Making A Refractor Telescope Norman Remer Pdf 12 New 2021 Online

To counteract this, Remer’s book centers on the , an objective assembly that aligns two distinct glass elements to bring two primary wavelengths of light (usually red and blue) to the exact same focal point:

A tiny air gap (often maintained by three small tabs of plastic or foil spaced 120 degrees apart) is usually required between the crown and flint lenses.

: For those who want to skip the math, Chapter 12 provides seven specific "prescriptions" for doublet lenses ranging from 3 to 8 inches in aperture . Key Stages of Lens Fabrication

LIGHT [ CROWN LENS ] [ FLINT LENS ] ======> __ __ __ __ ======> ( ) ( ) ( ) ( ) ======> FOCAL POINT ======> ~~ ~~ ~~ ~~ (Convex) (Concave) Analyzing Remer's Chapter 12 Prescriptions making a refractor telescope norman remer pdf 12 new

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Building a refractor telescope can be a fun and rewarding project. With careful planning and execution, you can create a functional and enjoyable telescope for stargazing. Norman Remer's design serves as a great starting point, and with these instructions, you can create your own refractor telescope. To counteract this, Remer’s book centers on the

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For those seeking guidance on a 12-inch refractor, the book serves as a critical conceptual and theoretical foundation. While its direct prescriptions stop at 8 inches, the design and figuring principles it explains are fully applicable to larger apertures. To pursue a 12-inch project, you would need to pair the knowledge from Remer's book with advanced optical design software or collaborate with an experienced optician, as the book itself does not include a turn-key prescription for this size.

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Once fine grinding is complete, you pour custom optical pitch laps to polish the glass to a completely transparent finish. Throughout this phase, managing is the absolute highest priority. You must use a specialized wedge tester to ensure that the physical edges of each lens element are perfectly uniform around the entire circumference. An uneven thickness will introduce severe astigmatism into your final views. 4. Testing and Fine-Tuning

Grinding a lens doublet requires working on (two for the crown, two for the flint), compared to just one surface for a standard reflector mirror.

Hand-polishing requires specific optical pitch (like Gugolz pitch) and polishing compounds (like Cerium Oxide). These can be found through lapidary supply shops or dedicated telescope-making vendors.

: Remer acts as a mentor, guiding readers through the technical hurdles of crafting a doublet lens with the same common tools used for mirror making. Design Tools : One of its most unique features is the inclusion of a