Binocular telescope with off axis reflectors
CA 1093355 A · Owner: Hale, Arthur H. · Inventors: Hale, Arthur H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hale 6 c/w, BINOCULAR TELESCOPE WITH OFF AXIS REFLECTORS ABSTRACT OF THE DISCLOSURE, A binocular telescope having two separate essentially identical, optical systems. Primary reflector of each system is an off-axis paraboloid the axis being, at an edge of, or clear off the primary reflector. The diagonal plane mirrors or 45° prisms of conventional Newtonian telescopes are eliminated by using modified Porro prisms which produce corresponding images near adjacent inner portions of each optical system. Line joining axes of eye piece is inclined to optical axes for comfortable viewing. The off-axis primary mirrors cause less blockage than prior art Newtonian reflectors and in one …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.