JP2012108040A - Hatching egg inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hatching egg inspection apparatus capable of taking contamination preventing measures without impairing productivity.SOLUTION: The hatching egg inspection apparatus includes: a carry-in section; an inspection section for determining life/death, or whether hatching eggs are unfertilized eggs or growth arrested eggs; an excluding section for excluding the hatching eggs that are determined as the unfertilized egg and the like; and a conveying section for conveying the hatching eggs to a next step. The inspection section includes: a light emitting section 11 for applying prescribed light towards the hatching eggs; a cap mounting section 16 for condensing the light that is applied to the hatching eggs and transmits trough the hatching eggs; and a light receiving section 22 for receiving the light passing through the cap mounting section 16. The cap mounting section 16 includes: cylindrical caps 20 coming into contact with the hatching eggs; and a plate 17 for mounting the caps 20; and is slidably retained by a guide rail 21.

Description

  The present invention relates to a seed egg inspection apparatus, and particularly relates to a seed egg inspection apparatus that mainly determines whether a seed egg is alive or dead.

  Eggs represented by chicken eggs and the like include eggs for producing chicks in addition to edible eggs. Such an egg is particularly referred to as a “seed egg”. When the eggs are warmed for a predetermined number of days under a certain environment such as a predetermined temperature, the chicks hatch. In an incubator that produces a large number of chicks, the production process is managed so that the eggs obtained in a certain period of time hatch simultaneously on the same predetermined day.

  Inside the seed egg, embryo development proceeds from the time of egg laying. For this reason, first, in the step of storing the seed eggs obtained for a certain period, the seed eggs are held in an environment at a temperature of 28 ° C. or lower, thereby suppressing embryonic cell division and causing the seed eggs to rest. When a predetermined number of eggs are accumulated, the activity of the embryo that has been dormant is resumed by preheating. The eggs are inspected for dirt and cracks and placed on a special tray called a setter tray. By holding the eggs contained in the setter tray under an environment of a temperature of 38 ° C., the incubation step is started. The day on which the incubation process is started is defined as the date of incubation, and the number of days elapsed since the date of implantation is defined as the number of incubation days. Chicks are born on the 21st day of incubation.

  On the 18th or 19th day of incubation, in preparation for hatching of the seed eggs, an operation of transferring the seed eggs from a setter tray to a special tray called a hatcher lei is performed. During the transfer operation, the eggs are subjected to a predetermined inspection. Here, the inspection will be described.

  Even if it is a seed egg, not all the seed eggs will hatch, and there are some eggs that have not been fertilized from the beginning, and there are some eggs that have stopped growing during the incubation process. . Such unfertilized eggs and eggs whose development has been ceased are rotted, and rotten eggs are called spoiled eggs. Gas is generated when the contents rot. When gas is generated in the space closed by the shell, the pressure in the egg increases, and part of the rotten egg ruptures. The inventors refer to such a ruptured egg or an egg that may be ruptured as an “explosive egg”.

  When the eggs stored in the setter tray explode (rupture), the rotten contents spatter, and the germs contained in the contents will contaminate the surrounding healthy eggs. Moreover, when inoculating a seed egg with a vaccine, the seed egg whose internal pressure rose may explode by the impact when an injection needle contacts a shell. Moreover, even if it does not explode, the injection needle is contaminated by vaccinating the rotten egg, and other healthy eggs are also contaminated by the contaminated injection needle. In addition, if eggs erupt after being transferred to Hatchery, chicks that have already been born may be contaminated.

  In order to prevent such contamination in advance, an inspection is performed to divide the seed eggs into seed eggs that have been grown healthy and unfertilized eggs or eggs that have stopped growing. That is, the life / death determination of the egg is performed. Conventionally, an optical technique has been employed for determining whether a seed egg is alive or dead, for example, as proposed in Patent Document 1 or Patent Document 2. In these methods, life / death determination is performed by irradiating a predetermined egg with predetermined light and analyzing a time-varying component of the light transmitted through the egg. In this way, the eggs that have been determined to be unfertilized eggs or eggs that have stopped growing are immediately removed to prevent contamination of the eggs that have grown healthy.

