CN109654393B - Nostril illuminating device with second shielding plate - Google Patents

Abstract

The nostril illuminating device with the second shielding plate of the present invention belongs to the fields of baby products, pediatric medical equipment, optical lighting and the like; the illuminating device is arranged in the casing, and the objective lens, the pinhole, the first shielding plate, the first shielding plate, the objective lens, the pinhole, the first shielding plate, The second shielding plate and the ellipsoid reflector; the focal position of the objective lens coincides with the far focus position of the ellipsoid reflector, and a pinhole is arranged at the overlap; the parallel beam illuminates the objective lens along the optical axis, forming a point light source at the pinhole position, and then passes through the The ellipsoidal reflector reflects to the near-focus position and converges into a spot light spot; the first shielding plate and the second shielding plate are coaxially arranged, the first shielding plate is annular, the second shielding plate is circular, and the first shielding plate has an inner circle The diameter is larger than the diameter of the second shielding plate, and both the first shielding plate and the second shielding plate can move along the optical axis between the pinhole and the ellipsoid reflector; Provides high-quality convergent lighting beams.

Description

Nostril lighting device with second shutter

This application is a divisional application of the invention patent application "Nostril Lighting Device for Infants".

The original application date: 2017-01-11.

The original application number: 2017100199593.

Name of the invention in the original case: Nostril lighting device for infants.

technical field

The second shielding plate and the nostril lighting device with the second shielding plate of the present invention belong to the fields of baby products, pediatric medical instruments, optical lighting and the like.

Background technique

Booger can obstruct breathing and cause discomfort. When adults have boogers in their nostrils, they can pull out the boogers by themselves. However, for infants, due to underdeveloped limbs, they cannot dig the boogers on their own, so they need the help of parents.

However, because babies do not know how to cooperate with their parents, they will instinctively resist when picking boogers, which will easily cause damage to the nasal mucosa and bring difficulties to the development of booger picking. Pick up baby's booger.

Since the boogers are hidden inside the nostrils, the baby's nostrils need to be illuminated, which has high requirements on the converging characteristics of the illumination beam for the following reasons:

First, if the light beam diverges, it will irradiate the baby's eyes, so that the baby wakes up from a deep sleep, making it impossible to pick the nose;

Second, the baby's nostrils are very small. If the beam is divergent, it may cause insufficient lighting intensity, which will also bring difficulties to the development of booger picking.

It can be seen that a lighting device with a good convergence function is a key auxiliary device for the smooth development of the baby's nose picking work.

However, whether it is a daily lighting lamp or a flashlight, the light beam is divergent and cannot achieve the effect of convergent lighting.

SUMMARY OF THE INVENTION

Aiming at the requirement for nostril lighting in the work of picking up babies' noses, the present invention designs a nostril lighting device for infants, which can provide high-quality convergent lighting beams with a very simple structure.

The object of the present invention is achieved in this way:

In the nostril lighting device for infants, an objective lens, a pinhole, a first shielding plate, a second shielding plate and an ellipsoidal reflector are coaxially arranged in the outer shell in sequence along the light propagation direction; the focal position of the objective lens and the far focus of the ellipsoidal reflector The positions are coincident, and pinholes are arranged at the coincidence; the parallel beam illuminates the objective lens along the direction of the optical axis, and a point light source is formed at the pinhole position, which is then reflected to the near-focus position through the ellipsoid reflector, and converges into a point light spot; the first shielding plate and the second The two shielding plates are coaxially arranged, the first shielding plate is annular, the second shielding plate is circular, the inner circle diameter of the first shielding plate is larger than the diameter of the second shielding plate, and both the first shielding plate and the second shielding plate can be in the pinhole and the ellipsoid reflector along the optical axis.

In the above-mentioned nostril lighting device for infants, the first shielding plate can move along the optical axis between the pinhole and the ellipsoid reflector, and is realized by the following structure:

The side wall of the first shielding plate is provided with a plurality of gaps and a protruding end perpendicular to the optical axis, and the inner wall of the casing is provided with a slideway and a first through groove, and the gaps and the slideway are matched to make the first shielding The plate can move along the direction of the optical axis, the extension end extends from the first through groove, and the position of the first shielding plate in the housing is controlled by adjusting the position of the extension end;

The connection relationship between the extension end and the first shielding plate is as follows: the extension end is connected with the first shielding plate through the rotating shaft, and a spring is also installed between the extension end and the first shielding plate, and the spring is used for the connection between the extension end and the first shielding plate. down, the protruding end has a tendency to deviate from the first through groove;

The side wall of the first through groove is serrated, and the protruding end can be caught in each serration, so as to realize the positioning of the protruding end and then the positioning of the first shielding plate.

