Mirrors I Have Known - my "optical c.v."
Here is a list of most of the mirrors I have made or refigured, in
order of size. Sometimes I list mirrors that I am currently
working on, too.
If
a material is not given (e.g., plate), it's Pyrex. Elliptical
flats are indicated by "m. a.". An asterisk indicates that a
professional optician made the mirror originally, and I reground or
refigured it.
Mirrors listed here include concave spheres, concave parabolas, concave
hyperbolas, convex hyperbolas, and elliptical and round flats.
I
enjoy working on a wide variety of custom optics, as you can see from
the list.
Size Focal Ratio, comments
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2.75" ROC = 16.9", Cervit
Rumak Maksutov-Cassegrain secondary
3" ROC = -25.5", test plate
3" ROC = 25.5", Cass
secondary
3.1" m.a. Flat, from Cave scope, refigured*
3.5" m.a. Flat, from Meade 16" scope, refigured*
3.5" m.a. Refigured commercial elliptical
flat
3.5" m.a. Refigured commercial
elliptical flat
3.5" m.a. Refigured commercial
elliptical flat
3.5" m.a. Refigured commercial
elliptical flat
3.5" m.a. Refigured commercial
elliptical flat
4" plate Flat (round), used for secondary testing
4" ROC = -47.5", test plate
4" ROC = 47.5", Cass
secondary
4" m.a. Refigured commercial elliptical
flat
4" m.a. Refigured
commercial elliptical flat
4" m.a. Refigured
commercial elliptical flat
4.25" F/4.5, in my 4.25" Newtonian
4.5" F/4.06, refigure
4.5" m.a. Refigured commercial elliptical flat
5" ROC = -49.9", test plate
5" ROC = 49.9", Cass
secondary
5.25" F/8.8 refigure,
in my 5.25" scope
5.5" m.a. Flat refigure, for our
30" F/3.8 scope
6" F/6
(for my first travel scope)
6" F/8
(old Criterion primary with bad TDE - see Hall of Shame)*
6" plate F/8 From a
commercial scope*. Was quite overcorrected.
6" m.a. Flat, figured to ~1/8th wave
6" m.a. Flat, figured to ~1/8th wave
6.5" m.a. Flat (7/8" Pyrex, astrograph
secondary)
8" F/3.9 - My first mirror
8" round Flat (1/2" Pyrex)
8" round Flat (3/4" Pyrex)
8"
F/4.5 refigure* (was Coulter)
8" F/5.4 (for my
travel scope)
8" ROC
= 24.24".
R-C secondary for 28" F/4.4 system, refigured.
8" m. a. Flat Cellular
mirror. Secondary
for 1.1m Newtonian.
8.25" m.a. Flat Solid Pyrex blank for a
large Newtonian.
9.13" plate F/4.3 For Russ Jocoy (see telescopes page)
10" plate F/6.8 refigure (in my 10" scope)
10" F/12.3 (reference
sphere)
10" F/6.3
refigure
10"
F/7 refigure
10" F/4.5
refigure* (horrifically rough optical surface, TDE)
10" F/8.8 (in my long
focus 10" scope)
10" F/5.5 (in my
shorter 10" scope)
10" F/6 Refigure of old Edmunds mirror
10" round Flat Figured for a friend
whose "reference flat" was actually not flat
12.5" F/6 (was
rough
Cave mirror* - see Hall of Shame)
12.5" F/6
(refigure)
12.5" F/4.2 (my perforated
Cass primary)
12.5" F/4 (was
half-corrected Cave mirror*)
12.5"
F/5 refigure, was Coulter*
12.5" F/6.07 refigure*
12.5" F/4.56 refigure (had
slight astigmatism, overcorrection)
12.5" F/4.77 refigure*
- was horrible commercial mirror with ~7 wave rolloff in
outer 1"
13.1" Plate F/4.5 3/4" plate glass for Russ Jocoy
(see telescopes page)
13.1" F/4.5 7/8" Pyrex
- now performing excellently in a Coulter tube.
13.1" F/4.5 1.25"
Pyrex. Was a rough Coulter*.
14.25" F/4.5 refigure*
14.25" F/3.75 (perforated Cass primary)
14.25" F/4.33 refigure
16" F/4
(my 16" scope)
16"
F/4.5 Meade Newt. primary refigure, was 0.5 waves
overcorrected.
16.25" F/3.76 (perforated Cass primary)
16"
F/4.9 1.4" thick, custom focal length within 0.1" of
target
16"
F/5 Mirror #1 for binoscope (ROC matched to #2
within 0.050")
16"
F/5 Mirror #2 for binoscope
16"
F/4 Refigure
16.5" F/3.7
16.5"
F/3.7
16.5"
F/3.7
16.5" F/3.7
16.5"
F/3.7
16.5"
F/3.7
16.5"
F/3.7
16.5" F/3.7
18" F/4.5
refigure*
18" F/4.4
refigure*
18" F/3.7
18" F/3.7
20"
F/3.3
Astrograph primary, 1.25" thick
20"
F/3 Future primary for fast Newt,
1.25" thick (in progress)
20"
F/3 Future primary for my own R-C, 1.25" thick
(in progress)
24"
F/4.8 2" Pyrex - primary mirror for my collimator
24"
F/4.5 1.63" Pyrex (see 24" F/4.5 telescope)
24"
F/3.5 Cellular mirror
24"
F/3.7
25" F/3.8
refigure
26" BVC
F/4.2 Grind, polish, figure. 1.75" thick.
28" F/4.5
refigure*, was astigmatic, zony, and had correction issues
28"
F/1.1 refigure (Perforated R-C primary for F/4.4 RC system)
28"
F/3.7 Strong hyperbola - completed
30" F/3.8 2.125"
thick, currently being refigured
32" BVC F/4 regrind*,
2"-thick blank (see 32" F/4 telescope)
43.4" F/4
Cellular blank, planned for mid-2008
48"
F/4 Cellular blank, planned for late-2008
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Mirrors I have helped others make:
6" F/8 (three so far)
6" F/6
8" F/6 (two), and several more of various sizes over email.