WO2019019591A1 - 光源亮度衰减测试装置及投影设备 - Google Patents

光源亮度衰减测试装置及投影设备 Download PDF

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Publication number
WO2019019591A1
WO2019019591A1 PCT/CN2018/074755 CN2018074755W WO2019019591A1 WO 2019019591 A1 WO2019019591 A1 WO 2019019591A1 CN 2018074755 W CN2018074755 W CN 2018074755W WO 2019019591 A1 WO2019019591 A1 WO 2019019591A1
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WIPO (PCT)
Prior art keywords
light
light source
brightness
relay
mirror
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PCT/CN2018/074755
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English (en)
French (fr)
Inventor
杜伦春
侯海雄
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Publication of WO2019019591A1 publication Critical patent/WO2019019591A1/zh
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/04—Optical benches therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Definitions

  • the utility model relates to the field of optical technology, in particular to a light source brightness testing device, in particular to a device for testing brightness attenuation of a light source.
  • the brightness of the projection device light source (including the film projector, etc.) will decay with the use time.
  • FIG. 1 A method for testing the brightness decay of a light source is shown in FIG. 1.
  • the brightness of the light source 101 of the projection device is tested by integrating the ball 102 and projecting the light source 101 directly into the integrating sphere 102 to test the brightness value of the light source.
  • the product such as a movie projector
  • the light source is removed and the brightness is tested. This process is also very cumbersome and complicated to operate. If the brightness is calculated by the light from the projection device, the brightness value measured in this way contains other factors and cannot obtain accurate data. Due to the above reasons, the current test of the brightness decay of the light source during use is basically impossible to achieve accurately, and there is no relevant product in the market at present.
  • the purpose of the utility model is to provide a light source brightness attenuation test device with convenient test operation and a projection device capable of testing the brightness of the light source in use.
  • the present invention provides a light source brightness attenuation test device, which includes a mount and a light-receiving mirror, a relay assembly, and a brightness tester sequentially mounted on the mount, the relay assembly including At least one relay lens, the mounting seat is configured to be inserted into an opening on the optical channel of the light source to be tested, thereby enabling the light-receiving mirror to extract a portion of the light from the light generated by the light source to be tested, The relay component is directed to the test probe of the brightness tester and the brightness test is performed by the brightness tester.
  • the light source brightness attenuation test device of the utility model is provided with a light-receiving mirror through the lower end of the mounting seat, extends into the light source, intercepts part of the light of the light source, and focuses the intercepted light on the test probe of the brightness tester through the relay component, and The brightness value is read by the test probe.
  • the relay component may be a relay lens, and the relay component may use only one relay lens to guide the extracted light to the test probe; or may be a set of lenses, and the preferred embodiment
  • the relay component can also implement the guiding by using two or more relay lenses, for example, two combined relay lenses, which can obtain ideal concentrated light and improve the imaging precision of guiding to the test probe. degree.
  • the relay component includes at least one relay lens and at least one relay mirror, and the light source light extracts a portion of the light to be detected through the light-receiving mirror, and the portion of the light to be measured passes through the at least one A test probe that leads to the brightness tester following the lens and at least one relay mirror.
  • the relay component includes a first relay lens, a relay mirror, and a second relay lens, and the light source light extracts a portion of the light to be detected through the light-receiving mirror, and the portion of the light to be tested passes through the light.
  • the first relay lens, the relay mirror, and the second relay lens are guided to the test probe of the brightness tester.
  • the light path is changed by the relay component to better focus the spot to the test probe of the brightness tester, which facilitates the test probe receiving, and makes the light source brightness attenuation test device structure more flexible.
  • a light absorbing means is provided on the side of the optical path in the direct direction of the relay mirror.
  • the relay mirror adopts a half-through mirror to further attenuate the light intensity.
  • the transflective mirror mentioned in the present invention is a partially penetrating partial mirror, and a lens having a low reflectance, for example, a reflectance of 10% or less, can be used, and the effect of attenuating the light intensity can be achieved as needed.
