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WO2012088684A1 - Dispositif de détection de luminosité ambiante - Google Patents

Dispositif de détection de luminosité ambiante Download PDF

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Publication number
WO2012088684A1
WO2012088684A1 PCT/CN2010/080467 CN2010080467W WO2012088684A1 WO 2012088684 A1 WO2012088684 A1 WO 2012088684A1 CN 2010080467 W CN2010080467 W CN 2010080467W WO 2012088684 A1 WO2012088684 A1 WO 2012088684A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
glass ball
cover body
disposed
transparent glass
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2010/080467
Other languages
English (en)
Chinese (zh)
Inventor
邹高迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/CN2010/080467 priority Critical patent/WO2012088684A1/fr
Publication of WO2012088684A1 publication Critical patent/WO2012088684A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • 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
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • 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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light

Definitions

  • the invention relates to an ambient brightness detecting device. Background technique
  • illuminance detection is the luminous flux per unit area. If it is only used to judge the total amount of luminescence or light efficiency of a illuminant and the illumination level of a certain area, it is feasible, but the illuminance and human visual perception are not complete.
  • human visual illumination is also related to the color depth of the object and the flatness of the surface of the object, that is, the reflection and absorption of light with the object and the physical shape of the surface of the object. The angle is related to the scattering of light. Brightness is the degree of human visual brightness.
  • the optical imaging detection method can truly represent the light environment that people feel, and the light sensing and the market are currently using Most of the control devices use photoresistors, photocells, photodiodes, phototransistors, etc., directly on the surface of the object or directly detect the incident light.
  • the direct illumination of the incident light is the illuminance value, directly detecting the surface of the object.
  • the photosensitive device is too close, a point of the object is detected.
  • the light near the photosensitive device is detected by various reflections, the mixed value of the refraction and the direct light, and the brightness of the human eye is not represented.
  • the existing optical imaging methods are methods using single or multiple optical lenses.
  • the optical lens has complicated process, high processing difficulty, and assembly in order to meet the precision requirements.
  • the precision of assembly is also very high, especially the assembly of multiple lenses, precision and process requirements are higher.
  • the technical problem to be solved by the present invention is that there is an optical lens as an optical imaging unit.
  • the high production cost and high precision of assembly precision provide a new environmental brightness detection device, which reduces production cost and assembly precision.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing an environmental brightness detecting device, comprising: a transparent glass ball, a cover body, a seat body, a photosensitive element, a glass ball positioning device, and an image acquisition light shielding device;
  • the cover body is opaque, the cover body comprises an upper and lower open end, the base body comprises an inner cavity, and the inner side of the lower open end of the cover body is matched with the outer side of the seat body; the transparent glass ball is positioned by the glass ball The device is positioned on the open end of the cover body; the cover body and the base body further comprise a matching positioning structure;
  • the photosensitive element is disposed in an inner cavity of the housing and located in an imaging area behind the focus of the transparent glass ball;
  • the image capture shading device includes a light blocking member between the transparent glass ball and the photosensitive member and a light passing region disposed on the light blocking member, the light blocking member blocking entry into the cover through the transparent glass ball.
  • the stray light enters the internal cavity of the housing to reach the photosensitive element, the light passing area is located on the optical path behind the focus of the transparent glass ball, and the imaged concentrated light of the transparent glass ball passes through the light passing area .
  • the glass ball positioning device comprises: an inner side of the open end of the cover body and a hollow compression elastic member disposed between the transparent glass ball and the seat body; or
  • the invention includes an annular positioning surface disposed on the open end of the cover body and elastically surrounding the transparent glass ball; or includes an inner side of the open end of the cover body and a threaded or tight fit with the inner side of the cover body and the transparent The glass ball is pressed against a positioning ring on the inside of the open end of the cover.
  • the light passing region is a through hole or a window through which light passes;
  • the light blocking member is a light blocking wall of an inner cavity of the base body, and the light passing region is disposed at the light blocking a central portion above the wall; or
