Lens device and method for manufacturing lens device

Abstract

The invention relates to a lens device (1) for a rigid endoscope, comprising a tubular optical carrier (2), for example a system tube, and at least one lens (3), which is arranged in the optical carrier (2). The lens (3) is fastened within the optical carrier (2) by means of at least one axial stop (10). The axial stop (10) is formed by deformation of the optics carrier (2).

Description

technical field [0001] The invention relates to a lens arrangement having at least one lens and a tubular optics carrier in which the lens is arranged. Background technique [0002] Such lens arrangements are known and are used, for example, in rigid endoscopes. [0003] In the prior art, for example, system tubes are known as optics carriers, into which one or more lenses are inserted. So-called spacer sleeves are arranged between the individual lenses, which hold the lenses in the desired position. [0004] It has been found that the production of such system pipes is very complicated and expensive, because on the one hand the spacer sleeves have to be produced with very high precision, but are very small in size and very thin-walled, and on the other hand because the spacer sleeves It must be pushed through the entire system tube into its working position. [0005] A further disadvantage in known lens arrangements is that the spacer sleeve cuts the beam path and thus v...

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Problems solved by technology

[0004] It has been found that the production of such system pipes is very complicated and expensive, because on the one hand the spacer sleeves have to be produced with very high precision, but are very small in size and very thin-walled, and on the other hand because the spacer sleeves must be pushed through the entire system tube into its working position

[0005] In known lens arrangements, another disadvantage is that the spacer sleeve cuts the light path and thus vignetts the image

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