Japanese Patent Laid-Open No. 09-127096 International Publication No. 2009/044243

  However, the conventional inspection methods used for determining whether eggs are alive have the following problems. As described above, in order to determine whether a seed egg is alive or not by analyzing a component of light transmitted through the seed egg, it is necessary to shield light entering from the outside of the seed egg. For this reason, the inspection apparatus used for this inspection is provided with a cap that blocks light other than the light transmitted or diffused inside the egg. In the determination of life or death, first, the cap is brought into contact with the shell of the seed egg, and then the seed egg is irradiated with predetermined light in that state, and the light passing through the cap is condensed as light transmitted through the seed egg. Is done. The collected light is received by the light receiving element, and the life or death of the egg is determined by analyzing the received light as an electrical signal.

  As described above, in order to determine whether a life or death is based on a time-variable component of light transmitted through the egg, a cap that contacts the shell of the egg is required as an inspection device. For this reason, when the seed egg to be inspected is a spoiled egg, particularly an explosive egg, the seed egg may explode due to contact with the cap. In order to prevent the spread of contamination to other healthy eggs by a cap or the like to which germs adhere due to the explosion, it is necessary to immediately wash and disinfect the cap or the like. In addition, in order to process a large amount of eggs at the incubation place, a plurality of eggs on the setter tray are inspected simultaneously. Since a plurality of caps corresponding to the egg to be measured exists in the inspection apparatus, it is necessary to consider that a plurality of caps are contaminated at a time.

  In order to produce healthy and durable chicks, not only measures against contamination caused by the explosion of seed eggs, but a series of environments for hatching eggs is required to be kept hygienic. Even if the portion that comes into contact with the seed egg is not contaminated by the explosive egg, it is required to be sterilized on a daily basis to prevent cross infection. Furthermore, when caps and the like are contaminated, it is desired that maintenance work such as disinfection and replacement can be easily performed without hindering productivity in an incubation place that produces chicks in large quantities.

  The present invention has been made as part of the development described above, and an object thereof is to provide an egg inspection apparatus capable of taking measures against contamination without impairing productivity.

  An egg inspection apparatus according to the present invention is an egg inspection apparatus that inspects a plurality of egg eggs aligned at predetermined positions, and includes a light emitting part, a cap mounting part, a light receiving part, a light receiving part protecting part, and a holding part. ing. The light emitting unit includes light emitting elements arranged to correspond to predetermined positions, and irradiates predetermined light from the light emitting elements toward the corresponding eggs. The cap mounting part is arranged so as to correspond to a predetermined position, contacts the egg and attaches a cylindrical cap that collects light irradiated from the light emitting element and transmitted or diffused inside the egg. Yes. The light receiving unit includes a light receiving element that receives light collected by the cap and passed through the cap mounting unit. The light receiving unit protection unit is disposed between the cap and the light receiving unit, and protects the light receiving unit. A holding part hold | maintains a cap mounting part so that attachment or detachment is possible.

  According to the egg test apparatus according to the present invention, by providing the holding unit that detachably holds the cap mounting part, it is possible to take measures against contamination of the egg test apparatus without impairing the productivity.

It is a side view which shows typically the structure of the egg test apparatus which concerns on embodiment of this invention. In the same embodiment, it is a fragmentary perspective view which shows the carrying-in part and test | inspection part in an egg test apparatus. In the same embodiment, it is a side view including a partial section showing typically the composition of an inspection part. In the same embodiment, it is a top view which shows arrangement | positioning of the light emitting element of a light emission part. In the same embodiment, it is a top view which shows the plate of a cap mounting part. In the same embodiment, it is a perspective view which shows the cap and plate of a cap mounting part. In the same embodiment, it is a top view which shows arrangement | positioning of the light receiving element of a light-receiving part. In the same embodiment, it is a top view which shows the light emission part protection plate or the light-receiving part protection plate. In the embodiment, it is a fragmentary perspective view which shows the 1st state for demonstrating the test | inspection of the egg by the egg test apparatus. In the embodiment, it is a partial side view including a partial cross section showing a second state for explaining the inspection of the eggs by the egg inspection device. In the embodiment, it is a partial side view including a partial cross section showing a third state for explaining the inspection of the eggs by the egg inspection device. In the embodiment, it is a partial side view including a partial cross section showing a fourth state for explaining the inspection of the egg by the egg inspection apparatus. In the embodiment, it is a partial side view including a partial cross section showing a fifth state for explaining the inspection of the eggs by the egg inspection device. In the same embodiment, it is the 1st partial perspective view for explaining the feature of the cap mounting part in an inspection part. In the embodiment, it is the 2nd partial perspective view for demonstrating the characteristic of the cap mounting part in a test | inspection part. In the same embodiment, it is a side view including a partial section for explaining the feature of an inspection part. In the embodiment, it is a side view including a partial cross section schematically showing a configuration of an inspection unit in an egg inspection apparatus according to a modification. In the embodiment, it is a perspective view which shows the cap and plate of a cap mounting part in the egg test apparatus which concern on a modification. In the same embodiment, it is a perspective view which shows the cap and plate of a cap mounting part in the egg test apparatus which concern on another modification.