  • the light-receiving mirror adopts a half-transparent mirror, so that the light extracted through the light-receiving mirror only occupies a small portion of the light source, and does not affect the use of the projection device.
  • the transflective mirror mentioned in the present invention is a partially penetrating partial mirror, and a lens having a low reflectance, for example, a reflectance of 10% or less, may be used, which is selected as needed, and the light-receiving mirror adopts a half-through half.
  • the mirror can achieve the effect of attenuating the light intensity without affecting the use of the projection device.
  • the light source brightness decay test device is further provided with a brightness attenuating sheet before the test light reaches the test probe.
  • the brightness value of the brightness test probe is not exceeded beyond the brightness tester test value range.
  • the light-receiving mirror is fixed to the mounting seat by a spring piece.
  • the brightness attenuating sheet is positioned by the brightness attenuating plate pressing ring and the mounting table in the mounting seat, and the relay lens is positioned and matched with the mounting table in the mounting seat by the relay lens pressing ring.
  • the light-receiving mirror is disposed at an end of the mounting seat, and a lower portion of the mounting seat is provided with a mounting flange, and the light source brightness attenuation test device is mounted on the light source by the mounting flange At the opening of the passage.
  • the brightness tester converts the brightness obtained by the test into the actual light brightness of the light source to be tested according to the reflectivity of the light-receiving mirror and the attenuation ratio of the partial light reaching the test probe of the brightness tester. Or according to the light attenuation ratio of the test probe reaching the brightness tester, the light source attenuation ratio is obtained.
  • the utility model also provides a projection device, which comprises a projection light source and a projection light channel, wherein the projection light channel is provided with an opening for accommodating the light source brightness attenuation test device, and the light source brightness attenuation test device comprises a mount for testing a brightness tester for light intensity, a light-receiving mirror for extracting light from a portion of the light source, a relay assembly for guiding the light extracted by the light-receiving mirror to a test probe of the brightness tester, the relay assembly including at least one a relay lens, the light-receiving mirror is obliquely disposed at a lower end of the mount, the relay assembly is disposed in the mount, and a lower portion of the light source brightness decay test device together with the light-receiving mirror is openable from the opening of the projection light passage After the light source enters the projection light channel, a part of the light to be measured is extracted by the light-receiving mirror, and the part of the light to be tested is guided to the test probe of the
  • the light source brightness attenuation test device of the present invention is mainly for a test device for using a light source in a projection device for brightness attenuation.
  • the utility model can be applied to an existing projection device and can be accurately Feedback of the attenuation of the light source during use, the test operation is convenient, and the brightness of the light source can be tested separately without affecting the normal use of the projection device.
  • FIG. 1 is a schematic diagram of a method for testing brightness of a prior art light source
  • FIG. 2 is a perspective view of a first embodiment of a light source brightness attenuation test device of the present invention
  • FIG. 3 is a cross-sectional view showing an embodiment of a light source brightness attenuation test device of the present invention
  • Figure 4 is a partial enlarged view of a portion of Figure 3;
  • Figure 5 is a partial enlarged view of a portion b in Figure 3;
  • FIG. 6 is a schematic diagram of an application example of a light source brightness attenuation test device of the present invention.
  • Figure 7 is a cross-sectional view showing the second embodiment of the light source brightness attenuation test device of the present invention.
  • Figure 8 is a cross-sectional view showing the third embodiment of the light source brightness attenuation test apparatus of the present invention.
  • the first embodiment of the light source brightness attenuation test device of the present invention includes a mount 400, a brightness tester 300, a light-receiving mirror 210, and a relay lens 220.
  • the light-receiving mirror 210 is disposed at a lower end of the mounting base 400 for extracting light from a portion of the light source.
  • the relay lens 220 is disposed in the mounting base 400 and corresponding to the reflected light path of the light-receiving mirror 210.
