CN208521022U - The four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope - Google Patents
The four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope Download PDFInfo
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- CN208521022U CN208521022U CN201821374892.1U CN201821374892U CN208521022U CN 208521022 U CN208521022 U CN 208521022U CN 201821374892 U CN201821374892 U CN 201821374892U CN 208521022 U CN208521022 U CN 208521022U
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Abstract
The four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope that the utility model relates to a kind of, including prism one, prism two and prism three, two plane of incidence of prism is adjacent to one light splitting surface of prism, there is air-gap one at interval between the prism two and prism one, three plane of incidence of prism is adjacent to two light splitting surface of prism, it further include prism four, four exit facet of prism is adjacent to one plane of incidence of prism, one dichroic of prism plating, first color light of reflection and the spectro-film for transmiting the second color light and third color light, two dichroic of prism is coated with the second color light of reflection and transmits the spectro-film of third color light.The utility model joined cooperation prism (prism four) before color separation light prism (prism one), so that the light in color separation light prism had not only been able to satisfy the total reflection angle design on fully reflecting surface, but also incident angle of the light in color separation smooth surface can be reduced on demand.
Description
Technical field
The utility model relates to colour splitting prism technical group fields, are based on peeping in 3CMOS Medical hard more particularly to one kind
The glued three color colour splitting prism groups of the four of mirror.
Background technique
Three color colour splitting prism group of Phillips (Philip) (Philips prism assembly) is widely used in optics
In equipment, for example, the polychromatic light of light source, is decomposed by LC projection display optical system by Phillips prism group first
Tri- kinds of monochromatic light of RGB are projected on screen by projection objective by three monochromatic photosynthesis after liquid crystal board is modulated, form full color
Picture.Or can also be projected respectively by three projection objectives, three kinds of sprites are overlapped on the screen, are formed full color and are drawn
Face.
Currently, common Phillips prism group mainly divides blue light prism, dividend light prism and divides the three of green light prism
Part is combined, and due to the limitation of geometry, incident light divides the incident angle on blue light face larger divide blue light prism, generally
Be 29 ° or so, this be coated with the design of score blue Light Film difficulty is larger, and spectrophotometric result is poor.
Utility model content
The glued three color color separation ribs of four that the purpose of this utility model is to provide a kind of based on 3CMOS Medical Rigid Endoscope
Microscope group by the way that one piece of cooperation prism is added before dividing blue light prism that the light on blue light face is divided to enter in dividing blue light prism
The angle of total reflection on firing angle and fully reflecting surface no longer has direct multiple proportion, i.e. no longer limitation mutually, so as to accomplish both
Meet total reflection relationship of the light on fully reflecting surface, and incidence angle on blue light face can will be divided to reduce according to demand.
To achieve the goals above, the utility model provides following technical scheme:
The utility model provides a kind of four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope, including
Prism one, prism two, prism three and prism four, prism one, prism two and prism four are in triangular prism shape respectively, and prism three is in tetragonous
Column, prism one have the plane of incidence, exit facet and a dichroic of light, prism two have the plane of incidence of light, exit facet and point
Color face, prism three have the plane of incidence and exit facet of light, and two plane of incidence of prism is adjacent to one light splitting surface of prism, prism two and rib
There is air-gap one at interval between mirror one, and three plane of incidence of prism is adjacent to two light splitting surface of prism, and prism four has the plane of incidence of light
And exit facet, four exit facet of prism are adjacent to one plane of incidence of prism, one dichroic of prism plating the first color light of reflection and transmission the
The spectro-film of two color lights and third color light, two dichroic of prism are coated with the second color light of reflection and transmit third color light
Spectro-film.
Wherein, one dichroic of prism separates and reflects the first color light and the second color light and third color light is allowed to pass through,
First color light transmits through one exit facet of prism and is gone out after being totally reflected by one plane of incidence of prism, and two light splitting surface of prism is separated and reflected
Second color light and third color light is allowed to pass through, the second color light is saturating through two exit facet of prism after being totally reflected by two plane of incidence of prism
It penetrates, third color light transmits through three exit facet of prism after entering prism three by three plane of incidence of prism and gone out.
