WO2015051573A1 - 手持式镜片面焦度测量装置 - Google Patents

手持式镜片面焦度测量装置 Download PDF

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Publication number
WO2015051573A1
WO2015051573A1 PCT/CN2013/087640 CN2013087640W WO2015051573A1 WO 2015051573 A1 WO2015051573 A1 WO 2015051573A1 CN 2013087640 W CN2013087640 W CN 2013087640W WO 2015051573 A1 WO2015051573 A1 WO 2015051573A1
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WO
WIPO (PCT)
Prior art keywords
prism
lens
measuring head
optical measuring
measuring device
Prior art date
Application number
PCT/CN2013/087640
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English (en)
French (fr)
Inventor
朱韧
孟红祥
Original Assignee
杭州奥普特光学有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州奥普特光学有限公司 filed Critical 杭州奥普特光学有限公司
Priority to EP13895373.2A priority Critical patent/EP3056888A4/en
Publication of WO2015051573A1 publication Critical patent/WO2015051573A1/zh
Priority to US14/813,155 priority patent/US9835519B2/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02Testing optical properties
    • G01M11/0207Details of measuring devices
    • G01M11/0214Details of devices holding the object to be tested
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02Testing optical properties
    • G01M11/0228Testing optical properties by measuring refractive power
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02Testing optical properties
    • G01M11/0207Details of measuring devices
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00Assembling; Repairing; Cleaning
    • G02C13/003Measuring during assembly or fitting of spectacles

Definitions

  • the present invention relates to a lens power measuring device, and more particularly to a hand-held lens power measuring device.
  • the design method of the vehicle glasses lens on the server selects the half-production of the appropriate base according to the requirements of the order and calculates the surface shape of the surface to be processed, and the surface to be processed includes the spherical surface. , cylindrical, aspherical, toroidal, and free-form surfaces.
  • the half-sheet to be processed is first fixed to the small iron bracket by the upper disc, and then the small iron bracket is fixed on the workpiece shaft of the milling machine to mill the surface to be machined into the designed surface shape, and then small
  • the iron bracket is fixed on the workpiece axis of the polishing machine to polish the milled surface, and then the laser marking machine is used to mark the polished surface with an invisible mark indicating the prism reference point position and the cylinder axis reference direction.
  • the marked spectacle lens is separated from the small iron bracket by the lower disc, and then the transmission power of the processed lens is measured by a transmissive power meter, including parameters such as spherical degree, cylindrical degree and cylindrical axial position, and the order is Request for comparison.
  • the above-mentioned transmissive power meter can only measure the transmission power of the lens, but the transmission power is not only affected by the surface to be processed, but also affected by the quality of the curved surface shape of the lens, so it cannot accurately reflect the surface of the processed surface.
  • the quality of the surface shape for the processing of the lens of the garage, it is extremely important to ensure that the surface shape processed is consistent with the design surface.
  • Existing commercial instruments such as Automation & Robotics' Focovision SR2 and B Dual Lens Mapper control the surface quality of the lens by measuring the surface power of the lens surface.
  • the Focovision SR2 measures the single-point focal length of the lens surface.
  • Dual Lens Mapper cannot measure the fixed Lens on a small iron stand.
  • a mechanical scanning surface measuring device based on the principle of three coordinate axes, which can directly measure the three-dimensional shape of the surface of the lens that is not under the disk. It can be compared with the design surface to obtain machining error, but the disadvantage is that the measuring speed is very slow, measuring A lens takes about 10 minutes to meet the measurement requirements of the garage. At the same time, these instruments have the disadvantage of being bulky and moving.
  • the present invention is directed to the above problems, and proposes a handheld lens power measuring device.
  • a handheld lens power measuring device comprising: a main control cavity and an optical measuring head, wherein the main control cavity comprises a data and image processing control unit and a display screen, the main control cavity and the optical
  • the measuring heads are fixedly coupled together, the optical measuring head comprising a light source, a prism, a lens, a beam splitter, an annular diaphragm, an image sensor and a lens holder, wherein the image sensor, the ring diaphragm and the beam splitter are sequentially It is distributed down on the optical measuring head.