  • the brightness tester 300 is disposed at the end of the optical path for testing the brightness of the light, and the test probe 310 of the brightness tester 300 is aligned with the exit lens 220 to exit the optical path.
  • the light source light extracts a portion of the light to be detected via the light-receiving mirror 210, and the portion of the light to be measured is guided to the test probe 310 of the brightness tester 300 via the relay lens 220.
  • a brightness attenuation sheet 240 is further disposed between the relay lens 220 and the test probe 310, so that the brightness value of the light reaching the brightness test probe 310 does not exceed the brightness tester test value. range.
  • the brightness of the brightness test probe 310 can be exceeded by the brightness attenuation sheet 240 or more of the attenuation sheet.
  • the tester tests the range of values, and when the light source brightness decay test device is used, the projector device can be suspended, but even so, the brightness decay test by the light source brightness decay test device of the present invention is still simpler and more convenient than the prior art operation. Since there is no need to disassemble the light source, the light source brightness attenuation test device of the present invention can be directly inserted into the matching opening of the device to complete the operation, and a more detailed structure is explained in the following embodiments.
  • the light-receiving mirror 210 is a half-transparent mirror, and the half-through mirror is a partially penetrating partial mirror, and a lens with a low reflectance can be used, for example, a reflectivity of 10%. Or 5%, select as needed.
  • a lens with a low reflectance can be used, for example, a reflectivity of 10%. Or 5%, select as needed.
  • the light extracted by the light-receiving mirror 210 only occupies a small portion of the light source, and does not affect the use of the projection device, and the brightness of the light source can be tested while being used by the projection device.
  • the light-receiving mirror 210 having a sufficiently low reflectivity is used so that the brightness value of the light reaching the brightness test probe 310 does not exceed the brightness tester test value range, and the brightness-attenuating sheet 240 may be omitted.
  • the two ends of the light-receiving mirror 210 are fixed to the lower end of the mounting seat by the elastic piece 211.
  • the brightness attenuating sheet 240 is mounted in the mounting base 400 by the brightness attenuating plate pressing ring 250 in cooperation with a mounting table (not labeled) provided in the mounting seat.
  • the relay lens 220 is mounted and mounted in the mount 400 by the relay lens ring 230 in cooperation with a mounting table (not labeled) provided in the mount.
  • the brightness tester 300 is mounted on the optical path focus position of the brightness tester by the brightness tester mount 410, and the purpose is that the most part of the light that may be intercepted is completely acquired by the test probe 310 of the brightness tester 300, and is read out by the brightness tester.
  • the brightness tester mount 410 can be secured to the mount 400 by screws 411.
  • the projection light source 500 of the projection device of the present invention is projected through the projection light channel 600 .
  • the front end and the rear end of the projection optical channel 600 are respectively provided with a first projection lens 610 and a second projection lens 620 .
  • An upper portion of the optical passage 600 is provided with an opening (not labeled), and a lower portion of the mounting base 400 is provided with a mounting flange 401 whose size is matched with a portion below the mounting flange 401 of the light source brightness attenuation test device, the brightness of the light source
  • the lower portion of the attenuation test device together with the light-receiving mirror 210 can be inserted into the projection light channel 600 from the opening of the projection light channel 600, between the first projection lens 610 and the second projection lens 620, so that the light-receiving mirror 210 is placed In the light path of the projected light.
  • the light source brightness attenuation test device is mounted on the opening of the projection light tunnel 600 by the mounting flange 401 and the projection light guide 600 housing, and can be fixed by the screw 402.
  • the light of the projection light source 500 enters the projection light channel 600 through the first projection lens 610
  • part of the light to be detected is extracted through the light-receiving mirror 210, and most of the remaining light continues to be projected by the second projection lens 620 without affecting the projection device. use.
  • the portion of the light to be measured is guided through the relay lens 220 and attenuated by the brightness attenuation sheet 240, and finally focused to the test probe of the brightness tester.
  • the relay component of the present invention uses two relay lenses 221 and 222 to guide the light to be tested, and can obtain ideal concentrated light and improve guiding to the test probe 310. Imaging clarity.
