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Recessed optical surfaces

A technology of optical blocks and optical surfaces, which is applied in the field of optical surfaces and can solve problems such as difficult processing steps

Active Publication Date: 2014-05-28
NANCHANG VIRTUAL REALITY RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the top of the convex lens is the highest point of the lens wafer, this can create difficulties for any processing step that requires the wafer to touch another surface
Convex lenses with unprotected surfaces are also generally more at risk of accidental damage

Method used

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  • Recessed optical surfaces
  • Recessed optical surfaces
  • Recessed optical surfaces

Examples

Experimental program
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Embodiment Construction

[0046] Figure 1A , Figure 1B , Figure 1C and Figure 1D A general method for producing convex lens arrays is described. Figure 1A A cross-sectional portion of a layer of replication material 104 deposited in some manner on the top surface of substrate 102 at an approximate desired thickness or volume is shown. exist Figure 1B In , a replica master 106 having a shape on its bottom surface corresponding to the inverse of the final desired shape is brought down to a known distance from the substrate. While held in this position, the replication layer 104 is cured using UV light, heat, time, pressure, or some other method. Subsequently, if Figure 1C As seen in , the master mold 106 is removed, leaving a lens wafer 100 with a plurality of lens elements 108 on the surface of the substrate 102 . Individual die on a wafer can be separated for immediate use, or can be left intact for further processing or attachment to other optical or spacer wafers. Although shown here f...

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PUM

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Abstract

An optics block includes a substrate having first and second opposing surfaces, the substrate being a first material, a plurality of through holes extending in the substrate between the first and second opposing surface, a second material, different than the first material, filling a portion of the through holes and extending on a portion of the first surface of the substrate outside the through holes, and a first lens structure in the second material and corresponding to each of the through holes.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the filing date of US Provisional Application No. 61 / 098,188, filed September 18, 2008, which is incorporated herein by reference. technical field [0003] This application relates to optical surfaces formed on substrates, such as wafers, and more particularly to optical surfaces formed on substrates in a fully or partially recessed state. Background technique [0004] Replication has become an increasingly popular technique for forming lenses, especially in large quantities. In this method, a flat substrate is provided, usually a wafer made of glass (although other substrates may be used), on which a replicating or other shapeable material is placed. The replication material is then shaped by a variety of curing methods; a common method is to stamp the replication material with a master die and cure the material to form the desired optical surface. Once the replication materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/00
CPCB29D11/00413G02B3/0031B29D11/00365G02B3/0062
Inventor 格雷戈里·J·金茨麦克尔·R·费尔德曼詹姆斯·E·莫里斯保罗·埃里奥特戴维·克勒W·哈德逊·韦尔奇戴维·奥维鲁特斯基杰里米·赫德尔斯顿马克·希亚特
Owner NANCHANG VIRTUAL REALITY RES INST CO LTD