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PRIME FOCUS CAGE AND CONCEPTUAL DESIGN FOR CAMERA CORRECTOR PRIME FOCUS “BLANCO 2.1dF” SPECIFICATIONS - STRUCTURAL STABILITY - FOCUSING -CALIBRATION -

Published byJoanna Thrasher Modified over 9 years ago

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Presentation on theme: "PRIME FOCUS CAGE AND CONCEPTUAL DESIGN FOR CAMERA CORRECTOR PRIME FOCUS “BLANCO 2.1dF” SPECIFICATIONS - STRUCTURAL STABILITY - FOCUSING -CALIBRATION -"— Presentation transcript:

1 PRIME FOCUS CAGE AND CONCEPTUAL DESIGN FOR CAMERA CORRECTOR PRIME FOCUS “BLANCO 2.1dF” SPECIFICATIONS - STRUCTURAL STABILITY - FOCUSING -CALIBRATION - SERVICEABILITY

2 POSSIBLE VOLUME FOR CAMERA AND SUPPORT ELECTRONICS

3 CORRECTOR IN SERVICE POSITION

4 OPTICAL FILTER MECHANISM - 2.1 deg. field - 4 FILTER LIMIT - ENVIRONMENTALLY PROTECTED

5 CONCEPTUAL DESIGN FOR SCROLL SHUTTER - CONSISTENCY / REPEATABILITY - SMOOTHNESS -CONTROL - TRANSIT TIME

6 CONCEPTUAL DESIGN FOR IRIS SHUTTER - CONSISTENCY / REPEATABILITY - SMOOTHNESS -CONTROL - TRANSIT TIME

7 SIZE COMPARISON BETWEEN IRIS AND SCROLL SHUTTER

8 January 17, 2004, Dark Energy Camera corrector and prime focus cage Cost estimates: Cage assembly75K Corrector lenses500K Corrector assembly500K Optical filters50K per filter200k Optical filters mechanism20K Scroll shutter15K Iris shutter30K Total scroll shutter 1310K Iris shutter 1325K Time estimate for completion - 24 months after issuance of contract for lenses Estimates are accurate within +/- 20%

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