A-A-51707 Lens, Ophthalmic, PlasticThis commercial item description covers the plastic lens made primarily of allyl diglycol carbonate monomer (ADC), commonly called CR-39 hard resin lenses. These lenses are of dress type for visual deficiency correction.

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[METRIC]

A-A-51707A

31 August 1993

SUPERSEDING

A-A-51707

8 October 1986

 

COMMERCIAL ITEM DESCRIPTION

 

LENS, OPHTHALMIC, PLASTIC

 

The General Services Administration has authorized the use of this Commercial Item Description.

 

This Commercial Item Description covers the plastic lenses made primarily of allyl diglycol carbonate monomer (ADC), commonly called CR-39 hard resin lenses. These lenses are of dress type for visual deficiency correction.

 

Salient characteristics:

 

Type:

 

I. Lens blank semi-finished

II. Lens, finished, uncut

 

Class:

 

A. Bifocal

B. Single vision

 

Style:

 

1. Spheres

2. Plano minus cylinders

3. Plus or minus compounds

4. Minus or minus compounds

5. 28 mm flat top

6. 35 mm flat top

 

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

 

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