DE202011051168U1 - Optical lens and lighting device with this optical lens - Google Patents

Abstract

An optical lens defining an optical axis (I), comprising a main body (131), comprising: a light entry part (132) including a bottom surface (1320) and a reflection surface (1322), the bottom surface (1320) having a recess (1321), the reflection surface (1322) being connected to the bottom surface (1320), the distance of the reflection surface (1322) from the optical axis (I) increasing in the opposite direction of the bottom surface (1320), a first light exit part ( 134), which is connected to the reflection surface (1322) and has an end face (135) which approaches the lower surface (1320) in the direction of the optical axis (I), and a second light exit part (136) which is located above the recess (1321).

Description

Technical area

The invention relates to an optical lens, in particular an optical lens, which has a reflection surface, which can generate an internal full reflection.

State of the art

The light-emitting diode has the advantages of a small volume, a long life, a breaking strength, a low power consumption and no mercury content and thus replacing more and more the light bulb. As a result, the light emitting diode finds an ever wider application to lighting and decoration.

In order to increase the lighting effect of the light emitting diode, the conventional light emitting diode, which is formed as a bulb, a reflector and an optical lens. The reflector is made of metal or plastic with a reflective metal layer. The optical lens is arranged on the reflector and encloses the light emitting diode. The optical lens is made of transparent material such as glass or resin, and may be a convex lens, a concave lens, or a Fresnel lens as needed. Through the optical lens, the light of the light emitting diode can achieve a desired light intensity distribution.

For the brightness of the light-emitting diode bulb to reach that of the fluorescent tube or the light bulb, the power of the light-emitting diode must be increased. At the same time, the heat of operation increases.

Since the reflector and the optical lens are made of different materials, they have a different thermal expansion coefficient. When the LED is lit for a long time, the reflector and the optical lens can be deformed by the heat of the LED, thereby reducing the connection tightness of the optical lens and the reflector so that the optical lens can be released.

Object of the invention

The invention has for its object to provide an optical lens having a reflection surface, which can generate an internal full reflection, whereby the direction of the light beam is changed, so that the light beam exits through the first light exit part.

This object is achieved by the optical lens according to the invention, which defines an optical axis and comprises a main body comprising: a light entry part including a bottom surface and a reflection surface, the bottom surface forming a recess, the reflection surface being connected to the bottom surface, wherein the distance of the reflection surface from the optical axis increases in the opposite direction of the lower surface; a first light emitting part connected to the reflecting surface and having an end surface approaching in the optical axis direction of the lower surface; and a second light exit part located above the recess.

The invention further relates to a lighting device comprising: a support having a peripheral wall forming a receiving space; a lighting unit including a circuit board and at least one light emitting diode, wherein the circuit board is disposed in the accommodating space, the light emitting diode being disposed on the circuit board; an optical lens comprising: a light entrance part including a bottom surface and a reflection surface, the bottom surface forming a recess, the reflection surface being connected to the bottom surface, the distance of the reflection surface from the optical axis increasing in the opposite direction of the bottom surface ; a first light emitting part connected to the reflecting surface and having an end surface approaching in the optical axis direction of the lower surface; and a second light exit part located above the recess; and a pedestal connected to the side of the carrier remote from the optical lens.

The optical lens has a reflection surface that can change the direction of the light beam so that the light beam exits through the first light exit part. The first light exit part is stepped, thereby shortening the beam path in the main body, so that the light loss in the main body is reduced and the volume and weight of the optical lens are reduced.

Brief description of the drawings

1 an exploded view of the first embodiment of the lighting device according to the invention,

2 a perspective view of the first embodiment of the lighting device according to the invention,

3 a sectional view of the first embodiment of the lighting device according to the invention,

4 a sectional view of the first embodiment of the optical lens according to the invention and the beam path,

5 a diagram of the luminous intensity distribution,

6 (a) a representation of the refraction and the reflection of the light beam,

6 (b) a representation of the internal full reflection of the light beam,

7 a sectional view of the second embodiment of the optical lens according to the invention and the beam path,

8th a sectional view of the third embodiment of the optical lens according to the invention and the beam path,

9 a sectional view of the fourth embodiment of the optical lens according to the invention,

10 a perspective view of the second embodiment of the lighting device according to the invention,

11 a perspective view of the third embodiment of the lighting device according to the invention,

12 a sectional view of the third embodiment of the lighting device according to the invention,

13 an exploded view of the fourth embodiment of the lighting device according to the invention,

14 a sectional view of the fourth embodiment of the lighting device according to the invention.