As an option, in prism group, one dichroic of prism plating reflection blue light and the spectro-film for transmiting red-green glow, prism two
Dichroic is coated with reflection feux rouges and transmits the spectro-film of green light.
As an option, in the prism group, adjoining has cmos image sensor one on one exit facet of prism, in prism two
Adjoining has cmos image sensor two on exit facet, and adjoining has cmos image sensor three on three exit facet of prism；Wherein, rib
One dichroic of mirror separates and reflects blue light and red-green glow is allowed to pass through, and blue light is emitted after being totally reflected by one plane of incidence of prism through prism one
Face transmission, and vertical incidence is on cmos image sensor one；Two light splitting surface of prism separates and reflects feux rouges and green light is allowed to pass through,
Feux rouges transmits after being totally reflected by two plane of incidence of prism through two exit facet of prism, and vertical incidence is on cmos image sensor two；
Green light is entered after prism three by three plane of incidence of prism to be transmitted through three exit facet of prism, and vertical incidence is in cmos image sensor three
On.
As an option, in the prism group, prism one, prism two, the plane of incidence and exit facet of prism three and prism four are equal
It is coated with visible light anti-reflection film.
As an option, there is air-gap two at interval between prism four and prism one.As an option, air-gap one and air
The thickness of gap two is 0.025mm.
As an option, in the prism group, each prism parameters are as follows: in prism one, one exit facet of prism is rectangle, length
Degree is 13mm, and the cross section of width 6.88mm, prism one are triangle, three of them angle is respectively 33 °, 97 ° and 50 °.Prism
In two, two exit facet of prism is rectangle, and the length is 13mm, width 5.23mm, the cross section of prism two is triangle, thirdly
A angle is respectively 96.5 °, 33.5 ° and 50 °.In prism three, three exit facet of prism is rectangle, and the length is 13mm, width is
The cross section of 6.80mm, prism three are right-angled trapezium, and the angle of on-right angle is respectively 73.5 ° and 106.5 °.In prism four, prism
Four planes of incidence are rectangle, and the length is 13mm, width is that the cross section of 11.6mm prism four is triangle, three of them angle is respectively
74 °, 16 ° and 90 °.
Compared with prior art, the utility model has the advantage that
The utility model, it joined cooperation prism (prism four) before color separation light prism (prism one), so that color separation
Light in light prism had not only been able to satisfy the total reflection angle design on fully reflecting surface, but also can reduce light on demand in color separation smooth surface
On incident angle.The size design of prism group is smaller, light weight, has both met the requirement that can put into rigid endoscope handle,
Meet again for the requirement of cmos image sensor and the glued required area size of prism group.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the vertical direction sectional drawing of Fig. 1 of the utility model；
Fig. 3 is the solid shape schematic diagram of each prism of the utility model；
Fig. 4 is existing tri- color colour splitting prism group schematic diagram of Phillips；
Fig. 5 is that existing Phillips prism component blue Light Film is divided curve graph；
Fig. 6 divides blue Light Film to be divided curve for the utility model embodiment.
Specific embodiment
The embodiments of the present invention are illustrated below in conjunction with attached drawing, it should be understood that embodiment described herein
It is only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment
As shown in Figs. 1-2, the glued three color color separation ribs of four that the present embodiment provides a kind of based on 3CMOS Medical Rigid Endoscope
Microscope group, including prism 1, prism 22, prism 33 and prism 44, prism 1, prism 22 and prism 44 are in trigone respectively
Column, prism 33 are in quadrangular shape, and prism 1 has the plane of incidence, exit facet and the dichroic of light, and prism 22 has light
The plane of incidence, exit facet and dichroic, prism 33 has the plane of incidence and exit facet of light, and two plane of incidence 22 of prism is adjacent to
One light splitting surface 11 of prism, there is air-gap one at interval between prism 22 and prism 1, and three plane of incidence of prism is adjacent to prism two and divides
Smooth surface 21, prism 44 have the plane of incidence and exit facet of light, and four exit facet 42 of prism is adjacent to one plane of incidence 12 of prism, rib
One dichroic 11 of mirror plating the first color light of reflection and the spectro-film for transmiting the second color light and third color light, two dichroic of prism
21 are coated with the second color light of reflection and transmit the spectro-film of third color light.
