CASSEGRAINIAN MIRROR BLANKS

(APPROXIMATE MEASUREMENTS)

Description

PRIMARY MIRROR

SECONDARY MIRROR

OTHER

PRODUCT CODE

DIA.

THK

HOLE

CC RAD

DIA

CX RAD

B

D

EFL

F/D

PRODUCT CODE WITH TOOLING

PRODUCT CODE WITHOUT TOOLING

8.00"

1.375"

1.5"

40.00"

2.55"

14.68"

6.500"

13.52"

56"

7.00

CG800.70 CG800.70NT

10.00"

1.875"

2.0"

50.00"

2.44"

24.83"

8.120"

16.90"

70"

7.00

CG1000.70 CG1000.70NT

12.00"

2.125"

3.0"

60.00"

2.90"

29.79"

9.750"

20.25"

84"

7.00

CG1200.70 CG1200.70NT

16.00"

2.620"

3.0"

80.00"

3.90"

39.72"

13.000"

27.00"

112"

7.00

CG1600.70 CG1600.70NT

8.00"

1.375"

1.5"

64.00"

2.00"

26.53"

6.500"

24.30"

128"

16.00

CG800.16 CG800.16NT

10.00"

1.875"

2.0"

80.00"

2.44"

25.66"

8.125"

25.66"

160"

16.00

CG1000.16 CG1000.16NT

12.00"

2.125"

2.5"

96.00"

2.90"

30.79"

9.750"

36.45"

192"

16.00

CG1200.16 CG1200.16NT

16.00"

2.620"

3.0"

128.00

3.90"

41.06"

13.000"

13.00"

256"

16.00

CG1600.16 CG1600.16NT

* Other

The Cassegrainian mirror blanks have a started hole molded into the blank which comes within a to of an inch of the designated mirror surface. This eliminates the need to core drill through the blank and then inserting a plug for surface stability prior to polishing. All the blanks are fine annealed Pyrex 7740. Precision annealed blanks can be supplied upon request.

The primary is a full parabola and the secondary is a hyperbola.

The designs have been contributed by Max Bray, Phoenix, Arizona.

*Other sizes and shapes can be made to meet the fabricator's specifications. Please submit a drawing with the necessary dimensional requirements clearly stated to facilitate our quotation process.