[go: up one dir, main page]

WO1991004469A1 - Dosimetre pour mesurer les rayonnements ultraviolets - Google Patents

Dosimetre pour mesurer les rayonnements ultraviolets Download PDF

Info

Publication number
WO1991004469A1
WO1991004469A1 PCT/GB1990/001397 GB9001397W WO9104469A1 WO 1991004469 A1 WO1991004469 A1 WO 1991004469A1 GB 9001397 W GB9001397 W GB 9001397W WO 9104469 A1 WO9104469 A1 WO 9104469A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultraviolet radiation
dosimeter
user
sensor
time
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/GB1990/001397
Other languages
English (en)
Inventor
Mark Lincoln
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.)
RUGER DESIGN Ltd
Original Assignee
RUGER DESIGN Ltd
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
Priority claimed from GB898920586A external-priority patent/GB8920586D0/en
Priority claimed from GB898922888A external-priority patent/GB8922888D0/en
Application filed by RUGER DESIGN Ltd filed Critical RUGER DESIGN Ltd
Publication of WO1991004469A1 publication Critical patent/WO1991004469A1/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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light

Definitions

  • This invention relates to an ultraviolet radiation dosimeter which can used, inter alia, as a sunbathing aid to assist a sunbather to achieve a healthy tan.
  • sun protection products e.g. suntan lotions and creams
  • sun protection product e.g. suntan lotions and creams
  • an ultraviolet radiation dosimeter comprising a sensor for producing a signal representative of the intensity of ultraviolet radiation received by the sensor, means for entering a parameter corresponding to the type of skin of a user, means for entering a parameter corresponding to the protection factor of a sun protection product used by a user, and display means for indicating an estimate of the time suitable for exposure of such skin treated with such sun protection product to the sensed ultraviolet radiation.
  • Tanning increases a sunbather's tolerance to further doses of ultraviolet radiation and, accordingly, the dosimeter advantageously further comprises means for entering a parameter corresponding to a degree of previously accumulated tan of a user.
  • the dosimeter comprises means for calculating an estimate of a maximum permissible dose of ultraviolet radiation according to the entered parameters and for indicating on the display means a time determined from the estimate of the maximum permissible dose and the intensity of ultraviolet radiation sensed by the sensor.
  • the dosimeter includes means whereby the time displayed by the display means changes as exposure continues in order to give an indication of the time remaining.
  • the dosimeter includes means whereby the time displayed by the display means takes into account variations in radiation intensity sensed by the sensor as exposure continues.
  • the radiation responsible for causing reddening (erythema) of the skin is predominantly UV-B radiation and, accordingly, the sensor is preferably responsive to radiation predominantly in the UV-B bandwith.
  • the dosimeter further comprises warning means for alerting a user when the time suitable for exposure is about to be or has been exceeded.
  • the dosimeter may be packaged in a casing resembling a pocket calculator and the aforesaid parameters may be entered by simple manual operation of buttons.
  • the user may press a start button and the calculated time for exposure will then show on the display means.
  • the displayed time may alter as exposure continues to indicate the time remaining having regard to the sensed radiation at any particular moment, and when the time remaining reaches zero, an alarm, such as a buzzer, may sound.
  • an alarm such as a buzzer
  • the user will then know it is time to turn over or seek shade.
  • the time calculated by the dosimeter may be used as a guide to the time the user can safely remain exposed to the sun.
  • Figure 1 is perspective view of one embodiment of an ultraviolet radiation dosimeter according to the present invention
  • Figure 2 is a block circuit diagram of the dosimeter of Figure 1
  • FIG 3 is a plan view of the display of the dosimeter of Figure 1, on an enlarged scale.
  • the ultraviolet radiation dosimeter shown therein is intended for use as a sunbathing aid and comprises a casing 10 having an openable coyer 11 hinged to the front face of the casing 10.
  • a sensor 12 comprising a photodiode and filter system is provided on the front face of the casing 10 so as to be exposed regardless of whether the cover 11 is open or closed. Beneath the cover 11, there is a key pad 13 and a liquid crystal display 14.
  • the filter system is selected so that the sensor 12 produces an output representative of the intensity of radiation responsible for causing reddening
  • the key pad 13 includes a mode button 15, a start button 16, a stop button 17, and a "+ 11 18.
  • the dosimeter can also operate as a real-time clock (and possibly also an alarm) , and in this case the mode button will enable a user to select real-time operation or operation as the sunbathing aid. It will also enable a user to enter appropriate parameters which have a bearing on the time for which the user may safely remain exposed to the sun. These include the skin type of the user, the protection factor of a sun protection product, e.g. a suntan lotion or cream, applied to a user's body, and a suntan accumulation factor.
  • a sun protection product e.g. a suntan lotion or cream
  • the dosimeter also comprises a pulse generator 19 and a microprocessor 20 both of which are powered by a battery 21.
  • the pulse generator 19 is responsive to the output of the sensor 12 and is designed so as to emit a string of pulses having a pulse rate which is proportional to the local intensity of erythemally active radiation sensed by the sensor 12. Each pulse, therefore, represents a quantum packet of energy.
  • the microprocessor 20 calculates an estimate of time a user may remain exposed to the sun before receiving a minimum erythemal dose (1 MED) based on information entered via the key pad 13 and the local intensity of erythemally active radiation sensed by the sensor 12.
