Rod-like lens array mfg appts and its mfg. method

Abstract

The present invention provides a bond coating device, a stick-shaped lens arrangement bonding device, a stick-shaped lens array blank plate cutting device, a stick-shaped lens array manufacturing device which adopts the stick-shaped lens arrangement bonding device and the stick-shaped lens array blank plate cutting device and relevant methods. The coating device comprises a coating unit and a conveying mechanism and can coat necessary sufficient bond at the necessary parts of the surface of a base plate used for the stick-shaped lens arrays. The arrangement bonding device comprises a fixed plate, a movable plate, a guide mechanism and a forcing unit, has simple structure and light weight and can align exactly. The cutting device comprises a pair of cutting tools and a supply mechanism. Even if the stick-shaped lens array blank plates are linked with narrow intervals as the shape of bamboo curtain among the stick-shaped lens arrays, the cutting device can also separate the stick-shaped lens arrays accurately, and the operation cost is low.

Description

technical field [0001] The present invention relates to a rod lens array manufacturing apparatus, and more particularly to a rod lens array manufacturing apparatus and the like that manufacture a rod lens array in which a plurality of rod lenses are arranged in parallel between two substrates. Background technique [0002] A rod lens array with a plurality of rod lenses arranged in one or more rows between two substrates has been used as an optical element in copiers, electronic blackboards, and fax machines. [0003] As a method for manufacturing such a rod lens array quickly and with high yield, it is known (see Japanese Laid-Open Patent Publication No. 63-226619 for details): arranging a plurality of rod lenses 1 cut by a given length in a side-by-side state , at many places spaced apart in the length direction of the rod lens row, the fixed substrates 2, 4 are installed on both sides of the rod lens row, and a rod-shaped lens 1 with a plurality of rod lenses 1 arranged b...

AI Technical Summary

Problems solved by technology

If a sufficient amount of adhesive is not applied, the rod lens will not be firmly fixed, or the optical characteristics (MTF) will decrease due to light leakage between the rod lens and the substrate.

However, if the amount of adhesive applied is too much, not only will the adhesive be wasted and the manufacturing cost will increase, but also necessary operations will be performed to remove the adhesive extruded from the end faces of the rod lens array, etc. Adhesives that cause manufacturing equipment to fail

[0012] However, the above-mentioned adhesive coating device cannot coat the necessary and sufficient amount of adhesive on the necessary part, and there are the above-mentioned problems.

Moreover, there is also the problem that for substrates with grooves arranged on the surface, the bonding cannot be fully penetrated to the bottom of the grooves.

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