;

FIG. 4 is a front view of an internal view box frame of an embodiment high dynamic range light source simulation system;

FIG. 5 is a bottom view of an internal sight box frame of an embodiment high dynamic range light source simulation system;

FIG. 6 is a diagram of an embodiment high dynamic range light source simulation system view box enclosure;

FIG. 7 is a schematic diagram of a cold adjustable angle stage of a high dynamic range light source simulation system according to an embodiment;

FIG. 8 is a block diagram of an embodiment high dynamic range light source simulation system control system;

FIG. 9 is an embodiment high dynamic range light source simulation system software interface.

Reference numbers in the figures: the device comprises a casing of an observation box 1, an observation item base 2, an upper cover plate of the observation box 3, an angle-adjustable sample-viewing table 4, an angle-adjustable inclined plate 41, an angle-adjustable bracket 42, an observation box frame 5, a trapezoid frame 6, a 74040 high-brightness wide-color-temperature light source, a 88040 high-brightness wide-color-temperature light source, a 9 low-brightness wide-color-temperature light source, a 10 fan, a 11 power interface, a 12 observation box handle, a 13 switch, a 14 communication interface and a 15 filter plate.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 and 2 are exploded views of a high dynamic range light source simulation system according to an embodiment, which includes a viewing box housing 1, a viewing frame base 2, a viewing box upper cover plate 3, an angle-adjustable sample stage 4, and an internal viewing box frame 5.

Fig. 3 is a three-dimensional diagram of a frame structure of an observation box in a high dynamic range light source simulation system, which includes two 4040 high-brightness wide-color-temperature light sources 7, two 8040 high-brightness wide-color-temperature light sources 8, two low-brightness wide-color-temperature light sources 9, and a trapezoid frame 6.

FIG. 4 is a front view of the interior of an exemplary high dynamic range light source simulation system with electronics display and light environment sensor optically detecting optimal placement.

FIG. 5 is a top view of an observation box of the high dynamic range light source simulation system of the embodiment, which shows the spatial positions of six light sources more intuitively. The two 4040 high-brightness wide color temperature light sources 7 are arranged in the center of the lamp box, the light-emitting surfaces of the two 8040 high-brightness wide color temperature light sources 8 form an angle of 60 degrees with the horizontal plane and are symmetrically arranged on two sides of the observation box, the two low-brightness wide color temperature light sources 9 are symmetrically arranged on two sides of the two 4040 high-brightness wide color temperature light sources 7, the filter plate 15 is arranged at the front end of the light-emitting surface of the low-brightness wide color temperature light sources 9, and the filter plate 15 is fixed by a magnet.

Fig. 6 is a cooling system diagram of the high dynamic range light source simulation system of the embodiment, which adopts forced air cooling, six fans 10 are symmetrically arranged on the rear cover plate of the observation box housing 1, an air inlet is reserved at the front part of the observation box, and a power interface 11, an observation box handle 12, a switch 13 and a communication interface 14 are respectively arranged on the side cover plate of the observation box housing 1.

Fig. 7 is an embodiment of an adjustable angle sample-viewing platform of a high dynamic range light source simulation system, which comprises an adjustable angle sloping plate 41 and an adjustable angle bracket 42, wherein the adjustable angle sloping plate 41 is arranged on the adjustable angle bracket 42, the adjustable angle of the balcony is viewed from 0 to 90 degrees, and the display screen of the tested electronic product and the light environment sensor can be adjusted to detect the angle conveniently.

Fig. 8 is a block diagram of a control system of the high dynamic range light source simulation system according to the embodiment, and the system sends information of lighting environment, such as color temperature and illuminance, required by a user to a high-brightness wide-color-temperature light source and a low-brightness wide-color-temperature light source through control software, so as to realize simulation of lighting scenes from outdoor light to indoor light.

Fig. 9 is a software interface of the high dynamic range light source simulation system according to the embodiment, where the control software implements control, color temperature adjustment, and brightness adjustment of the high dynamic range light source simulation system, and the control scenario includes: outdoor light mode, indoor light mode, automatic cycle control mode.

The actual measurement data table of each scene further illustrates the advancement of the high dynamic range light source simulation system.

The foregoing is a more detailed description of the invention that is presented in connection with specific embodiments, and the practice of the invention is not intended to be limited to these descriptions. For those skilled in the art to which the invention pertains, several simple changes may be made without departing from the spirit of the invention, and all should be considered as falling within the scope of the invention.