  • the light shielding member includes an inner cavity cavity wall of the base body and a light shielding sheet disposed at an upper opening of the cavity wall, the light shielding sheet including a light shielding region and the through hole disposed in a middle portion of the light shielding region Light zone.
  • the mating positioning structure is as follows: a buckle and a card slot disposed between the inner side surface of the cover body and the outer side surface of the outer cover; or a seat body disposed at the seat body An outer thread groove corresponding to a threaded hole and a screw disposed on a side of the cover body to cooperate with the thread groove, the cover body and the seat body being engaged with the threaded hole by the screw, and the screw end and the thread groove
  • the mating connection is fixed; or includes an external thread disposed on the outer side of the outer sleeve and an inner thread correspondingly disposed on the inner side of the cover body, the cover body and the seat body are matched by the inner and outer threads
  • the connection is fixed; or the inner side of the cover body is tightly fitted to the outer side surface of the seat body.
  • a PCB board is included, which is connected to the photosensitive member and disposed in the internal cavity of the holder.
  • a fixing base is included; and the fixing base is provided on a rear side of the bottom of the housing.
  • the fixing base and the lamp tube clamp are included; the fixing base is disposed on the rear side of the bottom of the base body, and the bottom of the fixing base is provided with a card slot; The card slot is engaged with the fixing seat.
  • the transparent glass ball is spherical or ellipsoidal.
  • the cover body and the seat body are both cylindrical.
  • the present invention uses a transparent glass ball instead of an optical lens to realize optical imaging, and then uses a photosensitive element to perform brightness detection on the formed optical real image, thereby realizing ambient light brightness detection consistent with the human eye's perception of ambient light;
  • the shading device is obtained by setting the adjustment structure and imaging of the cover body and the seat body, so that the detecting device can accurately acquire the imaging light of the target to be measured, and shield the undesired scattered light, thereby improving the detection accuracy;
  • FIG. 1 is a perspective structural view showing an embodiment of an ambient light detecting device of the present invention.
  • Figure 2 is a side elevational view of an embodiment of the ambient brightness detecting device of the present invention.
  • Figure 3 is a cross-sectional view showing an embodiment of the ambient brightness detecting device of the present invention.
  • Figure 4 is a partial cross-sectional view showing an embodiment of a glass ball positioning device in the ambient brightness detecting device of the present invention.
  • Fig. 5 is a partial cross-sectional view showing another embodiment of the glass ball positioning device in the environmental brightness detecting device of the present invention.
  • Figure 6 is a cross-sectional view showing an embodiment of an image capturing shading device in the ambient brightness detecting device of the present invention. detailed description
  • the ambient brightness detecting device of the embodiment includes: a cover body 1, a base body 2, a transparent glass ball 3, a light shielding sheet 4, a photosensitive member 5, a PCB board 6, a fixing base 7, and a lamp tube.
  • the PCB board 6 is connected to the photosensitive element 5 and disposed in the internal cavity 21.
  • the PCB board 6 may be disposed at other structural positions of the housing 2 outside the internal cavity 21, Even if the PCB board 6 is separated from the ambient brightness detecting device, and the PCB board 6 is connected to the photosensitive member 5 in use, the object of the present invention can be achieved.
  • the inner side of the lower end of the cover body 1 is matched with the outer side of the base body 2, and the cover body 1 and the base body 2 are positioned and engaged by the positioning and matching structure.
  • the positioning and mating structure may include but not limited to the following structures:
  • the cover body 1 and the base body 2 are fixedly connected by a snapping manner.
  • a buckle can be arranged on the inner side surface of the cover body 1, and a card corresponding to the buckle is arranged on the side of the base body 2 correspondingly.
  • the slot body, the cover body 1 and the base body 2 are snap-fitted by the buckle and the card slot; or vice versa, the card body 1 is provided with a card slot on the inner side of the cover body 1, corresponding to the side of the base body 2 being provided with the card slot
  • the buckle body, the cover body 1 and the base body 2 are snap-fitted by the buckle and the card slot.
  • a threaded groove is arranged on the outer side of the seat body 2, and a threaded hole is formed on the side of the cover body 1 to cooperate with the thread groove.
  • the cover body 1 and the seat body 2 are engaged with the threaded hole by the screw 9, and the end of the screw 9
  • the head is fixedly coupled to the thread groove.
  • the position between the cover 1 and the base 2 can be adjusted by using this positioning fit structure.
  • External thread is arranged on the outer side of the seat body 2, corresponding to the outer thread on the inner side of the cover body 1.