  • the rest of the structure is basically the same as that described in the embodiment, and details are not described herein again.
  • the relay component in this embodiment includes a first relay lens 223 , a relay mirror 212 , and a second relay lens 224 .
  • the mirror 210 extracts a portion of the light to be detected, and the portion of the light to be detected is guided to the brightness tester 300 via the first relay lens 223, the relay mirror 212, the second relay lens 224, and the brightness attenuation sheet 240.
  • the optical path is changed by the first relay lens 223, the relay mirror 212, and the second relay lens 224 to better focus the light to the test probe 310 of the brightness tester 300, so that the test probe 310 can receive the brightness of the light source.
  • the structure of the attenuation test device is more flexible, and the mount 400 can be set to a corner type.
  • the relay mirror 212 adopts a half-through mirror, which further has the effect of attenuating the light intensity.
  • the half-through mirror is a partially penetrating partial mirror, and the reflection rate can be low.
  • the lens such as a reflectance of 10% or 5%, is selected as needed.
  • the relay mirror 212 can also be a general mirror.
  • a portion of the light passing through the relay mirror 212 is reflected to change the optical path, and then guided to the test probe 310 via the second relay lens 224, and part of the light penetrates the mirror directly, and the light path in the direct direction of the mirror can be
  • the side is provided with a light absorbing device, such as the black light absorbing layer 213 shown in FIG. 8, etc., and the light transmitted through the mirror 212 is at least partially or mostly absorbed by the light absorbing layer 213 to prevent the light in the direct direction from being reflected or diffused. Affect the test results.
  • the relay assembly may further include more than two relay lenses and two or more relay mirrors.
