For the illumination optical system and a simple experiment, it is the glass substrate of which high surface quality used for the optical element is not required. Surface accuracy and parallelism (tolerance of wedged) is the same as optical flats for a laser.

  • It is also available for manufacturing with a coating as requested to the plane substrate.
  • In additional to the circle, square type, rectangular type of planar substrate, it is also available a wedge substrate and the parallel planar substreae which has high surface accuracy of both side.
Material BK7
Surface flatness λ/10
Clear aperture 90% of the actual aperture, or a circle or ellipse inscribed in the rectangle of 90% dimensions
Surface Quality (Scratch-Dig) 60-40

Circle

Part Number Thickness t [MM] Parallelism Diameter ØD [MM] Rear surface surface accuracy
S-OFB-10C03-10 3 <3′ Ø10 Grounded
S-OFB-10C05-10 5 <3′ Ø10 Grounded
S-OFB-15C03-10 3 <3′ Ø15 Grounded
S-OFB-20C03-10 3 <3′ Ø20 Grounded
S-OFB-20C05-10 5 <3′ Ø20 Grounded
S-OFBP-25C05-10 5 <3′ Ø25 Polished
S-OFBP-25.4C05-10 5 <3′ Ø25.4 Polished
S-OFBP-30C05-10 5 <3′ Ø30 Polished
S-OFBP-40C06-10 6 <3′ Ø40 Polished
S-OFBP-50C08-10 8 <3′ Ø50 Polished

 

Square

Part Number Thickness t [MM] Parallelism Diameter ØD [MM] Rear surface surface accuracy
S-OFB-10S03-10 3 <3′ 10×10 Grounded
S-OFB-15S03-10 3 <3′ 15×15 Grounded
S-OFB-15S05-10 5 <3′ 15×15 Grounded
S-OFB-20S03-10 3 <3′ 20×20 Grounded
S-OFB-25S05-10 5 <3′ 25×25 Grounded
S-OFB-30S05-10 5 <3′ 30×30 Grounded
S-OFB-1015R03-10 3 <3′ 10×15 Grounded
S-OFB-2535R05-10 5 <3′ 25×35 Grounded

 

Optical parallel

Part Number Thickness t [MM] Parallelism Diameter ØD [MM] Rear surface surface accuracy
S-OPB-25.4C03-10-5 3 <5″ Ø25.4 λ/10
S-OPB-25.4C05-10-5 5 <5″ Ø25.4 λ/10
S-OPB-30C03-10-5 3 <5″ Ø30 λ/10
S-OPB-30C05-10-5 5 <5″ Ø30 λ/10
S-OPB-40C04-10-5 4 <5″ Ø40 λ/10
S-OPB-40C06-10-5 6 <5″ Ø40 λ/10
S-OPB-50C06-10-5 5 <5″ Ø50 λ/10
S-OPB-50C08-10-5 8 <5″ Ø50 λ/10

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