Ways to carry out the invention

Like from the 1 and 2 can be seen, comprises the lighting device according to the invention 10 a carrier 110 , a lighting unit 120 , an optical lens 130 , a support element 140 , a hook element 150 and a pedestal 160 ,

The carrier 110 is made of metal, such as aluminum, and formed cup-shaped. The carrier 110 has a circumferential wall 114 holding a recording room 112 forms, and a variety of cooling fins 116 on, with the surrounding wall 114 are connected. The cooling fins 116 are with the encircling wall 114 formed in one piece. The inside 115 the surrounding wall 114 has at least one positioning projection 117 , at least one positioning recess 118 and at least one opening 119 ,

The lighting unit 120 includes a circuit board 122 , at least one light emitting diode 124 and a control chip 126 , The circuit board 122 has a positioning notch 123 and is in the recording room 112 arranged, wherein the positioning projection 117 into the positioning groove 123 engages a movement of the circuit board 122 to prevent. On the circuit board 122 a circuit (not shown) is provided. In the present embodiment, the circuit board 122 an MCPCB (Metal Core Printed Circuit Board), which has a good thermal conductivity and the heat of the light emitting diode 124 can derive quickly. In practice, the invention is not limited thereto.

The light-emitting diode 124 is on the circuit board 122 arranged and electrically connected to this. The light-emitting diode 124 may be an AC powered light emitting diode powered directly by an AC power such as AC110V. The light-emitting diode 124 may also be a DC driven light emitting diode connected to an AC-DC converter circuit (not shown). The AC-DC converter circuit is connected to an external AC power source, such as AC110V, and can convert the AC power into DC power to drive the LED with DC power. The voltage AC110V is an example. The invention is not limited thereto. Another AC or DC is also possible, such as 220 VAC. The control chip 126 is on the circuit board 122 arranged and electrically connected to the working state of the light emitting diode 124 to control how locking or passing the stream.

Like from the 3 and 4 is apparent, is the optical lens 130 above the light unit 120 arranged. The light of the LED 124 falls into the optical lens 130 , which changes the light intensity distribution.

The optical lens 130 defines an optical axis I, which forms the central axis of the optical system. The optical lens 130 has a translucent main body 131 on, which is made by a translucent material, such as glass and plastic. The main body 131 has a light entry part 132 , a first light exit part 134 and a second light exit part 136 , The light entry part 132 includes a bottom surface 1320 and a reflection surface 1322 , The lower surface 1320 forms a recess 1321 for the light-emitting diode 124 which is a light towards the optical lens 130 generated. The reflection surface 1322 is with the bottom surface 1320 and the first light exit part 134 connected. The distance of the reflection surface 1322 from the optical axis I increases in the opposite direction of the lower surface 1320 , The first light exit part 134 is with the reflection surface 1322 connected and has an end face 135 extending in the direction of the optical axis I of the lower surface 1320 approaches. The face 135 has a plurality of first light exit surfaces 1342 and second light exit surfaces 1344 which are arranged alternately. In the present embodiment, the first light exit surfaces 1342 parallel to the lower surface 1320 , The second light exit surfaces 1344 are vertical to the bottom surface 1320 , This is the first light exit part 134 stage. The length of the second light exit surfaces 1344 that are vertical to the lower surface 1320 are, decreases in the direction of the optical axis I. This makes the beam path to the light exit part 134 shortened, so that the light loss in the optical lens 130 is reduced. Furthermore, the thickness and the weight of the optical lens 130 be downsized. The second light exit part 136 is with the face 135 connected and is located above the recess 1321 , The second light exit part 136 is formed by a Fresnel lens and the light can converge or diverge. In the present embodiment, the second light exit part 136 and the first light exit part 134 formed in one piece.

How out 4 can be seen, the LED protrudes 124 into the recess 1321 and generates a light in the direction of the optical lens 130 , The reflection surface 1322 generated for a part of the incident light of the optical lens 130 an internal total reflection (TIR) and changes its direction, causing the light beam through the first light exit part 134 exit. The remaining part of the incident light of the LED 124 passes through the second light exit part 136 out. 5 shows the light intensity distribution. The failure light of the optical lens 130 is in a range of 20 ° around the optical axis (0 °).

