DE202010009374U1 - Light module for a channel camera and associated channel camera - Google Patents

Abstract

Luminous module for a channel camera (1) with an annular printed circuit board (6) on which a plurality of first light-emitting diodes (8) having a first emission angle (α) are arranged, characterized in that on the circuit board (6) a plurality of second light-emitting diodes (9) a second emission angle (β) are arranged, wherein the second emission angle (β) is greater than the first emission angle (α).

Description

The Innovation relates to a light module for a channel camera for protection claim 1.

channel cameras or inspection cameras to investigate inaccessible In areas such as pipes, channels, fireplaces or the like are sufficient known. Such cameras are hereafter referred to as channel cameras designated.

such Channel cameras are preferably placed at the end of a push cable and over the push cable into the object to be examined, preferably one Pipe or channel introduced. Furthermore, the supply of the channel camera with electrical energy also via the push cable. The channel camera consists of a preferably metallic housing in which a camera unit taken with a camera lens. The camera lens is arranged here at the front end of the camera body and preferably from surrounded by a light module. For this purpose, the light module has an annular printed circuit board with a plurality of light sources arranged thereon, in particular light-emitting diodes on. about the illuminant becomes the area to be examined by the channel camera illuminated the tube or channel. Disadvantage have known Light modules for Channel cameras only have bulbs of a given type, in particular normal light emitting diodes short LED ("Light Emitting Diode"). Also enable normal LEDs only insufficient illumination of the Examination environment, especially at close range.

Of the Structure and operation of conventional light-emitting diodes is sufficient known from the prior art. For optimized illumination The examination environment is also often light emitting diodes for the production of white Light, so-called "white LEDs" used.

outgoing this is the innovation of the task, a light source indicate which improved illumination of the examination environment of channel cameras, especially at close range. The object is based on the features of the preamble of the protection claim 1 solved by its characterizing features.

Of the essential aspect of the inventive lighting module is therein to see that on the circuit board several second light-emitting diodes are arranged with a second radiation angle, wherein the second Beam angle greater than the first emission angle is. Further advantageous are the second light-emitting diodes produced differently from the first light-emitting diodes in SMD construction. Due to the larger beam angle as the first light-emitting diodes and executed in SMD construction second LEDs result in a significant improvement in illumination of the near range.

In a preferred embodiment are the first and second light-emitting diodes for generating white light formed and arranged concentrically to the central longitudinal axis of the annular circuit board.

Farther Advantageously, the first light emitting diodes along the inner edge the annular PCB and the second LEDs along the outer edge the annular Circuit board arranged and preferably form a ring or Circular ring, wherein the number of first light-emitting diodes greater than the number of second light-emitting diodes is selected.

Farther Advantageously, the radiation angle of the second light-emitting diodes is greater than 100 °, preferably between 100 ° and 130 °, and the emission angle of the first light-emitting diodes smaller than 30 °, preferably between 15 ° and 30 °, selected.

The Innovation is to be explained below on the basis of exemplary embodiments closer with the figures explained become. In addition, developments, advantages and applications arise the innovation also from the following description of the embodiments and from the figures. All are described and / or illustrated illustrated features for itself or in any combination in principle the subject of the innovation, independently from their summary in the claims or their dependency. Also, the content of the claims made part of the description.

It but it is explicit noted that the innovation by no means to the specified Examples limited should be. Show it:

1 an example of a side view of a channel camera,

2 for example, a longitudinal section along the line AA through the channel camera according to 1 .

3 by way of example, a top view of the lighting module according to the invention for a channel camera according to FIG 1 and 2 , and

4 exemplified a sectional view taken along the line BB by the lighting module according to 3 ,

In the figures, the reference numeral 1 a channel camera or inspection camera, which at least one camera body 2 and a camera unit 3 includes. The camera body 2 forms the head module of an inspection system for duct systems.

Here is the channel camera 1 with a push cable 4 connected via which the channel camera 1 in the object to be examined, for example, a pipe, a channel or the like object is introduced with a hard to reach from the outside cavity. The camera unit 3 points to a free end 3 ' furthermore a camera optics 3 ' at least partially from a light module 5 , preferably a circular lamp module 5 is surrounded. This The modern lighting module 5 includes at least one annular circuit board 6 which concentric with the central longitudinal axis MLA of the light module 5 or the camera unit 3 is formed and for receiving the optics 3 '' the camera unit 3 a preferably annular opening 7 having.

On the circular circuit board 6 are several first light-emitting diodes 8th arranged, which preferably along the inner edge 6 ' the annular circuit board 6 are provided. Innovation are additionally on the circular circuit board 6 second light-emitting diodes 9 arranged, preferably along the outer edge 6 '' the circular circuit board 6 , The first light-emitting diodes 8th have a first radiation angle α and the second light-emitting diodes 9 a second emission angle β, the first emission angle α being smaller than the second emission angle β.

