JIS B 0090-7:2001 PDF

Scope: The JIS B 0090 family of standards specifies the representation of design and functional requirements for optical elements and systems in drawings used for manufacturing and inspection. This standard specifies that surface defects such as scratches, pits, fixture marks, and coatings within the effective aperture of the optical surfaces of individual optical elements are Specifies the display of acceptable levels of scratches (coating blemishe, etc.). It also specifies how to indicate the size of allowable edge chips. It must be noted that the acceptable level of surface defects is specified taking into account the functional effects (affecting the imaging or durability of the optical element) as well as the cosmetic (aesthetic) effects. . This standard applies to both transparent and reflective surfaces. Applies to finished optical elements (including coatings), but not to assembled parts. It can be seen that acceptable surface defects can be defined either by Method I (surface area impaired or affected by the defect) or Method II (visibility of the defect). Provisions are given for both methods to indicate acceptable surface defects. Note: The corresponding international standards for this standard are shown below. The symbols representing the degree of correspondence are IDT (matched), MOD (modified), and NEQ (not equivalent) based on ISO/IEC Guide 21.

JIS B 0090-7:2001 history

2021 JIS B 0090-7:2021 Preparation of drawings for optical elements and systems -- Part 7: Surface imperfections
2012 JIS B 0090-7:2012 Preparation of drawings for optical elements and systems -- Part 7: Surface imperfections
2001 JIS B 0090-7:2001 Preparation of drawings for optical elements and systems -- Part 7: Surface imperfection tolerances