In the above-mentioned nostril lighting device for infants, the second shielding plate can move along the optical axis between the pinhole and the ellipsoid reflector, and is realized by the following structure:

The side wall of the second shielding plate is symmetrically provided with two supporting ends, and the outer casing is symmetrically provided with two second through grooves, and the supporting ends protrude from the second through grooves; The end is moved back and forth by threading on the outer wall of the casing. On the end face of the annular rotating end, a notch is provided. The inner surface of the notch is installed with interference fit with the outer ring of the bearing. The annular connecting end is connected to the supporting end.

Beneficial effects:

First, in the baby nostril lighting device of the present invention, because in the housing, only the objective lens, the pinhole, the first shielding plate, the second shielding plate and the ellipsoid reflector are arranged coaxially along the light propagation direction in sequence, and the number of components. Therefore, it has the technical advantage of simple structure;

Second, in the infant nostril lighting device of the present invention, since the first shielding plate and the second shielding plate are provided, the annular illumination light is provided, which only illuminates the side walls of the nostrils and does not illuminate the interior of the nostrils, which is the same as the circular illumination. Compared with the light beam, in addition to the technical effect of illuminating the side walls of the nostrils, it also has the effect of protecting the nasal mucosa inside the nostrils;

Third, in the baby nostril lighting device of the present invention, since both the first shielding plate and the second shielding plate can move in the direction of the optical axis between the pinhole and the ellipsoid reflector, they can pass through the first shielding plate and the second shielding plate. The movement of the second shielding plate adjusts the diameter of the inner and outer circles of the annular lighting beam, the irradiation angle, and the irradiation intensity, so that it can be suitable for babies with different nose shapes and sizes, and the scope of application of the nostril lighting device is increased;

Fourth, in the baby nostril lighting device of the present invention, because the ellipsoidal reflector is used to converge the light beam, compared with the traditional lens convergence method, the reflector can solve the aberration problem of the lens in principle, and realizes the irradiation of the baby without stray light. Eyes, effectively avoid diverging beams or converging beams with aberrations to wake the baby up from a deep sleep, resulting in the problem that booger picking cannot be carried out;

Fifth, in the infant nostril illumination device of the present invention, the double-focus conjugate property of the ellipsoid reflector is fully utilized, that is, the property that the light beam incident from the far focus can also exit from the far focus is used, and the same lens structure or plane reflector or Compared with the spherical reflector, it has the beneficial effect of large-angle illumination, so that the illumination beam is cut off at the side wall of the nostril, and further protects the nasal mucosa inside the nostril.

Description of drawings

FIG. 1 is a schematic structural diagram of a nostril lighting device for infants according to the present invention.

FIG. 2 is a schematic diagram of the cooperation relationship between the first shielding plate and the housing.

Figure 3 is a schematic view of the protruding end stuck in the saw teeth.

FIG. 4 is a schematic diagram of the structural relationship between the second shielding plate and the housing.

In the figure: 1 objective lens, 2 pinhole, 3 first shielding plate, 31 extending end, 32 spring, 4 second shielding plate, 41 supporting end, 42 annular rotating end, 43 bearing, 44 annular connecting end, 5 ellipsoid surface Mirror, 6 housings.

specific embodiment

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Specific embodiment one

The schematic diagram of the structure of the nostril lighting device for infants in this embodiment is shown in FIG. 1 . In the nostril lighting device for infants, in the casing 6, an objective lens 1, a pinhole 2, a first shielding plate 3, a second shielding plate 4 and an ellipsoid reflector 5 are sequentially arranged coaxially along the light propagation direction; the objective lens 1 focuses The position coincides with the far focus position of the ellipsoid reflector 5, and the pinhole 2 is set at the overlap; the parallel beam illuminates the objective lens 1 along the optical axis, and a point light source is formed at the position of the pinhole 2, which is then reflected to the near focus position by the ellipsoid reflector 5. Converged into a spot light spot; the first shielding plate 3 and the second shielding plate 4 are coaxially arranged, the first shielding plate 3 is annular, the second shielding plate 4 is circular, and the inner diameter of the first shielding plate 3 is larger than that of the second shielding plate 3 The diameter of the shielding plate 4, the first shielding plate 3 and the second shielding plate 4 can be moved along the optical axis direction between the pinhole 2 and the ellipsoidal mirror 5.

