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Collimating system for providing highly efficient parallel light

A collimation, polymer technology, used in the field of collimation systems, can solve the problem of insufficient parallelism

Active Publication Date: 2021-04-30
SCHOTT GLASS TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of thermal expansion causes the position of the focal point to change so that the light rays from the lens are not sufficiently parallel to each other

Method used

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  • Collimating system for providing highly efficient parallel light
  • Collimating system for providing highly efficient parallel light
  • Collimating system for providing highly efficient parallel light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Simulate such as image 3 Collimation block shown:

[0079] A glass substrate (glass 1) having the following composition:

[0080]

[0081]

[0082] Polymer lens material: DELO OM614.

[0083] The working temperature is 25°C to 60°C.

[0084] Incident light wavelength: 940nm.

[0085] Original lens size: chord length 2mm, height 0.2mm.

[0086]

[0087] Simulation results:

[0088] Aperture angle θ=0.00156°.

[0089] Therefore, a very low aperture angle is achieved by combining Glass 1 and OM614 polymer lenses.

Embodiment 2

[0091] Simulate such as image 3 Collimation block shown:

[0092] A glass substrate (Glass 2) having the following composition:

[0093] components weight percentage SiO 2

61 B 2 o 3

11 Al 2 o 3

18 MgO 3 CaO 4 BaO 3

[0094] Polymer lens material: DELO OM614.

[0095] The working temperature is 25°C to 60°C.

[0096] Incident light wavelength: 940nm.

[0097] Original lens size: chord length 2mm, height 0.2mm.

[0098]

[0099] Simulation results:

[0100] Aperture angle θ=0.00164°.

[0101] Therefore, a very low aperture angle is achieved by combining Glass 2 and OM614 polymer lens.

Embodiment 3

[0103] Simulate such as image 3 Collimation block shown:

[0104] A glass substrate (glass 3) having the following composition:

[0105] components weight percentage SiO 2

70 B 2 o 3

0.1 Na 2 o

10 K 2 o

8 ZnO 4 CaO 6 BaO 2.5

[0106] Polymer lens material: DELO OM614.

[0107] The working temperature is 25°C to 60°C.

[0108] Incident light wavelength: 940nm.

[0109] Original lens size: chord length 2mm, height 0.2mm.

[0110]

[0111]

[0112] Simulation results:

[0113] Aperture angle θ=0.00257°.

[0114] Therefore, a very low aperture angle is achieved by combining Glass 3 and OM614 polymer lenses.

[0115] List of reference signs

[0116] 1 polymer lens

[0117] 2 polymer lenses

[0118] 3 polymer lenses

[0119] 4 polymer lens

[0120]11 Glass substrate

[0121] 12 glass substrate

[0122] 21 Light source substrates, especially VCSEL (Vertical Cavity Surface Emitting Laser) ...

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Abstract

Provided is a collimating system comprising at least one glass substrate (11, 12) and at least one polymer lens (1, 2, 3, 4) being present on at least one side of the substrate (11, 12). Provided is a component comprising the collimating system, at least one light source (22) and at least one light source substrate (21). Provided is a method of producing a collimating system and the use of the collimating system, in particular for 3D imaging and sensing, distance measurement, depth measurement, face recognition, and / or object recognition.

Description

technical field [0001] The invention relates to a collimation system. The present invention provides an efficient parallel light system, preferably for depth measurement or 3D imaging and sensing. The collimation system includes at least one glass substrate and at least one polymer lens present on at least one side of the substrate. The invention also relates to an assembly comprising a collimation system, at least one light source and at least one light source substrate. The invention also relates to a method of manufacturing a collimation system and the use of the collimation system, in particular for 3D imaging and sensing, distance measurement, depth measurement, facial recognition, object recognition, animation, 3D modeling, 3D scanning , mobile payment, fingerprint sensor, augmented reality / virtual reality and / or facial beauty. Background technique [0002] The principle of collimating lens is as follows figure 1 shown. In an ideal collimator, the light source is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00B29C39/10C03C21/00
CPCG02B27/30G02B3/0056G02B3/0068G02B3/0062G02B13/16G02B13/0085G02B7/008C03C3/091C03C3/093C03C4/0092C03C4/0071
Inventor 单延泉张广军卞海溢
Owner SCHOTT GLASS TECH (SUZHOU) CO LTD