  • the light source brightness attenuation test device of the utility model is mainly for a test device for using a light source in a projection device for brightness attenuation.
  • the utility model can be applied to an existing projection device, and can accurately feedback the attenuation of the light source during use.
  • the test operation is convenient, and the brightness of the light source can be tested separately without affecting the normal use of the projection device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

一种光源亮度衰减测试装置包括：安装座（400）、亮度测试器（300）、设置在安装座（400）下端的取光反射镜（210）、中继组件，中继组件包括至少一个中继透镜（220），中继组件设置在安装座（400）内。一种投影设备包括：投影光源（500）、投影光通道（600），投影光通道（600）上设有开口，光源亮度衰减测试装置的下部连同取光反射镜（210）可从投影光通道（600）的开口插入。光源光线进入投影光通道（600）后，经取光反射镜（210）提取出部分待测光线，部分待测光线经由中继组件引导至亮度测试器（300）的测试探头（310）。光源亮度衰减测试装置可应用于现有的投影设备中，能够准确反馈出光源在使用过程中的衰减情况，测试操作方便，可以实现对光源亮度单独测试，不影响投影设备的正常使用。

Description

光源亮度衰减测试装置及投影设备 技术领域
本实用新型涉及光学技术领域，特别是涉及一种光源亮度测试装置，尤其是具有对光源亮度衰减测试的装置。
 
 背景技术
一般投影设备光源的亮度（包含电影放映机等）会随着使用时间而出现衰变情况，为验证投影机光源使用过程是否会出现快速衰减，需要对光源亮度的衰减情况进行测试，描绘衰减曲线，看是否属于正常衰减。
 技术问题
现有对光源亮度衰减测试的方法，如图1所示，通常对于投影设备光源101的亮度的测试是通过积分球102，将光源101直接投射至积分球102中，来测试光源的亮度值。但是我们光源装入到产品中（比如电影放映机）后，当我们想了解我们光源亮度的衰减情况就变得比较困难，我们不能把光源拆下来去测试亮度，这样会中断对光源的使用，若将光源拆卸下来再测试亮度，这个过程也十分麻烦，操作复杂；如果通过投影装置出来的光来计算亮度，则因为这样测出来的亮度值包含有其他因素影响，不能得到准确的数据。因以上原因，目前光源在使用过程中的亮度衰减情况的测试基本没法准确实现，目前市面无相关产品。
 
 技术解决方案
本实用新型的目的在于提供一种测试操作方便的光源亮度衰减测试装置及一种可在使用中测试光源亮度的投影设备。
为实现上述目的，本实用新型提供一种光源亮度衰减测试装置，其包括安装座以及依次安装于所述安装座上的取光反射镜、中继组件以及亮度测试器，所述中继组件包括至少一个中继透镜，所述安装座设置成能够插入待测光源的光通道上的开口，进而使得该取光反射镜能够从待测光源所产生光线中的提取部分光线，该部分光线经由该中继组件引导至该亮度测试器的测试探头，并由所述亮度测试器进行亮度测试。
本实用新型光源亮度衰减测试装置通过安装座下端设置取光反射镜，伸入到光源内部，截取光源部分光线，并通过中继组件将所截取的光线聚焦到亮度测试器的测试探头上，并通过该测试探头读取亮度值。通过该方案可以更方便的提取光源光线进行亮度测试，而免除像现有技术中那样必须将光源拆下来才能测试的麻烦。
在不同实施案例中，中继组件可以是一个中继透镜，该中继组件可以只用一个中继透镜来将提取到的光线引导至测试探头；也可以是一组镜片组成，较佳实施方式中，该中继组件也可以采用两个或两个以上中继透镜来实现所述引导，例如两个组合使用的中继透镜，可以获得较理想的汇聚光线，提高引导至测试探头的成像清晰度。