  • the optical elements in the optical measuring head are bonded together by photo glue or glue.
  • the prism comprises a reflective prism A, a reflective prism B, a reflective prism C and a reflective prism D
  • the reflective prism A is disposed at a right bottom corner of the optical measuring head
  • the light source is disposed at
  • the reflective prism B is disposed at an upper portion of the optical measuring head, and the left and right apex angles of the upper portion of the reflective prism B are both 45 degrees chamfered
  • the reflective prism C is disposed at the left bottom corner of the optical measuring head.
  • the left apex angle of the lower portion of the reflective prism C is 45 degrees chamfered
  • the reflective prism D is disposed at a position of the image sensor
  • the lens is disposed between the reflective prism B and the reflective prism C
  • the beam splitter It is disposed in parallel with the chamfer of the left apex angle of the lower portion of the reflecting prism C.
  • the prism further comprises a connecting prism A, a connecting prism B and a connecting prism C, wherein the connecting prism A is disposed between the reflecting prism B and the reflecting prism C, and the connecting prism B is disposed at Between the beam splitter and the annular diaphragm, the connecting prism C is disposed between the reflecting prism A and the reflecting prism D.
  • the lens holder is a hollow cylindrical structure disposed at the bottom of the optical measuring head.
  • the portion of the bottom of the lens holder that is in contact with the lens to be tested is a ruby ring or a sapphire ring.
  • the image sensor is a CCD image sensor or a CMOS image sensor.
  • the main control cavity further comprises a wireless communication module that communicates with the server to transmit design data and measurement results.
  • the wireless communication module is based on a GSM, GPRS, 3G, LTE, Bluetooth or WiFi wireless communication protocol.
  • the main control cavity is a smart phone with a display screen.
  • the data and image processing control unit is a processor of a DSP chip, a microprocessor or a smart phone.
  • the optical measuring head with a single block structure can greatly reduce the volume of the device.
  • the operator only needs to operate with one hand.
  • the adjustment of the optical measuring head is completed during the glue or glue, and no subsequent adjustment and maintenance is required.
  • the complicated adjustment mechanism is eliminated, and the stability and reliability of the device are improved.
  • Figure 2 is a front view of the present invention
  • Figure 3 is a side view of the present invention.
  • FIG. 4 is a schematic structural view of an optical measuring head of the present invention.
  • Figure 5 is a schematic diagram of optical measurement of the present invention.
  • a hand-held lens power measurement device is characterized in that it comprises a main control cavity 2 and an optical measuring head 7, and the main control cavity 2 comprises The data and image processing control unit and the display screen 1, the main control cavity 2 and the optical measuring head 7 are fixedly connected together, and the optical measuring head 7 comprises a light source 15, a prism, a lens 9, a beam splitter 14, an annular diaphragm 17, The image sensor 10 and the lens holder 3, the image sensor 10, the ring diaphragm 17, and the beam splitter 14 are sequentially distributed from top to bottom on the optical measuring head 7.
  • optical elements within the optical measuring head 7 are bonded together by means of glue or glue.
  • the prism includes a reflective prism A16, a reflective prism B8, a reflective prism C13, and a reflective prism D11, a reflective prism
  • A16 is disposed at the right bottom corner of the optical measuring head 7, the light source 15 is disposed on the reflective prism A16, and the reflective prism B8 is disposed at the upper portion of the optical measuring head 7, and the left and right apex angles of the upper portion of the reflective prism B8 are both 45 degrees chamfered, reflecting
  • the prism C13 is disposed at the left bottom corner of the optical measuring head 7, the left apex angle of the lower portion of the reflecting prism C13 is 45 degrees chamfered, the reflecting prism D11 is disposed at the position of the image sensor 10, and the lens 9 is disposed at the reflecting prism B8 and the reflecting prism C13 Between the beam splitters 14 and the chamfers of the left apex angle of the lower portion of the reflecting prism C13 are disposed in parallel.