When the light passes through a first medium n1 having the first refractive index into a second medium n2 having the second refractive index, a part of the light beam is reflected at the interface S of the first medium n1 and the second medium n2. The rest of the light beam is broken, as is in 6 (a) is shown. In the present embodiment, the second refractive index is greater than the first refractive index. In order to satisfy Snell's law, the reflection angle θr corresponds to the incident angle θi, and the refraction angle et is larger than the incident angle θi.

When the refractive index of the first medium is larger than that of the second medium, the incident angle θi is greater than or equal to the critical angle of total internal reflection. The light beam incident through the first medium n1 into the second medium n2 is reflected back to the first medium n1 at the interface S, as shown in FIG 6 (b) shown. This is called internal total reflection.

How out 4 can be seen, generates the light emitting diode 124 a light in the direction of the optical lens 130 , wherein a part of the incident light on the reflection surface 1322 incident. As the refractive index of the optical lens 130 is greater than that of the air and the distance of the reflection surface 1322 from the optical axis 1322 in the opposite direction of the lower surface 1320 Enlarged, the angle of incidence at the reflecting surface can be increased 1322 greater than or equal to the critical angle of total internal reflection. Therefore, the light beam is completely reflected at the reflection surface, whereby the direction of the light beam is changed so that the light beam passes through the first light exit part 134 exit.

Like from the 1 to 3 it can be seen, is the support element 140 between the optical lens 130 and the carrier 110 arranged and through a variety of screws 141 on the carrier 110 attached. At the same time, the support element attaches 140 the circuit board 122 and supports the optical lens 130 , so the optical lens 130 above the LED 124 lies. In the present embodiment, two screws 141 intended. The support element 140 has a variety of notches 142 and at least one positioning element 144 on. The positioning element 144 engages in the positioning recess 118 a, to a movement of the support element 140 to prevent.

The hook element 150 has a variety of hooks 152 on, gets into the breakthroughs 119 pushed and lies on the optical lens 130 , The hooks 52 hook in the notches 142 , causing the optical lens 130 in the support element 140 is limited and the light emitting diode 124 into the recess 1321 protrudes.

The base 160 is with the optical lens 130 opposite side of the carrier 110 connected and has a housing 162 on. The housing 162 has an open side 164 , a closed page 165 , a recording room 166 and two connections 168 , The open side 164 is with the carrier 110 connected. The recording room 166 is located between the open side 164 and the closed side 165 and takes a drive circuit board 11 on that with the light unit 120 electrically connected. When the light emitting diode 124 is operated with DC, the drive circuit board 11 include an AC-DC converter circuit to convert the AC to DC. The two connections 168 are through the closed side 165 guided and with the drive circuit board 11 electrically connected. In the present embodiment, the terminals 168 GU10 connectors.

The lighting device 10 further includes a reflector 170 that is between the optical lens 130 and the support element 140 is arranged to pass through the reflection surface 1322 Reflecting light beam through, so that the failure light of the first light exit part 134 and the second light exit part 136 is increased.

Due to the angle of inclination of the first light exit surface 1342 of the first light exit part 134 the optical lens 130 opposite to the vertical surface of the optical axis I, the direction of the light beam can be changed. 7 shows the second embodiment of the optical lens. The optical lens 130a defines an optical axis I. The optical lens 130a has a translucent main body 131 on. The main body 131 has a light entry part 132 , a first light exit part 134a and a second light exit part 136 , The light entry part 132 includes a bottom surface 1320 and a reflection surface 1322 , The lower surface 1320 forms a recess 1321 , The reflection surface 1322 is with the bottom surface 1320 and the first light exit part 134a connected. The distance of the reflection surface 1322 from the optical axis I increases in the opposite direction of the lower surface 1320 , The light-emitting diode 124 protrudes into the recess 1321 and generates a light in the direction of the optical lens 130a ,

