Tasco 1575 - Manual (Page 117)

Precision Optics-Flats
PRECISION LEBG 25MM SQUARE 1/4 WAVE FLAT MIRROR
Manufacturer's part#02 MFG 001/02825-mm Square
Mirror, UV Enhanced Aluminum, 6mm thick. Made of
LEBG (Low Expansion Borosilicate Glass) which is Pyrex
made by Corning.Original Unit Price: $46.00 (before
coating) Wavelength: Visible, Near IR 400-800nm.
PM1013 $12.75
PRECISION 30MM 1/20TH WAVE FUSED SILICA OPTICAL
FLAT, CTD
Here's a great 1/20th wave fused silica flat (could be
aluminized and made into an ultra flat mirror). 6mm
thick. Manufacturer's part# 02 MLQ 012/257. The
top is polished 1/20th wave flat and the bottom is
ground but not polished. Beautiful Bluish/purple anti-
reflective coating!
PM1017 $32.75
PRECISION ZERODUR 50MM DIAMETER 1/20TH WAVE
OPTICAL FLAT
Manufacturer's part#02 MLE 015, original unit price:
$303. Wavelength range is Visible to Near IR, 400-
800 nm. Flatness is 1/20th wave, polished on the top
and ground (but not polished) on the bottom. Thickness
is 10mm, clear aperture of 45mm, parallelism of 3 arc
minutes. Made of Zerodur, surface quality is 60-40
scratch and dig. These were made with the intention
of being aluminized, making an ultra flat mirror. Unused.
PM1034 $50.00
PRECISION 100MM DIAMETER LEBG 1/10TH WAVE OPTICAL FLAT
Manufacturer's part#02 MPG 017. Original unit price:
$455.00. Wavelength range is Visible, Near IR 400-
800 nm. 100mm diameter by 19mm thick with a clear
aperture of 90mm, surface quality of 60-40 scratch
and dig. 1/10th wave made of LEBG (Low expansion
borosilicate glass). These were designed to be made
into ultra flat mirrors. Top is polished, bottom is
ground but not polished. Unused.
PM1036 $75.00
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