Valid

GB/T 13511.3-2019Assembled spectacles -- Part 3: Single-vision near-vision spectacles (English PDF)

配装眼镜第3部分：单光老视成镜

Preview PDF

This is a limited preview

Buy now to download the full PDF (11 pages)

Need quotation for your management?

Get a formal quotation for GB/T 13511.3-2019 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

August 30, 2019

Implementation date

March 1, 2020

Scope

GB/T 13511.3-2019 is the English-translated version of 配装眼镜第3部分：单光老视成镜.

GB/T 13511.3-2019 is the Chinese standard "Assembled spectacles -- Part 3: Single-vision near-vision spectacles". Its scope clause reads: This section specifies the requirements, measurement methods and signs for single-light presbyopia.

This section applies to over-the-counter single-line-near reading glasses. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 13511.3-2019

National Standard of the People's Republic of China

ICS: 11.040.70
Classification: Y 89

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 Terms and definitions
Foreword
1 Scope
2 Normative references
3 Terms and definitions

1 Scope

This section specifies the requirements, measurement methods and signs for single-light presbyopia.

This section applies to over-the-counter single-line-near reading glasses.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB 10810.1 Spectacle lenses - Part 1. Single and multifocal lenses (GB 10810.1-2005, ISO 8980-1.2004,

MOD)

Spectacle lenses and related eyewear products - Part 3. Transmission specification and method of measurement (GB 10810.3-2006,

ISO 8980-3.2003, MOD)

GB/T 14214 Spectacle frame general requirements and test methods (GB/T 14214-2003, ISO 12870.1997, MOD)

GB/T 26397 ophthalmic optical terminology (GB/T 26397-2011, ISO 13666.1998, MOD)

QB/T 2506 glasses lens optical resin lens

3 Terms and definitions

The following terms and definitions as defined in GB/T 26397 apply to this document.

3.1 Single-visionready-to-wearnear-visionspectacles

Used only for near-reading spectacles, with or with a pair of single-view lenses of the same positive spherical top power, and this lens is not pressed

Set by the party.

3.2 Optical center horizontal distance opticalcenterhorizontaldistances; OCD

The distance between the optical centers of the two lenses in a direction parallel to the geometric center of the two mirror circles.

3.3 Optical center horizontal deviation

The difference between the measured value of the horizontal distance of the optical center and the nominal value.

3.4 Optical center one-sided horizontal deviation

The difference between the optical center's one-sided horizontal distance and one-half of the nominal value.

3.5 Optical center vertical mutual

The difference between the heights of the optical centers of the two lenses.

GB/T 10810.1 | GB/T 10810.2 | GB/T 10810.3 | GB/T 13511.4 | GB/T 13511.2 | GB/T 13511.1 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 8980 · ISO 12870.1997 · ISO 13666.1998

Cited by

How to Download GB/T 13511.3-2019

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.