JPS5825101U

JPS5825101U - Wearing test sheet for progressive multifocal lenses

Info

Publication number: JPS5825101U
Application number: JP11951181U
Authority: JP
Inventors: サム・マサミ・オツジ
Original assignee: セイコー株式会社
Priority date: 1981-08-12
Filing date: 1981-08-12
Publication date: 1983-02-17
Also published as: JPS6136245Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は所要個所にマットを載せたシートの平面図、第
２図は視力表の表示面の正面図、第３図はシート上の所
要個所にマットを敷き視力表を立てマット上に被検者が
直立した側面図である。１・・・・・・シート、２ｍ・・・・・・太横線、３ｎ
・・・・・・太縦綿、４・・・・・・横細線、５・・・
・・・縦細線、６・・・・・・数字、７．８・・・・・
・傾斜線、９・・・・・・扇形部、１０・・・・・・番
号、１１・・・・・・表記、１２・・・・・・視力表植
立線、１５・・・・・・マット、１６・・・・・・足跡
、２０・・・・・・視力表、２１・・・・・・表示面、
２４・・・・・・保持脚、２５・・・・・・被検者。Figure 1 is a plan view of the seat with mats placed on the required areas, Figure 2 is a front view of the visual acuity chart display surface, and Figure 3 is a front view of the display surface of the visual acuity chart with the mats placed on the required locations on the seat, the visual acuity chart placed on the mat, and the mat covered. FIG. 3 is a side view of the examiner standing upright. 1...Sheet, 2m...Thick horizontal line, 3n
...Thick vertical cotton, 4...Horizontal thin line, 5...
・・・Vertical thin line, 6... Number, 7.8...
・Slope line, 9...Fan shaped part, 10...Number, 11...Description, 12...Visual scale line, 15... ...Matt, 16...Footprints, 20...Visibility chart, 21...Display surface,
24...Holding leg, 25...Subject.

Claims

[Scope of utility model registration request]

A plurality of thick horizontal lines (2m) and thick vertical lines (3n) at predetermined equal intervals with the longitudinal direction of the flexible, non-stretchable sheet 1 having a long rectangular shape and at small intervals A large square and a small square are drawn using a horizontal thin line 4 and a vertical thin line 5, and a mat 15 on which a footprint 16 is displayed at the center is placed at one end of the square. Draw inclined lines 7 and 8 from positions 5C1l apart from the center to positions about 60 cm apart from each other at the center of the thick horizontal line at the opposite end of the sheet 1, form a fan-shaped part 9 in the center, and Neither the large square nor the small square is formed in the fan-shaped portion 9, and it is 250 mm larger than the naked eye of a human body standing upright on the footprint 16.
01 Draw the raised line 12 of the visual acuity chart 20 at a distant position, and draw a plurality of numbers 10 at predetermined intervals in a direction closer to this, and a notation 11 corresponding to the visual acuity of 0°5 corresponding to the distance from the naked eye.
, and an unsorted number 6 indicating the large squares written on both sides of the fan-shaped part 9 is written in the center of each small square. A wear test sheet for a progressive multifocal lens, which is provided with holding legs 24 so that the display surface 21 is perpendicular to the line of sight of the naked eye when the lens is opened.