GB1590248A - Light transmitting and/or receiving device - Google Patents
Light transmitting and/or receiving device Download PDFInfo
- Publication number
- GB1590248A GB1590248A GB9184/78A GB918478A GB1590248A GB 1590248 A GB1590248 A GB 1590248A GB 9184/78 A GB9184/78 A GB 9184/78A GB 918478 A GB918478 A GB 918478A GB 1590248 A GB1590248 A GB 1590248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- shells
- window means
- light
- welding
- 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.)
- Expired
Links
- 238000003466 welding Methods 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
- B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
- B29C66/5414—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being rigid, e.g. a plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/733—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
- B29C66/7336—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
- B29C66/73361—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being opaque to visible light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/733—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
- B29C66/7336—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
- B29C66/73365—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Push-Button Switches (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2996777A JPS53115071A (en) | 1977-03-18 | 1977-03-18 | Photoelectric switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1590248A true GB1590248A (en) | 1981-05-28 |
Family
ID=12290729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9184/78A Expired GB1590248A (en) | 1977-03-18 | 1978-03-08 | Light transmitting and/or receiving device |
Country Status (6)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4460259A (en) * | 1982-12-13 | 1984-07-17 | Eastman Kodak Company | Single lens rangefinder device having light emitter and detector |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5749889Y2 (US20100223739A1-20100909-C00005.png) * | 1979-05-21 | 1982-11-01 | ||
US4420840A (en) * | 1981-08-17 | 1983-12-13 | Livermore Thomas R | Intrinsically safe photoelectric sensing |
DE3204258A1 (de) * | 1982-02-08 | 1983-08-25 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Optischer reflexsensor, insbesondere infrarotnaeherungsschalter |
JPS5977402A (ja) * | 1982-10-26 | 1984-05-02 | Toshiba Corp | 光リンク |
DE3338807C2 (de) * | 1983-10-26 | 1989-02-02 | Klaus Hermle | Optoelektronischer Näherungsschalter |
US4618516A (en) * | 1985-09-12 | 1986-10-21 | Branson Ultrasonics Corporation | Ultrasonic welding of thermoplastic workpieces |
US5013911A (en) * | 1988-05-27 | 1991-05-07 | Oki Electric Industry Co., Ltd. | Optical sensor unit with sealed optical element and cable connector |
DE3822167A1 (de) * | 1988-06-30 | 1990-02-08 | Liess Hans Dieter Prof Dr Ing | Lichtschranke |
EP0368361B1 (en) * | 1988-11-11 | 1993-05-05 | Omron Tateisi Electronics Co. | Electronic apparatus including photoelectric switch |
US5124549A (en) * | 1990-10-15 | 1992-06-23 | Lectron Products, Inc. | Automatic headlamp dimmer with optical baffle |
US5194695A (en) * | 1990-11-02 | 1993-03-16 | Ak Technology, Inc. | Thermoplastic semiconductor package |
US5769256A (en) * | 1992-05-22 | 1998-06-23 | Unimation, Inc. | Method and apparatus for securing one plastic member to another plastic member |
US5879115A (en) * | 1992-05-22 | 1999-03-09 | Unimation, Inc. | Method and insert for connecting components to plastic members |
US5697744A (en) * | 1992-05-22 | 1997-12-16 | Unimation, Inc. | Method and insert for connecting components to plastic members |
US5861072A (en) * | 1992-05-22 | 1999-01-19 | Unimation, Inc. | Ultrasonic energy directing attachment of plastic parts to one another |
US5622579A (en) * | 1995-03-31 | 1997-04-22 | Graham Packaging Corporation | Method for attachment of a service device to a container |
