# US 2017/0285446 A1 · Filter holder

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- Number: US 2017/0285446 A1
- Document ID: US20170285446A1
- Status: Published application
- Kind: A1
- Application number: 15/459,511
- Filed: 2017-03-15
- Published: 2017-10-05
- Earliest claimed: 2016-03-15
- Assignees: Tpl Vision
- Applicants: Tpl Vision
- Inventors: Guillaume MAZEAUD
- Web page: https://patentgrep.com/patent/US20170285446A1

## CPC

- G03B 17/565: {Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors}
- G02B 7/006: {Filter holders}
- G03B 11/00: Filters or other obturators specially adapted for photographic purposes
- G03B 17/566: {Accessory clips, holders, shoes to attach accessories to camera (if integral part of camera body G03B17/02)}
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

Filter holder (10) having a tubular overall shape and made of an elastic material, an annular groove (40) being formed on the interior surface of the filter holder.

## Claims

### Claim 1

Filter holder having a tubular overall shape and made of an elastic material, an annular groove being formed on the interior surface of the filter holder, the filter holder comprising a skirt delimited by an annular thinning, so as to be mobile between deployed and bunched positions in which it extends on one side or the other of the annular thinning, respectively.

### Claim 2 (depends on 1)

Filter holder according to claim 1, the elastic material being chosen so that, from a rest position, the smallest interior diameter of the filter holder can be widened by more than 5%.

### Claim 3 (depends on 1)

Filter holder according to claim 1, in which the annular groove extends less than 20 mm from one end of the filter holder.

### Claim 4 (depends on 1)

Filter holder according to claim 1, comprising a bellows allowing the diameter of the annular groove to be enlarged so that a filter can be housed therein.

### Claim 5 (depends on 1)

Filter holder according to claim 1, in which the annular groove has a width greater than 1 mm and less than 5 mm.

### Claim 6 (depends on 1)

Filter holder according to claim 1, the filter holder being made of a single elastic material, the elasticity of the material allowing the resting diameter of the annular groove to be increased by more 1 mm.

### Claim 7 (depends on 1)

Filter holder according to claim 1, of which the smallest interior diameter at rest is greater than 20 mm.

### Claim 8 (depends on 1)

Assembly comprising: a filter holder according to claim 1 and several filters of different diameters and configured to be arranged in the annular groove of the filter holder and/or several photographic lenses of different diameters and on which the filter holder may be mounted.

### Claim 9 (depends on 2)

Filter holder according to claim 2, wherein the filter holder can be widened by more than more than 7%.

### Claim 10 (depends on 2)

Filter holder according to claim 2, wherein the filter holder can be widened by more than more than 10%.

### Claim 11 (depends on 3)

Filter holder according to claim 3, in which the annular groove extends less than 10 mm from one end of the filter holder.

### Claim 12 (depends on 3)

Filter holder according to claim 3, in which the annular groove extends less than 5 mm from one end of the filter holder.

### Claim 13 (depends on 4)

Filter holder according to claim 4, wherein the diameter of the annular groove is able to be enlarged so that a filter can be housed therein substantially without deformation of the filter holder on the opposite side of the bellows to the annular groove.

### Claim 14 (depends on 6)

Filter holder according to claim 6, the filter holder being made of a single elastic material by hand.

### Claim 15 (depends on 7)

Filter holder according to claim 7, of which the smallest interior diameter at rest is greater than 25 mm and/or less than 35 mm.

### Claim 16 (depends on 7)

Filter holder according to claim 7, of which the smallest interior diameter at rest is less than 30 mm.