Lens data sheets

Nine families. Every number as Seesee prints it.

Seventeen product pages and nine landing pages, reduced to their tables. Index, material, Abbe number, specific gravity, UV cut, design, diameters, base curves, corridors and stock power ranges are copied cell for cell. Where the factory publishes a test, the test is here too. Nothing is rounded and nothing is added.

Single vision

Finished and semi-finished, spherical and aspheric, in six indices. Stock powers in the table; higher powers by RX.

Source: single vision product page

Index	Material	Abbe	Specific gravity	UV block	Design	Power range
1.499	CR-39	58	1.32	350 nm	SPH	S +6.00 to -6.00, C 0.00 to -4.00
1.56	UNO-55	35	1.28	385 nm	SPH / ASP	S +6.00 to -8.00, C 0.00 to -4.00
1.59	Polycarbonate	32	1.20	380 nm	SPH	S +6.00 to -6.00, C 0.00 to -4.00
1.61	MR-8	42	1.30	395 nm	SPH / ASP	S +6.00 to -10.00, C 0.00 to -4.00
1.67	MR-7	32	1.36	395 nm	ASP	S +6.00 to -12.00, C 0.00 to -4.00
1.74	MR-174	33	1.46	395 nm	ASP	S +6.00 to -15.00, C 0.00 to -4.00

Coating options: UC (uncoated), HC (hard coating), HMC (hard multi coating), SHMC (super hydrophobic multi coating)
Types: Single vision, bifocal, progressive
Functions: Clear, photochromic, anti-glare, infrared protection
UV: 1.61, 1.67 and 1.74 come standard with UV400; 1.499 offered UC, HC or HMC
Higher powers: Made to order by RX
1.56 note: Korea UNO-55, 22% thinner than CR-39 per the product page

A clear single vision lens held in a white glove, green anti-reflective residual colour visible — Single vision lens, product page photograph.

Poster frame of the Seesee Optical video Single Vision Lenses Manufacturing Process, 27 seconds

Blue cut

Normal base with a slight tint, and the clear base UV420 series. Seesee publishes its own transmission test by wavelength band.

Source: normal blue cut and clear base product pages

Index: 1.49, 1.56, 1.60, 1.67, 1.74
Types: Single vision, bifocal, progressive
Function: Clear, photochromic, anti-glare, infrared, anti-scratch
Coating: UC, HC, HMC, SHMC
Normal base: Slight yellow tint, CR-39 or polycarbonate
Standard: Internal transmission test to GB/T 38120-2019 optical safety

Internal transmission test, normal blue cut

Item

385 to 415 nmrequirement below 75%

415 to 445 nmrequirement 80% or less

445 to 475 nmrequirement above 80%

475 to 505 nmrequirement above 80%

1.56 BLUE CUT ASPindex 1.56, power 0.00

62%

87%

92%

1.60 BLUE CUT ASPindex 1.60, power 0.00

63%

89%

94%

1.67 BLUE CUT ASPindex 1.67, power 0.00

63%

88%

92%

Requirement row of GB/T 38120-2019 as printed by Seesee: 385 to 415 nm below 75%, 415 to 445 nm 80% or less, 445 to 475 nm above 80%, 475 to 505 nm above 80%. The tick on each bar marks the requirement. Seesee reports the most harmful band is centred on 435 nm plus or minus 20 nm.

Clear base blue cut, UV420 series

Index	Design	Abbe	Coating colour
1.56 (1.553)	Aspheric	40	Green / Blue / Purple
1.60 (1.600)	Aspheric	41	Green / Blue / Purple
1.67 (1.665)	Aspheric	32	Green / Blue / Purple

Seesee describes the clear base series as "more clear base, higher transmittance and lower reflection".

A blue cut lens held between two fingers under a violet torch, blue dots scattered around it — Light filter test on a normal blue cut lens, product page.

A clear base blue cut lens held in a white glove, blue and green residual reflections — Clear base blue cut lens, product page.

