Uniform-transition double-lens achromatic optical module and commercial lighting lamp

Abstract

The utility model relates to a double-lens achromatic optical module with uniform transition, which comprises a first-stage lens and a second-stage lens which are coaxially arranged, the first-stage lens is a concave lens or a convex lens, the second-stage lens is a convex lens, and the incident surface of the second-stage lens contains textures and at least two kinds of micro lens arrays. And the first-stage lens and the second-stage lens have different focal powers. The utility model further relates to a corresponding commercial lighting lamp. According to the double-lens achromatic optical module with uniform transition and the commercial lighting lamp, the chromatic dispersion phenomenon of a spotlight in direct illumination, wall wiping and wall washing application scenes cannot be visually perceived, the transition of main and auxiliary light spots is uniform, and the impression experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting technical field especially a kind of double-lens achromatic optical module and commercial lighting lamps and lanterns of transition uniformity. BACKGROUND

[0002] At present on the market, the optical scheme of spotlight is mainly TIR lens, the optical efficiency of this scheme is higher, but there is chromatic dispersion phenomenon that can be visually perceived when direct illumination, wall wiping and wall washing, and because TIR lens scheme has two light paths of total reflection and refraction, it will lead to uneven transition of main and auxiliary light spots, and the light spot effect is poor, thereby reducing the user's use experience.

[0003] With the continuous improvement of user's pursuit of indoor lighting quality, it is necessary to design an achromatic optical module with uniform transition, so that the chromatic dispersion phenomenon of spotlight in direct illumination, wall wiping and wall washing application scenarios is not visually perceptible, and the transition of main and auxiliary light spots is uniform, to improve user's visual experience. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of double-lens achromatic optical module and commercial lighting lamps and lanterns of transition uniformity.

[0005] To achieve the above purpose, the first aspect of the utility model provides a kind of double-lens achromatic optical module with uniform transition, with the following technical solutions: a primary lens and a secondary lens are coaxially arranged, the primary lens is a concave lens or a convex lens, the secondary lens is a convex lens, the light entrance surface of the secondary lens contains etching lines and not less than two micro-lens arrays, and the primary lens and the secondary lens have different optical powers.

[0006] Preferably, the light entrance surface of the secondary lens includes an inner ring micro-lens array and an outer ring micro-lens array, the outer ring micro-lens array is distributed around the circumference of the inner ring micro-lens array, the array elements of the inner ring micro-lens array are concave lens array elements, and the array elements of the outer ring micro-lens array are convex lens array elements.

[0007] Preferably, the inner ring micro-lens array is circular, and the outer ring micro-lens array is annular.

[0008] Preferably, the diameter D1 of the inner ring micro-lens array and the diameter D2 of the outer ring micro-lens array satisfy the relationship 1≤D1 / D2≤1.5, and the ratio of the sagittal curvature radius R1 of the inner ring micro-lens array to the sagittal curvature radius R2 of the outer ring micro-lens array satisfies the relationship 0.5≤R1 / R2≤1.

[0009] ​​Preferably, the inner circle microlens array is arranged in a tessellation arrangement, and the outer circle microlens array is arranged in a Fermat spiral arrangement; or, the inner circle microlens array is arranged in a Fermat spiral arrangement, and the outer circle microlens array is arranged in a tessellation arrangement.

[0010] Preferably, the etch pattern has a specification of VDI 18.

[0011] Preferably, the primary lens is a PC lens, and the secondary lens is a PMMA lens; or, the primary lens is a silica gel lens, and the secondary lens is a PMMA lens; or, the primary lens is a high borosilica lens, and the secondary lens is a PMMA lens; or, the primary lens is a silica gel lens, and the secondary lens is a PC lens; or, the primary lens is a high borosilica lens, and the secondary lens is a PC lens.

[0012] The second aspect of the utility model provides a kind of commercial lighting lamps, its main feature is, including the double-lens achromatic optical module of the described.

[0013] Preferably, the commercial lighting lamp is a spotlight for direct illumination, wall washing or wall grazing applications.