较佳实施方式中，所述中继组件包括至少一个中继透镜和至少一个中继反射镜，光源光线经取光反射镜提取出部分待测光线，该部分待测光线经由所述至少一个中继透镜和至少一个中继反射镜引导至亮度测试器的测试探头。
较佳实施方式中，所述中继组件包括第一中继透镜、中继反射镜、第二中继透镜，光源光线经取光反射镜提取出部分待测光线，该部分待测光线经由所述第一中继透镜、中继反射镜、第二中继透镜引导至亮度测试器的测试探头。通过中继组件改变光路使光斑更好的聚焦到亮度测试器的测试探头，便于测试探头接收，使该光源亮度衰减测试装置结构更灵活。
较佳实施方式中，在所述中继反射镜的直射方向的光路一侧设有吸光装置。
较佳实施方式中，所述中继反射镜采用半穿半反镜，进一步起到衰减光强度的效果。本实用新型提及的半穿半反镜是部分穿透部分反射镜，可以采用反射率较低的透镜，例如反射率10%或以下，根据需要选取，可以达到衰减光强度的效果。
较佳实施方式中，所述取光反射镜采用半穿半反镜，这样经由取光反射镜所提取的光线只占光源的一小部分，不影响投影设备的使用。本实用新型提及的半穿半反镜是部分穿透部分反射镜，可以采用反射率较低的透镜，例如反射率10%或以下，根据需要选取，所述取光反射镜采用半穿半反镜，可以达到衰减光强度的效果，同时不影响投影设备的使用。
较佳实施方式中，所述光源亮度衰减测试装置在测试光线到达测试探头前还设有亮度衰减片。使到达亮度测试探头的光亮度值不超出亮度测试器测试值范围。
较佳实施方式中，所述取光反射镜通过弹片固定于安装座上。
较佳实施方式中，所述亮度衰减片通过亮度衰减片压圈与安装座内的安装台配合定位，所述中继透镜通过中继透镜压圈与安装座内的安装台配合定位。
较佳实施方式中，该取光反射镜设置于所述安装座的末端，所述安装座下部设有安装凸缘，通过该安装凸缘将该光源亮度衰减测试装置安装在光源的所述光通道开口处。
所述亮度测试器根据所述取光反射镜的反射率以及所述部分光线在达到所述亮度测试器的测试探头的衰减比例将测试获得的光亮度换算成所述待测光源的实际光亮度；或是根据达到所述亮度测试器的测试探头的光线衰减比例，得到光源衰减比例。
本实用新型还提供一种投影设备，其包括投影光源、投影光通道，所述投影光通道上设有开口以容纳光源亮度衰减测试装置，所述光源亮度衰减测试装置包括安装座、用于测试光线亮度的亮度测试器、用于提取光源部分光线的取光反射镜、用于将取光反射镜提取的光线引导至亮度测试器的测试探头的中继组件，所述中继组件包括至少一个中继透镜，所述取光反射镜倾斜设置在安装座下端，所述中继组件设置在安装座内，该光源亮度衰减测试装置的下部连同取光反射镜可从所述投影光通道的开口插入，光源光线进入投影光通道后，经取光反射镜提取出部分待测光线，该部分待测光线经由中继组件引导至亮度测试器的测试探头。
 有益效果
有益效果：区别于现有技术的情况，本实用新型光源亮度衰减测试装置主要是针对光源在投影设备中使用亮度衰减情况的测试装置，本实用新型可应用于现有的投影设备中，能够准确反馈出光源在使用过程中的衰减情况，测试操作方便，可以实现对光源亮度单独测试，不影响投影设备的正常使用。
 
 附图说明
图1是现有技术光源亮度测试方法示意图；
图2是本实用新型光源亮度衰减测试装置实施例一立体图；
图3是本实用新型光源亮度衰减测试装置实施例一剖视图；
图4是图3中a部分的局部放大图；
图5是图3中b部分的局部放大图；
图6是本实用新型光源亮度衰减测试装置实施例一应用示意图；
图7是本实用新型光源亮度衰减测试装置实施例二剖视图；
图8是本实用新型光源亮度衰减测试装置实施例三剖视图。
 本发明的实施方式
为使本领域的技术人员更好地理解本实用新型的技术方案，下面结合附图和具体实施方式对本实用新型做进一步详细描述。
请参照图2~6，本实用新型光源亮度衰减测试装置实施例一，其包括：安装座400、亮度测试器300、取光反射镜210、中继透镜220。该取光反射镜210倾斜设置在安装座400下端，用于提取光源部分光线；该中继透镜220采用凸透镜，设置在安装座400内，对应取光反射镜210的反射光路；该亮度测试器300设置在光路末端，用于测试光线亮度，亮度测试器300的测试探头310对准中继透镜220出射光路。光源光线经由取光反射镜210提取出部分待测光线，该部分待测光线经由中继透镜220引导至亮度测试器300的测试探头310。
在本实施例中，在测试光线到达测试探头前，在中继透镜220与测试探头310之间还设有亮度衰减片240，使到达亮度测试探头310的光亮度值不超出亮度测试器测试值范围。