Poster frame of the Seesee Optical video The Blue Cut Lens from Seesee Optical, 35 seconds

Poster frame of the Seesee Optical video Blue Cut Clear Base from Seesee Optical, 42 seconds

Bifocal and progressive

Round top, flat top and blended bifocals in CR-39 and 1.56; progressives in three indices with five corridor lengths.

Source: bifocal and progressive product pages

Bifocal

Index: CR-39, 1.56
Types: Round top, flat top, blended / invisible
Function: Clear, blue cut, photochromic
Power range: SPH -2.00 to +3.00, ADD +1.00 to +3.00
Coating: UC, HC, HMC, SHMC

Progressive

Item	Value
Index	1.499, 1.56, 1.61
Diameter	70 / 75 mm
Coating	UC, HC, HMC, SHMC
Function	Clear, blue cut, photochromic
Power range	SPH -2.00 to +3.00, ADD +1.00 to +3.00
Corridor	9+4 mm, 12 mm, 14 mm, 13+3 mm, 13+8 mm

The multifocal landing page lists the vision effects as round, flat, invisible and progressive, in 1.499 and 1.56, with blue cut multifocals in 1.56 in a blue or green coating.

A bifocal lens standing in a clear acrylic block engraved Seesee Optical, segment line visible, dark background — Bifocal lens, product page.

Two progressive lenses with yellow fitting marks standing in engraved acrylic blocks — Progressive lenses with fitting marks, product page.

Poster frame of the Seesee Optical video Eyeglasses Multifocal Lenses Quality Control, 17 seconds

Photochromic

Two routes: silver halide in the monomer, or a spin-coated photochromic film on MR substrates, with an in-car variant and a Karat anti-scratch top coat.

Source: material and spin-coating photochromic product pages

Photochromic in the material

Item	Value
Classification	Single vision, round top, flat top, blended, progressive
Function	Clear base, blue cut, fast change
UV protection	UV400 / UV420 / UV400
Colours	Grey, brown, pink, blue, orange, purple, yellow, green
Principle	Silver halide in the monomer
Fast change	Clear to dark in 5 seconds

Spin-coated photochromic

Index	Diameter	Function	Type	UV
1.56	72 / 65 mm	Clear base, blue cut	Photo grey / brown; normal, in-car, Karat	UV400 / UV420
1.61 MR-8	75 / 70 / 65 mm	Clear base, blue cut	Photo grey / brown; normal, in-car, Karat	UV400 / UV420
1.67 MR-7	75 / 70 / 65 mm	Clear base, blue cut	Photo grey / brown; normal, in-car, Karat	UV400 / UV420
1.74 MR-174	75 / 70 / 65 mm	Clear base, blue cut	Photo grey / brown; normal, in-car, Karat	UV400 / UV420
1.57	72 mm	Clear base, blue cut	Photo grey / brown	UV400 / UV420

Variants named on the spin-coating page: clear base, blue cut, In Car Photochromic (activates inside the car), Spin Photo Karat with the anti-scratch coating, and the newest generation "UV400 A8 Spin Photochromic (Blue Cut Coating) + Anti-scratch Karat Coating".

A darkened grey photochromic lens on a white background — Photochromic grey, product page.

A darkened brown photochromic lens on a white background — Photochromic brown, product page.

Poster frame of the Seesee Optical video Photochromic lens, 45 seconds

Poster frame of the Seesee Optical video Spin photo, 37 seconds

Function lenses

Five specialised lenses: PC myopia control with 881 to 1021 microlenses, anti-fatigue, the Karat anti-scratch coating, anti-glare driving and honeycomb pinhole.

Source: function lens product pages

1.591 PC myopia control

Material: Polycarbonate, index 1.591
Microlenses: 881 to 1021
Abbe: 30.6 to 31
Power range: SPH 0.00 to -6.00, CYL 0.00 to -2.00
Defocus: +3.5D to +4.5D, centre to edge stable
Defocus area: diameter 10.2 to 63.492 mm
Designs: Injection moulded, or stress-free (transmittance 1% higher, surface deviation about 0.015 against about 0.06)

Anti-fatigue

Item	Power	Diameter
1.56 UV420 eyerest	-0.00 to -5.00	55 to 80 mm
1.60 MR-8 eyerest	-0.00 to -6.00	55 to 80 mm

+0.75D auxiliary power, minimum pupil height 16 mm, asymmetric left and right design, for wearers aged 0 to 39. The landing page adds "Available in Shamir design".