The first light exit part 134a is with the reflection surface 1322 connected and has an end face 135a extending in the direction of the optical axis I of the lower surface 1320 approaches. The face 135a has a plurality of first light exit surfaces 1342a and second light exit surfaces 1344a which are arranged alternately. The first light exit surfaces 1342a have an inclination angle with respect to the vertical surface of the optical axis I. The second light exit surfaces 1344a are vertical to the bottom surface 1320 , In this embodiment, the first light exit surfaces incline 1342a towards the vertical surface of the optical axis I inwards. The length of the second light exit surfaces 1344a that are vertical to the lower surface 1320 are smaller in the direction of the optical axis I. As a result, the failing light of the first light exit part 134a collected in the direction of the optical axis I. The second light exit part 136 is with the face 135b connected and is located above the recess 1321 , The second light exit part 136 is formed by a Fresnel lens. In the present embodiment, the second light exit part 136 and the first light exit part 134a formed in one piece. In practice, the invention is not limited thereto.

8th shows the third embodiment of the optical lens. The optical lens 130b defines an optical axis I. The optical lens 130b has a translucent main body 131b on. The main body 131b has a light entry part 132 , a first light exit part 134b and a second light exit part 136 , The light entry part 132 includes a bottom surface 1320 and a reflection surface 1322 , The lower surface 1320 forms a recess 1321 , The light-emitting diode 124 protrudes into the recess 1321 and generates a light in the direction of the optical lens 130 ,

The reflection surface 1322 is with the bottom surface 1320 and the first light exit part 134b connected. The distance of the reflection surface 1322 from the optical axis I increases in the opposite direction of the lower surface 1320 , The first light exit part 134b is with the reflection surface 1322 connected and has an end face 135b extending in the direction of the optical axis I of the lower surface 1320 approaches. The face 135b has a plurality of first light exit surfaces 1342b and second light exit surfaces 1344b which are arranged alternately. The first light exit surfaces 1342b have an inclination angle with respect to the vertical surface of the optical axis I. The second light exit surfaces 1344b are vertical to the bottom surface 1320 , In this embodiment, the first light exit surfaces incline 1342b towards the vertical surface of the optical axis I to the outside. The length of the second light exit surfaces 1344b that are vertical to the lower surface 1320 are smaller in the direction of the optical axis I. As a result, the failing light of the first light exit part 134b in the direction of the optical axis I scattered. The second light exit part 136 is with the face 135b connected and is located above the recess 1321 , The second light exit part 136 is formed by a Fresnel lens. In the present embodiment, the second light exit part 136 and the first light exit part 134b formed in one piece. In practice, the invention is not limited thereto.

9 shows the fourth embodiment of the optical lens. The optical lens 230 defines an optical axis I. The optical lens 230 has a translucent main body 231 on. The main body 231 has a light entry part 232 , a first light exit part 234 and a second light exit part 236 , The light entry part 232 includes a bottom surface 2320 and a reflection surface 2322 , The lower surface 2320 forms a recess 2321 , The reflection surface 2322 is with the bottom surface 2320 and the first light exit part 234 connected. The distance of the reflection surface 2322 from the optical axis I increases in the opposite direction of the lower surface 2320 , The first light exit part 234 is with the reflection surface 2322 connected and has an end face 235 extending in the direction of the optical axis I of the lower surface 2320 approaches. The face 235 has a plurality of first light exit surfaces 2342 and second light exit surfaces 2344 which are arranged alternately. The first light exit surfaces 2342 are parallel to the bottom surface 2320 , The second light exit surfaces 2344 are vertical to the bottom surface 2320 , This is the first light exit part 234 stage. The length of the second light exit surfaces 2344 that are vertical to the lower surface 2320 are smaller in the direction of the optical axis I. In practice, the first light exit surfaces 2342 as in the second and third embodiments with respect to the vertical surface of the optical axis I have an inclination angle. The second light exit part 236 is formed by a Fresnel lens and the light can converge or diverge. In this embodiment, the second light exit part 236 in the first light exit part 234 arranged.

10 shows the second embodiment of the lighting device 20 that differs from the lighting device 10 in the first embodiment only differs in that the socket 260 is an MR16 socket that can be plugged into a GU5.3 or GX5.3 socket. However, the invention is not limited thereto.

The base 260 is with the optical lens 230 opposite side of the carrier 210 connected. The optical lens 230 is by a hook element 250 above the light unit 220 attached.