Wherein, one dichroic 11 of prism separates and reflects the first color light and make the second color light and third color light logical
It crosses, the first color light transmits through one exit facet 13 of prism and goes out, two light splitting surface 21 of prism after being totally reflected by one plane of incidence 12 of prism
Separate and reflect the second color light and third color light is allowed to pass through, the second color light by two plane of incidence 22 of prism be totally reflected after through rib
Two exit facet 23 of mirror transmits and goes out, and third color light is entered saturating through three exit facet 31 of prism after prism 33 by three plane of incidence of prism
It penetrates.
In one embodiment, in prism group, one dichroic 11 of prism plating reflection blue light and the spectro-film for transmiting red-green glow, rib
Two dichroic 21 of mirror is coated with reflection feux rouges and transmits the spectro-film of green light.That is, prism 1 is to divide blue light prism, prism 22 is point
Feux rouges prism, prism 33 are to divide green light prism.For remaining working face (plane of incidence and exit facet of each prism) of prism group,
Visible light anti-reflection film can be plated.It has been observed that being that polychromatic light is successively divided into blue, red and green herein；It is of course also possible to right
Polychromatic light color separation sequence is exchanged, and correlated characteristic is adaptively adjusted at this time.
In the prism group, adjoining has cmos image sensor one on one exit facet of prism, on two exit facet of prism
Adjoining has cmos image sensor two, and adjoining has cmos image sensor three on three exit facet of prism；Wherein, one color separation of prism
Face separates and reflects blue light and red-green glow is allowed to pass through, and blue light Ib is saturating through one exit facet of prism after being totally reflected by one plane of incidence of prism
It penetrates, and vertical incidence is on one CS1 of cmos image sensor；Two light splitting surface of prism separates and reflects feux rouges and green light is allowed to pass through,
Feux rouges Ir is transmitted after being totally reflected by two plane of incidence of prism through two exit facet of prism, and vertical incidence is in cmos image sensor two
On CS2；Green light Ig is entered after prism three by three plane of incidence of prism to be transmitted through three exit facet of prism, and vertical incidence is in cmos image
On three CS3 of sensor.It has been observed that final realize, the polychromatic light that light source issues is resolved into R, G, B three coloured light and is imaged on corresponding
Cmos image sensor on.
It is following its above-described embodiment to be specifically described.
In 3CMOS Medical Rigid Endoscope optical system, tri- color colour splitting prism group of Phillips is important composition portion
The polychromatic light that light source issues is resolved into R, G, B three coloured light and is imaged on corresponding cmos image sensor by part, and process is subsequent
Color circuit is closed by image restoring.Wherein, light path of R, G, B three coloured light in Phillips prism group is identical, and tri- color of R, G, B
The equal vertical incidence cmos image sensor of light.
The utility model is that prism 1, prism 22, prism 33 and prism 44 are abutted to form to four gluing Phillips
Prism group structure.Referring to Fig. 1 and Fig. 2,3 cmos image sensors are adjacent to corresponding prism respectively.
One dichroic of prism and two dichroic of prism meet the total reflection condition of blue light and feux rouges, Phillips prism respectively
The geometric dimension of group each section is calculated by precision, meets polychromatic light color separation, total reflection, aplanatism and RGB three coloured light and hangs down
Directly it is incident on the requirement on corresponding cmos image sensor surface.
Referring to Fig. 3, it is the solid shape schematic diagram of each prism, the solid shape of quadrangular a1 and triangular prism a2 is shown in figure
Schematic diagram.The material of each prism of prism group is BK7 glass, and each prism parameters embodiment is as follows, referring to figures 1-3:
In prism one, one exit facet of prism is rectangle, and the length is 13mm, width 6.88mm, the cross sections of prism one
(triangular prism bottom surface) be triangle, three of them angle be respectively angle c1 be 33 °, angle c2 is 50 ° and 97 ° of angles.
In prism two, two exit facet of prism is rectangle, and the length is 13mm, width 5.23mm, the cross sections of prism two
(triangular prism bottom surface) is triangle, three of them angle is respectively 96.5 ° of angles, angle d2 is 33.5 ° and angle d1 is 50 °.