  An egg inspection apparatus according to an embodiment of the present invention will be described. As shown in FIG. 1, the egg inspection apparatus 1 determines whether or not a carry-in unit 2 that receives a test egg to be inspected, and whether or not a seed egg received in the carry-in unit 2 is an unfertilized egg or a developmentally stopped egg. The inspection unit 3 to perform, the exclusion unit 4 to exclude the seed eggs determined to be unfertilized eggs or the like in the inspection unit 3, and the carry-out unit to send the seed eggs after the unfertilized eggs or the like are excluded to the next step And 5. As will be described later, a plurality of eggs to be inspected accommodated in a predetermined setter tray are sent from the carry-in unit 2 to the inspection unit 3 as indicated by an arrow 41, and, as indicated by an arrow 42, an exclusion unit. 4 is sent to the unloading unit 5.

  Next, the test | inspection part 3 which determines the life and death etc. of a seed egg is demonstrated in detail. As shown in FIG. 2 and FIG. 3, the inspection unit 3 includes a light emitting unit 11 that irradiates predetermined light toward the egg and a cap mounting unit 16 that collects light irradiated to the egg and transmitted through the egg. , And a light receiving portion 22 that receives light passing through the cap mounting portion 16 is provided.

  As shown in FIG. 4, in the light emitting unit 11, for example, a plurality of light emitting elements 13 such as light emitting diodes are arranged so as to correspond to the arrangement of eggs that are densely packed in the setter tray. Further, the light emission intensity and the like of the plurality of light emitting elements 13 are adjusted by the light emission control unit 12 (see FIG. 3). The light emitting element 13 is not limited to a light emitting diode as long as it emits light of a predetermined wavelength (region), and may be laser light, for example.

  As shown in FIGS. 5 and 6, the cap mounting portion 16 includes a cylindrical cap 20 that comes into contact with the egg and a plate 17 on which the cap 20 is mounted, and slides on the guide rail 21 (see FIG. 3). Held possible. During maintenance, the contaminated cap mounting part 16 can be removed from the inspection unit 3 by sliding the cap mounting part 16, and the sterilized cap mounting part 16 can be attached to the inspection unit 3. The plate 17 is formed with a plurality of annular protrusions 19 for attaching and fastening the cap 20. An opening 18 through which light collected by the cap 20 passes is formed inside each of the annular protrusions 19. The plurality of annular projections 19 are formed on the plate 17 so as to correspond to the arrangement of the eggs that are densely packed in the setter tray, and each of the plurality of caps 20 comes into contact with the corresponding eggs at the time of inspection. become.

  Since the cap mounting portion 16 is cleaned with a disinfecting liquid after being removed from the egg inspection device, it is desirable that the cap 20 and the plate 17 be formed of a chemical resistant member. In particular, since the cap 20 is in direct contact with the eggshell, a soft and light-shielding material such as a chemical resistant rubber is desirable. Further, since the cap 20 is formed of a soft material such as rubber, it can be easily attached to and detached from the annular protrusion 19 and cleaning such as disinfection can be performed efficiently.

  As shown in FIG. 7, in the light receiving unit 22, for example, a plurality of light receiving elements 24 such as photodiodes are arranged so as to correspond to the arrangement of eggs that are densely packed in the setter tray. The light received by the plurality of light receiving elements 24 passes through the photoelectric conversion unit 23 (see FIG. 3) as an electrical signal, and the determination unit 26 determines whether the egg to be measured is an unfertilized egg or a developmentally stopped egg. Life or death of the person is determined. The light receiving element 24 is not limited to a photodiode as long as predetermined light transmitted through the egg can be captured as a signal.