The 11 and 12 show the third embodiment of the lighting device 30 that a carrier 310 , a lighting unit 320 , an optical lens 330 , a support element 340 , a hook element 350 , a pedestal 360 and a metal ring 380 includes.

The carrier 310 has a circumferential wall 314 holding a recording room 312 forms, and a variety of grooves 313 into which the cooling fins 316 be plugged.

The lighting unit 320 is in the recording room 312 arranged and includes a circuit board 322 and at least one light emitting diode 324 , The circuit board 322 is an MCPCB on which a circuit (not shown) is provided. In practice, the invention is not limited thereto. The light-emitting diode 324 is on the circuit board 322 arranged and electrically connected to this. The light-emitting diode 324 may be an AC powered light emitting diode powered directly by an AC power such as AC110V. The light-emitting diode 324 may also be a DC driven light emitting diode connected to an AC-DC converter circuit (not shown). The AC-DC converter circuit is connected to an external AC power source, such as AC110V, and can convert the AC power into DC power to drive the LED with DC power. The voltage AC110 V is an example. The invention is not limited thereto. Another AC or DC is also possible, such as 220 VAC.

The optical lens 330 defines an optical axis I. The optical axis 330 has a translucent main body 331 on. The main body 331 has a light entry part 332 , a first light exit part 334 and a second light exit part 336 , The light entry part 332 includes a bottom surface 3320 and a reflection surface 3322 , The lower surface 3320 forms a recess 3321 , The reflection surface 3322 is with the bottom surface 3320 connected. The distance of the reflection surface 3322 from the optical axis I increases in the opposite direction of the lower surface 3320 , The first light exit part 334 is with the reflection surface 3322 connected and has an end face 335 extending in the direction of the optical axis I of the lower surface 3320 approaches. The face 335 has a plurality of first light exit surfaces 3342 and second light exit surfaces 3344 which are arranged alternately. In the present embodiment, the first light exit surfaces 3342 parallel to the lower surface 3320 , The second light exit surfaces 3344 are vertical to the bottom surface 3320 , This is the first light exit part 134 stage. The length of the second light exit surfaces 1344 that are vertical to the lower surface 1320 are smaller in the direction of the optical axis I. In practice, the first light exit surfaces 3342 as in the second and third embodiments of the optical lens with respect to the vertical surface of the optical axis I have an inclination angle to change the angle of reflection of the light beam. The second light exit part 336 is with the face 335 connected and is located above the recess 3321 , The second light exit part 336 is formed by a Fresnel lens. In this embodiment, the second light exit part 336 and the first light exit part 334 formed in one piece. In practice, the invention is not limited thereto.

The support element 340 is in the recording room 312 arranged, fastened the circuit board 322 and supports the optical lens 330 , so the optical lens 330 above the LED 324 lies.

The hook element 350 has a variety of hooks 352 on, attached to a flange 338 the optical lens 330 hook to the optical lens 330 to fix.

The base 360 is with the optical lens 330 opposite side of the carrier 310 connected and has a housing 362 and an electrical connector 364 on. The housing 362 has a recording room 363 in which one Drive circuit board 31 is arranged with the lighting unit 320 electrically connected. When the light emitting diode 324 is operated with DC, the drive circuit board 31 include an AC-DC converter circuit to convert the AC to DC. The electrical connector 364 is with the drive circuit board 31 electrically connected to the light unit 320 electrically connected. In this embodiment, the socket 360 an E26 or E27 socket.

The metal ring 380 gets on the cooling fins 316 attached and has a variety of cooling holes 382 to increase the cooling effect and injury to the user through the sharp upper edges of the cooling fins 316 to avoid.

The lighting device 10 further comprises a reflector disposed between the optical lens 330 and the support element 340 is arranged to pass through the reflection surface 3322 Reflecting light beam through, so that the failure light of the first light exit part 334 and the second light exit part 336 is increased.

In summary, it should be noted that the optical lens has a reflection surface that can change the direction of the light beam for the light beam to exit through the first light exit part, and that the first light exit part is stepped, thereby shortening the beam path in the main body, so that the light loss reduced in the main body and the volume and weight of the optical lens is reduced.