In prism three, three exit facet of prism is rectangle, and the length is 13mm, width 6.80mm, the cross sections of prism three
(quadrangular bottom surface) is right-angled trapezium, and it is 73.5 ° and angle e2 is 106.5 ° that the angle of on-right angle, which is respectively angle e1,.
In prism four, four plane of incidence of prism is rectangle, and the length is 13mm, width is the cross section of 11.6mm prism four
(triangular prism bottom surface) be triangle, three of them angle be respectively angle b2 be 74 °, angle b1 is 16 ° and 90 ° of angles.
There is air-gap two at interval between prism four and prism one.Air-gap one and air-gap two can guarantee light in each prism
The total reflection effect having had on fully reflecting surface.As an option, the thickness of air-gap one and air-gap two is 0.025mm.
Referring to fig. 2, be prism group be vertical direction sectional drawing.The polychromatic light that light source issues passes through four plane of incidence 41 of prism
Into prism group, enters prism 1 through cooperation four exit facet 42 of prism, divide blue light face (one dichroic of prism) in prism one
11 (dichroic coatings for being coated with the saturating red-green glow of anti-blue light) are punished into blue light and yellow light, wherein blue light is reflected, and incident in prism one
It is totally reflected on face 12, is transmitted by one exit facet 13 of prism and projects the corresponding cmos sensor CS1 for receiving blue light
On；Yellow light enters prism group prism 22 by the outgoing of one light splitting surface 11 of prism, in the dividend smooth surface (light splitting of prism two of prism two
Face) 21 (be coated with anti-feux rouges reveal the green the dichroic coating of light) punishment are at feux rouges and green light, wherein and feux rouges is reflected, and is entered in prism two
It penetrates on face 22 and is totally reflected, transmitted by two exit facet 23 of prism and project the corresponding cmos sensor for receiving feux rouges
On CS2；Green light is emitted by two dichroic 21 of prism and enters prism group prism 33, and is emitted through three exit facet 31 of prism
On the corresponding cmos sensor CS3 for receiving green light.Signal on three pieces cmos sensor is completed by subsequent conditioning circuit processing
It closes color and is output on display.
Fig. 4 show common three gluings Phillips prism group, and prism group 100 includes three prisms 102,104,106, and
It is coated with the dichroic surface 108,110 of dichroic filter effect.Prism 102 and 104 is spaced each other an air gap (air gap) 114, when entering
It penetrates after light I enters prism group 100, dichroic surface 110 can filter out and reflect blue light IB, and feux rouges IR and green light IG can then be penetrated point
Color table face 110, later, the blue light IB reflected enter liquid crystal light valve (liquid after reflecting again via an inner surface of prism 102
crystal light valve；The equipment 112B such as LCLV).Then, the incident light I of blue light IB has been filtered out by entering after air gap 114
It is incident upon dichroic surface 108, dichroic surface 108 can filter out and reflect feux rouges IR and green light IG be allowed to pass through, therefore green light IG is directly worn
Enter liquid crystal light valve 112G after saturating dichroic surface 108, after feux rouges IR is reflected by dichroic surface 108, by air gap 114 and prism
Total reflection effect that 104 interface occurs and liquid crystal light valve 112R can be reflected into.
Referring to fig. 4, as above-mentioned, by geometry it is found that dividing in blue light prism the light to be in the incidence angle ∠ a divided on blue light face
The half of incidence angle ∠ b of the light on fully reflecting surface, i.e. ∠ a=1/2 ∠ b, when prism material is BK7 glass, visible light
Refractive index is 1.516, then its cirtical angle of total reflection isAt this point, ∠ a is most
It is small, it is 20.64 °, but in actual design, since the error of process and assemble etc. exists, generally faces the ratio total reflection that ∠ b is designed
Boundary angle is big, therefore ∠ a can be increased with it, and three common gluing Phillips prism group light are in the incidence angle ∠ a divided on blue light face
It is 29 °.