  • the MED is a medically recognised estimate of the energy density that will result in eventual perceptible reddening (erythema) of the skin. For "average" fair skin the limit in energy density is approximately 15 mJ/sq.cm.
  • the dosimeter is designed to accommodate these variations by using the standard classifications for skin type, estimates of the degree of previously; accumulated tan and the protection factor of the sun protection product used. This information is entered by pressing the operating buttons 15 to 18 in an appropriate manner.
  • the dosimeter may, for example, accommodate five of the recognised skin types ranging from Type 1 (redhead) to Type 5 (semi-tanned oriental) .
  • the classification description will be provided with the operating instructions for the dosimeter.
  • the user enters his/her skin type number using the mode button 15 and the "+" button 18.
  • the appropriate icon 22 (see Figure 3) for skin type will flash on the display 14 as this information is entered and the skin type entered will appear in place of the time display 23.
  • the dosimeter contains, in the non-volatile memory of its microprocessor 20, accepted estimates of the 1 MED energy density factor for each skin type.
  • the dosimeter may accommodate sun protection factors from 1 (no protection used) to say 24 (which gives a very high level of protection) .
  • This number is provided by the manufacturers of all proprietary sun protection products and indicates the attenuation factor that a recommended thickness of application will impose on the incident UV-B radiation. It implies that users will be able to extend their exposure to the sun by that factor times longer than should be endured by the unprotected skin.
  • the user enters the sun protection factor of the product he/she is using using the mode button 15 and the "+" button 18.
  • the appropriate icon 24 for sun protection factor will flash on the display 14 as this information is entered and the protection factor entered will appear in place of the time display 23.
  • Tanning increases a sunbather's tolerance to further doses of radiation and consequently it is preferable that the dosimeter should be able to take account of any previously accumulated tan. Provision may therefore be made for a user to enter an estimate of the number of days which have recently been spent acquiring a radiation exposure of 1 MED/day using the mode button 15 and the "+" button 18 and this information may be used by the dosimeter to calculate a day accumulation factor by which it can modify the estimate of the MED limit for the current user.
  • the appropriate icon 25 for day accumulation factor will flash on the display 14 as this information is entered and the number of days entered will appear in place of the time display 23.
  • the microprocessor 20 calculates an estimate of the maximum permissible dose for the user by multiplying the "average" MED by the skin type energy density factor, the sun protection factor and the day accumulation factor and stores the result of this calculation as a number corresponding to the number of sensor pulses equating to such a dose, in a digital counter module.
  • the microprocessor 20 receives a pulse from the pulse generator 19, a unit is subtracted from the counter and the number remaining in the counter is next used to estimate the remaining permissible sunbathing time. This calculation is performed at frequent intervals by obtaining a digital figure for the current pulse rate and performing a calculation to reveal the remaining sunbathing time.
  • the microprocessor 20 energises a warning device, such as a buzzer 26 (see Figure 2) , for a limited time to alert the user.
  • a warning device such as a buzzer 26 (see Figure 2)
  • the stop button 17 may be pressed to stop the count prematurely or with appropriate circuitry may be pressed to pause the count while a user takes temporarily to the shade.
  • the dosimeter described above is given by way of example only and various modifications will be apparent to persons skilled in the art without departing from the scope of the invention.
  • the dosimeter may simply sense the intensity of radiation at a specific instant when an appropriate button, e.g. a start button, is depressed and display the safe exposure time for a user having regard to the intensity of radiation at the sensed moment and to an entered skin type and protection product protection factor. The user will then take a note of the time displayed and can use this as a guide to the time he/she can remain exposed to the sun.
  • the dosimeter could be used with artificial suntanning devices, such as sun lamps and sun beds, and in this case could be built into the device. Indeed, the dosimeter could be arranged to switch off the sun lamp or sun bed when the safe exposure time is reached or exceeded. However, when used with artificial suntanning devices, the response of the sensor will need to be different from that used to sense the intensity of radiation received from the sun.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Un dosimètre pour mesurer les rayonnements ultraviolets comprend un détecteur (12) servant à produire un signal représentant l'intensité du rayonnement ultraviolet reçu par le détecteur, et un clavier numérique servant à entrer les paramètres correspondant au type de peau de l'utilisateur, le facteur de protection du produit solaire utilisé par l'utilisateur ainsi que le degré de bronzage précédemment acquis par l'utilisateur. Un microprocesseur calcule une estimation de la dose maximum autorisée de rayonnements ultraviolets en fonction des paramètres donnés au système, et une durée d'exposition acceptable déterminée à partir de l'estimation de la dose maximum autorisée et de l'intensité des rayonnements ultraviolets enregistrée par le détecteur est visualisée sur un écran (14). Le dosimètre peut également comporter une alarme destinée à prévenir l'utilisateur que le temps d'exposition acceptable va se terminer ou est déjà dépassé.
PCT/GB1990/001397 1989-09-12 1990-09-10 Dosimetre pour mesurer les rayonnements ultraviolets Ceased WO1991004469A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB898920586A GB8920586D0 (en) 1989-09-12 1989-09-12 A device for guidance on sunbathing time
GB8920586-8 1989-09-12
GB8922888-6 1989-10-11
GB898922888A GB8922888D0 (en) 1989-10-11 1989-10-11 A device for guidance on sunbathing time