Specific embodiment two

The baby nostril lighting device of the present embodiment, on the basis of the specific embodiment 1, further defines that the first shielding plate 3 can move along the optical axis between the pinhole 2 and the ellipsoid reflector 5, and is realized by the following structure:

The side wall of the first shielding plate 3 is provided with a plurality of gaps and a protruding end 31 perpendicular to the optical axis. The inner wall of the housing 6 is provided with a slideway and a first through groove. The first shielding plate 3 can move along the direction of the optical axis, the extension end 31 protrudes from the first through groove, and the position of the first shielding plate 3 in the housing 6 is controlled by adjusting the position of the extension end 31;

The connection relationship between the extending end 31 and the first shielding plate 3 is as follows: the extending end 31 is connected with the first shielding plate 3 through the rotating shaft, and between the extending end 31 and the first shielding plate 3, there is also installed a The spring 32, under the action of the spring 32, the protruding end 31 has a tendency to deviate from the first through groove;

The schematic diagram of the mating relationship between the first shielding plate 3 and the housing 6 is shown in FIG. 2 ;

The side wall of the first through groove is serrated, and the protruding end 31 can be caught in each serration to realize the positioning of the protruding end 31 and then the positioning of the first shielding plate 3 .

A schematic diagram of the protruding end 31 being caught in the sawtooth is shown in FIG. 3 , which is also a top view (not drawn to scale) of FIG. 2 .

Specific embodiment three

The baby's nostril lighting device of the present embodiment, on the basis of the specific embodiment 1, further defines that the second shielding plate 4 can move along the optical axis between the pinhole 2 and the ellipsoid reflector 5, and is realized by the following structure:

The side wall of the second shielding plate 4 is symmetrically provided with two support ends 41 , the housing 6 is symmetrically provided with two second through slots, and the support ends 41 protrude from the second through slots; There are threads, the annular rotating end 42 can move back and forth by threading on the outer wall of the casing 6, and a notch is provided on the end face of the annular rotating end 42, and the inner surface of the notch is installed with an interference fit with the outer ring of the bearing 43, and is installed on the bearing 43. In the inner ring, an annular connecting end 44 is installed with interference fit, and the annular connecting end 44 is connected to the supporting end 41 .

A schematic diagram of the structural relationship between the second shielding plate 4 and the housing 6 is shown in FIG. 4 .

Claims (1)

1. The nostril illuminating device with the second shielding plate is characterized in that an objective lens (1), a pinhole (2), a first shielding plate (3), a second shielding plate (4) and an ellipsoidal reflector (5) are coaxially arranged in the shell (6) along the light propagation direction in sequence; the focal position of the objective lens (1) is superposed with the far focal position of the ellipsoidal reflector (5), and a pinhole (2) is arranged at the superposed position; the parallel light beams irradiate the objective lens (1) along the direction of an optical axis to form a point light source at the position of the pinhole (2), and the point light source is reflected to a position close to a focus point by the ellipsoidal reflector (5) and converged into a point light spot; the first shielding plate (3) and the second shielding plate (4) are coaxially arranged, the first shielding plate (3) is annular, the second shielding plate (4) is circular, the diameter of the inner circle of the first shielding plate (3) is larger than that of the second shielding plate (4), and the first shielding plate (3) and the second shielding plate (4) can move between the pinhole (2) and the ellipsoidal reflector (5) along the direction of an optical axis;

the second shielding plate (4) can move between the pinhole (2) and the ellipsoidal reflector (5) along the direction of the optical axis, and the structure is as follows:

the side wall of the second shielding plate (4) is symmetrically provided with two supporting ends (41), the shell (6) is symmetrically provided with two second through grooves, and the supporting ends (41) extend out of the second through grooves; the outer shell (6) is sleeved with threads, the annular rotating end (42) moves back and forth through thread rotation on the outer wall of the outer shell (6), a notch is formed in the end face of the annular rotating end (42), the inner surface of the notch is in interference fit with the outer ring of the bearing (43), an annular connecting end (44) is in interference fit with the inner ring of the bearing (43), and the annular connecting end (44) is connected with the supporting end (41).

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