  • the mating internal thread, the cover body 1 and the seat body 2 are fixed by the internal and external threaded joints. When the positioning fit structure is adopted, the position between the cover body 1 and the seat body 2 can be adjusted.
  • the inner side surface of the cover body 1 and the outer side surface of the seat body 2 adopt a tight fit structure. When the positioning structure is used, the position between the cover 1 and the base 2 is fixed.
  • the transparent glass ball 3 is positioned at the upper open end of the cover 1 by a glass ball positioning device.
  • the glass ball positioning device may take the form including, but not limited to, the following:
  • the glass ball positioning device includes an inner side of the open end of the cover body 1 and a hollow pressure elastic member 14 disposed between the transparent glass ball 3 and the base body 2.
  • the hollow pressure elastic member 14 can be used as Cylindrical compression springs, ring rubber columns, etc.
  • the glass ball positioning device comprises an annular positioning surface disposed on the open end of the cover body 1 and elastically surrounding the transparent glass ball 3, and the transparent glass ball 3 is pressed into the annular positioning surface for positioning.
  • the glass ball positioning device comprises an inner side of the open end of the cover body 1 and a positioning ring 15, and the positioning ring 15 is screwed or tightly fitted with the inner side of the cover body 1, and the transparent glass ball 3 is pressed against the cover body. 1 inside the open end.
  • the photosensitive member 5 is disposed in the inner cavity 21 of the housing 2 and is located in the imaging area behind the focus of the transparent glass sphere 3 to receive the reflected light of the object to be measured focused by the transparent glass sphere 3.
  • the image-obtaining light-shielding means includes a light-shielding member between the transparent glass ball 3 and the photosensitive member 5 and a light-passing region 41 provided on the light-shielding member.
  • the light shielding member functions to prevent stray light entering the inside of the cover body 1 through the transparent glass ball 3 from entering the internal cavity 21 of the seat body to reach the photosensitive member 5.
  • the light passing region is located on the focused light path behind the focus of the transparent glass ball 3, and is transparent. The imaged collected light of the glass sphere passes through the light passing region 41 to the photosensitive member 5.
  • the imaging light of the target is passed through the light-passing area, and the clear glass ball 3 and the light-passing area of the image-obtaining light-shielding device can be realized by the adjustable positioning and matching structure of the cover body 1 and the seat body 2. The distance between them is guaranteed.
  • the fixed positioning and matching structure of the cover 1 and the base 2 can be adopted to meet the measurement requirements of the predetermined measurement conditions, and the object of the present invention can also be achieved.
  • the imaging acquisition shading device may take the form including, but not limited to, the following: 1. As shown in FIG. 6, the light-shielding member is a light-shielding wall of the inner cavity 21 of the base body 2, and the light-passing portion 41 is disposed at a central portion of the upper portion of the light-shielding wall (in other embodiments, light passing through may also be adopted). Window structure).
  • the light shielding member includes a cavity wall of the inner cavity 21 of the base 2 and a light shielding sheet 4 disposed at an upper opening of the cavity wall, the light shielding sheet 4 including a light shielding area and disposed in the middle of the light shielding area
  • the light passing area 41, the light passing area 41 may adopt a through hole or a window structure through which light is passed.
  • the fixing base 7 is fixed to the bottom rear side of the base body 2, and at the bottom is provided with at least one pair of card slots 11, and the left and right portions of the lamp tube clamp 8 are respectively engaged with the fixing base 7 through the card slots 11.
  • the purpose of the present invention can be achieved without providing the fixing base 7 and the lamp holder 8, or only the fixing base 7, and not the lamp holder 8.
  • the transparent glass sphere 3 can be spherical or ellipsoidal. Since the transparent glass ball 3 is a glass having a thick center and a thin edge, it functions as a condensing function and functions as a convex lens. When the ambient brightness detecting device is in operation, since the cover 1 is opaque and the upper end is open, ambient light illuminates the end surface of the transparent glass ball 3 exposing the cover 1, and is then concentrated by the transparent glass ball 3 to focus and pass.
  • the central through hole of the light shielding sheet 4 is incident on the surface of the photosensitive member 5; since the photosensitive member 5 has a characteristic of being sensitive to light, the change in the brightness of the ambient light causes a change in its resistance value, thereby causing a voltage change at both ends thereof, and thus the PCB board 6
  • the current ambient light level can be calculated from the voltage change of the photosensitive element 5.
  • the cover 1 and the base 2 have a cylindrical structure.
  • the cover 1 and the base 2 may adopt other structures, such as a prismatic structure, to achieve the object of the present invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