Furthermore, the above-mentioned lighting devices 10 . 20 . 30 a diffuser 400 include the color homogeneity of the light emitting devices 10 . 20 . 30 to increase. Ie. The optical lenses 130 . 130a . 130b . 230 . 330 each have a lens 400 to the light of the LEDs 124 . 134 to spread, so that a better quality of the light spot is achieved. Like from the 13 and 14 it can be seen, is the lens 400 at the light emitting diode 124 opposite side of the optical lens 130 arranged to light the LED 124 to spread, so that a better quality of the light spot is achieved.

The foregoing description represents only the preferred embodiments of the invention and is not intended to serve as a definition of the limits and scope of the invention. All equivalent changes and modifications are within the scope of this invention.

LIST OF REFERENCE NUMBERS

10, 20, 30

lighting device

11, 31

Drive circuit board

110, 210, 310

carrier

112, 312

accommodation space

114, 314

circumferential wall

115

inside

116, 216, 316

cooling fin

117

positioning

118

positioning recess

119

perforation

120, 220, 320

light unit

122, 322

circuit board

123

positioning groove

124, 324

led

126

control circuit

130, 130a, 130b, 230, 330

optical lens

131, 131a, 131b, 231, 331

main body

132, 232, 332

Light entrance part

1320, 2320, 3320

undersurface

1322, 2322, 3322

reflecting surface

134, 134a, 134b, 234, 334

first light exit part

1342, 1342a, 2342b, 2342, 3342

first light exit surface

1344, 1344a, 1344b, 2344, 3344

second light exit surface

135, 135a, 135b, 235, 335

face

136, 236, 336

second light exit part

140, 340

support element

141

screw

142

score

144

positioning

150, 250, 350

hook element

152, 352

hook

160, 260, 360

base

162, 362

casing

164

open side

165

closed page

166

accommodation space

168

connection

170

reflector

313

groove

338

flange

363

accommodation space

364

electrical connector

380

metal ring

382

cooling holes

400

diffuser

I

optical axis

n1

first medium

n2

second medium

S

interface

θi

angle of incidence

.theta.r

angle of reflection

θt

angle of refraction

Claims (25)