  • the prism further includes a connecting prism A12, a connecting prism B18 and a connecting prism C19, the connecting prism A12 is disposed between the reflecting prism B8 and the reflecting prism C13, and the connecting prism B18 is disposed between the beam splitter 14 and the annular diaphragm 17, The connecting prism C19 is disposed between the reflecting prism A16 and the reflecting prism D11.
  • the lens holder 3 is a hollow cylindrical structure provided at the bottom of the optical measuring head 7.
  • the portion of the bottom of the lens holder 3 that is in contact with the lens to be tested is a ruby ring or a sapphire ring.
  • the image sensor 10 is a CCD image sensor or a CMOS image sensor.
  • the main control cavity 2 further includes a wireless communication module that communicates with the server to transmit design data and measurement results.
  • the wireless communication module is based on GSM, GPRS, 3G, LTE, Bluetooth or WiFi wireless communication protocols.
  • the main control chamber 2 is a smart phone with a display screen.
  • the data and image processing control unit is a processor of a DSP chip, a microprocessor or a smart phone.
  • FIG. 5 is a schematic diagram of an optical measurement of the present invention.
  • the incident beam 22 converges on a point A on the optical axis 23, the surface 20 of the lens under test is perpendicular to the optical axis 23 and intersects at point 0, an annular stop 17 having a radius r and an image sensor 10 are located on the surface 20 of the lens under test 20
  • the optical axis 23 is respectively at point S and point C.
  • the lens surface 20 to be measured is a spherical surface having a radius of curvature R, at which time the reflected light beam 21 will converge on the point A' on the optical axis 23, and a circle having a radius c will be formed on the image sensor 10. Ring image.
  • This optical system is equivalent to the point A by reflecting the surface of the lens to be measured 20 into a point image A', wherein the object distance 1 and the image distance 1' can be expressed as:
  • equation (2) can be rewritten as:
  • the radius of curvature R of the lens surface 20 to be tested is:
  • n is the refractive index of the spectacle lens or glass mold to be tested.
  • the surface 20 to be tested is a cylindrical surface having a cylindrical surface such as a cylinder surface, a cylindrical surface, or a ring curved surface
  • the radius of curvature of the two orthogonal principal meridians is R1 and R2, respectively.
  • the image formed on the image sensor 10 is an elliptical ring whose radius of the long and short axes is cl and c2, respectively, and then the spherical degree of the spherical surface in the two principal meridians of the lens surface 20 to be tested is
  • the cylindrical degree of the surface 20 of the lens to be tested is: (9)
  • the cylinder axis position is the direction of the long axis of the elliptical ring.
  • the light beam emitted by the light source 15 is reflected by the reflective prism ⁇ 16, the reflective prism ⁇ 8 and the reflective prism C13 and propagates along the optical axis 23, and the lens 9 converts the light beam emitted from the light source 15 into a desired incident light beam.
  • 22, reflected by the beam splitter 14 and projected onto the surface 20 of the lens to be tested, and the light beam reflected back from the surface 20 to be tested passes through the beam splitter 14 and the annular diaphragm 17, and is reflected by the reflective prism D11 onto the image sensor 10.