  As shown in FIGS. 3 and 8, a light emitting part protection plate 14 that protects the light emitting part 11 is attached between the light emitting part 11 and the cap attaching part 16, and between the cap attaching part 16 and the light receiving part 22. A light receiving part protection plate 25 for protecting the light receiving part 22 is attached. As the light emitting part protection plate 14 and the light receiving part protection plate 25, for example, a glass plate can be applied. Further, the light-emitting part protection plate 14 may be formed of a material that transmits light in a specific wavelength region in relation to the wavelength of light emitted from the light-emitting element 13. It may be formed of a material that transmits light in a specific wavelength region in relation to the wavelength of the component of the light that has passed through.

  Next, the inspection of the egg using the egg inspection apparatus described above will be described. In the egg inspection apparatus, mainly the egg hatched on the 18th or 19th day of incubation, which is refraining from hatching after a few days, is the subject of inspection. In addition, in an incubator that produces a large amount of chicks, batch processing is performed in which a predetermined number of eggs are tested simultaneously in order to ensure productivity. For this reason, as shown in FIG. 9, first, a plurality of seed eggs E to be inspected are finely packed in the setter tray 31 and are carried into the carry-in section 2 of the egg test apparatus 1.

  As shown in FIG. 10, the egg E carried into the carry-in unit 2 is placed between the light emitting unit 11 and the cap mounting unit 16 as indicated by an arrow 44 while being placed on the setter tray 31. Be transported. As shown in FIG. 11, when the setter tray 31 arrives at a predetermined position between the light emitting unit 11 and the cap mounting unit 16, the setter tray 31 stops at that position. Next, with the setter tray 31 stopped at a predetermined position, the cap mounting portion 16 is lowered as indicated by an arrow 45. As shown in FIG. 12, each of the plurality of caps 20 arranged to correspond to the arrangement of the eggs that are densely packed in the setter tray 31 comes into contact with the corresponding eggs E as the cap mounting portion 16 descends. To do.

  Next, light with a predetermined intensity is emitted from each of the plurality of light emitting elements 13 of the light emitting unit 11 toward the corresponding egg E for about several seconds, for example. Part of the light irradiated to the egg E is transmitted through the egg E and collected by the cap 20 that is in contact with the shell of the egg E. The condensed light passes through the opening 18 (see FIG. 6) of the plate 17 and reaches the light receiving unit 22 and is received by the corresponding light receiving element 24. The light received by the light receiving element 24 is sent as an electrical signal to the determination unit 26 via the photoelectric conversion unit 23.

  In the determination part 26, it is determined whether the egg E to be measured is an unfertilized egg or a growth-stopped egg by comparing with data acquired in advance. In this egg test apparatus 1, in addition to the intensity of light transmitted through the egg E, in particular, the life and death of the egg E is determined by reading a signal (vital sign) relating to the heartbeat and fetal movement of the embryo in the egg E. The determination result is stored together with the identification information of the setter tray 31 and the position information of the egg E. When the inspection is completed, as shown in FIG. 13, the cap mounting portion 16 is raised to a predetermined position, and the setter tray 31 containing the eggs is transported to the exclusion portion 4 (see FIG. 1).

  In the exclusion unit 4, based on the determination result, the identification information of the setter tray 31 and the position information of the seed egg E, the seed eggs determined to be unfertilized eggs or development stopped eggs are excluded from the setter tray. An unfertilized egg or a growth-stopped egg is eliminated, and a setter tray that contains only the seed eggs that have been grown smoothly is conveyed to the carry-out section 5 (see FIG. 1), and is sent out to the next process. In this way, a series of inspections of the plurality of eggs E stored in the setter tray 31 is completed.

  By the way, in general, in order to produce healthy and durable chicks, it is necessary not to contaminate the seed eggs and to prevent the contamination from spreading, and it is required to always maintain a hygienic environment for a series of hatching eggs. . The egg inspection device is no exception and is required to be kept hygienic. In particular, in a hatchery egg inspection apparatus that produces a large number of chicks, in order to ensure productivity, setter trays containing a plurality of eggs are loaded one after another, and a plurality of eggs are simultaneously loaded for each setter tray loaded. It will be examined to determine if it is alive or dead. For this reason, maintenance, such as disinfection, is required for the cap mounting part 16 on a daily basis so that contamination does not expand to healthy seed eggs by the cap 20 coming into contact with the seed eggs sent one after another.