L'invention porte sur un dispositif de détection de luminosité ambiante, lequel dispositif comprend une bille en verre transparente (3), un capot (1), une base (2), un composant photosensible (5), un dispositif de positionnement pour la bille en verre et un dispositif d'assombrissement pour l'acquisition d'image. Le capot (1) est opaque, et comprend des extrémités ouvertes supérieure et inférieure. La base (2) comprend une cavité interne (21). Le coté interne de l'extrémité ouverte inférieure du capot est manchonné sur le coté externe de la base, et des structures de positionnement d'accouplement sont disposées entre le capot et la base. Le composant photosensible est disposé dans la zone de réalisation d'image, qui est disposée dans la cavité interne et située derrière le foyer de la bille en verre transparente. Le dispositif de positionnement est utilisé pour positionner la bille en verre transparente sur l'extrémité ouverte supérieure du capot. Le dispositif d'assombrissement pour l'acquisition d'image comprend une zone de transmission (41) sur le composant d'assombrissement et un composant d'assombrissement (4) disposé entre la bille en verre transparente et le composant sensible à la lumière. Le dispositif de détection peut réaliser une détection de luminosité ambiante, qui est cohérente avec l'effet de perception des yeux humains pour la lumière ambiante. Le dispositif présente des avantages de faible coût et d'installation et d'utilisation faciles.
PCT/CN2010/080467 2010-12-29 2010-12-29 Dispositif de détection de luminosité ambiante Ceased WO2012088684A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/080467 WO2012088684A1 (fr) 2010-12-29 2010-12-29 Dispositif de détection de luminosité ambiante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/080467 WO2012088684A1 (fr) 2010-12-29 2010-12-29 Dispositif de détection de luminosité ambiante

Publications (1)

Publication Number Publication Date
WO2012088684A1 true WO2012088684A1 (fr) 2012-07-05

Family

ID=46382201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/080467 Ceased WO2012088684A1 (fr) 2010-12-29 2010-12-29 Dispositif de détection de luminosité ambiante

Country Status (1)

Country Link
WO (1) WO2012088684A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252420A (ja) * 1985-09-02 1987-03-07 Matsushita Electric Ind Co Ltd 輝度計測装置
US5497229A (en) * 1993-05-28 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photometering apparatus having a split light receiving device
CN1789932A (zh) * 2004-12-15 2006-06-21 亚洲光学股份有限公司 亮度检测仪及其检测方法
CN101625263A (zh) * 2008-07-07 2010-01-13 杭州浙大三色仪器有限公司 亮度测量装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252420A (ja) * 1985-09-02 1987-03-07 Matsushita Electric Ind Co Ltd 輝度計測装置
US5497229A (en) * 1993-05-28 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photometering apparatus having a split light receiving device
CN1789932A (zh) * 2004-12-15 2006-06-21 亚洲光学股份有限公司 亮度检测仪及其检测方法
CN101625263A (zh) * 2008-07-07 2010-01-13 杭州浙大三色仪器有限公司 亮度测量装置

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