  • An image is formed, and the image is processed to obtain a partial power of the partial area of the lens surface 20 to be contacted with the lens holder 3, and the measurement result is displayed on the display screen 1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Eyeglasses (AREA)

Abstract

提供了一种手持式镜片面焦度测量装置,其特征在于,包括主控腔体(2)和光学测量头(7),主控腔体包括数据与图像的处理控制单元和显示屏(1),主控腔体与光学测量头固定连接在一起,光学测量头包括光源(15)、棱镜、透镜(9)、分束器(14)、环形光阑(17)、图像传感器(10)和镜片支架(3),图像传感器、环形光阑和分束器依次从上往下分布在光学测量头上。这种手持式镜片面焦度测量装置基于光学反射法测量镜片表面的面焦度,测量车房眼镜镜片时无需将镜片下盘;采用单块整体结构的光学测量头可大大缩小装置体积,操作者只需要单手即可进行操作,同时光学测量头的装调在光胶或胶合时完成,不需要后续的装调维护,省去了复杂的调整机构,装置的稳定性和可靠性得以提高。

Description

手持式镜片面焦度测量装置 技术领域
[0001] 本发明涉及镜片面焦度测量装置, 尤其涉及一种手持式镜片面焦度测量装置。
技术背景
[0002] 在目前的车房眼镜镜片生产流程中, 服务器上的车房眼镜镜片设计软件根据订单的 要求选择合适基弯的半制片并计算出待加工表面的面形, 待加工表面包括球面、 柱面、 非球 面、 超环面以及自由曲面等。
[0003] 待加工的半制片首先通过上盘固定到小铁支架上, 然后将小铁支架固定在铣磨机的 工件轴上将待加工表面铣磨成所设计的面形, 再将小铁支架固定在抛光机的工件轴上抛光铣 磨后的表面, 然后使用激光打标机在抛光后的表面上打上隐形标记, 指明棱镜参考点位置和 柱镜轴位基准方向。 打标后的眼镜镜片通过下盘与小铁支架分离, 然后使用透射式焦度计测 量所加工镜片的透射焦度, 包括球镜度、 柱镜度和柱镜轴位等参数, 并与订单要求进行比较。 由于下盘后的眼镜镜片重新上盘后无法维持加工基准不变, 当测得焦度超出订单要求时, 所 加工的眼镜镜片无法进行面形修整而只能报废, 这大大增加了车房眼镜镜片的生产成本和加 工周期。
[0004] 上述的透射式焦度计只能测量镜片的透射焦度, 但透射焦度不仅受所加工表面影响, 同时也受镜片基弯面形质量的影响, 因此无法准确反映所加工表面的面形质量, 对于车房镜 片加工来说, 保证所加工的表面面形与设计面形一致极为重要。 现有的商业化仪器如 Automation & Robotics公司的 Focovision SR2禾 B Dual Lens Mapper通过测量镜片表面的面焦 度来控制镜片的表面面形质量。 Focovision SR2测量镜片表面单点的面焦度, 由于其桌面机 的设计, 无法检测带小铁支架的镜片, 也无法读取服务器上的设计面形与测量结果进行比较; Dual Lens Mapper无法测量固定在小铁支架上的镜片。 另外也有基于三坐标仪原理的机械扫 描式面形测量装置, 可直接测量未下盘镜片加工表面的三维面形, 可与设计面形进行比较得 到加工误差, 但缺点是测量速度很慢, 测量一片镜片需要 10 分钟左右, 无法满足车房的测 量要求。 同时这些仪器都具有体积庞大、 移动不变的缺点。
[0005]
发明内容
[0006] 本发明针对上述问题, 提出了一种手持式镜片面焦度测量装置。
[0007] 为了实现上述目的, 本发明通过以下方案实现: 一种手持式镜片面焦度测量装置, 其特征在于, 包括主控腔体和光学测量头, 所述的主控腔 体包括数据与图像的处理控制单元和显示屏, 主控腔体与光学测量头固定连接在一起, 所述 的光学测量头包括光源、 棱镜、 透镜、 分束器、 环形光阑、 图像传感器和镜片支架, 所述的 图像传感器、 环形光阑和分束器依次从上往下分布在光学测量头上。
[0008] 作为优选, 所述的光学测量头内的光学元件通过光胶或胶合结合在一起。
[0009] 作为优选, 所述的棱镜包括反射棱镜 A、 反射棱镜 B、 反射棱镜 C和反射棱镜 D, 所述的反射棱镜 A设置在光学测量头的右侧底角, 所述的光源设置在反射棱镜 A上, 所述 的反射棱镜 B设置在光学测量头的上部, 反射棱镜 B上部的左右顶角都为 45度倒角, 所述 的反射棱镜 C设置在光学测量头的左侧底角, 反射棱镜 C下部的左顶角为 45度倒角, 所述 的反射棱镜 D设置在图像传感器的位置, 所述的透镜设置在反射棱镜 B和反射棱镜 C之间, 所述的分束器与反射棱镜 C下部的左顶角的倒角平行设置。
[0010] 作为优选, 所述的棱镜还包括连接棱镜 A、 连接棱镜 B 和连接棱镜 C, 所述的连接 棱镜 A设置在反射棱镜 B与反射棱镜 C之间, 所述的连接棱镜 B设置在分束器和环形光阑 之间, 所述的连接棱镜 C设置在反射棱镜 A与反射棱镜 D之间。
[0011] 作为优选, 所述的镜片支架为中空的圆筒结构, 设置在光学测量头的底部。
[0012] 作为优选, 所述镜片支架的底部与被测镜片接触的部分为红宝石环或蓝宝石环。
[0013] 作为优选, 所述的图像传感器为 CCD图像传感器或 CMOS图像传感器。
[0014] 作为优选, 所述的主控腔体还包括与服务器进行通讯传输设计数据和测量结果的无 线通讯模块。
[0015] 作为优选, 所述的无线通讯模块是基于 GSM、 GPRS, 3G、 LTE、 蓝牙或 WiFi无线 通讯协议。
[0016] 作为优选, 所述的主控腔体为带显示屏的智能手机。
[0017] 作为优选, 所述的数据与图像的处理控制单元为 DSP 芯片、 微处理器或智能手机的 处理器。
[0018] 本发明的有益效果如下:
1、 基于光学反射法测量镜片表面的面焦度, 测量车房眼镜镜片时无需将镜片下盘;
2、 通过读取服务器上的镜片设计面形计算出理论面焦度, 与测量得到的实际面焦度进行比 较, 以判断镜片表面的加工质量, 若测量结果超出允许范围时, 将仍处于上盘状态的镜片放 回到表面加工设备上进行面形修整;
3、 采用智能手机作为主控腔体, 可提高装置的便携性, 智能手机的 LED补光灯、 CMOS图 像传感器、 显示屏、 无线通讯模块可直接得到利用;
4、 采用单块整体结构的光学测量头可大大縮小装置体积, 操作者只需要单手即可进行操作, 同时光学测量头的装调在光胶或胶合时完成, 不需要后续的装调维护, 省去了复杂的调整机 构, 装置的稳定性和可靠性得以提高。
[0019] 附图说明
[0020] 图 1为本发明结构示意图;
图 2为本发明的主视图;
图 3为本发明的侧视图;
图 4为本发明光学测量头的结构示意图;
图 5为本发明的光学测量原理图;
图中: 1.显示屏, 2.主控腔体, 3.镜片支架, 4.眼镜镜片, 5.合金, 6.小铁支架, 7.光学测量 头, 8.反射棱镜 B, 9.透镜, 10.图像传感器, 11.反射棱镜 D, 12.连接棱镜 A, 13.反射棱镜 C, 14.分束器, 15.光源, 16.反射棱镜 A, 17.环形光阑, 18.连接棱镜 B, 19.连接棱镜 C, 20. 被测镜片表面, 21.反射光束, 22.入射光束, 23.光轴。
[0021]
具体实 式
[0022] 下面结合附图对本发明的实施例进行进一步详细说明:
如图 1、 2、 3、 4所示, 本发明提到的一种手持式镜片面焦度测量装置, 其特征在于, 包括 主控腔体 2和光学测量头 7, 主控腔体 2包括数据与图像的处理控制单元和显示屏 1, 主控 腔体 2与光学测量头 7固定连接在一起, 光学测量头 7包括光源 15、 棱镜、 透镜 9、 分束器 14、 环形光阑 17、 图像传感器 10和镜片支架 3, 图像传感器 10、 环形光阑 17和分束器 14 依次从上往下分布在光学测量头 7上。
[0023] 光学测量头 7内的光学元件通过光胶或胶合结合在一起。
[0024] 棱镜包括反射棱镜 A16、 反射棱镜 B8、 反射棱镜 C13 和反射棱镜 Dll, 反射棱镜