[0014] The double-lens achromatic optical module and the commercial lighting lamp of the utility model make the dispersion phenomenon of the spotlight in direct illumination, wall washing and wall grazing applications visually imperceptible, and the transition of primary and secondary light spots is uniform, improving user experience. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical scheme in the embodiments of the utility model, the following briefly introduces the drawing needed to be used in the embodiments.

[0016] Figure 1 It is the structure diagram of the first embodiment of the double-lens achromatic optical module of the utility model of transition uniformity.

[0017] Figure 2 It is the structure diagram of the second embodiment of the double-lens achromatic optical module of the utility model of transition uniformity.

[0018] Figure 3 It is the structure diagram of secondary lens in the first embodiment of the double-lens achromatic optical module of the utility model of transition uniformity.

[0019] Figure 4 It is the structure diagram of the third embodiment of the double-lens achromatic optical module of the utility model of transition uniformity. DETAILED DESCRIPTION

[0020] In order to make the technical content of the utility model clearer, the following further describes in combination with specific embodiments. Embodiments

[0021] As Figure 1 shown, it is the first embodiment of the transition uniform doublet achromatic optical module of the utility model, and the main and auxiliary light spot transition is uniform and the light spot chromatic aberration in the straight illumination, wall wiping and wall washing scene is visually imperceptible. In the first embodiment, a coaxial first lens 1 and a second lens 2 are arranged, the first lens 1 is a concave lens, the second lens 2 is a convex lens, the light entrance surface of the second lens 2 contains etching lines and two different micro-lens arrays, the first lens 1 and the second lens 2 have different optical powers, and different optical powers can be allocated according to the achromatic formula to minimize the chromatic aberration value of the doublet module. The specification of the etching line is greater than or equal to VDI 18, which can better fuse the two different microstructure arrays together to achieve the effect of uniform transition of the main and auxiliary light spots.

[0022] As Figure 3 shown, the light entrance surface of the second lens includes an inner circle micro-lens array 3 and an outer circle micro-lens array 4, the outer circle micro-lens array 4 is distributed around the circumference of the inner circle micro-lens array 3, the array element of the inner circle micro-lens array 3 is a concave lens element, i.e. an inner concave bead surface, and the array element of the outer circle micro-lens array 4 is a convex lens element, i.e. an outer convex bead surface. According to the refraction principle, the concave bead surface array can make the light rays passing through the inner circle of the light entrance surface of the second lens diverge outward, and the convex bead surface array can make the light rays passing through the outer circle of the light entrance surface of the second lens converge inward, so as to increase the uniformity of the transition of the main and auxiliary light spots. The inner circle micro-lens array 3 is circular, and the outer circle micro-lens array 4 is annular. In order to improve the uniformity of the transition of the main and auxiliary light spots, different arrangement microstructure arrays are added to the light entrance surface of the second lens, the arrangement of the inner circle micro-lens array 3 is a tessellation polygon arrangement, and the arrangement of the outer circle micro-lens array 4 is a Fermat spiral arrangement.

[0023] The relationship between the diameter D1 of the inner circle micro-lens array 3 and the diameter D2 of the outer circle micro-lens array 4 is 1≤ ≤1.5, and the ratio of the bead surface curvature radius R1 of the inner circle micro-lens array 3 to the bead surface curvature radius R2 of the outer circle micro-lens array 4 is 0.5≤ ≤1.

[0024] According to the achromatic principle, the first-order lens and the second-order lens select optical materials with different Abbe coefficients, for example, the first-order lens is a PC lens, and the second-order lens is a PMMA lens, or the first-order lens is a silica gel lens, and the second-order lens is a PMMA lens, or the first-order lens is a high borosilicate lens, and the second-order lens is a PMMA lens, or the first-order lens is a silica gel lens, and the second-order lens is a PC lens, or the first-order lens is a high borosilicate lens, and the second-order lens is a PC lens. And, the first-order lens and the second-order lens are divided and matched with appropriate optical powers, so that the chromatic aberration value is minimized, so that the chromatic aberration of the double-lens module is achromatic, and the chromatic dispersion of the light spot is visually uncheckable.

