In this work we report the image quality analysis of an antique microscope objective from ca 1850 by using a non-contact technique based on a Shack-Hartmann wavefront sensor. The method and the experiment are described, and results are fully discussed. The technique provides useful and interesting tools for colour image formation process simulations. Application of this work for educational purposes is also commented.
{"title":"Image quality analysis of an antique microscope objective with a Shack-Hartmann wavefront sensor: an experiment of educational interest","authors":"A. Marzoa","doi":"10.7149/opa.54.2.51062","DOIUrl":"https://doi.org/10.7149/opa.54.2.51062","url":null,"abstract":"In this work we report the image quality analysis of an antique microscope objective from ca 1850 by using a non-contact technique based on a Shack-Hartmann wavefront sensor. The method and the experiment are described, and results are fully discussed. The technique provides useful and interesting tools for colour image formation process simulations. Application of this work for educational purposes is also commented.","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"65 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76519053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Informe del comite de nanofotonica","authors":"Pablo A. Postigo","doi":"10.7149/OPA.54.1.VI","DOIUrl":"https://doi.org/10.7149/OPA.54.1.VI","url":null,"abstract":"","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"8 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79793497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Informe del comite de mujeres en óptica y fotonica","authors":"María Viñas","doi":"10.7149/OPA.54.1.VIII","DOIUrl":"https://doi.org/10.7149/OPA.54.1.VIII","url":null,"abstract":"","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"33 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88601663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blue light comprises the electromagnetic spectrum between approximately 380-500 nm. The sun is the main source of blue light, although we also receive emissions of this type of light by electronic devices and artificial lighting. Changes in lighting systems and lifestyle habits have led to the questioning of exposure to blue light emitted by artificial sources as a possible health problem. Faced with this potential problem, ophthalmic lens laboratories brought to market lenses with specific treatment against hazard blue light emitted by electronic devices. In this work we measure the spectral transmittance of 6 blue filter ophthalmic lenses from 4 different laboratories, Essilor, Hoya, Shamir and Kodak. We face the transmission spectra measured with the emission spectra of 3 different electronic devices, to be able to discuss the suitability of these blue filter lenses for use with electronic devices. We conclude that the transmittance of blue filters in the maximum blue light emission range is high above 90%, and that changing the correlated color temperature of electronic devices results in a greater reduction in exposure to hazard blue light. We also found that Shamir's Blue Zero and Essilor's Eye Protect System lenses block UVA light and have low transmittance in the range of 380- 420 nm, so they would be more effective for protection against blue light outdoors than for use with electronic devices.
{"title":"Suitability of blue filter ophthalmic lenses with respect to the use with mobile devices and computers","authors":"Justo Arines Piferrer, O. Rodríguez","doi":"10.7149/OPA.54.1.51048","DOIUrl":"https://doi.org/10.7149/OPA.54.1.51048","url":null,"abstract":"Blue light comprises the electromagnetic spectrum between approximately 380-500 nm. The sun is \u0000the main source of blue light, although we also receive emissions of this type of light by electronic \u0000devices and artificial lighting. Changes in lighting systems and lifestyle habits have led to the \u0000questioning of exposure to blue light emitted by artificial sources as a possible health problem. Faced \u0000with this potential problem, ophthalmic lens laboratories brought to market lenses with specific \u0000treatment against hazard blue light emitted by electronic devices. In this work we measure the spectral \u0000transmittance of 6 blue filter ophthalmic lenses from 4 different laboratories, Essilor, Hoya, Shamir \u0000and Kodak. We face the transmission spectra measured with the emission spectra of 3 different \u0000electronic devices, to be able to discuss the suitability of these blue filter lenses for use with electronic \u0000devices. We conclude that the transmittance of blue filters in the maximum blue light emission range \u0000is high above 90%, and that changing the correlated color temperature of electronic devices results in \u0000a greater reduction in exposure to hazard blue light. We also found that Shamir's Blue Zero and \u0000Essilor's Eye Protect System lenses block UVA light and have low transmittance in the range of 380- \u0000420 nm, so they would be more effective for protection against blue light outdoors than for use with \u0000electronic devices.","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"2 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79193938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work was supported by the Spanish Ministerio de Economia y Competitividad and FEDER funds under project Ref. DPI2016-76019-R.
{"title":"Visual acuity assessment in phakic and pseudophakic eyes under red, green, and blue illumination","authors":"Laura Clavé","doi":"10.7149/opa.53.4.51047","DOIUrl":"https://doi.org/10.7149/opa.53.4.51047","url":null,"abstract":"This work was supported by the Spanish Ministerio de Economia y Competitividad and FEDER funds under project Ref. DPI2016-76019-R.","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"148 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77356706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Committe report - AREA de MUJERES EN ÓPTICA Y FOTÓNICA","authors":"M. Viñas","doi":"10.7149/opa.53.4.ix","DOIUrl":"https://doi.org/10.7149/opa.53.4.ix","url":null,"abstract":"","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"109 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74428926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High precision two photon spectroscopy in hydrogen isotopes for the measurement of the electric field in plasmas generated in hollow cathode discharges","authors":"V. Gonzalez-Fernandez","doi":"10.7149/opa.53.4.51050","DOIUrl":"https://doi.org/10.7149/opa.53.4.51050","url":null,"abstract":"","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"31 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83723654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigative Modeling of Symmetric Fiber Bragg Grating as Dispersion Compensation for Optical Transmission System","authors":"A. Shabaneh","doi":"10.7149/opa.53.4.51052","DOIUrl":"https://doi.org/10.7149/opa.53.4.51052","url":null,"abstract":"","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"19 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84469979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-21DOI: 10.1101/2020.09.19.20192757
J. Arines, Carmen Bao-Varela
Disinfection is now one of the major concerns of society. Soap, or hydroalcohol are two known ways of sanitizing different objects. Now we can find in the market more sophisticated systems, which provide more confidence on their sanitizing effects, or that allows disinfection of objects that cannot be sanitized with soap or hydroalcoholic solutions. In this work we analyze a commercially available sanitizing device that claims the use of UVC radiation. We will show that this device is not suitable for complete disinfection of the objects introduced on the cabin. We provide spectral characterization of the sources, as well as irradiance measurements inside the cabin. We conclude that the cabin cannot be used for sanitizing most of the objects that are included in the documentation of the device.
{"title":"Beware of UVC sanitizer","authors":"J. Arines, Carmen Bao-Varela","doi":"10.1101/2020.09.19.20192757","DOIUrl":"https://doi.org/10.1101/2020.09.19.20192757","url":null,"abstract":"Disinfection is now one of the major concerns of society. Soap, or hydroalcohol are two known ways of sanitizing different objects. Now we can find in the market more sophisticated systems, which provide more confidence on their sanitizing effects, or that allows disinfection of objects that cannot be sanitized with soap or hydroalcoholic solutions. In this work we analyze a commercially available sanitizing device that claims the use of UVC radiation. We will show that this device is not suitable for complete disinfection of the objects introduced on the cabin. We provide spectral characterization of the sources, as well as irradiance measurements inside the cabin. We conclude that the cabin cannot be used for sanitizing most of the objects that are included in the documentation of the device.","PeriodicalId":19538,"journal":{"name":"Optica Pura y Aplicada","volume":"5 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2020-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79084109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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