Anti-scratch Karat coating

Index	UV	Diameter	Coating colour
1.56	UV420	72 / 65 mm	Light blue and light green
1.61	UV410	75 / 70 / 65 mm	Light blue and light green
1.67	UV410	75 / 70 / 65 mm	Light blue and light green
1.74	UV410	75 / 70 mm	Light blue and light green

On blue cut clear base. Published tests: 20,000 ink wiping cycles; 300 cycles of sand-table shaking friction; scratch resistance 50% or more higher than a normal lens.

Anti-glare driving

Item	Sphere	Cylinder
1.56 ASP	-0.00 to -8.00	-0.00 to -2.00
1.56 ASP	+0.00 to +6.00	-0.00 to -2.00
1.56 ASP	-0.00 to -6.00	-2.25 to -4.00
1.60 ASP	-0.00 to -10.00	-0.00 to -2.00
1.60 ASP	-0.00 to -6.00	-2.25 to -4.00
1.60 ASP	-6.25 to -8.00	-2.25 to -3.00
1.60 ASP	+0.00 to +6.00	-0.00 to -4.00
1.67 ASP	-0.00 to -12.00	-0.00 to -2.00
1.67 ASP	-6.25 to -15.00 and +0.00 to +7.00	-0.00 to -3.00
1.67 ASP	-0.00 to -10.00	-2.25 to -4.00

Multiple-effect AR coating on an anti blue-UV base; Seesee states high efficiency in blocking UV and blue light at 415 to 455 nm.

Honeycomb (pinhole) lenses

Item	Abbe	Specific gravity	UV	Front coating
1.56 ASP blue cut	35	1.28	UV420	Cellular, translucent metal hexagonal film
1.61 MR-8 ASP blue cut	40	1.30	UV420	Cellular, translucent metal hexagonal film
1.67 MR-7 ASP blue cut	32	1.35	UV420	Cellular, translucent metal hexagonal film

A hand holding a 1.591 PC myopia control lens, the microlens dot pattern visible against a white background — Myopia control lens, product page.

An anti-fatigue lens with yellow engraving marks lying on a dark surface — Anti-fatigue lens, product page.

Two lenses side by side on a dark surface, labelled anti-scratch and normal — Karat coating lens next to a normal lens, product page.

An anti-glare driving lens with a purple residual reflection standing in a clear acrylic block engraved Seesee Optical, labelled 1.56, 1.61, 1.67 — Anti-glare driving lens, product page.

A man wearing glasses with honeycomb coating lenses, Seesee product photograph — Honeycomb coating lens, product page.

Poster frame of the Seesee Optical video Anti scratch 2, Karat coating test, 36 seconds

Poster frame of the Seesee Optical video Honeycomb coating 1, 43 seconds

PC and Trivex

Impact-resistant substrates: polycarbonate 1.591 with a five-year guarantee, and KOC Trivex at 1.558 and 1.61 coated on Satisloh machines.

Source: PC and Trivex product pages

1.591 polycarbonate

Item	Value
Material	Polycarbonate
Specific gravity	1.2
Transmission	97%
Abbe	31
UV	UV380 / UV420
Special function	Impact resistance
Coating	HC, HCT, HMC, SHMC
Guarantee	5 years
Designs	Single vision, flat top, blended, progressive
Progressive corridor	9+4 mm (diameter 70); semi-finished 14+2 mm (diameter 75)

1.558 and 1.61 Trivex (Unbreakable)

Item	Value
Material	KOC
Abbe	42
Transmittance	98%
Specific gravity	1.28
Diameter	75 / 65 mm
Coating	HMC, SHMC
Coating colour	Green / blue
Coating machine	Germany Satisloh
Available as	Clear, spin photochromic, blue cut, spin photochromic blue cut
Impact	5.6 times the national standard; a 90 g steel ball dropped from 1.27 m does not break the lens

A polycarbonate lens with hard multi coating standing in a clear acrylic block engraved Seesee Optical, dark background — PC HMC lens, product page.

