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Number of Lenses:

Center Thickness:

Edge Thickness:

Focal Length:

Radius of Curvature:

Diameter / Length:

Width:

Surface Quality:

Surface Flatness:

Antireflection Coating?

Laser / Heat Resistant?

Microoptic?

Mounted?

Help with Aspheric Lenses specifications:

Achromat Specifications
   Number of Lenses      Achromats can come as either doublets or triplets.
   Your choices are...         
   Doublet       Two lenses either cemented or mounted together. 
   Triplet       Three lenses either cemented or mounted together. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Performance
   Center Thickness       The thickness of the lens at its center. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Edge Thickness       The thickness of the lens at its edge. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Focal Length       The effective focal length is the distance from the lens the light converges. Focal lengths are positive for a converging system and negative for a diverging system. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Radius of Curvature       If a lens's curvature was extrapolated into a sphere, the radius of that sphere is the radius of curvature for that lens. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Diameter / Length       Diameter of the lens if viewed straight on; could also be thought of as the length. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Width       Width of the lens looking straight on; could also be thought of as the height of the lens. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Lens Surface
   Surface Quality:      Surface quality of the lens.
   Your choices are...         
   10-5 Scratch / Dig       A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 10/5 indicates the average diameter of the digs to be .05 mm and the average length of a scratch is .10 mm. 
   20-10 Scratch / Dig       A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 20/10 indicates the average diameter of the digs to be .10 mm and the average length of a scratch is .20 mm. 
   40-20 Scratch / Dig       A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 40/20 indicates the average diameter of the digs to be .20 mm and the average length of a scratch is .40 mm. 
   60-40 Scratch / Dig       A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 60/40 indicates the average diameter of the digs to be .40 mm and the average length of a scratch is .60 mm. 
   80-50 Scratch / Dig       A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 80/50 indicates the average diameter of the digs to be .50 mm and the average length of a scratch is .80 mm. 
   Other       Any other scratch/dig rating not listed. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Surface Flatness:      The surface flatness of the plate lens, given in terms of λ(λ=633nm).
   Your choices are...         
   λ/2       The biggest variation in surface height for the lens is no more than λ/2 (λ=633nm). 
   λ/4       The biggest variation in surface height for the lens is no more than λ/4 (λ=633nm). 
   λ/5       The biggest variation in surface height for the lens is no more than λ/5 (λ=633nm). 
   λ/8       The biggest variation in surface height for the lens is no more than λ/8 (λ=633nm). 
   λ/10       The biggest variation in surface height for the lens is no more than λ/10 (λ=633nm). 
   λ/20       The biggest variation in surface height for the lens is no more than λ/20 (λ=633nm). 
   Other       Any other surface flatness. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Lens Features
   Antireflection Coating       Lenses have an antireflective coating. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Laser / Heat Resistant       Lenses are rated for use with lasers or are heat resistant. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Microoptic       Suppliers describe the optic as a micro-optic or miniature optic. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Mounted       Optics come already mounted. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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