Supercharge Your Innovation With Domain-Expert AI Agents!

Devices for optical cooling of objects

A device, technology of objects, applied in the field of devices for optical cooling of objects

Active Publication Date: 2021-08-27
SOLCOLD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this regard, anti-Stokes-based cooling methods have not yet been applied under the conditions of temperature and non-monochromatic radiation
This shortcoming further limits the use of the anti-Stokes effect in relatively small-scale applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Devices for optical cooling of objects
  • Devices for optical cooling of objects
  • Devices for optical cooling of objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0106] As mentioned above, Fig. 1(a) (reproduced from Nemova G., Laser Cooling of Solids, page 4, Figure 1(a) to Figure 1(b) ) shows a 4-level model for optical cooling of RE-doped glasses such as Yb 3+ : ZBLANP. Although the figure originally deals with laser cooling, it is equally relevant for broadband radiation. Specific calculations for the Level 4 model are shown in Fig. 1(b) (units are cm -1 ).

[0107] Optical cooling in semiconductors in figure 2 is schematically illustrated in , and has been discussed earlier in this application. Upconverting excitation photons resulting from thermal equilibrium between adjacent excitation levels results in the emission of photons with higher energies than the absorbed photons. Thus, the optical cooling effect in semiconductor materials is achieved through phonon absorption and conversion of thermal energy to electromagnetic energy.

[0108] image 3 (Reproduced from Jun Zhang, Dehui Li, Renjie Chen, Qihua Xiong, Laser Cooli...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Double or multilayer devices or devices for optical anti-Stokes cooling of object surfaces. The device includes: at least one bottom layer configured to respond with anti-Stokes fluorescence upon absorption of electromagnetic radiation; and at least one top layer disposed on the bottom layer and configured to filter electromagnetic radiation and absorb selected spectral bands of the electromagnetic radiation transmitted to the bottom layer. Active cooling does not rely on the coherent nature of radiation, which enables the use of incoherent solar radiation as an input energy source for active cooling. The cooling technique of the present invention is applicable on both small and large scales, and is practically applicable to any object that has a surface on which a layered substance can be applied or laid down, such as roofs, walls, cars, boats, tents, clothing, etc.

Description

technical field [0001] The present invention relates to cooling using anti-Stokes fluorescence. More specifically, the present invention relates to cooling techniques using absorption of incoherent non-monochromatic electromagnetic / solar radiation and anti-Stokes fluorescence. Background technique [0002] Laser cooling of solids is a phenomenon in which interaction with radiation results in efficient cooling in solid materials. This idea was proposed by Pringsheim as early as 1929. It was not until 1995 that Epstein et al. achieved laser cooling of solids, and they managed to cool solids down to 0.3K (Epstein 1995), also known as optical cooling of solids. This is a rapidly developing field where the state of the art is the cooling of solids to cryogenic temperatures down to 100K (Melgaard 2016). In the solid phase of matter, much of the thermal energy of the matter is contained in the vibrational modes of the lattice. Therefore, the reduction in vibratory motion of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25D31/00G02F1/35
CPCF25D31/00F25D2400/26F25B23/003
Inventor Y·申哈夫G·格罗塔斯
Owner SOLCOLD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com