A Trivex lens standing in a clear acrylic block engraved Seesee Optical, dark background — Trivex lens, product page.

Poster frame of the Seesee Optical video PC Lens, 21 seconds

Poster frame of the Seesee Optical video Trivex, 22 seconds

Freeform RX

Digitally surfaced prescription lenses on IOT and Shamir designs, in five indices.

Source: freeform RX landing page and IOT product page

Indices: 1.50, 1.56, 1.61, 1.67, 1.74
Models: Surfacing progressive, digital single vision, transition surfacing progressive
Colours: Clear, grey, brown
Coatings: EMI, UC, HC, HMC, SHMC, anti-blue light
Designs: Shamir design and IOT design (Spain)
Technology named: Digital surfacing, Digital Ray-Path, CAD, CNC machining, automated quality control

IOT progressive design families

Family	Designs	Minimum fitting height
ARIES	STEADY, H25, H65, S35	14 to 20 mm in 1 mm steps
BASIC	H20, H40, H60, S35	14, 16, 18, 20 mm
ALPHA	H25, H45, H65, S35	14 to 20 mm

The menu item "Shamir Design" has no product page of its own; Shamir is named on the landing page and on the anti-fatigue lens.

Two clear uncut freeform lenses leaning against each other on a white surface, captioned What we do — Freeform IOT lens, product page.

A hand holding a lens under a blue ring lamp for inspection — Freeform RX landing page photograph.

Sunlens and polarized

Tinted, mirror and gradient sun lenses in CR-39 and MR, polarized finished in 1.499 and semi-finished to 1.67.

Source: sunlens and polarized product pages

Sunlens

Item	Value
Index	1.499, 1.56, 1.60, 1.67
Colours	Clear, grey, brown, G-15 and tailor-made
Diameter	75 mm, 80 mm
Power range	-0.00 to -8.00
Base curve	4.00 to 6.00
Coatings	UC, HC, HCT, HMC, REVO
Types	Tinted, mirror, gradient

Polarized

Index	Material	Abbe	UV	Finished	Semi-finished	Colours	Coating
1.499	CR-39	58	400	Plano and prescription	Yes	Grey, brown, green; solid and gradient	UC, HC, HMC, mirror
1.6	MR-8	42	400	No	Yes	Grey, brown, green; solid	UC
1.67	MR-7	32	400	No	Yes	Grey, brown, green; solid	UC

Landing page materials: CR-39, polycarbonate, TAC. Applications named: driving, water sports, outdoor, shooting.

Six mirror-coated sun lenses in pink, blue, black, red, orange and purple with palm leaf reflections — Mirror lenses, product page.

A cluster of mirror-coated polarized lenses in blue, orange, red, yellow and grey — Polarized lens, product page.

Mineral glass

Glass single vision and bifocals at 1.523, Super White at 1.7, photochromic grey and brown.

Source: mineral lens landing page

Vision correction: Single vision; bifocal, domed round top and flat top
Material: Clear, Super White, photochromic
Index: 1.523; Super White 1.7
Photochromic: Grey or brown, round top or flat top, index 1.523

Mineral glass is a landing page only; no product page or power table is published.

A clear mineral glass single vision lens on a dark cloth embroidered Seesee optical lens factory — Mineral single vision, landing page.

A clear Super White mineral glass lens resting against a slice of wood — Super White mineral, landing page.

Semi-finished and stock

Stock lenses, RX lenses, semi-finished blanks

Seesee sells stock finished lenses in the power ranges above, makes higher powers by RX, and lists semi-finished blanks for polarized 1.499, 1.6 and 1.67 and for PC progressive 14+2 mm. Customisation is offered on material, coating, tint and colour, refractive index, function and prescription integration.

Ask for a sample How the lenses are made