A16设置在光学测量头 7的右侧底角, 光源 15设置在反射棱镜 A16上, 反射棱镜 B8设置 在光学测量头 7的上部, 反射棱镜 B8上部的左右顶角都为 45度倒角, 反射棱镜 C13设置 在光学测量头 7的左侧底角, 反射棱镜 C13下部的左顶角为 45度倒角, 反射棱镜 D11设置 在图像传感器 10的位置, 透镜 9设置在反射棱镜 B8和反射棱镜 C13之间, 分束器 14与反 射棱镜 C13下部的左顶角的倒角平行设置。 [0025] 棱镜还包括连接棱镜 A12、 连接棱镜 B18和连接棱镜 C19, 连接棱镜 A12设置在反 射棱镜 B8与反射棱镜 C13之间, 连接棱镜 B18设置在分束器 14和环形光阑 17之间, 连接 棱镜 C19设置在反射棱镜 A16与反射棱镜 D11之间。
[0026] 镜片支架 3为中空的圆筒结构, 设置在光学测量头 7的底部。
[0027] 镜片支架 3的底部与被测镜片接触的部分为红宝石环或蓝宝石环。
[0028] 图像传感器 10为 CCD图像传感器或 CMOS图像传感器。
[0029] 主控腔体 2还包括与服务器进行通讯传输设计数据和测量结果的无线通讯模块。
[0030] 无线通讯模块是基于 GSM、 GPRS、 3G、 LTE、 蓝牙或 WiFi无线通讯协议。
[0031] 主控腔体 2为带显示屏的智能手机。
[0032] 数据与图像的处理控制单元为 DSP芯片、 微处理器或智能手机的处理器。
[0033] 光学测量头内部的元件通过光胶或胶合结合在一起。
[0034] 如图 5所示为本发明的光学测量原理图。 其中入射光束 22会聚于光轴 23上的一点 A, 被测镜片表面 20与光轴 23垂直并交于点 0, 一个半径为 r的环形光阑 17和一个图像传感 器 10位于被测镜片表面 20的同一侧, 分别交光轴 23于点 S和点 C, 入射光束 22到达被测 镜片表面 20后被反射, 反射光束 21经过环形光阑 17后在图像传感器 10上形成图像。
[0035] 首先假设被测镜片表面 20是一个曲率半径为 R的球面, 此时反射光束 21将会聚于 光轴 23上的点 A', 同时在图像传感器 10上会形成一个半径为 c的圆环图像。 此光学系统 相当于点物 A通过反射被测镜片表面 20成点像 A', 其中物距 1和像距 1' 可表示为:
1' = - (θΞ + SC + CA' (2) 距离已知<
Figure imgf000006_0001
Figure imgf000006_0002
因此式 (2) 可以重写为:
(4)
Figure imgf000006_0003
Figure imgf000006_0004
因此, 被测镜片表面 20的曲率半径 R为:
Figure imgf000007_0001
Figure imgf000007_0002
其中 n是被测眼镜镜片或玻璃模具的折射率。
[0037] 当被测镜片表面 20 是柱面、 球柱面、 环曲面等具有柱镜度的表面时, 其在两个正交 的主子午面内的曲率半径分别为 R1和 R2, 此时在图像传感器 10上形成的图像是一个椭圆 环, 其长短轴半径分别为 cl和 c2, 那么被测镜片表面 20的两个主子午面内的球镜度 SI和
Figure imgf000007_0003
被测镜片表面 20的柱镜度即为:
Figure imgf000007_0004
(9)
而柱镜轴位即为椭圆环长轴的方向。
[0038] 在测量过程中, 光源 15发射的光束被反射棱镜 Α16、 反射棱镜 Β8和反射棱镜 C13 所反射而沿着光轴 23传播, 透镜 9将光源 15发出的光束转变为所需要的入射光束 22, 通 过分束器 14反射后投射到被测镜片表面 20上, 由被测镜片表面 20反射回的光束通过分束 器 14和环形光阑 17后, 由反射棱镜 D11反射到图像传感器 10上形成图像, 通过分析处理 此图像得到被测镜片表面 20与镜片支架 3所接触的局部区域的面焦度, 测量结果显示于显 示屏 1上。