  In the egg test apparatus 1 described above, the cap mounting portion 16 is slidably held on the guide rail 21. As a result, as shown in FIG. 14, during the maintenance, the cap mounting portion 16 can be easily removed from the inspection unit 3 by disinfecting the cap mounting portion 16 by sliding (arrow 47). . Then, when maintenance such as disinfection is completed, the cap mounting part 16 can be easily attached to the inspection unit 3 by sliding the cap mounting part 16 (arrow 47), and contamination countermeasures for the cap mounting part 16 can be easily performed. Can be planned.

  In addition, a plurality of sterilized cap mounting portions are prepared in advance, and as shown in FIG. 15, the productivity is almost hindered by replacing with the sterilized cap mounting portion 16 at the time of maintenance. Maintenance can be performed without any problems. In particular, even if the “explosive egg” referred to by the inventor actually explodes due to the cap 20 coming into contact or the like, and germs adhere to a plurality of caps 20 etc. By replacing with the cap mounting part 16, it is possible to reliably suppress the spread of miscellaneous germs to other healthy eggs without substantially inhibiting the productivity.

  In addition, it is assumed that rotten contents containing various germs are scattered from the opening 18 of the cap mounting part 16 to the light receiving part 22 due to the explosion of the explosive egg. In this egg test apparatus, a light receiving part protection plate 25 is provided between the cap mounting part 16 and the light receiving part 22. As a result, the scattered contents can be prevented from adhering to the light receiving portion protection plate 25 and contaminating the light receiving portion 22. In addition, as shown in FIG. 16, the contents attached to the light receiving portion protection plate 25 are cleaned and disinfected (see arrows) with the cap mounting portion 16 removed and the light receiving portion protection plate 25 exposed. Can be easily removed.

  On the other hand, it is assumed that the rotten contents containing various bacteria fall to the light emitting unit 11 due to the explosion of the explosion egg. In this egg test apparatus, a light emitting part protection plate 14 is provided between the cap mounting part 16 and the light emitting part 11. As a result, the dropped contents can be prevented from adhering to the light emitting part protection plate 14 and contaminating the light emitting part 11. In addition, as shown in FIG. 16, the contents attached to the light-emitting part protection plate 14 are cleaned and disinfected (see arrows) with the light-emitting part protection plate 14 and the light-receiving part protection plate 25 exposed. Can be easily removed.

  As described above, in the egg inspection apparatus described above, as a countermeasure against contamination of the cap attachment part that comes in contact with the egg, the cap attachment part is detachably held on the guide rail so that the contaminated cap attachment part is disinfected. Can be easily replaced with a part. Thereby, it is possible to prevent contamination of the egg inspection apparatus and to prevent the expansion of the contamination without inhibiting productivity. In particular, even when the explosive egg explodes and the contents containing various bacteria adhere to the cap mounting part, it can be easily replaced with a disinfected cap mounting part by sliding the cap mounting part. And can prevent the spread of contamination without impeding productivity.

  In the egg test apparatus described above, the mechanism for holding the guide rail as an example of the mechanism for detachably holding the cap mounting portion has been described. This mechanism is not limited to this as long as the cap mounting portion can be detachably held, and for example, a pressure-bonding type mechanism such as a clamp or a magnet mechanism may be employed. In addition, as an egg to be inspected, a chicken egg has been described as an example, but it is not limited to a chicken egg. For example, eggs such as a duck, a turkey, and a quail can be inspected.

  In addition, the structure in which the light receiving unit protection plate is disposed between the cap mounting unit and the light receiving unit has been described as an example, but instead of arranging the light receiving unit protection plate between the cap mounting unit and the light receiving unit, As shown in FIG. 17, the light receiving part protection plate 27 may be disposed in the opening of the plate 17 of the cap mounting part 16. In this case, when the cap mounting portion 16 is cleaned, the light receiving portion protection plate 27 can be cleaned at the same time.

  Furthermore, in the above-described inspection, the case of inspecting the eggs on the 18th or 19th day of incubation has been described as an example. In such a hatched egg immediately before hatching, light is not easily transmitted through the egg or is not easily diffused. Therefore, in the inspection unit 3, the light emission intensity of the light emitting unit 11 and the light receiving sensitivity of the light receiving unit 22 are adjusted so as to cope with such a situation.

