Reflecting Monocular Telescope with Aperture Mirror for Diffraction Reduction
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Solution Overview
Problem
Existing reflective telescope designs, such as Newtonian, Cassegrain, Gregorian, and Schmidt-Cassegrain types, suffer from diffraction issues due to secondary mirrors in the optical path, limited light transmission, and require external correctors for terrestrial use, making them less effective for magnified observations and more costly.
Innovation Solution
A reflecting monocular telescope design that redirects light by 90° using a flat mirror and a concave primary mirror, with a small central opening in the flat aperture mirror, allowing for improved diffraction performance, reduced light blockage, and intrinsic image correction, enabling better contrast and versatility in terrestrial and astronomical applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary mirror is used in the optical path (Newtonian, Cassegrain, Gregorian designs), then the telescope structure is stable and compact, but diffraction occurs and light is blocked reducing contrast performance
Solution Approach 1:
The invention removes the secondary mirror from the optical path entirely, replacing it with a hole in the primary mirror support structure. This extraction eliminates the diffraction and light blockage problems caused by secondary mirrors while maintaining the reflective telescope's structural advantages through careful design of the primary mirror support.
2Adaptability or versatility
If external image correctors are added to Newtonian telescopes for terrestrial use, then terrestrial observation is enabled, but device complexity and cost increase
Solution Approach 1:
The invention designs the optical system to provide both astronomical and terrestrial viewing capabilities through its inherent image orientation characteristics. The telescope can observe both celestial and terrestrial objects without requiring additional external correctors, making the system universal for multiple observation types while maintaining simplicity.
3Quantity of substance
If larger aperture sizes are used in refractive binoculars, then light gathering capability improves, but the instruments become too large and heavy to be practical
Solution Approach 1:
The invention replaces refractive lens systems with reflective mirror systems in binocular design. This substitution allows for larger aperture sizes to be achieved with mirrors, which can be made thinner and lighter than equivalent lens structures, thereby maintaining light gathering capability while reducing overall instrument size and weight.
4Ease of manufacture
If Newtonian telescopes are used for field applications, then the design is simple, but they require collimation with each use particularly when transported
Solution Approach 1:
The invention incorporates pre-adjusted mechanical structures that maintain optical alignment automatically. The design includes features such as rigid mirror mounting structures and alignment mechanisms that are pre-set during manufacturing to maintain collimation through transport and setup, eliminating the need for frequent user adjustment while keeping the overall design simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides enhanced optical performance, reduced cost, and increased usability for both terrestrial and celestial observations, including night vision applications, with improved handling and portability due to its compact, low-profile, and rugged construction.
Implementation Method 1
a flat mirror, a concave primary mirror, and an image correcting system located behind the flat mirror. The flat mirror reflects the incoming light from the telescope aperture into the concave primary mirror.
Implementation Method 2
This optical advantage results from improved diffraction performance, since those other reflective telescope types all involve putting a secondary mirror into the optical path which causes diffraction into the optical path, whereas the present invention uses a hole in the optical path which diffracts light away from the optical path, thus yielding better contrast performance.
Implementation Method 3
The image correcting system upright corrects the image while redirecting it by 90° for viewing with an eyepiece in line with the incoming light.
Data Source
AI summary
A correct image reflecting monocular/telescope, with apparent straight through the device seeing, well suited for telescope, binocular, or goggle applications, including low profile single-wave and multi-wave night vision devices; comprised of at least one flat mirror, one of which having a central aperture, a concave primary mirror, and an image correcting system with offset angle viewing. The flat mirror with central aperture reflects the incoming light from the monocular aperture into other flat mirrors or directly into the concave primary mirror. The converging reflected light from the primary mirror passes back through the small central opening in the flat aperture mirror and into an image correcting system. The image correcting system upright corrects and deflects the focal image of the primary mirror by an offset angle behind the flat aperture mirror for observation with an eyepiece or other means, making it useful in both terrestrial as well as celestial applications.