[0039] 以上所述的仅是本发明的优选实施方式, 应当指出, 对于本技术领域中的普通技术 人员来说, 在不脱离本发明核心技术特征的前提下, 还可以做出若干改进和润饰, 这些改进 和润饰也应视为本发明的保护范围。

Claims

WO 2015/051573 权 利 要 求 书 PCT/CN2013/087640
1. 一种手持式镜片面焦度测量装置, 其特征在于, 包括主控腔体 (2) 和光学测量头 (7), 所述的主控腔体 (2) 包括数据与图像的处理控制单元和显示屏 (1), 主控腔体 (2) 与光学 测量头 (7) 固定连接在一起, 所述的光学测量头 (7) 包括光源 (15)、 棱镜、 透镜 (9)、 分束器 (14)、 环形光阑 (17)、 图像传感器 (10) 和镜片支架 (3), 所述的图像传感器
(10)、 环形光阑 (17) 和分束器 (14) 依次从上往下分布在光学测量头 (7) 上。
2. 根据权利要求 1 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的光学测量头 (7) 内的光学元件通过光胶或胶合结合在一起。
3. 根据权利要求 1 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的棱镜包括反射 棱镜 A (16)、 反射棱镜 B (8)、 反射棱镜 C (13) 和反射棱镜 D (11), 所述的反射棱镜 A
(16) 设置在光学测量头 (7) 的右侧底角, 所述的光源 (15) 设置在反射棱镜 A (16) 上, 所述的反射棱镜 B (8) 设置在光学测量头 (7) 的上部, 反射棱镜 B (8) 上部的左右顶角 都为 45度倒角, 所述的反射棱镜 C (13) 设置在光学测量头 (7) 的左侧底角, 反射棱镜 C
(13) 下部的左顶角为 45 度倒角, 所述的反射棱镜 D (11) 设置在图像传感器 (10) 的位 置, 所述的透镜 (9) 设置在反射棱镜 B (8) 和反射棱镜 C (13) 之间, 所述的分束器 (14) 与反射棱镜 C (13) 下部的左顶角的倒角平行设置。
4. 根据权利要求 1 或 3 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的棱镜还包 括连接棱镜 A (12)、 连接棱镜 B (18) 和连接棱镜 C (19), 所述的连接棱镜 A (12) 设置 在反射棱镜 B (8) 与反射棱镜 C (13) 之间, 所述的连接棱镜 B (18) 设置在分束器 (14) 和环形光阑 (17) 之间, 所述的连接棱镜 C (19) 设置在反射棱镜 A (16) 与反射棱镜 D
(11) 之间。
5. 根据权利要求 1 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的镜片支架 (3) 为中空的圆筒结构, 设置在光学测量头 (7) 的底部。
6. 根据权利要求 5所述的手持式镜片面焦度测量装置, 其特征在于, 所述镜片支架 (3) 的 底部与被测镜片接触的部分为红宝石环或蓝宝石环。
7. 根据权利要求 3 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的图像传感器 (10) 为 CCD图像传感器或 CMOS图像传感器。
8. 根据权利要求 1 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的主控腔体 (2) 还包括与服务器进行通讯传输设计数据和测量结果的无线通讯模块。
9. 根据权利要求 8 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的无线通讯模块 是基于 GSM、 GPRS, 3G、 LTE、 蓝牙或 WiFi无线通讯协议, 所述的主控腔体 (2) 为带显 示屏的智能手机。
10. 根据权利要求 1 所述的手持式镜片面焦度测量装置, 其特征在于, 所述的数据与图像的 处理控制单元为 DSP芯片、 微处理器或智能手机的处理器。
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