SETO 1.60 Semi-Finished Single Vision Lens

Short Description:

The starting point for freeform production is a semi-finished lens, also known as a puck due to its resemblance to an ice hockey puck. These are produced in a casting process that is also used to manufacture stock lenses. The semi-finished lenses are produced in a casting process. Here, liquid monomers are first poured into moulds. Various substances are added to the monomers, e.g. initiators and UV absorbers. The initiator triggers a chemical reaction that leads to hardening or “curing” of the lens, while the UV absorber increases the UV absorption of the lenses and prevents yellowing.

Tags: 1.60 resin lens,1.60 semi-finished lens，1.60 single vision lens

Send email to us

Product Detail

Product Tags

Specification

1.60 semi-finished optical lens
Model:	1.60 optical lens
Place of Origin:	Jiangsu, China
Brand:	SETO
Lenses Material:	Resin
Bending	50B/200B/400B/600B/800B
Function	semi-finished
Lenses Color	Clear
Refractive Index:	1.60
Diameter:	70/75
Abbe Value:	32
Specific Gravity:	1.26
Transmittance:	>97%
Coating Choice:	UC/HC/HMC
Coating color	Green

Product Features

1）The feature of CR39 lens

①The better among other index lenses in hardness and toughness , high impact resistance .
②The more easily tinted than other index lenses.
③The higher transmittance as compared with other index lenses .
④The higher ABBE value providing the most comfortable visual experience .
⑤The more reliable and consistent lens product physically and optically .
⑥The more popular in the middle level countries.

2）What's the importance of a good semi-finished lens to RX production?

①High qualified rate in power accuracy and stability
② High qualified rate in cosmetics quality
③High optical features
④ Good tinting effects and hard-coating/AR coating results
⑤Realize the maximum production capacity
⑥Punctual delivery
Not just superficial quality, semi-finished lenses are more focus on the internal quality, such as precise and stable parameters, especially for the popular freeform lens.

3）What is the difference between HC, HMC and SHC？

Hard coating	AR coating/Hard multi coating	Super hydrophobic coating
makes the uncoated lens hard and increases the abrasion resistance	increases the transmittance of the lens and reduces surface reflections	makes the lens waterproof, antistatic, anti slip and oil resistance