[0025] The first embodiment of the utility model is especially suitable for commercial lighting lamps, and is suitable for spotlights in direct illumination, wall wiping or wall washing applications. Embodiment

[0026] As shown in Figure 2 The second embodiment of the utility model of the transition uniform double-lens achromatic optical module is shown. The main difference between the second embodiment and the first embodiment is that the first-order lens 1 is a convex lens. Embodiment

[0027] As shown in Figure 4 The third embodiment of the utility model of the transition uniform double-lens achromatic optical module is shown. The main difference between the third embodiment and the first embodiment is that the arrangement of the inner circle microlens array is Fermat spiral arrangement, and the arrangement of the outer circle microlens array is Thiessen polygon arrangement.

[0028] The transition uniform double-lens achromatic optical module and the commercial lighting lamp of the utility model make the chromatic dispersion phenomenon of the spotlight in the direct illumination, wall wiping and wall washing application scenes visually uncheckable, and the main and auxiliary light spots are transitioned uniformly, and the user's visual experience is improved.

[0029] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the specification and drawings should be considered as illustrative rather than limiting.

Claims

1. A dual-lens achromatic optical module with uniform transition, characterized in that: The doublet achromatic optical module comprises a primary lens and a secondary lens arranged coaxially, the primary lens is a concave lens or a convex lens, the secondary lens is a convex lens, the light entrance surface of the secondary lens comprises an etched pattern and a micro-lens array with not less than two kinds, and the primary lens and the secondary lens have different optical powers.

2. The transition uniform doublet achromatic optical module according to claim 1, characterized in that, The light entrance surface of the secondary lens comprises an inner ring micro-lens array and an outer ring micro-lens array, the outer ring micro-lens array is distributed around the circumference of the inner ring micro-lens array, the array elements of the inner ring micro-lens array are concave lens array elements, and the array elements of the outer ring micro-lens array are convex lens array elements.

3. The transition uniform doublet achromatic optical module according to claim 2, characterized in that, The inner ring micro-lens array is circular, and the outer ring micro-lens array is annular.

4. The transition uniform doublet achromatic optical module according to claim 3, characterized in that, The relationship between the diameter D1 of the inner circle microlens array and the diameter D2 of the outer circle microlens array is The ratio of the sagittal curvature radius R1 of the inner circle microlens array to the sagittal curvature radius R2 of the outer circle microlens array is 5. The transition uniform doublet achromatic optical module according to claim 2, characterized in that, The arrangement of the inner ring micro-lens array is a tessellation polygon arrangement, and the arrangement of the outer ring micro-lens array is a Fermat spiral arrangement; or the arrangement of the inner ring micro-lens array is a Fermat spiral arrangement, and the arrangement of the outer ring micro-lens array is a tessellation polygon arrangement.

6. The transition uniform doublet achromatic optical module according to claim 1, characterized in that, The specification of the etched pattern is ≥ VDI 18.

7. The double-lens achromatic optical module with uniform transition according to claim 1, characterized in that: The primary lens is a PC lens, and the secondary lens is a PMMA lens; or the primary lens is a silica gel lens, and the secondary lens is a PMMA lens; or the primary lens is a high borosilicate lens, and the secondary lens is a PMMA lens; or the primary lens is a silica gel lens, and the secondary lens is a PC lens; or the primary lens is a high borosilicate lens, and the secondary lens is a PC lens.

8. A commercial lighting luminaire characterized by, The doublet achromatic optical module comprises a primary lens and a secondary lens arranged coaxially, the primary lens is a concave lens or a convex lens, the secondary lens is a convex lens, the light entrance surface of the secondary lens comprises an etched pattern and a micro-lens array with not less than two kinds, and the primary lens and the secondary lens have different optical powers.

9. The commercial lighting luminaire of claim 8, wherein, The commercial lighting lamp is a spotlight for direct illumination, wall wiping or wall washing applications.

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