Optical lens defining an optical axis (I) comprising a main body ( 131 ), comprising: a light entry part ( 132 ), which has a lower surface ( 1320 ) and a reflection surface ( 1322 ), the lower surface ( 1320 ) a recess ( 1321 ), wherein the reflection surface ( 1322 ) with the lower surface ( 1320 ), wherein the distance of the reflection surface ( 1322 ) from the optical axis (I) in the opposite direction of the lower surface ( 1320 ), a first light exit part ( 134 ), with the reflection surface ( 1322 ) and an end face ( 135 ), which in the direction of the optical axis (I) of the lower surface ( 1320 ), and a second light exit part ( 136 ) extending over the recess ( 1321 ) is located. Optical lens according to claim 1, characterized in that the second light exit part ( 136 ) is formed by a Fresnel lens. Optical lens according to claim 1, characterized in that the end face ( 135 ) a plurality of first light exit surfaces ( 1342 ) and second light exit surfaces ( 1344 ), which are arranged alternately. Optical lens according to claim 3, characterized in that the first light exit surfaces ( 1342 ) parallel to the lower surface ( 1320 ) and the second light exit surfaces ( 1344 ) are vertical to the lower surface ( 1320 ), whereby the first light exit part ( 134 ) is graded. Optical lens according to claim 4, characterized in that the length of the second light exit surfaces ( 1344 ), which are vertical to the lower surface ( 1320 ) are reduced in the direction of the optical axis (I). Optical lens according to claim 3, characterized in that the first light exit surfaces ( 1342a . 1342b ) have a tilt angle with respect to the vertical surface of the optical axis (I), wherein the length of the second light exit surfaces ( 1344a . 1344b ), which are vertical to the lower surface ( 1320a . 1320b ) are reduced in the direction of the optical axis I. Optical lens according to claim 1, characterized in that the first and second light exit parts ( 134 . 136 ) are integrally formed. Lighting device comprising a support ( 110 ), which has a circumferential wall ( 114 ) having a receiving space ( 112 ) forms a lighting unit ( 120 ), which is a circuit board ( 122 ) and at least one light-emitting diode ( 124 ), wherein the circuit board ( 122 ) in the recording room ( 112 ) is arranged, wherein the light emitting diode ( 124 ) on the circuit board ( 122 ) is arranged, an optical lens ( 130 ), comprising: a light entry part ( 132 ), which has a lower surface ( 1320 ) and a reflection surface ( 1322 ), the lower surface ( 1320 ) a recess ( 1321 ), wherein the reflection surface ( 1322 ) with the lower surface ( 1320 ), wherein the distance of the reflection surface ( 1322 ) from the optical axis (I) in the opposite direction of the lower surface ( 1320 ), a first light exit part ( 134 ), with the reflection surface ( 1322 ) and an end face ( 135 ), which in the direction of the optical axis (I) of the lower surface ( 1320 ), and a second light exit part ( 136 ) extending over the recess ( 1321 ), and a socket ( 160 ), which coincides with that of the optical lens ( 130 ) facing away from the carrier ( 110 ) connected is. Lighting device according to claim 8, characterized in that the second light exit part ( 136 ) is formed by a Fresnel lens. Lighting device according to claim 8, characterized in that the end face ( 135 ) a plurality of first light exit surfaces ( 1342 ) and second light exit surfaces ( 1344 ), which are arranged alternately. Lighting device according to claim 10, characterized in that the first light exit surfaces ( 1342 ) parallel to the lower surface ( 1320 ) and the second light exit surfaces ( 1344 ) vertical to the lower surface ( 1320 ), whereby the first light exit part ( 134 ) is graded. Lighting device according to claim 11, characterized in that the length of the second light exit surfaces ( 1344 ), which are vertical to the lower surface ( 1320 ) are reduced in the direction of the optical axis (I). Lighting device according to claim 10, characterized in that the first light exit surfaces ( 1342a . 1342b ) have a tilt angle with respect to the vertical surface of the optical axis (I), wherein the length of the second light exit surfaces ( 1344a . 1344b ), which are vertical to the lower surface ( 1320a . 1320b ) are reduced in the direction of the optical axis I. Lighting device according to claim 8, characterized in that the first and second light exit part ( 134 . 136 ) are integrally formed. Lighting device according to claim 8, characterized by a reflector ( 170 ), between the carrier ( 110 ) and the optical lens ( 130 ) is arranged. Lighting device according to claim 8, characterized in that the inside ( 115 ) of the surrounding wall ( 114 ) at least one positioning projection ( 117 ) and at least one positioning recess ( 118 ), wherein the positioning projection ( 117 ) into the positioning notch ( 123 ) of the circuit board ( 122 ), wherein a positioning element ( 144 ) of the support element ( 140 ) in the positioning recess ( 118 ) intervenes. Lighting device according to claim 8, characterized in that the carrier ( 110 ) a plurality of cooling fins ( 116 ), which with the peripheral wall ( 114 ) are connected. Lighting device according to claim 8, characterized by a support element ( 140 ) between the optical lens ( 130 ) and the carrier ( 110 ) is arranged and the optical lens ( 130 ). Lighting device according to claim 18, characterized by a reflector ( 170 ) placed between the optical lens ( 130 ) and the support element ( 140 ) is arranged. Lighting device according to claim 18, characterized by a hook element ( 150 ), which has at least one hook ( 152 ), which in an opening ( 119 ) of the surrounding wall ( 114 ), through the optical lens ( 130 ) and into a notch ( 142 ) of the support element ( 140 ) hooked. Lighting device according to claim 8, characterized in that the base is a GU10, MR16, E26 or E27 socket. Lighting device according to claim 18, characterized by a plurality of screws ( 141 ) supporting the supporting element ( 140 ) on the carrier ( 110 ). Lighting device according to claim 8, characterized by a hook element ( 350 ), which has a variety of hooks ( 352 ), which on a flange ( 338 ) of the optical lens ( 330 ) hook. Lighting device according to claim 8, characterized in that the base ( 160 ): an open page ( 164 ), a closed page ( 165 ), the open page ( 164 ), a receiving space ( 166 ) in which a drive circuit board ( 11 ) and two terminals ( 168 ) through the closed side ( 165 ) and connected to the drive circuit board ( 11 ) are electrically connected. Lighting device according to claim 8, characterized by a lens ( 400 ), which are connected to the LED ( 124 ) facing away from the optical lens ( 130 ) is arranged.

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