It joined and match before dividing blue light prism in the four gluing Phillips prism group of modified of the utility model design
Prism is closed, keeps the fully reflecting surface of score blue light prism no longer vertical with incident polychromatic light, by geometry it is found that this time is dividing
Incidence angle ∠ A and light on blue light face no longer have above-mentioned multiple proportion in the incidence angle ∠ B divided on blue light prism fully reflecting surface,
The size of ∠ A can be selected as needed, and be selected as 17 ° here.After the size of ∠ A determines, the size of ∠ B depends on cooperation rib
The size of mirror ∠ 11, mathematical relationship are ∠ B=2 ∠ A+ ∠ 11, and wherein ∠ A is constant, by changing the big of cooperation prism ∠ 11
The size of small i.e. changeable ∠ B.Here choosing ∠ 11 is 16 °, brings above-mentioned formula, available ∠ B=2 ∠ A+ ∠ 11=2 into
× 17 °+16 °=50 °, it is greater than 41.28 °, meets total reflection condition.
It is analyzed by Film Optics it is found that film layer is respectively as follows: η for the equivalent admittance of S polarized light and P-polarized lightis=nicos
θ andBy the formula it is found that with incidence angle increase, equivalent admittance of the film layer for S polarized light and P-polarized light
Difference it is bigger.Referring to figs. 5 and 6, respectively light in the incidence angle divided on blue light face is 29 ° and 17 ° time-division blue light film layers
Spectrophotometric result, wherein two film layers use identical membrane stack formula (M) ^1 (0.5HL0.5H) ^10 (0.6H1.25L0.6H) ^4,
In, M represents MgF2, H represents TiO2, L represents SiO2.As seen from Figure 5, under conditions of identical membrane stack formula, light is in a point indigo plant
The separation of its bigger S polarized light of smooth surface incidence angle and P-polarized light is bigger and lower in blue wave band light reflectance, film layer point
Light effect is poor.In comparison, as seen from Figure 6, light is dividing the incidence angle in blue light face smaller, S polarized light and P-polarized light
Separation it is smaller and higher in blue wave band light reflectance, film layer spectrophotometric result is preferable.
As above-mentioned, which is to increase cooperation prism (prism 4 4) before dividing blue light prism, is made
Angle of incidence of light in score blue light prism on light splitting surface angle of incidence of light and fully reflecting surface no longer has direct multiple proportion,
That is no longer directly limitation mutually, and then light splitting surface incidence angle can be reduced on demand under conditions of both meeting total reflection, it reduces
Divide the design of blue Light Film to be coated with difficulty, enhances the spectrophotometric result of point blue Light Film.(divide angle of incidence of light A on blue light face with
Angle of total reflection B is no longer limited mutually, so as to accomplish not only to meet total reflection relationship of the light on fully reflecting surface, but also can be incited somebody to action
Incidence angle A on blue light face is divided to reduce according to demand.)
The four gluing Phillips prism group upper surface is less than 13.1mm, and plane of incidence length to lower surface distance
13.00mm, width 11.60mm ensure that color-separation and color-recombination requirement, meet needed for 3CMOS imaging sensor and prism group cooperation
Spatial area can be installed into endoscope handle and provide enough installation spaces, and small volume for the circuit in handle.
It should be appreciated that the utility model above-described embodiment and example, is not intended to limit for description and interpretation purpose
The scope of the utility model.The scope of the utility model is defined by claim, rather than is determined by above-described embodiment and example
Justice.
Claims (10)
1. a kind of four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope, including prism one, prism two and rib
Mirror three, the prism one and prism two are in triangular prism shape respectively, and the prism three is in quadrangular shape, and the prism one has light
The plane of incidence, exit facet and dichroic, the prism two have light the plane of incidence, exit facet and dichroic, the prism three
The plane of incidence and exit facet with light, two plane of incidence of prism are adjacent to one light splitting surface of prism, the prism two and prism
There is air-gap one at interval between one, and three plane of incidence of prism is adjacent to two light splitting surface of prism, which is characterized in that further includes prism
Four, the prism four is in triangular prism shape, and the prism four has the plane of incidence and exit facet of light, and four exit facet of prism is adjacent
It is connected to one plane of incidence of prism, one dichroic of prism plating, first color light of reflection and the second color light of transmission and third color light
Spectro-film, two dichroic of prism be coated with reflection the second color light and transmit third color light spectro-film；
Wherein, one dichroic of prism separates and reflects the first color light and the second color light and third color light is allowed to pass through, and first
Color light transmits through one exit facet of prism and is gone out after being totally reflected by one plane of incidence of prism, and two light splitting surface of prism separates and reflects second
Color light and third color light is allowed to pass through, the second color light be totally reflected by two plane of incidence of prism after through the transmission of two exit facet of prism and
Out, third color light transmits through three exit facet of prism after entering prism three by three plane of incidence of prism and is gone out.
2. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature exist
In in the prism group, one dichroic of prism plating reflection blue light and the spectro-film for transmiting red-green glow, two dichroic of prism are coated with instead
It penetrates feux rouges and transmits the spectro-film of green light.
3. the four glued three color colour splitting prism groups according to claim 2 based on 3CMOS Medical Rigid Endoscope, feature exist
In in the prism group, adjoining has cmos image sensor one on one exit facet of prism, and adjoining has on two exit facet of prism
Cmos image sensor two, adjoining has cmos image sensor three on three exit facet of prism；Wherein, one dichroic of prism separates
And reflect blue light and red-green glow is allowed to pass through, blue light transmits after being totally reflected by one plane of incidence of prism through one exit facet of prism, and vertical
It is incident on cmos image sensor one；Two light splitting surface of prism separates and reflects feux rouges and green light is allowed to pass through, and feux rouges is by prism two
It is transmitted after plane of incidence total reflection through two exit facet of prism, and vertical incidence is on cmos image sensor two；Green light is by prism three
The plane of incidence transmits after entering prism three through three exit facet of prism, and vertical incidence is on cmos image sensor three.
4. the four glued three color colour splitting prism groups according to claim 2 based on 3CMOS Medical Rigid Endoscope, feature exist
In, in the prism group, prism one, prism two, prism three and prism four the plane of incidence and exit facet be coated with visible light anti-reflection film.
5. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature exist
In there is air-gap two at interval between the prism four and prism one.
6. the four glued three color colour splitting prism groups according to claim 5 based on 3CMOS Medical Rigid Endoscope, feature exist
In the thickness of the air-gap one and air-gap two is 0.025mm.
7. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature exist
In in the prism one, one exit facet of prism is rectangle, and the cross section the length is 13mm, width 6.88mm, prism one is
Triangle, three of them angle are respectively 33 °, 97 ° and 50 °.
8. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature exist
In in the prism two, two exit facet of prism is rectangle, and the cross section the length is 13mm, width 5.23mm, prism two is
Triangle, three of them angle are respectively 96.5 °, 33.5 ° and 50 °.
9. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature exist
In in the prism three, three exit facet of prism is rectangle, and the cross section the length is 13mm, width 6.80mm, prism three is
Right-angled trapezium, the angle of on-right angle are respectively 73.5 ° and 106.5 °.
10. the four glued three color colour splitting prism groups according to claim 1 based on 3CMOS Medical Rigid Endoscope, feature
It is, in the prism four, four plane of incidence of prism is rectangle, and the length is 13mm, width is the cross section of 11.6mm prism four
For triangle, three of them angle is respectively 74 °, 16 ° and 90 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374892.1U CN208521022U (en) | 2018-08-24 | 2018-08-24 | The four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374892.1U CN208521022U (en) | 2018-08-24 | 2018-08-24 | The four glued three color colour splitting prism groups based on 3CMOS Medical Rigid Endoscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466979A (en) * | 2021-07-01 | 2021-10-01 | 希烽光电科技(南京)有限公司 | Double-reflection prism for photoelectric monitoring and photoelectric monitoring assembly thereof |
| CN113865709A (en) * | 2021-08-16 | 2021-12-31 | 杭州博联智能科技股份有限公司 | Intelligent lamp color testing device and method based on prism color separation |
-
2018
- 2018-08-24 CN CN201821374892.1U patent/CN208521022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466979A (en) * | 2021-07-01 | 2021-10-01 | 希烽光电科技(南京)有限公司 | Double-reflection prism for photoelectric monitoring and photoelectric monitoring assembly thereof |
| CN113865709A (en) * | 2021-08-16 | 2021-12-31 | 杭州博联智能科技股份有限公司 | Intelligent lamp color testing device and method based on prism color separation |
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