在本实用新型中，所述取光反射镜210若选用普通反射镜，则可以通过更高衰减值的亮度衰减片240或更多衰减片来使得到达亮度测试探头310的光亮度值不超出亮度测试器测试值范围，而使用该光源亮度衰减测试装置时，可以暂停使用投影仪设备，但即便如此，通过本实用新型光源亮度衰减测试装置来进行亮度衰减测试仍然比现有技术操作更简单方便，因为无需拆卸光源，只需将本实用新型光源亮度衰减测试装置直接插入设备相匹配的开口中即可完成操作，更详细结构在以下实施例说明。
在本实施例中，所述取光反射镜210选用半穿半反镜，所述半穿半反镜是指部分穿透部分反射镜，可以采用反射率较低的透镜，例如反射率10%或5%，根据需要选取。这样经由取光反射镜210所提取的光线只占光源的一小部分，不影响投影设备的使用，可以实现在投影设备使用的同时测试光源亮度。采用足够低反射率的取光反射镜210，使到达亮度测试探头310的光亮度值不超出亮度测试器测试值范围，也可以省略所述亮度衰减片240。
如图3~图5所示，在本实施例中，所述取光反射镜210两端通过弹片211固定于安装座下端。所述亮度衰减片240通过亮度衰减片压圈250与安装座内设置的安装台（未标识）相配合定位安装于安装座400内。所述中继透镜220通过中继透镜压圈230与安装座内设置的安装台（未标识）相配合定位安装于安装座400内。所述亮度测试器300通过亮度测试器固定座410安装在待测试光路聚焦位置，目的在于最大可能将截取的部分光全部由亮度测试器300的测试探头310获取，并通过亮度测试器读取出亮度数据，该亮度测试器固定座410可以通过螺钉411来与安装座400固定。
请结合参阅图6，本实用新型投影设备的投影光源500通过投影光通道600进行投影，该投影光通道600的前端和后端分别设有第一投影透镜610和第二投影透镜620，该投影光通道600的上部设有开口（未标识），所述安装座400下部设有安装凸缘401，该开口大小形状与光源亮度衰减测试装置的安装凸缘401以下的部分相匹配，该光源亮度衰减测试装置的下部连同取光反射镜210可从所述投影光通道600的开口插入投影光通道600中，位于第一投影透镜610和第二投影透镜620之间，使得取光反射镜210置于投影光的光路中。
该光源亮度衰减测试装置通过该安装凸缘401与投影光通道600外壳的固定，安装在投影光通道600的开口处，可以通过螺钉402来固定。
投影光源500的光线经第一投影透镜610进入投影光通道600后，经由取光反射镜210提取出部分待测光线，其余大部分光线继续由第二投影透镜620投射出去，不影响投影设备的使用。该部分待测光线经由中继透镜220引导以及经过亮度衰减片240进行亮度衰减，最后聚焦至亮度测试器的测试探头。
请参阅图7，在实施例二中，本实用新型中的中继组件采用两个中继透镜221、222来实现对待测试光线的引导，可以获得较理想的汇聚光线，提高引导至测试探头310的成像清晰度。其余结构与实施例所述基本一致，在此不再赘述。
请参阅图8实施例三，与前述实施例不同的是，本实施例中的中继组件包括第一中继透镜223、中继反射镜212、第二中继透镜224，光源光线经取光反射镜210提取出部分待测光线，该部分待测光线经由所述第一中继透镜223、中继反射镜212、第二中继透镜224以及亮度衰减片240引导至亮度测试器300的测试探头310。通过第一中继透镜223、中继反射镜212、第二中继透镜224改变了光路，使光线更好的聚焦到亮度测试器300的测试探头310，便于测试探头310接收，使该光源亮度衰减测试装置结构更灵活，安装座400可以设置成拐角型。
本实施例中，所述中继反射镜212采用半穿半反镜，进一步起到衰减光强度的效果，所述半穿半反镜是指部分穿透部分反射镜，可以采用反射率较低的透镜，例如反射率10%或5%，根据需要选取。该中继反射镜212也可以采用一般反射镜。
经过中继反射镜212的光其中部分被反射改变光路，然后经第二中继透镜224引导至测试探头310，部分光则穿透该反射镜直射，则可以在反射镜的直射方向的光路一侧设置吸光装置，例如图8所示的黑色吸光层213等等，透过反射镜212的光至少部分或大部分被所述吸光层213吸收，以避免直射方向的光线经过反射或漫射后影响测试结果。
作为实施例的等效变换，该中继组件还可以包括有两个以上中继透镜和两个或两个以上中继反射镜。
本实用新型光源亮度衰减测试装置主要是针对光源在投影设备中使用亮度衰减情况的测试装置，本实用新型可应用于现有的投影设备中，能够准确反馈出光源在使用过程中的衰减情况，测试操作方便，可以实现对光源亮度单独测试，不影响投影设备的正常使用。
以上仅为本实用新型的实施方式，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围。
 

