During this, the person assisting you must make sure their own head is very straight. PM2.5 air pollution, mean annual exposure (micrograms per cubic meter). Both of you can repeat the steps outlined above, with your friend holding the ruler to the bridge of your nose and taking the measurement. Progression to secondary school, male () Pupil-teacher ratio, primary. All you need to do is stand facing your friend and ask them to measure your PD using either a ruler or a millimeter tape measure. If you are struggling to follow these steps, enlisting the help of a friend could make things easier. Repeat the process to ensure you get the most accurate measurement result.This number is your first pupillary distance measurement. Read the number aligned with your right pupil’s centre.Keeping the ruler still, close your left eye and open your right eye.While looking in the mirror, align the ruler’s zero with your left pupil. Standing in front of a mirror, hold the ruler up to the bridge of your nose or against the line of your eyebrows.All you need is a ruler and a mirror on standby. CN CN201510340729.If you don’t have access to the tools required to use our app, you can easily measure your PD by yourself.Multifunctional full-automatic distance meter with sliding window Glasses type interpupillary distance measurer Interpupillary distance, optical range measuring device Method of measuring interpupillary distance Pupil distance measurement device and methodĪpplications Claiming Priority (1) Application Numberįamily ID=53941051 Family Applications (1) Application NumberĬited By (1) * Cited by examiner, † Cited by third party Publication numberĪ kind of eyes interpupillary distance measuring device and methodĬitations (6) * Cited by examiner, † Cited by third party Publication number Priority Applications (1) Application Number CN201510340729.8A Pupil distance measurement device and method interpupillary distance measuring method according to claim 3, is characterized in that: described driver (3) is driven by Long-distance Control. 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 张仕郎 filed Critical 张仕郎 Priority to CN201510340729.8A priority Critical patent/CN104873168A/en Publication of CN104873168A publication Critical patent/CN104873168A/en Status Pending legal-status Critical Current LinksĤ. Inventor 张仕郎 Original Assignee 张仕郎 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 status listed.) Pending Application number CN201510340729.8A Other languages Chinese ( zh) Google Patents Pupil distance measurement device and methodĭownload PDF Info Publication number CN104873168A CN104873168A CN201510340729.8A CN201510340729A CN104873168A CN 104873168 A CN104873168 A CN 104873168A CN 201510340729 A CN201510340729 A CN 201510340729A CN 104873168 A CN104873168 A CN 104873168A Authority CN China Prior art keywords interpupillary distance pinhole patient driver pupil distance Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN104873168A - Pupil distance measurement device and method You can also easily measure your PD yourself: You can either use our. You can request your PD measurement from your optician when you receive your prescription. As an adult, your PD never changes - even when your prescription changes. CN104873168A - Pupil distance measurement device and method Pupillary distance (PD for short) is used for proper fitting of prescription glasses.
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