Versatile Space Telescope With Diamond-Turned Mirrors for CubeSats

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Solution Overview

Problem

Space telescopes for CubeSats are limited by size constraints and material composition, which affect optical performance and increase costs, and there is a need for telescopes capable of quantum communication and high-speed laser communications with applications in astronomy and Earth remote sensing.

Innovation Solution

A versatile space telescope design featuring an aluminum barrel body with diamond-turned aspheric mirrors, thermal control, and a hex plate with flexures, allowing for quantum key distribution and interfacing with spacecraft and instrument modules, using materials that degrade upon reentry to prevent debris and withstand thermal stress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the size of the CubeSat is increased to enhance optical performance, then the optical performance of the telescope is improved, but the cost increases

Engineering Contradiction:

Improveoptical performanceVSAvoidcost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The telescope is divided into modular components (barrel, mirrors, lens, hex plate, flexures) that can be manufactured separately and assembled, enabling precise optical components to be produced independently and integrated into a compact CubeSat platform, thus achieving high optical performance without proportionally increasing overall system cost

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs diamond turning process parameters and aspheric surface parameters to optimize the mirrors and lens, achieving superior optical performance through precise parameter control during manufacturing rather than simply scaling up the size of the entire telescope system

Inventive Principle:

Principle #35Parameter changes

2Strength

If conventional materials are used in the telescope structure, then the structural integrity is maintained, but dangerous debris is scattered upon reentry

Engineering Contradiction:

Improvestructural integrityVSAvoiddebris scattering

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent applies an ablation-resistant coating to the aluminum barrel that is designed to ablate and fragment into harmless particles during atmospheric reentry, converting the potentially harmful effect of structural failure into a beneficial safety feature that prevents dangerous debris scattering while maintaining structural integrity during operation

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Stability of the object's composition

If the telescope structure is rigid to maintain stability, then the structural stability is improved, but vibrations adversely impact telescope performance

Engineering Contradiction:

Improvestructural stabilityVSAvoidvibrations

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent employs flexible membrane dampers and vibration isolation elements within the telescope structure that allow controlled flexibility to absorb and dampen vibrations, reducing their impact on optical performance while maintaining overall structural stability during CubeSat operations

Inventive Principle:

Principle #30Flexible shells and thin films

4Adaptability or versatility

If the telescope is designed for multiple functions (quantum communication, laser communication, astronomy, remote sensing), then the versatility is improved, but the device complexity increases

Engineering Contradiction:

ImproveversatilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs a universal optical platform with configurable interfaces and standardized mounting systems that can accommodate different instruments and communication payloads, enabling the same basic telescope structure to serve multiple functions including quantum key distribution, laser communication, astronomy, and Earth remote sensing without requiring separate dedicated systems for each application

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enhances optical performance while reducing costs and enabling quantum communication and high-speed laser communications for CubeSats, while ensuring safe reentry and thermal stability.

Implementation Method 1

a first diamond turned, aspheric aluminum mirror having an entrance pupil and positioned adjacent the distal end of the barrel shaped body and sharing the longitudinal optical axis; a second diamond turned, aspheric aluminum mirror creating an exit pupil and positioned adjacent the proximal end of the barrel shaped body and sharing the longitudinal optical axis

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

at least one heater integrated with the barrel shaped body to provide thermal control

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 3

a plurality of flexures interconnecting the hex plate to the first mirror

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentUS12422662B2Versatile space telescope

Publication Date: 2025.09.23 THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

AI summary

A versatile space telescope for quantum key distribution and adapted for interfacing with a spacecraft and an instrument module. The telescope includes diamond turned aluminum mirrors at its entrance and exit, adjacent the spacecraft and instrument module, respectively.