Publications (1)

Publication Number Publication Date
WO1991004469A1 true WO1991004469A1 (fr) 1991-04-04

Family

ID=26295909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/001397 Ceased WO1991004469A1 (fr) 1989-09-12 1990-09-10 Dosimetre pour mesurer les rayonnements ultraviolets

Country Status (4)

Country Link
CN (1) CN2075788U (fr)
AU (1) AU6344290A (fr)
GB (1) GB2236182A (fr)
WO (1) WO1991004469A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021503A1 (fr) * 1992-04-13 1993-10-28 Reliant Laser Corporation Protection pour le nez permettant de controler l'exposition au rayonnement uv
EP0585670A3 (en) * 1992-08-12 1996-01-17 Reliant Laser Corp Electro-optical system for measuring and analying accumulated short-wave and long-wave ultraviolet radiation exposure
US6389156B1 (en) * 1997-10-09 2002-05-14 Konica Corporation Method and apparatus for reading radiographic images
GB2408829A (en) * 2003-12-02 2005-06-08 Nissan Technical Ct Europ Ltd Cabriolet Vehicle With Solar Radiation Intensity Sensor
US7265358B2 (en) 2003-07-23 2007-09-04 L'oreal Device to prevent the risk of overexposure to harmful solar radiation
US8044363B2 (en) 2007-04-30 2011-10-25 Kimberly-Clark Worldwide, Inc. UV detection devices and methods