  However, under these conditions, for example, if an attempt is made to inspect a seed egg around the 10th day of incubation, the emission intensity may be too strong, and the accuracy of the determination of the life / death of the egg may be reduced. Therefore, as the plate of the cap mounting portion, in addition to the plate having the opening 18 having the opening diameter D1 shown in FIG. 6, as shown in FIG. 18, the opening diameter D1 is used to limit the amount of light received by the light receiving portion. It is desirable to provide a plate having an opening 18 having a smaller opening diameter D2. By changing to a cap mounting part equipped with a plate having an opening with a smaller opening diameter, it is possible to perform life / death determination of eggs without reducing accuracy, even for such eggs with a small number of incubation days. Without being limited to the incubation eggs of the incubation days, it is possible to accurately inspect the incubation eggs of the arbitrary incubation days.

  Further, instead of using a cap mounting portion provided with plates having different opening diameters of the opening, a cap mounting portion mounted with a cap having a cap opening diameter different from that of the cap may be used. That is, as shown in FIG. 19, as the cap opening diameter of the cap opening located on the side in contact with the egg, in addition to the cap opening diameter C1 shown in FIG. 6, the cap opening smaller than the cap opening diameter C1 is shown. You may use the cap mounting part 16 which mounted | wore with the cap 20 of the aperture diameter C2. Even in this case, it is possible to determine whether a seed egg is alive or not with respect to a seed egg having a small number of incubation days without reducing accuracy.

  Furthermore, in the case of preparing cap mounting parts with different opening diameters of the plate and cap opening diameters, which type of cap mounting part is the currently installed cap mounting part in the inspection part. It is preferable that the egg inspection apparatus recognizes whether or not there is. For example, by providing a projection or the like to be recognized by the sensor on the plate, it is possible to recognize the type of the cap mounting portion attached to the inspection portion. By confirming this on a display or the like of the egg inspection apparatus, it is possible to prevent the egg inspection from being performed in a state where a cap mounting part that does not correspond to the incubation days is attached.

  The embodiment disclosed this time is an example, and the present invention is not limited to this. The present invention is defined by the terms of the claims, rather than the scope described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention is effectively used for poultry incubation.

  DESCRIPTION OF SYMBOLS 1 Seed egg test | inspection apparatus, 2 carrying-in part, 3 test | inspection part, 4 exclusion part, 5 carry-out part, 6 cover, 11 light emission part, 12 light emission control part, 13 light emitting element, 14 light emission part protection plate, 16 cap mounting part, 17 plate , 18 opening, 19 annular protrusion, 20 cap, 21 guide rail, 22 light receiving part, 23 photoelectric conversion part, 24 light receiving element, 25 light receiving part protection plate, 26 determination part, 27 light receiving part protection plate, 31 setter tray, E Eggs, 41-49 arrows.

Claims (7)

An egg inspection apparatus for inspecting a plurality of eggs laid in a predetermined position,
A light emitting unit that includes light emitting elements arranged to correspond to the predetermined positions, and that emits predetermined light from the light emitting elements toward the corresponding eggs.
A cap mounting portion mounted with a cap that collects the light that is respectively disposed so as to correspond to the predetermined position and is in contact with the egg, and that is irradiated from the light emitting element and that is transmitted or diffused through the interior of the egg;
A light receiving portion including a light receiving element that receives light collected by the cap and passed through the cap mounting portion;
A light receiving part protection part that is disposed between the cap and the light receiving part and protects the light receiving part;
An egg inspection apparatus comprising: a holding unit that detachably holds the cap mounting unit.   The egg-laying test apparatus according to claim 1, wherein the holding part includes a guide rail that slidably supports the cap mounting part.   The egg test apparatus according to claim 1, wherein the holding portion includes a clamp.   The egg laying inspection apparatus according to claim 1, wherein the holding part includes a magnet.   The egg test apparatus according to any one of claims 1 to 4, further comprising a light emitting part protection part that is disposed between the cap mounting part and the light emitting part and protects the light emitting part. The cap mounting portion includes a plate in which an opening through which light collected by the cap passes is formed,
The cap mounting part is
A first cap mounting portion comprising a first plate having an opening with a first opening diameter as the opening;
The egg test apparatus according to any one of claims 1 to 5, further comprising: a second cap mounting portion including a second plate having an opening portion having a second opening diameter different from the first opening diameter as the opening portion. . The cap mounting part is
As a cap opening diameter of the cap opening of the cap, which is located on the side in contact with the egg, a third cap mounting portion mounted with a first cap having a first cap opening diameter;
The egg test apparatus according to any one of claims 1 to 6, further comprising a fourth cap mounting portion on which a second cap having a second cap opening diameter different from the first cap opening diameter is mounted as the cap opening diameter.

Images