Claims (10)

  1.  一种光源亮度衰减测试装置，其特征在于，包括安装座以及依次安装于所述安装座上的取光反射镜、中继组件以及亮度测试器，所述中继组件包括至少一个中继透镜，所述安装座设置成能够插入待测光源的光通道上的开口，进而使得该取光反射镜能够从待测光源所产生光线中提取部分光线，该部分光线经由该中继组件引导至该亮度测试器的测试探头，并由所述亮度测试器进行亮度测试。
  2. 根据权利要求1所述的光源亮度衰减测试装置，其特征在于，所述中继组件包括至少一个中继透镜和至少一个中继反射镜，该部分光线经由所述至少一个中继透镜和至少一个中继反射镜引导至亮度测试器的测试探头。
  3. 根据权利要求2所述的光源亮度衰减测试装置，其特征在于，所述中继组件包括第一中继透镜、中继反射镜、第二中继透镜，该部分光线经由所述第一中继透镜、中继反射镜、第二中继透镜引导至亮度测试器的测试探头。
  4. 根据权利要求2或3所述的光源亮度衰减测试装置，其特征在于，在所述中继反射镜的直射方向的光路一侧设有吸光装置。
  5. 根据权利要求1、2或3所述的光源亮度衰减测试装置，其特征在于，所述取光反射镜采用半穿半反镜。
  6. 根据权利要求2或3所述的光源亮度衰减测试装置，其特征在于，所述中继反射镜采用半穿半反镜。
  7. 根据权利要求1、2或3所述的光源亮度衰减测试装置，其特征在于，所述光源亮度衰减测试装置在该部分光线到达测试探头前的光路上还设有亮度衰减片。
  8. 根据权利要求1、2或3所述的光源亮度衰减测试装置，其特征在于，所述取光反射镜通过弹片固定于安装座上，所述亮度衰减片通过亮度衰减片压圈与安装座内的安装台配合定位，所述中继组件通过中继透镜压圈与安装座内的安装台配合定位。
  9. 根据权利要求1、2或3所述的光源亮度衰减测试装置，其特征在于，该取光反射镜设置于所述安装座的末端，所述安装座上还设有安装凸缘，通过该安装凸缘将该光源亮度衰减测试装置安装在所述光通道的开口处。
  10. 一种投影设备，其特征在于，其包括投影光源以及投影光通道，所述投影光通道上设有开口，所述开口用于允许权利要求1-9任一项所述的光源亮度衰减测试装置的所述安装座插入所述投影光通道。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287818A (ja) * 1985-10-14 1987-04-22 Matsushita Electric Ind Co Ltd 輝度計測装置
CN201352150Y (zh) * 2008-12-22 2009-11-25 杭州数威软件技术有限公司 一种测光装置
CN102147288A (zh) * 2011-01-20 2011-08-10 广东威创视讯科技股份有限公司 色彩亮度检测辅助装置及色彩亮度检测装置
CN202195881U (zh) * 2011-08-26 2012-04-18 长春希迈气象科技股份有限公司 一种新型的防污染数字亮度计
CN202255836U (zh) * 2011-09-13 2012-05-30 江苏森莱浦光电科技有限公司 一种投影灯泡自动检测装置
CN106017869A (zh) * 2016-05-16 2016-10-12 深圳市矽电半导体设备有限公司 一种led亮度测试调节装置及系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287818A (ja) * 1985-10-14 1987-04-22 Matsushita Electric Ind Co Ltd 輝度計測装置
CN201352150Y (zh) * 2008-12-22 2009-11-25 杭州数威软件技术有限公司 一种测光装置
CN102147288A (zh) * 2011-01-20 2011-08-10 广东威创视讯科技股份有限公司 色彩亮度检测辅助装置及色彩亮度检测装置
CN202195881U (zh) * 2011-08-26 2012-04-18 长春希迈气象科技股份有限公司 一种新型的防污染数字亮度计
CN202255836U (zh) * 2011-09-13 2012-05-30 江苏森莱浦光电科技有限公司 一种投影灯泡自动检测装置
CN106017869A (zh) * 2016-05-16 2016-10-12 深圳市矽电半导体设备有限公司 一种led亮度测试调节装置及系统

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