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Layered lens array, production method for layered lens array, and production method for layered lens

A lens array and manufacturing method technology, applied in the direction of lenses, instruments, applications, etc., can solve the problems of increased working hours, outflow of defective products, and increased adjustment times.

Inactive Publication Date: 2015-08-26
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the eccentricity measurement is wrong, there will be problems such as increased man-hours due to increased number of adjustments, and defective products.

Method used

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  • Layered lens array, production method for layered lens array, and production method for layered lens
  • Layered lens array, production method for layered lens array, and production method for layered lens
  • Layered lens array, production method for layered lens array, and production method for layered lens

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach 〕

[0041] A) Laminated lens array

[0042] refer to Figure 1A , 1B and 2A to 2D describe the laminated lens array according to the first embodiment of the present invention. in addition, Figure 2A-2D It is a diagram illustrating the arrangement of the first to fourth, sixth and seventh marks U1 to U4, U6, and U7 on each optical surface 11a, 11b, 21a, and 21b. Arrangement of the first to fourth, sixth and seventh marks U1 to U4, U6, and U7 viewed from the surface 11a side.

[0043] Such as Figure 1A and 1B As shown, the laminated lens array 100 has, for example, a rectangular shape, and has a first lens array 10 , a second lens array 20 , and a spacer substrate 40 .

[0044] The first lens array 10 is made of glass, and has a plurality of lens portions 11 and a support body 12 connected to the plurality of lens portions 11 . The first lens array 10 is a plate-shaped member provided with a plurality of lens shapes when viewed macroscopically.

[0045] The respective lens po...

no. 2 Embodiment approach 〕

[0096] Hereinafter, the laminated lens array etc. which concern on 2nd Embodiment are demonstrated. In addition, the laminated lens array etc. of 2nd Embodiment are formed by deform|transforming the laminated lens array etc. of 1st Embodiment, and the part which is not demonstrated especially is the same part as 1st Embodiment.

[0097] Such as Figure 10 As shown, the first and second pairs of marks M1, M2a are respectively arranged at two positions along the side length direction. That is, the lens portions 11, 21 on the column L1 of the lens portions 11, 21 arranged in a matrix form are provided with the first, second, sixth and seventh marks U1, U2, U6 as the first pair of marks M1. , U7, the lens parts 11, 21 on the column L2 are provided with the third and fourth marks U3, U4 as the second pair of marks M2a. Thereby, it becomes easy to intuitively understand the direction of the rotational displacement of the 1st and 2nd lens array 10,20, Therefore The adjustment of ec...

no. 3 Embodiment approach 〕

[0099] Hereinafter, the laminated lens array etc. which concern on 3rd Embodiment are demonstrated. In addition, the laminated lens array etc. of 3rd Embodiment are formed by deform|transforming the laminated lens array etc. of 1st Embodiment, and the part which is not demonstrated especially is the same part as 1st Embodiment.

[0100] Such as Figure 11A As shown, the laminated lens array 300 has a first lens array 10 , a second lens array 20 , a third lens array 30 , and spacer substrates 40 and 50 . That is, the laminated lens array 300 is composed of three lens arrays.

[0101]The first and second lens arrays 10 and 20 and the spacer substrate 40 are the same as those of the first embodiment.

[0102] The structure of the third lens array 30 is substantially the same as that of the first lens array 10 , so the description thereof will be appropriately omitted below. The third lens array 30 is made of glass or resin, and has a plurality of lens units 31 and a support bo...

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Abstract

Provided is a layered lens array that comprises, as a plurality of lens arrays (10, 20), a first lens array (10) that includes a first lens section (K1) comprising a first mark (U1) on an object-side optical surface (11a) and a second mark (U2) on an image-side optical surface (11b) and a second lens section (K2) that comprises a third mark (U3) on either the object-side optical surface (11a) or the image-side optical surface (11b) and that does not comprise a mark on the other optical surface, and a second lens array (20) that includes a third lens section (K3) that comprises a fourth mark (U4) on either an object-side optical surface (21a) or an image-side optical surface (21b) and that does not comprise a mark on the other optical surface. The third mark (U3) and the fourth mark (U4) substantially overlap at the center of the object side or the image side when viewed from either of these sides.

Description

technical field [0001] The present invention relates to a laminated lens array in which two or more lens arrays are laminated, a method for manufacturing the laminated lens array, and a method for manufacturing a laminated lens obtained from the laminated lens array. Background technique [0002] In recent years, in the manufacture of lenses, instead of grinding, a molding method by transferring the shape of a mold is often used. Advantages of the molding method include that lenses can be produced in large quantities and at low cost by making a single mold, and aspherical surfaces, free-form surfaces, and array lenses that are difficult to produce by grinding can also be produced. In the case of molding by molding, if there is a misalignment between the positions of the two molds attached to the molding machine, misalignment (eccentricity) occurs between the upper surface and the lower surface of the molded lens. For a lens, there are cases where desired lens characteristic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00B29D11/00G02B7/02
CPCB29D11/00298G02B13/0085G02B3/0075G02B27/32G02B3/0062
Inventor 水金贵裕
Owner KONICA MINOLTA INC
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