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400635B (de) * 1991-11-29 1996-02-26 Steiner Wilhelm Transportables messgerät zur erfassung der uv-strahlendosis als schutz vor gesundheitlichen schädigungen der haut
DE9306174U1 (de) * 1993-04-23 1994-05-19 Kolter, Heinrich, 50374 Erftstadt Meßgerät zur Bestimmung der Intensität der im Sonnenspektrum enthaltenen ultravioletten Strahlung
US5640957A (en) * 1993-09-29 1997-06-24 Instruments Sa, Inc. Ultraviolet radiation protection evaluator
WO1997018447A1 (fr) * 1995-11-14 1997-05-22 Tom Konstantin Abramovich Procede de mesure de rayonnement ultraviolet, dispositif de mise en oeuvre et photo-convertisseur
AU5509200A (en) * 1999-06-17 2001-01-09 Anton Ramsl System for determining the optimal insolation of a person
AT412128B (de) * 1999-06-17 2004-09-27 Anton Ramsl System zur bestimmung der optimalen sonnenbestrahlung von personen
EP1170035B1 (fr) * 2000-07-03 2005-11-09 Koninklijke Philips Electronics N.V. Procédé et dispositif d'optimisation de l'utilisation d'un dispositif de bronzage
FR2814543A1 (fr) * 2000-09-27 2002-03-29 Stocksun Appareil de mesures et de controle d'exposition aux rayons ultra-violets
JP3556601B2 (ja) 2001-02-01 2004-08-18 コナミ株式会社 携帯装置及び方法
EP1412713A1 (fr) * 2001-06-21 2004-04-28 Imego AB Capteurs pour la detection de rayonnement ultraviolet
RU2245523C2 (ru) * 2002-08-20 2005-01-27 Вячеслав Ильич Дорофеев Индивидуальное устройство контроля дозы ультрафиолетового излучения
CN1862628B (zh) * 2006-06-19 2010-12-08 上海序参量科技发展有限公司 具有光浴功能的显示设备
ITVI20110202A1 (it) * 2011-07-26 2013-01-27 I So Italia S R L Apparecchiatura abbronzante
CN103163545B (zh) * 2013-02-26 2015-09-30 国电锅炉压力容器检验中心 一种测量射线剂量的射线测量仪
CN105893721A (zh) * 2014-05-13 2016-08-24 陈威宇 适应性护肤信息提示系统及其适应性护肤提示方法
CN105301799A (zh) * 2015-10-30 2016-02-03 芜湖迈特电子科技有限公司 一种警示用眼疲劳眼镜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485306A (en) * 1982-02-19 1984-11-27 Arie Braunstein Measurement of solar radiation
US4535244A (en) * 1983-05-19 1985-08-13 Bpa Calscan, Inc. Photodosimeter
US4608492A (en) * 1983-05-19 1986-08-26 Teledyne Industries, Inc. Ultraviolet monitor suntan alarm with self test routines
US4704535A (en) * 1985-04-11 1987-11-03 Teledyne Industries, Inc. Ultraviolet dosimetry
US4851686A (en) * 1985-11-26 1989-07-25 Pearson Anthony P Ultraviolet radiation monitoring device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578728A5 (fr) * 1974-07-16 1976-08-13 Biviator Sa
US4428050A (en) * 1981-04-02 1984-01-24 Frank Pellegrino Tanning aid
GB2181833A (en) * 1985-09-13 1987-04-29 Radtech Inc Computing device for suntanning dose measurement, and process for producing optical filters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485306A (en) * 1982-02-19 1984-11-27 Arie Braunstein Measurement of solar radiation
US4535244A (en) * 1983-05-19 1985-08-13 Bpa Calscan, Inc. Photodosimeter
US4608492A (en) * 1983-05-19 1986-08-26 Teledyne Industries, Inc. Ultraviolet monitor suntan alarm with self test routines
US4704535A (en) * 1985-04-11 1987-11-03 Teledyne Industries, Inc. Ultraviolet dosimetry
US4851686A (en) * 1985-11-26 1989-07-25 Pearson Anthony P Ultraviolet radiation monitoring device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021503A1 (fr) * 1992-04-13 1993-10-28 Reliant Laser Corporation Protection pour le nez permettant de controler l'exposition au rayonnement uv
EP0585670A3 (en) * 1992-08-12 1996-01-17 Reliant Laser Corp Electro-optical system for measuring and analying accumulated short-wave and long-wave ultraviolet radiation exposure
US6389156B1 (en) * 1997-10-09 2002-05-14 Konica Corporation Method and apparatus for reading radiographic images
US7265358B2 (en) 2003-07-23 2007-09-04 L'oreal Device to prevent the risk of overexposure to harmful solar radiation
GB2408829A (en) * 2003-12-02 2005-06-08 Nissan Technical Ct Europ Ltd Cabriolet Vehicle With Solar Radiation Intensity Sensor
US8044363B2 (en) 2007-04-30 2011-10-25 Kimberly-Clark Worldwide, Inc. UV detection devices and methods

Also Published As

Publication number Publication date
GB2236182A (en) 1991-03-27
CN2075788U (zh) 1991-04-24
GB9019751D0 (en) 1990-10-24
AU6344290A (en) 1991-04-18

Similar Documents

Publication Publication Date Title
WO1991004469A1 (fr) Dosimetre pour mesurer les rayonnements ultraviolets
US4428050A (en) Tanning aid
US5008548A (en) Personal UV radiometer
US5151600A (en) Noseshade for monitoring exposure to ultraviolet radiation
US4704535A (en) Ultraviolet dosimetry
US4851686A (en) Ultraviolet radiation monitoring device
US4535244A (en) Photodosimeter
US4962910A (en) Device for use to prevent human skin from excessive sunburns
US5107123A (en) Solar ultraviolet radiation measuring device and process
US7709812B2 (en) Ultraviolet radiation monitoring device and a method of using the same
US5686727A (en) Ultraviolet exposure detection apparatus
CN102575958A (zh) 产品有效性监测装置
US4608655A (en) Wristwatch dosimeter
DE4012984A1 (de) Dosimeter
WO2014135871A2 (fr) Indicateur bracelet d'exposition à l'ultraviolet (uv)
EP0545887A1 (fr) Dispositif de mesure transportable pour enregistrer la dose de rayonnement ultra-violet conçu pour protéger la peau contre des dommages
US20040031927A1 (en) Indicating apparatus for skin protection against sunshine
JPH01501846A (ja) 対象皮膚の感度とともに変化するものとしての日焼け止製品の保護係数を測定するための装置
US20030234365A1 (en) Optical detector
JP2587499B2 (ja) 紫外線防御能評価方法およびそれに用いる紫外線反射率測定装置
US12313456B2 (en) Protective band to prevent skin damage to drivers
KR200273909Y1 (ko) 실시간 자외선측정을 수행하는 자외선 경보기
GB2261504A (en) Regulating the exposure of a user's skin to ultraviolet radiation
TW569005B (en) Ultraviolet detection sensor
EP4646965A1 (fr) Appareil de distribution de crème solaire

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

NENP Non-entry into the national phase

Ref country code: CA