US5931324A (en) * | 1995-03-31 | 1999-08-03 | Graham Packaging Company, L.P. | Plastic container and non-integral handle |
US5918754A (en) * | 1996-08-07 | 1999-07-06 | Graham Packaging Corporation | Blow-molded plastic container with permanently attached separate handle |
US5841564A (en) * | 1996-12-31 | 1998-11-24 | Motorola, Inc. | Apparatus for communication by an electronic device and method for communicating between electronic devices |
EP1270183A1 (en) * | 2001-06-29 | 2003-01-02 | Nokia Corporation | Housing construction |
JP2005233777A (ja) * | 2004-02-19 | 2005-09-02 | Denso Corp | 距離検出装置 |
US20050247863A1 (en) * | 2004-05-04 | 2005-11-10 | Susanne Arens | Photoelectric switch for use in sealed cases |
EP4354734A1 (de) * | 2022-10-12 | 2024-04-17 | Binder Vermögensverwaltung GmbH & Co. KG | Vorrichtung zur steuerung und anzeige von gerätezuständen eines schwimmbeckens |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6751593U (de) * | 1968-07-31 | 1969-02-06 | Siemens Ag | Lichtschrankenempfaenger |
US3870878A (en) * | 1973-05-16 | 1975-03-11 | Sick Optik Elektronik Erwin | Light barrier apparatus |
GB1471357A (en) * | 1973-08-08 | 1977-04-27 | Omron Tateisi Electronics Co | Photoelectric detector |
DE2453097C3 (de) * | 1974-11-08 | 1981-08-13 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Lichtstrahlschalter |
-
1977
- 1977-03-18 JP JP2996777A patent/JPS53115071A/ja active Granted
-
1978
- 1978-03-08 GB GB9184/78A patent/GB1590248A/en not_active Expired
- 1978-03-15 IT IT21207/78A patent/IT1093407B/it active
- 1978-03-17 FR FR7807857A patent/FR2384270A1/fr active Granted
- 1978-03-17 US US05/887,795 patent/US4211923A/en not_active Expired - Lifetime
- 1978-03-17 DE DE2811703A patent/DE2811703B2/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4460259A (en) * | 1982-12-13 | 1984-07-17 | Eastman Kodak Company | Single lens rangefinder device having light emitter and detector |
Also Published As
Publication number | Publication date |
---|---|
IT7821207A0 (it) | 1978-03-15 |
DE2811703C3 (US20100223739A1-20100909-C00005.png) | 1987-04-16 |
FR2384270A1 (fr) | 1978-10-13 |
JPS552051B2 (US20100223739A1-20100909-C00005.png) | 1980-01-18 |
FR2384270B1 (US20100223739A1-20100909-C00005.png) | 1980-06-20 |
DE2811703A1 (de) | 1978-09-21 |
JPS53115071A (en) | 1978-10-07 |
IT1093407B (it) | 1985-07-19 |
US4211923A (en) | 1980-07-08 |
DE2811703B2 (de) | 1979-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1590248A (en) | Light transmitting and/or receiving device | |
EP1312277B1 (en) | Multi-function handheld device for outdoor use | |
GB1583851A (en) | Device for use in a switching system | |
EP0778540A3 (en) | Optical reading apparatus | |
US4551598A (en) | Illuminated membrane switch | |
JP3725843B2 (ja) | 反射型センサ | |
US3759153A (en) | Lens shade | |
CN111463053A (zh) | 光电开关按键及键盘 | |
JPS607001A (ja) | 車両用の灯火装置 | |
JPH0128916B2 (US20100223739A1-20100909-C00005.png) | ||
EP0655758B1 (en) | A light emitting push button | |
US4716501A (en) | Indicator light assembly with fluorescent lens | |
EP0613183A4 (en) | OPTICAL SENSOR AND METHOD FOR THE PRODUCTION THEREOF. | |
ES2002319A6 (es) | Pirodetector para la deteccion de un cuerpo que entra en su zona de deteccion | |
CN211828573U (zh) | 光电开关按键及键盘 | |
USD262578S (en) | Combined power failure and flash light with buzzer | |
EP0354699A3 (en) | Film material | |
CN212156748U (zh) | 一种灯带 | |
CN217584203U (zh) | 一种泳池投光灯 | |
CN218630190U (zh) | 距离传感器 | |
JPH0440680Y2 (US20100223739A1-20100909-C00005.png) | ||
JPS6012870Y2 (ja) | 障害物検出器 | |
CN209996311U (zh) | 一种人体生理参数监测组件和穿戴设备 | |
USD267819S (en) | Combined industrial diver's underwater light and ultraviolet inspection light | |
JPS62200630A (ja) | 光フアイバ−形光電スイツチ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19980307 |