In a preferred embodiment, the second emission angle β corresponds to the second light-emitting diodes 9 approximately 4 to 5 times the first emission angle α of the first light-emitting diodes 8th ,

Preferably, the second radiation angle β of the second light-emitting diodes 9 greater than 100 ° and the first radiation angle α of the first light-emitting diodes 8th chosen smaller than 30 °. The first bulbs 8th For example, they can have a radiation angle between 15 ° and 30 °, preferably 20 °, whereas the second light-emitting diodes 9 have a radiation angle β of 100 ° to 130 °, preferably 115 °.

The first and second LEDs 8th . 9 are produced by different manufacturing processes, such as the second light-emitting diodes 9 different from the first light emitting diodes 8th manufactured in SMD (Service Mounted Device) construction. The first light-emitting diodes 8th are realized in the form of normal, commercially available light-emitting diodes.

The first and second LEDs 8th . 9 are preferably designed to produce white light and arranged concentrically to the central longitudinal axis MLA of the annular circuit board.

The number of first LEDs 8th is preferably smaller than the number of second light-emitting diodes 9 selected. Preferably, the first and second light-emitting diodes come 8th . 9 each on at least one ring or annulus with different radius about the central longitudinal axis MLA on the annular circuit board 6 to lie. Also, multiple rings of first light emitting diodes 8th be provided.

The power consumption of the first and second light-emitting diodes 8th . 9 is about 0.1 watts. These have a power consumption between 10 to 30 mA at an operating voltage between 2.9 volts to 3.4 volts.

The first light-emitting diodes 8th Depending on the operating parameters available, a light intensity between 14,000 mcd and 26,000 mcd and the second light emitting diodes 9 between 1600 mcd and 4000 mcd.

The first and second bulbs 8th . 9 are in a conventional manner by soldering with on the annular circuit board 6 mounted conductor tracks and interconnected according to the particular application, and preferably such that the first light-emitting diodes 8th independent of the second light emitting diodes 9 are switchable.

The Innovation has been described above in one embodiment. It is understood that numerous modifications and changes the innovation possible are without thereby leaving the innovation idea.

1

channel camera

2

camera housing

3

camera unit

3 '

free The End

3 ''

camera optics

4

pushcable

5

light module

6

circular circuit board

6 '

internal edge

6 ''

outer edge

7

circular opening

8th

first LEDs

9

second LEDs

MLA

central longitudinal axis

α

first Beam

β

second Beam

Claims (14)

Light module for a channel camera ( 1 ) with an annular printed circuit board ( 6 ), on which several first light-emitting diodes ( 8th ) are arranged with a first emission angle (α), characterized in that on the printed circuit board ( 6 ) a plurality of second light emitting diodes ( 9 ) are arranged with a second emission angle (β), wherein the second emission angle (β) is greater than the first emission angle (α). Light module according to claim 1, characterized that the second radiation angle (β) which is 4 to 5 times the first emission angle (α). Illuminating module according to claim 1, characterized in that the second emission angle (β) of the second light-emitting diodes ( 9 ) is greater than 100 °. Light module according to claim 3, characterized that the second radiation angle (β) between 100 ° and 130 °. Light module according to one of claims 1 to 4, characterized in that the first emission angle (α) of the first light-emitting diodes ( 8th ) is less than 30 °. Light module according to claim 5, characterized in that that the first emission angle (α) between 15 ° and 30 °. Light module according to one of claims 1 to 6, characterized in that the first and second light emitting diodes ( 8th . 9 ) are designed to generate white light. Light module according to one of claims 1 to 7, characterized in that the first and second light emitting diodes ( 8th . 9 ) concentric with the central longitudinal axis (MLA) of the annular printed circuit board ( 6 ) are arranged. Light module according to one of claims 1 to 8, characterized in that the first light-emitting diodes ( 8th ) in the region of the inner edge ( 6 ' ) of the annular circuit board ( 6 ) and the second light emitting diodes ( 9 ) in the area of the outer edge ( 6 '' ) of the annular circuit board ( 6 ) are arranged. Light module according to claim 9, characterized in that the first and second light emitting diodes ( 8th . 9 ) each form at least one ring or annulus. Light module according to one of the preceding claims, characterized in that the second light-emitting diodes ( 9 ) different from the first light-emitting diodes ( 8th ) are manufactured in SMD ("surface mounted device") construction. Light module according to one of the preceding claims, characterized in that the number of first light-emitting diodes ( 8th ) is greater than the number of second light-emitting diodes ( 9 ). Light module according to one of the preceding claims, characterized in that the annular printed circuit board ( 6 ) an opening ( 7 ) for at least partially recording the optics ( 3 '' ) of the camera unit ( 3 ) having. Channel camera comprising a camera body ( 2 ), a camera unit ( 3 ) and a luminaire module ( 5 ), characterized in that the camera body ( 2 ) for receiving a light module ( 5 ) is designed according to one of the preceding claims.