CN203323001U - Light spot control device based on light emitting diode - Google Patents
Light spot control device based on light emitting diode Download PDFInfo
- Publication number
- CN203323001U CN203323001U CN2013203508933U CN201320350893U CN203323001U CN 203323001 U CN203323001 U CN 203323001U CN 2013203508933 U CN2013203508933 U CN 2013203508933U CN 201320350893 U CN201320350893 U CN 201320350893U CN 203323001 U CN203323001 U CN 203323001U
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- source base
- focusing lens
- control device
- emitting diode
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Abstract
The utility model discloses a light spot control device based on a light emitting diode. The light spot control device comprises an amplification board, a luminescent tube, a light source base, a focusing lens, a focusing lens pressing ring and a light shading chip, wherein the amplification board is arranged on the bottom end surface of the light source base; the luminescent tube, the focusing lens, the focusing lens pressing ring and the light shading chip are coaxially and sequentially arranged on the light source base from outside to inside; the amplification board is arranged on a refracted light path composed of the luminescent tube, the focusing lens, the focusing lens pressing ring and the light shading chip. The light emitting intensity is controlled through adopting a constant-current circuit, and light beams are converted into parallel light to be irradiated on the light shading chip through adopting a hemispherical cold reflector and a lens, so that light from the light shading chip with the rectangular micropore is parallel and uniform, and is 0.3 to 0.5 mm in width.
Description
Technical field
The utility model relates to medical instruments field, specifically the hot spot control device.
Background technology
The light that existing light emitting diode sends is all that half-angle is to extraradial, the power of light and the electric current of light emitting diode are directly proportional, the light of radiation is just as take light emitting diode as the center of circle, semicircle is to extraradial form, expect light ray parallel out of anti-dazzling screen by the rectangle micropore is arranged, evenly, 0.4mm ± 0.1mm width is very inaccessible.
The utility model content
The purpose of this utility model is the deficiency existed for prior art, and a kind of hot spot control device based on light emitting diode is provided, and can make light ray parallel out of anti-dazzling screen by the rectangle micropore is arranged, evenly, reaches 0.4mm ± 0.1mm width.
For realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is a kind of hot spot control device based on light emitting diode, comprises amplification board, luminous tube, light source base, focusing lens, focus lamp trim ring and anti-dazzling screen; Described amplification board is arranged on the light source base end face; On light source base, ecto-entad is provided with coaxial luminous tube, focusing lens, focus lamp trim ring and anti-dazzling screen successively, and amplification board is arranged on the refractive light paths of said modules.
Described amplification board is set with the amplification board plate cassette outward.
Described luminous tube is fixed on light source base by the luminous tube hold-down screw.
Described anti-dazzling screen is fixed on light source base by the anti-dazzling screen hold-down screw.
Excitation source adopts peak wavelength 540nm, superhigh brightness LED, and maximum emission intensity can reach 30mW.For further increasing light intensity, adopt hemisphere face cold reflector and lens to realize that light beam collects, because of the absorption of collaurum to the 540nm wavelength, so the power of the light reflected and the depth of marker concentrations are inversely proportional to, the energy that concentration reflects more greatly energy less, that blank reflects is the strongest.The centre wavelength of utilizing emitted light filter plate is 540nm, half-breadth 20 ± 3nm.For the shape with reaction zone is coincide, we adopt the cylindricality mirror light source to be integrated into to the strip hot spot of a 0.4mm left and right, use the optical focus principle to guarantee the even of hot spot simultaneously.Because the stability of the light intensity of light emitting diode directly depends on the stable of supply current, so designed a set of constant-current control circuit, the power supply of light source is controlled, adopt control method and the special integrated circuit of laser instrument to complete this function.
Beneficial effect: the utility model adopts constant-current circuit to control luminous intensity, adopting hemisphere face cold reflector and lens that light beam is become to directional light shines on anti-dazzling screen, can make light ray parallel out of anti-dazzling screen by the rectangle micropore is arranged, evenly, reach 0.4mm ± 0.1mm width.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is constant-current control circuit figure;
Fig. 3 is that LED light source converts the schematic diagram of device of directional light to through lens.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, the present embodiment is implemented take technical solutions of the utility model under prerequisite, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model.
As shown in Figure 1, a kind of hot spot control device based on light emitting diode, comprise amplification board plate cassette 1, amplification board 2, luminous tube 3, luminous tube hold-down screw 4, light source base 5, focusing lens 6, focus lamp trim ring 7, anti-dazzling screen 8 and anti-dazzling screen hold-down screw 9.
Fig. 2 is constant-current control circuit: according to the chip instruction manual of LM317; Continuous current is I=1.2/ (R2+R3).
Constant-current circuit is controlled light emitting diode and is sent out the constant light in place, the light that light is processed light emitting diode is sent by 6 pairs of light of focusing lens changes over directional light and shines on anti-dazzling screen 8, what at measured face, present like this is exactly and anti-dazzling screen light of a size, as Fig. 3, reach our designed demand.
Claims (4)
1. the hot spot control device based on light emitting diode, is characterized in that: comprise amplification board (2), luminous tube (4), light source base (5), focusing lens (6), focus lamp trim ring (7) and anti-dazzling screen (8); Described amplification board (2) is arranged on light source base (5) end face; Be provided with successively coaxial luminous tube (4), focusing lens (6), focus lamp trim ring (7) and anti-dazzling screen (8) at the upper ecto-entad of light source base (5), amplification board (2) is arranged on the refractive light paths of said modules.
2. a kind of hot spot control device based on light emitting diode according to claim 1, is characterized in that: the outer amplification board plate cassette (1) that is set with of described amplification board (2).
3. a kind of hot spot control device based on light emitting diode according to claim 1, it is characterized in that: described luminous tube (4) is fixed on light source base (5) by luminous tube hold-down screw (3).
4. according to the described a kind of hot spot control device based on light emitting diode of claim 1, it is characterized in that: described anti-dazzling screen (8) is fixed on light source base (5) by anti-dazzling screen hold-down screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508933U CN203323001U (en) | 2013-06-18 | 2013-06-18 | Light spot control device based on light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508933U CN203323001U (en) | 2013-06-18 | 2013-06-18 | Light spot control device based on light emitting diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323001U true CN203323001U (en) | 2013-12-04 |
Family
ID=49662349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203508933U Expired - Lifetime CN203323001U (en) | 2013-06-18 | 2013-06-18 | Light spot control device based on light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203323001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224830A (en) * | 2016-07-22 | 2016-12-14 | 惠州市西顿工业发展有限公司 | A kind of ring wall lamp |
| CN106224829A (en) * | 2016-07-22 | 2016-12-14 | 惠州市西顿工业发展有限公司 | A kind of light fixture |
-
2013
- 2013-06-18 CN CN2013203508933U patent/CN203323001U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224830A (en) * | 2016-07-22 | 2016-12-14 | 惠州市西顿工业发展有限公司 | A kind of ring wall lamp |
| CN106224829A (en) * | 2016-07-22 | 2016-12-14 | 惠州市西顿工业发展有限公司 | A kind of light fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |